diff --git a/.drone.yml b/.drone.yml index 8dd673f19..ee23f1ad0 100644 --- a/.drone.yml +++ b/.drone.yml @@ -339,7 +339,7 @@ steps: pull: default image: alpine:3.11 commands: - - ./scripts/update-locales.sh + - ./build/update-locales.sh - name: push pull: always diff --git a/.gitattributes b/.gitattributes index 9024eba58..f76f5a638 100644 --- a/.gitattributes +++ b/.gitattributes @@ -6,5 +6,5 @@ conf/* linguist-vendored docker/* linguist-vendored options/* linguist-vendored public/* linguist-vendored -scripts/* linguist-vendored +build/* linguist-vendored templates/* linguist-vendored diff --git a/Makefile b/Makefile index f34658d57..c78be8755 100644 --- a/Makefile +++ b/Makefile @@ -80,7 +80,7 @@ TAGS ?= TAGS_SPLIT := $(subst $(COMMA), ,$(TAGS)) TAGS_EVIDENCE := $(MAKE_EVIDENCE_DIR)/tags -GO_DIRS := cmd integrations models modules routers scripts services vendor +GO_DIRS := cmd integrations models modules routers build services vendor GO_SOURCES := $(wildcard *.go) GO_SOURCES += $(shell find $(GO_DIRS) -type f -name "*.go" -not -path modules/options/bindata.go -not -path modules/public/bindata.go -not -path modules/templates/bindata.go) @@ -234,10 +234,7 @@ errcheck: .PHONY: revive revive: - @hash revive > /dev/null 2>&1; if [ $$? -ne 0 ]; then \ - $(GO) get -u github.com/mgechev/revive; \ - fi - revive -config .revive.toml -exclude=./vendor/... ./... || exit 1 + GO111MODULE=on $(GO) run -mod=vendor build/lint.go -config .revive.toml -exclude=./vendor/... ./... || exit 1 .PHONY: misspell-check misspell-check: diff --git a/scripts/generate-bindata.go b/build/generate-bindata.go similarity index 100% rename from scripts/generate-bindata.go rename to build/generate-bindata.go diff --git a/scripts/generate-gitignores.go b/build/generate-gitignores.go similarity index 100% rename from scripts/generate-gitignores.go rename to build/generate-gitignores.go diff --git a/scripts/generate-licenses.go b/build/generate-licenses.go similarity index 100% rename from scripts/generate-licenses.go rename to build/generate-licenses.go diff --git a/build/lint.go b/build/lint.go new file mode 100644 index 000000000..bc6ddbec4 --- /dev/null +++ b/build/lint.go @@ -0,0 +1,325 @@ +// Copyright 2020 The Gitea Authors. All rights reserved. +// Copyright (c) 2018 Minko Gechev. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +// +build ignore + +package main + +import ( + "flag" + "fmt" + "io/ioutil" + "os" + "path/filepath" + "strings" + + "github.com/BurntSushi/toml" + "github.com/mgechev/dots" + "github.com/mgechev/revive/formatter" + "github.com/mgechev/revive/lint" + "github.com/mgechev/revive/rule" + "github.com/mitchellh/go-homedir" +) + +func fail(err string) { + fmt.Fprintln(os.Stderr, err) + os.Exit(1) +} + +var defaultRules = []lint.Rule{ + &rule.VarDeclarationsRule{}, + &rule.PackageCommentsRule{}, + &rule.DotImportsRule{}, + &rule.BlankImportsRule{}, + &rule.ExportedRule{}, + &rule.VarNamingRule{}, + &rule.IndentErrorFlowRule{}, + &rule.IfReturnRule{}, + &rule.RangeRule{}, + &rule.ErrorfRule{}, + &rule.ErrorNamingRule{}, + &rule.ErrorStringsRule{}, + &rule.ReceiverNamingRule{}, + &rule.IncrementDecrementRule{}, + &rule.ErrorReturnRule{}, + &rule.UnexportedReturnRule{}, + &rule.TimeNamingRule{}, + &rule.ContextKeysType{}, + &rule.ContextAsArgumentRule{}, +} + +var allRules = append([]lint.Rule{ + &rule.ArgumentsLimitRule{}, + &rule.CyclomaticRule{}, + &rule.FileHeaderRule{}, + &rule.EmptyBlockRule{}, + &rule.SuperfluousElseRule{}, + &rule.ConfusingNamingRule{}, + &rule.GetReturnRule{}, + &rule.ModifiesParamRule{}, + &rule.ConfusingResultsRule{}, + &rule.DeepExitRule{}, + &rule.UnusedParamRule{}, + &rule.UnreachableCodeRule{}, + &rule.AddConstantRule{}, + &rule.FlagParamRule{}, + &rule.UnnecessaryStmtRule{}, + &rule.StructTagRule{}, + &rule.ModifiesValRecRule{}, + &rule.ConstantLogicalExprRule{}, + &rule.BoolLiteralRule{}, + &rule.RedefinesBuiltinIDRule{}, + &rule.ImportsBlacklistRule{}, + &rule.FunctionResultsLimitRule{}, + &rule.MaxPublicStructsRule{}, + &rule.RangeValInClosureRule{}, + &rule.RangeValAddress{}, + &rule.WaitGroupByValueRule{}, + &rule.AtomicRule{}, + &rule.EmptyLinesRule{}, + &rule.LineLengthLimitRule{}, + &rule.CallToGCRule{}, + &rule.DuplicatedImportsRule{}, + &rule.ImportShadowingRule{}, + &rule.BareReturnRule{}, + &rule.UnusedReceiverRule{}, + &rule.UnhandledErrorRule{}, + &rule.CognitiveComplexityRule{}, + &rule.StringOfIntRule{}, +}, defaultRules...) + +var allFormatters = []lint.Formatter{ + &formatter.Stylish{}, + &formatter.Friendly{}, + &formatter.JSON{}, + &formatter.NDJSON{}, + &formatter.Default{}, + &formatter.Unix{}, + &formatter.Checkstyle{}, + &formatter.Plain{}, +} + +func getFormatters() map[string]lint.Formatter { + result := map[string]lint.Formatter{} + for _, f := range allFormatters { + result[f.Name()] = f + } + return result +} + +func getLintingRules(config *lint.Config) []lint.Rule { + rulesMap := map[string]lint.Rule{} + for _, r := range allRules { + rulesMap[r.Name()] = r + } + + lintingRules := []lint.Rule{} + for name := range config.Rules { + rule, ok := rulesMap[name] + if !ok { + fail("cannot find rule: " + name) + } + lintingRules = append(lintingRules, rule) + } + + return lintingRules +} + +func parseConfig(path string) *lint.Config { + config := &lint.Config{} + file, err := ioutil.ReadFile(path) + if err != nil { + fail("cannot read the config file") + } + _, err = toml.Decode(string(file), config) + if err != nil { + fail("cannot parse the config file: " + err.Error()) + } + return config +} + +func normalizeConfig(config *lint.Config) { + if config.Confidence == 0 { + config.Confidence = 0.8 + } + severity := config.Severity + if severity != "" { + for k, v := range config.Rules { + if v.Severity == "" { + v.Severity = severity + } + config.Rules[k] = v + } + for k, v := range config.Directives { + if v.Severity == "" { + v.Severity = severity + } + config.Directives[k] = v + } + } +} + +func getConfig() *lint.Config { + config := defaultConfig() + if configPath != "" { + config = parseConfig(configPath) + } + normalizeConfig(config) + return config +} + +func getFormatter() lint.Formatter { + formatters := getFormatters() + formatter := formatters["default"] + if formatterName != "" { + f, ok := formatters[formatterName] + if !ok { + fail("unknown formatter " + formatterName) + } + formatter = f + } + return formatter +} + +func buildDefaultConfigPath() string { + var result string + if homeDir, err := homedir.Dir(); err == nil { + result = filepath.Join(homeDir, "revive.toml") + if _, err := os.Stat(result); err != nil { + result = "" + } + } + + return result +} + +func defaultConfig() *lint.Config { + defaultConfig := lint.Config{ + Confidence: 0.0, + Severity: lint.SeverityWarning, + Rules: map[string]lint.RuleConfig{}, + } + for _, r := range defaultRules { + defaultConfig.Rules[r.Name()] = lint.RuleConfig{} + } + return &defaultConfig +} + +func normalizeSplit(strs []string) []string { + res := []string{} + for _, s := range strs { + t := strings.Trim(s, " \t") + if len(t) > 0 { + res = append(res, t) + } + } + return res +} + +func getPackages() [][]string { + globs := normalizeSplit(flag.Args()) + if len(globs) == 0 { + globs = append(globs, ".") + } + + packages, err := dots.ResolvePackages(globs, normalizeSplit(excludePaths)) + if err != nil { + fail(err.Error()) + } + + return packages +} + +type arrayFlags []string + +func (i *arrayFlags) String() string { + return strings.Join([]string(*i), " ") +} + +func (i *arrayFlags) Set(value string) error { + *i = append(*i, value) + return nil +} + +var configPath string +var excludePaths arrayFlags +var formatterName string +var help bool + +var originalUsage = flag.Usage + +func init() { + flag.Usage = func() { + originalUsage() + } + // command line help strings + const ( + configUsage = "path to the configuration TOML file, defaults to $HOME/revive.toml, if present (i.e. -config myconf.toml)" + excludeUsage = "list of globs which specify files to be excluded (i.e. -exclude foo/...)" + formatterUsage = "formatter to be used for the output (i.e. -formatter stylish)" + ) + + defaultConfigPath := buildDefaultConfigPath() + + flag.StringVar(&configPath, "config", defaultConfigPath, configUsage) + flag.Var(&excludePaths, "exclude", excludeUsage) + flag.StringVar(&formatterName, "formatter", "", formatterUsage) + flag.Parse() +} + +func main() { + config := getConfig() + formatter := getFormatter() + packages := getPackages() + + revive := lint.New(func(file string) ([]byte, error) { + return ioutil.ReadFile(file) + }) + + lintingRules := getLintingRules(config) + + failures, err := revive.Lint(packages, lintingRules, *config) + if err != nil { + fail(err.Error()) + } + + formatChan := make(chan lint.Failure) + exitChan := make(chan bool) + + var output string + go (func() { + output, err = formatter.Format(formatChan, *config) + if err != nil { + fail(err.Error()) + } + exitChan <- true + })() + + exitCode := 0 + for f := range failures { + if f.Confidence < config.Confidence { + continue + } + if exitCode == 0 { + exitCode = config.WarningCode + } + if c, ok := config.Rules[f.RuleName]; ok && c.Severity == lint.SeverityError { + exitCode = config.ErrorCode + } + if c, ok := config.Directives[f.RuleName]; ok && c.Severity == lint.SeverityError { + exitCode = config.ErrorCode + } + + formatChan <- f + } + + close(formatChan) + <-exitChan + if output != "" { + fmt.Println(output) + } + + os.Exit(exitCode) +} diff --git a/scripts/update-locales.sh b/build/update-locales.sh similarity index 100% rename from scripts/update-locales.sh rename to build/update-locales.sh diff --git a/build/vendor.go b/build/vendor.go new file mode 100644 index 000000000..8610af268 --- /dev/null +++ b/build/vendor.go @@ -0,0 +1,18 @@ +// Copyright 2020 The Gitea Authors. All rights reserved. +// Use of this source code is governed by a MIT-style +// license that can be found in the LICENSE file. + +package build + +import ( + // for lint + _ "github.com/BurntSushi/toml" + _ "github.com/mgechev/dots" + _ "github.com/mgechev/revive/formatter" + _ "github.com/mgechev/revive/lint" + _ "github.com/mgechev/revive/rule" + _ "github.com/mitchellh/go-homedir" + + // for embed + _ "github.com/shurcooL/vfsgen" +) diff --git a/go.mod b/go.mod index 54abb2292..2258055b6 100644 --- a/go.mod +++ b/go.mod @@ -16,6 +16,7 @@ require ( gitea.com/macaron/macaron v1.4.0 gitea.com/macaron/session v0.0.0-20191207215012-613cebf0674d gitea.com/macaron/toolbox v0.0.0-20190822013122-05ff0fc766b7 + github.com/BurntSushi/toml v0.3.1 github.com/PuerkitoBio/goquery v1.5.0 github.com/RoaringBitmap/roaring v0.4.21 // indirect github.com/bgentry/speakeasy v0.1.0 // indirect @@ -67,17 +68,20 @@ require ( github.com/lunny/dingtalk_webhook v0.0.0-20171025031554-e3534c89ef96 github.com/mailru/easyjson v0.7.0 // indirect github.com/markbates/goth v1.61.2 - github.com/mattn/go-isatty v0.0.7 + github.com/mattn/go-isatty v0.0.11 github.com/mattn/go-oci8 v0.0.0-20190320171441-14ba190cf52d // indirect github.com/mattn/go-sqlite3 v1.11.0 github.com/mcuadros/go-version v0.0.0-20190308113854-92cdf37c5b75 + github.com/mgechev/dots v0.0.0-20190921121421-c36f7dcfbb81 + github.com/mgechev/revive v1.0.2 github.com/microcosm-cc/bluemonday v0.0.0-20161012083705-f77f16ffc87a + github.com/mitchellh/go-homedir v1.1.0 github.com/msteinert/pam v0.0.0-20151204160544-02ccfbfaf0cc github.com/nfnt/resize v0.0.0-20160724205520-891127d8d1b5 github.com/niklasfasching/go-org v0.1.9 github.com/oliamb/cutter v0.2.2 github.com/olivere/elastic/v7 v7.0.9 - github.com/pkg/errors v0.8.1 + github.com/pkg/errors v0.9.1 github.com/pquerna/otp v0.0.0-20160912161815-54653902c20e github.com/prometheus/client_golang v1.1.0 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 // indirect @@ -107,7 +111,6 @@ require ( golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 golang.org/x/text v0.3.2 - golang.org/x/tools v0.0.0-20191213221258-04c2e8eff935 // indirect gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect gopkg.in/asn1-ber.v1 v1.0.0-20150924051756-4e86f4367175 // indirect gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df diff --git a/go.sum b/go.sum index 552be8a7d..968302b2b 100644 --- a/go.sum +++ b/go.sum @@ -157,6 +157,10 @@ github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 h1:JWuenKqqX8nojt github.com/facebookgo/stack v0.0.0-20160209184415-751773369052/go.mod h1:UbMTZqLaRiH3MsBH8va0n7s1pQYcu3uTb8G4tygF4Zg= github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 h1:E2s37DuLxFhQDg5gKsWoLBOB0n+ZW8s599zru8FJ2/Y= github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870/go.mod h1:5tD+neXqOorC30/tWg0LCSkrqj/AR6gu8yY8/fpw1q0= +github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s= +github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU= +github.com/fatih/structtag v1.2.0 h1:/OdNE99OxoI/PqaW/SuSK9uxxT3f/tcSZgon/ssNSx4= +github.com/fatih/structtag v1.2.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4/aAZl94= github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjrss6TZTdY2VfCqZPbv5k3iBFa2ZQ= github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc= github.com/fortytw2/leaktest v1.3.0 h1:u8491cBMTQ8ft8aeV+adlcytMZylmA5nnwwkRZjI8vw= @@ -184,6 +188,7 @@ github.com/go-git/go-git/v5 v5.0.0/go.mod h1:oYD8y9kWsGINPFJoLdaScGCN6dlKg23blmC github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk= +github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas= github.com/go-openapi/analysis v0.0.0-20180825180245-b006789cd277/go.mod h1:k70tL6pCuVxPJOHXQ+wIac1FUrvNkHolPie/cLEU6hI= github.com/go-openapi/analysis v0.17.0/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik= github.com/go-openapi/analysis v0.18.0/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik= @@ -399,10 +404,15 @@ github.com/mailru/easyjson v0.7.0/go.mod h1:KAzv3t3aY1NaHWoQz1+4F1ccyAH66Jk7yos7 github.com/markbates/going v1.0.0/go.mod h1:I6mnB4BPnEeqo85ynXIx1ZFLLbtiLHNXVgWeFO9OGOA= github.com/markbates/goth v1.61.2 h1:jDowrUH5qw8KGuQdKwFhLzkXkTYCIPfz3LHADJsiPIs= github.com/markbates/goth v1.61.2/go.mod h1:qh2QfwZoWRucQ+DR5KVKC6dUGkNCToWh4vS45GIzFsY= -github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc= -github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= +github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA= +github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE= +github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= +github.com/mattn/go-isatty v0.0.11 h1:FxPOTFNqGkuDUGi3H/qkUbQO4ZiBa2brKq5r0l8TGeM= +github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE= github.com/mattn/go-oci8 v0.0.0-20190320171441-14ba190cf52d h1:m+dSK37rFf2fqppZhg15yI2IwC9BtucBiRwSDm9VL8g= github.com/mattn/go-oci8 v0.0.0-20190320171441-14ba190cf52d/go.mod h1:/M9VLO+lUPmxvoOK2PfWRZ8mTtB4q1Hy9lEGijv9Nr8= +github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54= +github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI= github.com/mattn/go-sqlite3 v1.10.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc= github.com/mattn/go-sqlite3 v1.11.0 h1:LDdKkqtYlom37fkvqs8rMPFKAMe8+SgjbwZ6ex1/A/Q= github.com/mattn/go-sqlite3 v1.11.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc= @@ -410,6 +420,10 @@ github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0j github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0= github.com/mcuadros/go-version v0.0.0-20190308113854-92cdf37c5b75 h1:Pijfgr7ZuvX7QIQiEwLdRVr3RoMG+i0SbBO1Qu+7yVk= github.com/mcuadros/go-version v0.0.0-20190308113854-92cdf37c5b75/go.mod h1:76rfSfYPWj01Z85hUf/ituArm797mNKcvINh1OlsZKo= +github.com/mgechev/dots v0.0.0-20190921121421-c36f7dcfbb81 h1:QASJXOGm2RZ5Ardbc86qNFvby9AqkLDibfChMtAg5QM= +github.com/mgechev/dots v0.0.0-20190921121421-c36f7dcfbb81/go.mod h1:KQ7+USdGKfpPjXk4Ga+5XxQM4Lm4e3gAogrreFAYpOg= +github.com/mgechev/revive v1.0.2 h1:v0NxxQ7fSFz/u1NQydPo6EGdq7va0J1BtsZmae6kzUg= +github.com/mgechev/revive v1.0.2/go.mod h1:rb0dQy1LVAxW9SWy5R3LPUjevzUbUS316U5MFySA2lo= github.com/microcosm-cc/bluemonday v0.0.0-20161012083705-f77f16ffc87a h1:d18LCO3ctH2kugUqt0pEyKKP8L+IYrocaPqGFilhTKk= github.com/microcosm-cc/bluemonday v0.0.0-20161012083705-f77f16ffc87a/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4= github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y= @@ -434,6 +448,8 @@ github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLA github.com/niklasfasching/go-org v0.1.9 h1:Toz8WMIt+qJb52uYEk1YD/muLuOOmRt1CfkV+bKVMkI= github.com/niklasfasching/go-org v0.1.9/go.mod h1:AsLD6X7djzRIz4/RFZu8vwRL0VGjUvGZCCH1Nz0VdrU= github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U= +github.com/olekukonko/tablewriter v0.0.4 h1:vHD/YYe1Wolo78koG299f7V/VAS08c6IpCLn+Ejf/w8= +github.com/olekukonko/tablewriter v0.0.4/go.mod h1:zq6QwlOf5SlnkVbMSr5EoBv3636FWnp+qbPhuoO21uA= github.com/oliamb/cutter v0.2.2 h1:Lfwkya0HHNU1YLnGv2hTkzHfasrSMkgv4Dn+5rmlk3k= github.com/oliamb/cutter v0.2.2/go.mod h1:4BenG2/4GuRBDbVm/OPahDVqbrOemzpPiG5mi1iryBU= github.com/olivere/elastic/v7 v7.0.9 h1:+bTR1xJbfLYD8WnTBt9672mFlKxjfWRJpEQ1y8BMS3g= @@ -457,6 +473,8 @@ github.com/pierrec/lz4 v2.0.5+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I= github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= +github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35/go.mod h1:prYjPmNq4d1NPVmpShWobRqXY3q7Vp+80DqgxxUrUIA= @@ -631,6 +649,7 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE= +golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee h1:WG0RUwxtNT4qqaXX3DPA8zHFNm/D9xaBpxzHt1WcA/E= golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= @@ -690,6 +709,7 @@ golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20190907184412-d223b2b6db03/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20191010194322-b09406accb47 h1:/XfQ9z7ib8eEJX2hdgFTZJ/ntt0swNk5oYBziWeTCvY= golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So= golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= @@ -714,9 +734,10 @@ golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgw golang.org/x/tools v0.0.0-20190617190820-da514acc4774/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190907020128-2ca718005c18/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20191213221258-04c2e8eff935 h1:kJQZhwFzSwJS2BxboKjdZzWczQOZx8VuH7Y8hhuGUtM= -golang.org/x/tools v0.0.0-20191213221258-04c2e8eff935/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= +golang.org/x/tools v0.0.0-20200225230052-807dcd883420 h1:4RJNOV+2rLxMEfr6QIpC7GEv9MjD6ApGXTCLrNF9+eA= +golang.org/x/tools v0.0.0-20200225230052-807dcd883420/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 h1:/atklqdjdhuosWIl6AIbOeHJjicWYPqR9bpxqxYG2pA= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk= google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE= @@ -788,6 +809,7 @@ honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWh honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I= mvdan.cc/xurls/v2 v2.1.0 h1:KaMb5GLhlcSX+e+qhbRJODnUUBvlw01jt4yrjFIHAuA= mvdan.cc/xurls/v2 v2.1.0/go.mod h1:5GrSd9rOnKOpZaji1OZLYL/yeAAtGDlo/cFe+8K5n8E= rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= diff --git a/main.go b/main.go index bf7c59c25..ecf161bf1 100644 --- a/main.go +++ b/main.go @@ -21,8 +21,8 @@ import ( _ "code.gitea.io/gitea/modules/markup/markdown" _ "code.gitea.io/gitea/modules/markup/orgmode" - // for embed - _ "github.com/shurcooL/vfsgen" + // for build + _ "code.gitea.io/gitea/build" "github.com/urfave/cli" ) diff --git a/modules/options/options_bindata.go b/modules/options/options_bindata.go index a5143c1ff..262bd0de3 100644 --- a/modules/options/options_bindata.go +++ b/modules/options/options_bindata.go @@ -6,4 +6,4 @@ package options -//go:generate go run -mod=vendor ../../scripts/generate-bindata.go ../../options options bindata.go +//go:generate go run -mod=vendor ../../build/generate-bindata.go ../../options options bindata.go diff --git a/modules/public/public_bindata.go b/modules/public/public_bindata.go index 68a786c76..05648aea8 100644 --- a/modules/public/public_bindata.go +++ b/modules/public/public_bindata.go @@ -6,4 +6,4 @@ package public -//go:generate go run -mod=vendor ../../scripts/generate-bindata.go ../../public public bindata.go +//go:generate go run -mod=vendor ../../build/generate-bindata.go ../../public public bindata.go diff --git a/modules/templates/templates_bindata.go b/modules/templates/templates_bindata.go index eaf64d945..5a59286c7 100644 --- a/modules/templates/templates_bindata.go +++ b/modules/templates/templates_bindata.go @@ -6,4 +6,4 @@ package templates -//go:generate go run -mod=vendor ../../scripts/generate-bindata.go ../../templates templates bindata.go +//go:generate go run -mod=vendor ../../build/generate-bindata.go ../../templates templates bindata.go diff --git a/vendor/github.com/fatih/color/LICENSE.md b/vendor/github.com/fatih/color/LICENSE.md new file mode 100644 index 000000000..25fdaf639 --- /dev/null +++ b/vendor/github.com/fatih/color/LICENSE.md @@ -0,0 +1,20 @@ +The MIT License (MIT) + +Copyright (c) 2013 Fatih Arslan + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of +the Software, and to permit persons to whom the Software is furnished to do so, +subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS +FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/fatih/color/README.md b/vendor/github.com/fatih/color/README.md new file mode 100644 index 000000000..42d9abc07 --- /dev/null +++ b/vendor/github.com/fatih/color/README.md @@ -0,0 +1,182 @@ +# Archived project. No maintenance. + +This project is not maintained anymore and is archived. Feel free to fork and +make your own changes if needed. For more detail read my blog post: [Taking an indefinite sabbatical from my projects](https://arslan.io/2018/10/09/taking-an-indefinite-sabbatical-from-my-projects/) + +Thanks to everyone for their valuable feedback and contributions. + + +# Color [![GoDoc](https://godoc.org/github.com/fatih/color?status.svg)](https://godoc.org/github.com/fatih/color) + +Color lets you use colorized outputs in terms of [ANSI Escape +Codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors) in Go (Golang). It +has support for Windows too! The API can be used in several ways, pick one that +suits you. + + +![Color](https://i.imgur.com/c1JI0lA.png) + + +## Install + +```bash +go get github.com/fatih/color +``` + +## Examples + +### Standard colors + +```go +// Print with default helper functions +color.Cyan("Prints text in cyan.") + +// A newline will be appended automatically +color.Blue("Prints %s in blue.", "text") + +// These are using the default foreground colors +color.Red("We have red") +color.Magenta("And many others ..") + +``` + +### Mix and reuse colors + +```go +// Create a new color object +c := color.New(color.FgCyan).Add(color.Underline) +c.Println("Prints cyan text with an underline.") + +// Or just add them to New() +d := color.New(color.FgCyan, color.Bold) +d.Printf("This prints bold cyan %s\n", "too!.") + +// Mix up foreground and background colors, create new mixes! +red := color.New(color.FgRed) + +boldRed := red.Add(color.Bold) +boldRed.Println("This will print text in bold red.") + +whiteBackground := red.Add(color.BgWhite) +whiteBackground.Println("Red text with white background.") +``` + +### Use your own output (io.Writer) + +```go +// Use your own io.Writer output +color.New(color.FgBlue).Fprintln(myWriter, "blue color!") + +blue := color.New(color.FgBlue) +blue.Fprint(writer, "This will print text in blue.") +``` + +### Custom print functions (PrintFunc) + +```go +// Create a custom print function for convenience +red := color.New(color.FgRed).PrintfFunc() +red("Warning") +red("Error: %s", err) + +// Mix up multiple attributes +notice := color.New(color.Bold, color.FgGreen).PrintlnFunc() +notice("Don't forget this...") +``` + +### Custom fprint functions (FprintFunc) + +```go +blue := color.New(FgBlue).FprintfFunc() +blue(myWriter, "important notice: %s", stars) + +// Mix up with multiple attributes +success := color.New(color.Bold, color.FgGreen).FprintlnFunc() +success(myWriter, "Don't forget this...") +``` + +### Insert into noncolor strings (SprintFunc) + +```go +// Create SprintXxx functions to mix strings with other non-colorized strings: +yellow := color.New(color.FgYellow).SprintFunc() +red := color.New(color.FgRed).SprintFunc() +fmt.Printf("This is a %s and this is %s.\n", yellow("warning"), red("error")) + +info := color.New(color.FgWhite, color.BgGreen).SprintFunc() +fmt.Printf("This %s rocks!\n", info("package")) + +// Use helper functions +fmt.Println("This", color.RedString("warning"), "should be not neglected.") +fmt.Printf("%v %v\n", color.GreenString("Info:"), "an important message.") + +// Windows supported too! Just don't forget to change the output to color.Output +fmt.Fprintf(color.Output, "Windows support: %s", color.GreenString("PASS")) +``` + +### Plug into existing code + +```go +// Use handy standard colors +color.Set(color.FgYellow) + +fmt.Println("Existing text will now be in yellow") +fmt.Printf("This one %s\n", "too") + +color.Unset() // Don't forget to unset + +// You can mix up parameters +color.Set(color.FgMagenta, color.Bold) +defer color.Unset() // Use it in your function + +fmt.Println("All text will now be bold magenta.") +``` + +### Disable/Enable color + +There might be a case where you want to explicitly disable/enable color output. the +`go-isatty` package will automatically disable color output for non-tty output streams +(for example if the output were piped directly to `less`) + +`Color` has support to disable/enable colors both globally and for single color +definitions. For example suppose you have a CLI app and a `--no-color` bool flag. You +can easily disable the color output with: + +```go + +var flagNoColor = flag.Bool("no-color", false, "Disable color output") + +if *flagNoColor { + color.NoColor = true // disables colorized output +} +``` + +It also has support for single color definitions (local). You can +disable/enable color output on the fly: + +```go +c := color.New(color.FgCyan) +c.Println("Prints cyan text") + +c.DisableColor() +c.Println("This is printed without any color") + +c.EnableColor() +c.Println("This prints again cyan...") +``` + +## Todo + +* Save/Return previous values +* Evaluate fmt.Formatter interface + + +## Credits + + * [Fatih Arslan](https://github.com/fatih) + * Windows support via @mattn: [colorable](https://github.com/mattn/go-colorable) + +## License + +The MIT License (MIT) - see [`LICENSE.md`](https://github.com/fatih/color/blob/master/LICENSE.md) for more details + diff --git a/vendor/github.com/fatih/color/color.go b/vendor/github.com/fatih/color/color.go new file mode 100644 index 000000000..91c8e9f06 --- /dev/null +++ b/vendor/github.com/fatih/color/color.go @@ -0,0 +1,603 @@ +package color + +import ( + "fmt" + "io" + "os" + "strconv" + "strings" + "sync" + + "github.com/mattn/go-colorable" + "github.com/mattn/go-isatty" +) + +var ( + // NoColor defines if the output is colorized or not. It's dynamically set to + // false or true based on the stdout's file descriptor referring to a terminal + // or not. This is a global option and affects all colors. For more control + // over each color block use the methods DisableColor() individually. + NoColor = os.Getenv("TERM") == "dumb" || + (!isatty.IsTerminal(os.Stdout.Fd()) && !isatty.IsCygwinTerminal(os.Stdout.Fd())) + + // Output defines the standard output of the print functions. By default + // os.Stdout is used. + Output = colorable.NewColorableStdout() + + // Error defines a color supporting writer for os.Stderr. + Error = colorable.NewColorableStderr() + + // colorsCache is used to reduce the count of created Color objects and + // allows to reuse already created objects with required Attribute. + colorsCache = make(map[Attribute]*Color) + colorsCacheMu sync.Mutex // protects colorsCache +) + +// Color defines a custom color object which is defined by SGR parameters. +type Color struct { + params []Attribute + noColor *bool +} + +// Attribute defines a single SGR Code +type Attribute int + +const escape = "\x1b" + +// Base attributes +const ( + Reset Attribute = iota + Bold + Faint + Italic + Underline + BlinkSlow + BlinkRapid + ReverseVideo + Concealed + CrossedOut +) + +// Foreground text colors +const ( + FgBlack Attribute = iota + 30 + FgRed + FgGreen + FgYellow + FgBlue + FgMagenta + FgCyan + FgWhite +) + +// Foreground Hi-Intensity text colors +const ( + FgHiBlack Attribute = iota + 90 + FgHiRed + FgHiGreen + FgHiYellow + FgHiBlue + FgHiMagenta + FgHiCyan + FgHiWhite +) + +// Background text colors +const ( + BgBlack Attribute = iota + 40 + BgRed + BgGreen + BgYellow + BgBlue + BgMagenta + BgCyan + BgWhite +) + +// Background Hi-Intensity text colors +const ( + BgHiBlack Attribute = iota + 100 + BgHiRed + BgHiGreen + BgHiYellow + BgHiBlue + BgHiMagenta + BgHiCyan + BgHiWhite +) + +// New returns a newly created color object. +func New(value ...Attribute) *Color { + c := &Color{params: make([]Attribute, 0)} + c.Add(value...) + return c +} + +// Set sets the given parameters immediately. It will change the color of +// output with the given SGR parameters until color.Unset() is called. +func Set(p ...Attribute) *Color { + c := New(p...) + c.Set() + return c +} + +// Unset resets all escape attributes and clears the output. Usually should +// be called after Set(). +func Unset() { + if NoColor { + return + } + + fmt.Fprintf(Output, "%s[%dm", escape, Reset) +} + +// Set sets the SGR sequence. +func (c *Color) Set() *Color { + if c.isNoColorSet() { + return c + } + + fmt.Fprintf(Output, c.format()) + return c +} + +func (c *Color) unset() { + if c.isNoColorSet() { + return + } + + Unset() +} + +func (c *Color) setWriter(w io.Writer) *Color { + if c.isNoColorSet() { + return c + } + + fmt.Fprintf(w, c.format()) + return c +} + +func (c *Color) unsetWriter(w io.Writer) { + if c.isNoColorSet() { + return + } + + if NoColor { + return + } + + fmt.Fprintf(w, "%s[%dm", escape, Reset) +} + +// Add is used to chain SGR parameters. Use as many as parameters to combine +// and create custom color objects. Example: Add(color.FgRed, color.Underline). +func (c *Color) Add(value ...Attribute) *Color { + c.params = append(c.params, value...) + return c +} + +func (c *Color) prepend(value Attribute) { + c.params = append(c.params, 0) + copy(c.params[1:], c.params[0:]) + c.params[0] = value +} + +// Fprint formats using the default formats for its operands and writes to w. +// Spaces are added between operands when neither is a string. +// It returns the number of bytes written and any write error encountered. +// On Windows, users should wrap w with colorable.NewColorable() if w is of +// type *os.File. +func (c *Color) Fprint(w io.Writer, a ...interface{}) (n int, err error) { + c.setWriter(w) + defer c.unsetWriter(w) + + return fmt.Fprint(w, a...) +} + +// Print formats using the default formats for its operands and writes to +// standard output. Spaces are added between operands when neither is a +// string. It returns the number of bytes written and any write error +// encountered. This is the standard fmt.Print() method wrapped with the given +// color. +func (c *Color) Print(a ...interface{}) (n int, err error) { + c.Set() + defer c.unset() + + return fmt.Fprint(Output, a...) +} + +// Fprintf formats according to a format specifier and writes to w. +// It returns the number of bytes written and any write error encountered. +// On Windows, users should wrap w with colorable.NewColorable() if w is of +// type *os.File. +func (c *Color) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) { + c.setWriter(w) + defer c.unsetWriter(w) + + return fmt.Fprintf(w, format, a...) +} + +// Printf formats according to a format specifier and writes to standard output. +// It returns the number of bytes written and any write error encountered. +// This is the standard fmt.Printf() method wrapped with the given color. +func (c *Color) Printf(format string, a ...interface{}) (n int, err error) { + c.Set() + defer c.unset() + + return fmt.Fprintf(Output, format, a...) +} + +// Fprintln formats using the default formats for its operands and writes to w. +// Spaces are always added between operands and a newline is appended. +// On Windows, users should wrap w with colorable.NewColorable() if w is of +// type *os.File. +func (c *Color) Fprintln(w io.Writer, a ...interface{}) (n int, err error) { + c.setWriter(w) + defer c.unsetWriter(w) + + return fmt.Fprintln(w, a...) +} + +// Println formats using the default formats for its operands and writes to +// standard output. Spaces are always added between operands and a newline is +// appended. It returns the number of bytes written and any write error +// encountered. This is the standard fmt.Print() method wrapped with the given +// color. +func (c *Color) Println(a ...interface{}) (n int, err error) { + c.Set() + defer c.unset() + + return fmt.Fprintln(Output, a...) +} + +// Sprint is just like Print, but returns a string instead of printing it. +func (c *Color) Sprint(a ...interface{}) string { + return c.wrap(fmt.Sprint(a...)) +} + +// Sprintln is just like Println, but returns a string instead of printing it. +func (c *Color) Sprintln(a ...interface{}) string { + return c.wrap(fmt.Sprintln(a...)) +} + +// Sprintf is just like Printf, but returns a string instead of printing it. +func (c *Color) Sprintf(format string, a ...interface{}) string { + return c.wrap(fmt.Sprintf(format, a...)) +} + +// FprintFunc returns a new function that prints the passed arguments as +// colorized with color.Fprint(). +func (c *Color) FprintFunc() func(w io.Writer, a ...interface{}) { + return func(w io.Writer, a ...interface{}) { + c.Fprint(w, a...) + } +} + +// PrintFunc returns a new function that prints the passed arguments as +// colorized with color.Print(). +func (c *Color) PrintFunc() func(a ...interface{}) { + return func(a ...interface{}) { + c.Print(a...) + } +} + +// FprintfFunc returns a new function that prints the passed arguments as +// colorized with color.Fprintf(). +func (c *Color) FprintfFunc() func(w io.Writer, format string, a ...interface{}) { + return func(w io.Writer, format string, a ...interface{}) { + c.Fprintf(w, format, a...) + } +} + +// PrintfFunc returns a new function that prints the passed arguments as +// colorized with color.Printf(). +func (c *Color) PrintfFunc() func(format string, a ...interface{}) { + return func(format string, a ...interface{}) { + c.Printf(format, a...) + } +} + +// FprintlnFunc returns a new function that prints the passed arguments as +// colorized with color.Fprintln(). +func (c *Color) FprintlnFunc() func(w io.Writer, a ...interface{}) { + return func(w io.Writer, a ...interface{}) { + c.Fprintln(w, a...) + } +} + +// PrintlnFunc returns a new function that prints the passed arguments as +// colorized with color.Println(). +func (c *Color) PrintlnFunc() func(a ...interface{}) { + return func(a ...interface{}) { + c.Println(a...) + } +} + +// SprintFunc returns a new function that returns colorized strings for the +// given arguments with fmt.Sprint(). Useful to put into or mix into other +// string. Windows users should use this in conjunction with color.Output, example: +// +// put := New(FgYellow).SprintFunc() +// fmt.Fprintf(color.Output, "This is a %s", put("warning")) +func (c *Color) SprintFunc() func(a ...interface{}) string { + return func(a ...interface{}) string { + return c.wrap(fmt.Sprint(a...)) + } +} + +// SprintfFunc returns a new function that returns colorized strings for the +// given arguments with fmt.Sprintf(). Useful to put into or mix into other +// string. Windows users should use this in conjunction with color.Output. +func (c *Color) SprintfFunc() func(format string, a ...interface{}) string { + return func(format string, a ...interface{}) string { + return c.wrap(fmt.Sprintf(format, a...)) + } +} + +// SprintlnFunc returns a new function that returns colorized strings for the +// given arguments with fmt.Sprintln(). Useful to put into or mix into other +// string. Windows users should use this in conjunction with color.Output. +func (c *Color) SprintlnFunc() func(a ...interface{}) string { + return func(a ...interface{}) string { + return c.wrap(fmt.Sprintln(a...)) + } +} + +// sequence returns a formatted SGR sequence to be plugged into a "\x1b[...m" +// an example output might be: "1;36" -> bold cyan +func (c *Color) sequence() string { + format := make([]string, len(c.params)) + for i, v := range c.params { + format[i] = strconv.Itoa(int(v)) + } + + return strings.Join(format, ";") +} + +// wrap wraps the s string with the colors attributes. The string is ready to +// be printed. +func (c *Color) wrap(s string) string { + if c.isNoColorSet() { + return s + } + + return c.format() + s + c.unformat() +} + +func (c *Color) format() string { + return fmt.Sprintf("%s[%sm", escape, c.sequence()) +} + +func (c *Color) unformat() string { + return fmt.Sprintf("%s[%dm", escape, Reset) +} + +// DisableColor disables the color output. Useful to not change any existing +// code and still being able to output. Can be used for flags like +// "--no-color". To enable back use EnableColor() method. +func (c *Color) DisableColor() { + c.noColor = boolPtr(true) +} + +// EnableColor enables the color output. Use it in conjunction with +// DisableColor(). Otherwise this method has no side effects. +func (c *Color) EnableColor() { + c.noColor = boolPtr(false) +} + +func (c *Color) isNoColorSet() bool { + // check first if we have user setted action + if c.noColor != nil { + return *c.noColor + } + + // if not return the global option, which is disabled by default + return NoColor +} + +// Equals returns a boolean value indicating whether two colors are equal. +func (c *Color) Equals(c2 *Color) bool { + if len(c.params) != len(c2.params) { + return false + } + + for _, attr := range c.params { + if !c2.attrExists(attr) { + return false + } + } + + return true +} + +func (c *Color) attrExists(a Attribute) bool { + for _, attr := range c.params { + if attr == a { + return true + } + } + + return false +} + +func boolPtr(v bool) *bool { + return &v +} + +func getCachedColor(p Attribute) *Color { + colorsCacheMu.Lock() + defer colorsCacheMu.Unlock() + + c, ok := colorsCache[p] + if !ok { + c = New(p) + colorsCache[p] = c + } + + return c +} + +func colorPrint(format string, p Attribute, a ...interface{}) { + c := getCachedColor(p) + + if !strings.HasSuffix(format, "\n") { + format += "\n" + } + + if len(a) == 0 { + c.Print(format) + } else { + c.Printf(format, a...) + } +} + +func colorString(format string, p Attribute, a ...interface{}) string { + c := getCachedColor(p) + + if len(a) == 0 { + return c.SprintFunc()(format) + } + + return c.SprintfFunc()(format, a...) +} + +// Black is a convenient helper function to print with black foreground. A +// newline is appended to format by default. +func Black(format string, a ...interface{}) { colorPrint(format, FgBlack, a...) } + +// Red is a convenient helper function to print with red foreground. A +// newline is appended to format by default. +func Red(format string, a ...interface{}) { colorPrint(format, FgRed, a...) } + +// Green is a convenient helper function to print with green foreground. A +// newline is appended to format by default. +func Green(format string, a ...interface{}) { colorPrint(format, FgGreen, a...) } + +// Yellow is a convenient helper function to print with yellow foreground. +// A newline is appended to format by default. +func Yellow(format string, a ...interface{}) { colorPrint(format, FgYellow, a...) } + +// Blue is a convenient helper function to print with blue foreground. A +// newline is appended to format by default. +func Blue(format string, a ...interface{}) { colorPrint(format, FgBlue, a...) } + +// Magenta is a convenient helper function to print with magenta foreground. +// A newline is appended to format by default. +func Magenta(format string, a ...interface{}) { colorPrint(format, FgMagenta, a...) } + +// Cyan is a convenient helper function to print with cyan foreground. A +// newline is appended to format by default. +func Cyan(format string, a ...interface{}) { colorPrint(format, FgCyan, a...) } + +// White is a convenient helper function to print with white foreground. A +// newline is appended to format by default. +func White(format string, a ...interface{}) { colorPrint(format, FgWhite, a...) } + +// BlackString is a convenient helper function to return a string with black +// foreground. +func BlackString(format string, a ...interface{}) string { return colorString(format, FgBlack, a...) } + +// RedString is a convenient helper function to return a string with red +// foreground. +func RedString(format string, a ...interface{}) string { return colorString(format, FgRed, a...) } + +// GreenString is a convenient helper function to return a string with green +// foreground. +func GreenString(format string, a ...interface{}) string { return colorString(format, FgGreen, a...) } + +// YellowString is a convenient helper function to return a string with yellow +// foreground. +func YellowString(format string, a ...interface{}) string { return colorString(format, FgYellow, a...) } + +// BlueString is a convenient helper function to return a string with blue +// foreground. +func BlueString(format string, a ...interface{}) string { return colorString(format, FgBlue, a...) } + +// MagentaString is a convenient helper function to return a string with magenta +// foreground. +func MagentaString(format string, a ...interface{}) string { + return colorString(format, FgMagenta, a...) +} + +// CyanString is a convenient helper function to return a string with cyan +// foreground. +func CyanString(format string, a ...interface{}) string { return colorString(format, FgCyan, a...) } + +// WhiteString is a convenient helper function to return a string with white +// foreground. +func WhiteString(format string, a ...interface{}) string { return colorString(format, FgWhite, a...) } + +// HiBlack is a convenient helper function to print with hi-intensity black foreground. A +// newline is appended to format by default. +func HiBlack(format string, a ...interface{}) { colorPrint(format, FgHiBlack, a...) } + +// HiRed is a convenient helper function to print with hi-intensity red foreground. A +// newline is appended to format by default. +func HiRed(format string, a ...interface{}) { colorPrint(format, FgHiRed, a...) } + +// HiGreen is a convenient helper function to print with hi-intensity green foreground. A +// newline is appended to format by default. +func HiGreen(format string, a ...interface{}) { colorPrint(format, FgHiGreen, a...) } + +// HiYellow is a convenient helper function to print with hi-intensity yellow foreground. +// A newline is appended to format by default. +func HiYellow(format string, a ...interface{}) { colorPrint(format, FgHiYellow, a...) } + +// HiBlue is a convenient helper function to print with hi-intensity blue foreground. A +// newline is appended to format by default. +func HiBlue(format string, a ...interface{}) { colorPrint(format, FgHiBlue, a...) } + +// HiMagenta is a convenient helper function to print with hi-intensity magenta foreground. +// A newline is appended to format by default. +func HiMagenta(format string, a ...interface{}) { colorPrint(format, FgHiMagenta, a...) } + +// HiCyan is a convenient helper function to print with hi-intensity cyan foreground. A +// newline is appended to format by default. +func HiCyan(format string, a ...interface{}) { colorPrint(format, FgHiCyan, a...) } + +// HiWhite is a convenient helper function to print with hi-intensity white foreground. A +// newline is appended to format by default. +func HiWhite(format string, a ...interface{}) { colorPrint(format, FgHiWhite, a...) } + +// HiBlackString is a convenient helper function to return a string with hi-intensity black +// foreground. +func HiBlackString(format string, a ...interface{}) string { + return colorString(format, FgHiBlack, a...) +} + +// HiRedString is a convenient helper function to return a string with hi-intensity red +// foreground. +func HiRedString(format string, a ...interface{}) string { return colorString(format, FgHiRed, a...) } + +// HiGreenString is a convenient helper function to return a string with hi-intensity green +// foreground. +func HiGreenString(format string, a ...interface{}) string { + return colorString(format, FgHiGreen, a...) +} + +// HiYellowString is a convenient helper function to return a string with hi-intensity yellow +// foreground. +func HiYellowString(format string, a ...interface{}) string { + return colorString(format, FgHiYellow, a...) +} + +// HiBlueString is a convenient helper function to return a string with hi-intensity blue +// foreground. +func HiBlueString(format string, a ...interface{}) string { return colorString(format, FgHiBlue, a...) } + +// HiMagentaString is a convenient helper function to return a string with hi-intensity magenta +// foreground. +func HiMagentaString(format string, a ...interface{}) string { + return colorString(format, FgHiMagenta, a...) +} + +// HiCyanString is a convenient helper function to return a string with hi-intensity cyan +// foreground. +func HiCyanString(format string, a ...interface{}) string { return colorString(format, FgHiCyan, a...) } + +// HiWhiteString is a convenient helper function to return a string with hi-intensity white +// foreground. +func HiWhiteString(format string, a ...interface{}) string { + return colorString(format, FgHiWhite, a...) +} diff --git a/vendor/github.com/fatih/color/doc.go b/vendor/github.com/fatih/color/doc.go new file mode 100644 index 000000000..cf1e96500 --- /dev/null +++ b/vendor/github.com/fatih/color/doc.go @@ -0,0 +1,133 @@ +/* +Package color is an ANSI color package to output colorized or SGR defined +output to the standard output. The API can be used in several way, pick one +that suits you. + +Use simple and default helper functions with predefined foreground colors: + + color.Cyan("Prints text in cyan.") + + // a newline will be appended automatically + color.Blue("Prints %s in blue.", "text") + + // More default foreground colors.. + color.Red("We have red") + color.Yellow("Yellow color too!") + color.Magenta("And many others ..") + + // Hi-intensity colors + color.HiGreen("Bright green color.") + color.HiBlack("Bright black means gray..") + color.HiWhite("Shiny white color!") + +However there are times where custom color mixes are required. Below are some +examples to create custom color objects and use the print functions of each +separate color object. + + // Create a new color object + c := color.New(color.FgCyan).Add(color.Underline) + c.Println("Prints cyan text with an underline.") + + // Or just add them to New() + d := color.New(color.FgCyan, color.Bold) + d.Printf("This prints bold cyan %s\n", "too!.") + + + // Mix up foreground and background colors, create new mixes! + red := color.New(color.FgRed) + + boldRed := red.Add(color.Bold) + boldRed.Println("This will print text in bold red.") + + whiteBackground := red.Add(color.BgWhite) + whiteBackground.Println("Red text with White background.") + + // Use your own io.Writer output + color.New(color.FgBlue).Fprintln(myWriter, "blue color!") + + blue := color.New(color.FgBlue) + blue.Fprint(myWriter, "This will print text in blue.") + +You can create PrintXxx functions to simplify even more: + + // Create a custom print function for convenient + red := color.New(color.FgRed).PrintfFunc() + red("warning") + red("error: %s", err) + + // Mix up multiple attributes + notice := color.New(color.Bold, color.FgGreen).PrintlnFunc() + notice("don't forget this...") + +You can also FprintXxx functions to pass your own io.Writer: + + blue := color.New(FgBlue).FprintfFunc() + blue(myWriter, "important notice: %s", stars) + + // Mix up with multiple attributes + success := color.New(color.Bold, color.FgGreen).FprintlnFunc() + success(myWriter, don't forget this...") + + +Or create SprintXxx functions to mix strings with other non-colorized strings: + + yellow := New(FgYellow).SprintFunc() + red := New(FgRed).SprintFunc() + + fmt.Printf("this is a %s and this is %s.\n", yellow("warning"), red("error")) + + info := New(FgWhite, BgGreen).SprintFunc() + fmt.Printf("this %s rocks!\n", info("package")) + +Windows support is enabled by default. All Print functions work as intended. +However only for color.SprintXXX functions, user should use fmt.FprintXXX and +set the output to color.Output: + + fmt.Fprintf(color.Output, "Windows support: %s", color.GreenString("PASS")) + + info := New(FgWhite, BgGreen).SprintFunc() + fmt.Fprintf(color.Output, "this %s rocks!\n", info("package")) + +Using with existing code is possible. Just use the Set() method to set the +standard output to the given parameters. That way a rewrite of an existing +code is not required. + + // Use handy standard colors. + color.Set(color.FgYellow) + + fmt.Println("Existing text will be now in Yellow") + fmt.Printf("This one %s\n", "too") + + color.Unset() // don't forget to unset + + // You can mix up parameters + color.Set(color.FgMagenta, color.Bold) + defer color.Unset() // use it in your function + + fmt.Println("All text will be now bold magenta.") + +There might be a case where you want to disable color output (for example to +pipe the standard output of your app to somewhere else). `Color` has support to +disable colors both globally and for single color definition. For example +suppose you have a CLI app and a `--no-color` bool flag. You can easily disable +the color output with: + + var flagNoColor = flag.Bool("no-color", false, "Disable color output") + + if *flagNoColor { + color.NoColor = true // disables colorized output + } + +It also has support for single color definitions (local). You can +disable/enable color output on the fly: + + c := color.New(color.FgCyan) + c.Println("Prints cyan text") + + c.DisableColor() + c.Println("This is printed without any color") + + c.EnableColor() + c.Println("This prints again cyan...") +*/ +package color diff --git a/vendor/github.com/fatih/color/go.mod b/vendor/github.com/fatih/color/go.mod new file mode 100644 index 000000000..bc0df7545 --- /dev/null +++ b/vendor/github.com/fatih/color/go.mod @@ -0,0 +1,8 @@ +module github.com/fatih/color + +go 1.13 + +require ( + github.com/mattn/go-colorable v0.1.4 + github.com/mattn/go-isatty v0.0.11 +) diff --git a/vendor/github.com/fatih/color/go.sum b/vendor/github.com/fatih/color/go.sum new file mode 100644 index 000000000..44328a8db --- /dev/null +++ b/vendor/github.com/fatih/color/go.sum @@ -0,0 +1,8 @@ +github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA= +github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE= +github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= +github.com/mattn/go-isatty v0.0.11 h1:FxPOTFNqGkuDUGi3H/qkUbQO4ZiBa2brKq5r0l8TGeM= +github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE= +golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4= +golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= diff --git a/vendor/github.com/fatih/structtag/LICENSE b/vendor/github.com/fatih/structtag/LICENSE new file mode 100644 index 000000000..4fd15f9f8 --- /dev/null +++ b/vendor/github.com/fatih/structtag/LICENSE @@ -0,0 +1,60 @@ +Copyright (c) 2017, Fatih Arslan +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +* Neither the name of structtag nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +This software includes some portions from Go. Go is used under the terms of the +BSD like license. + +Copyright (c) 2012 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +The Go gopher was designed by Renee French. http://reneefrench.blogspot.com/ The design is licensed under the Creative Commons 3.0 Attributions license. Read this article for more details: https://blog.golang.org/gopher diff --git a/vendor/github.com/fatih/structtag/README.md b/vendor/github.com/fatih/structtag/README.md new file mode 100644 index 000000000..c4e8b1e86 --- /dev/null +++ b/vendor/github.com/fatih/structtag/README.md @@ -0,0 +1,73 @@ +# structtag [![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/fatih/structtag) + +structtag provides an easy way of parsing and manipulating struct tag fields. +Please vendor the library as it might change in future versions. + +# Install + +```bash +go get github.com/fatih/structtag +``` + +# Example + +```go +package main + +import ( + "fmt" + "reflect" + "sort" + + "github.com/fatih/structtag" +) + +func main() { + type t struct { + t string `json:"foo,omitempty,string" xml:"foo"` + } + + // get field tag + tag := reflect.TypeOf(t{}).Field(0).Tag + + // ... and start using structtag by parsing the tag + tags, err := structtag.Parse(string(tag)) + if err != nil { + panic(err) + } + + // iterate over all tags + for _, t := range tags.Tags() { + fmt.Printf("tag: %+v\n", t) + } + + // get a single tag + jsonTag, err := tags.Get("json") + if err != nil { + panic(err) + } + fmt.Println(jsonTag) // Output: json:"foo,omitempty,string" + fmt.Println(jsonTag.Key) // Output: json + fmt.Println(jsonTag.Name) // Output: foo + fmt.Println(jsonTag.Options) // Output: [omitempty string] + + // change existing tag + jsonTag.Name = "foo_bar" + jsonTag.Options = nil + tags.Set(jsonTag) + + // add new tag + tags.Set(&structtag.Tag{ + Key: "hcl", + Name: "foo", + Options: []string{"squash"}, + }) + + // print the tags + fmt.Println(tags) // Output: json:"foo_bar" xml:"foo" hcl:"foo,squash" + + // sort tags according to keys + sort.Sort(tags) + fmt.Println(tags) // Output: hcl:"foo,squash" json:"foo_bar" xml:"foo" +} +``` diff --git a/vendor/github.com/fatih/structtag/go.mod b/vendor/github.com/fatih/structtag/go.mod new file mode 100644 index 000000000..660d6a1f1 --- /dev/null +++ b/vendor/github.com/fatih/structtag/go.mod @@ -0,0 +1,3 @@ +module github.com/fatih/structtag + +go 1.12 diff --git a/vendor/github.com/fatih/structtag/tags.go b/vendor/github.com/fatih/structtag/tags.go new file mode 100644 index 000000000..c168fb21c --- /dev/null +++ b/vendor/github.com/fatih/structtag/tags.go @@ -0,0 +1,315 @@ +package structtag + +import ( + "bytes" + "errors" + "fmt" + "strconv" + "strings" +) + +var ( + errTagSyntax = errors.New("bad syntax for struct tag pair") + errTagKeySyntax = errors.New("bad syntax for struct tag key") + errTagValueSyntax = errors.New("bad syntax for struct tag value") + + errKeyNotSet = errors.New("tag key does not exist") + errTagNotExist = errors.New("tag does not exist") + errTagKeyMismatch = errors.New("mismatch between key and tag.key") +) + +// Tags represent a set of tags from a single struct field +type Tags struct { + tags []*Tag +} + +// Tag defines a single struct's string literal tag +type Tag struct { + // Key is the tag key, such as json, xml, etc.. + // i.e: `json:"foo,omitempty". Here key is: "json" + Key string + + // Name is a part of the value + // i.e: `json:"foo,omitempty". Here name is: "foo" + Name string + + // Options is a part of the value. It contains a slice of tag options i.e: + // `json:"foo,omitempty". Here options is: ["omitempty"] + Options []string +} + +// Parse parses a single struct field tag and returns the set of tags. +func Parse(tag string) (*Tags, error) { + var tags []*Tag + + hasTag := tag != "" + + // NOTE(arslan) following code is from reflect and vet package with some + // modifications to collect all necessary information and extend it with + // usable methods + for tag != "" { + // Skip leading space. + i := 0 + for i < len(tag) && tag[i] == ' ' { + i++ + } + tag = tag[i:] + if tag == "" { + break + } + + // Scan to colon. A space, a quote or a control character is a syntax + // error. Strictly speaking, control chars include the range [0x7f, + // 0x9f], not just [0x00, 0x1f], but in practice, we ignore the + // multi-byte control characters as it is simpler to inspect the tag's + // bytes than the tag's runes. + i = 0 + for i < len(tag) && tag[i] > ' ' && tag[i] != ':' && tag[i] != '"' && tag[i] != 0x7f { + i++ + } + + if i == 0 { + return nil, errTagKeySyntax + } + if i+1 >= len(tag) || tag[i] != ':' { + return nil, errTagSyntax + } + if tag[i+1] != '"' { + return nil, errTagValueSyntax + } + + key := string(tag[:i]) + tag = tag[i+1:] + + // Scan quoted string to find value. + i = 1 + for i < len(tag) && tag[i] != '"' { + if tag[i] == '\\' { + i++ + } + i++ + } + if i >= len(tag) { + return nil, errTagValueSyntax + } + + qvalue := string(tag[:i+1]) + tag = tag[i+1:] + + value, err := strconv.Unquote(qvalue) + if err != nil { + return nil, errTagValueSyntax + } + + res := strings.Split(value, ",") + name := res[0] + options := res[1:] + if len(options) == 0 { + options = nil + } + + tags = append(tags, &Tag{ + Key: key, + Name: name, + Options: options, + }) + } + + if hasTag && len(tags) == 0 { + return nil, nil + } + + return &Tags{ + tags: tags, + }, nil +} + +// Get returns the tag associated with the given key. If the key is present +// in the tag the value (which may be empty) is returned. Otherwise the +// returned value will be the empty string. The ok return value reports whether +// the tag exists or not (which the return value is nil). +func (t *Tags) Get(key string) (*Tag, error) { + for _, tag := range t.tags { + if tag.Key == key { + return tag, nil + } + } + + return nil, errTagNotExist +} + +// Set sets the given tag. If the tag key already exists it'll override it +func (t *Tags) Set(tag *Tag) error { + if tag.Key == "" { + return errKeyNotSet + } + + added := false + for i, tg := range t.tags { + if tg.Key == tag.Key { + added = true + t.tags[i] = tag + } + } + + if !added { + // this means this is a new tag, add it + t.tags = append(t.tags, tag) + } + + return nil +} + +// AddOptions adds the given option for the given key. If the option already +// exists it doesn't add it again. +func (t *Tags) AddOptions(key string, options ...string) { + for i, tag := range t.tags { + if tag.Key != key { + continue + } + + for _, opt := range options { + if !tag.HasOption(opt) { + tag.Options = append(tag.Options, opt) + } + } + + t.tags[i] = tag + } +} + +// DeleteOptions deletes the given options for the given key +func (t *Tags) DeleteOptions(key string, options ...string) { + hasOption := func(option string) bool { + for _, opt := range options { + if opt == option { + return true + } + } + return false + } + + for i, tag := range t.tags { + if tag.Key != key { + continue + } + + var updated []string + for _, opt := range tag.Options { + if !hasOption(opt) { + updated = append(updated, opt) + } + } + + tag.Options = updated + t.tags[i] = tag + } +} + +// Delete deletes the tag for the given keys +func (t *Tags) Delete(keys ...string) { + hasKey := func(key string) bool { + for _, k := range keys { + if k == key { + return true + } + } + return false + } + + var updated []*Tag + for _, tag := range t.tags { + if !hasKey(tag.Key) { + updated = append(updated, tag) + } + } + + t.tags = updated +} + +// Tags returns a slice of tags. The order is the original tag order unless it +// was changed. +func (t *Tags) Tags() []*Tag { + return t.tags +} + +// Tags returns a slice of tags. The order is the original tag order unless it +// was changed. +func (t *Tags) Keys() []string { + var keys []string + for _, tag := range t.tags { + keys = append(keys, tag.Key) + } + return keys +} + +// String reassembles the tags into a valid literal tag field representation +func (t *Tags) String() string { + tags := t.Tags() + if len(tags) == 0 { + return "" + } + + var buf bytes.Buffer + for i, tag := range t.Tags() { + buf.WriteString(tag.String()) + if i != len(tags)-1 { + buf.WriteString(" ") + } + } + return buf.String() +} + +// HasOption returns true if the given option is available in options +func (t *Tag) HasOption(opt string) bool { + for _, tagOpt := range t.Options { + if tagOpt == opt { + return true + } + } + + return false +} + +// Value returns the raw value of the tag, i.e. if the tag is +// `json:"foo,omitempty", the Value is "foo,omitempty" +func (t *Tag) Value() string { + options := strings.Join(t.Options, ",") + if options != "" { + return fmt.Sprintf(`%s,%s`, t.Name, options) + } + return t.Name +} + +// String reassembles the tag into a valid tag field representation +func (t *Tag) String() string { + return fmt.Sprintf(`%s:%q`, t.Key, t.Value()) +} + +// GoString implements the fmt.GoStringer interface +func (t *Tag) GoString() string { + template := `{ + Key: '%s', + Name: '%s', + Option: '%s', + }` + + if t.Options == nil { + return fmt.Sprintf(template, t.Key, t.Name, "nil") + } + + options := strings.Join(t.Options, ",") + return fmt.Sprintf(template, t.Key, t.Name, options) +} + +func (t *Tags) Len() int { + return len(t.tags) +} + +func (t *Tags) Less(i int, j int) bool { + return t.tags[i].Key < t.tags[j].Key +} + +func (t *Tags) Swap(i int, j int) { + t.tags[i], t.tags[j] = t.tags[j], t.tags[i] +} diff --git a/vendor/github.com/mattn/go-colorable/.travis.yml b/vendor/github.com/mattn/go-colorable/.travis.yml new file mode 100644 index 000000000..98db8f060 --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/.travis.yml @@ -0,0 +1,9 @@ +language: go +go: + - tip + +before_install: + - go get github.com/mattn/goveralls + - go get golang.org/x/tools/cmd/cover +script: + - $HOME/gopath/bin/goveralls -repotoken xnXqRGwgW3SXIguzxf90ZSK1GPYZPaGrw diff --git a/vendor/github.com/mattn/go-colorable/LICENSE b/vendor/github.com/mattn/go-colorable/LICENSE new file mode 100644 index 000000000..91b5cef30 --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Yasuhiro Matsumoto + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/mattn/go-colorable/README.md b/vendor/github.com/mattn/go-colorable/README.md new file mode 100644 index 000000000..56729a92c --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/README.md @@ -0,0 +1,48 @@ +# go-colorable + +[![Godoc Reference](https://godoc.org/github.com/mattn/go-colorable?status.svg)](http://godoc.org/github.com/mattn/go-colorable) +[![Build Status](https://travis-ci.org/mattn/go-colorable.svg?branch=master)](https://travis-ci.org/mattn/go-colorable) +[![Coverage Status](https://coveralls.io/repos/github/mattn/go-colorable/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-colorable?branch=master) +[![Go Report Card](https://goreportcard.com/badge/mattn/go-colorable)](https://goreportcard.com/report/mattn/go-colorable) + +Colorable writer for windows. + +For example, most of logger packages doesn't show colors on windows. (I know we can do it with ansicon. But I don't want.) +This package is possible to handle escape sequence for ansi color on windows. + +## Too Bad! + +![](https://raw.githubusercontent.com/mattn/go-colorable/gh-pages/bad.png) + + +## So Good! + +![](https://raw.githubusercontent.com/mattn/go-colorable/gh-pages/good.png) + +## Usage + +```go +logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true}) +logrus.SetOutput(colorable.NewColorableStdout()) + +logrus.Info("succeeded") +logrus.Warn("not correct") +logrus.Error("something error") +logrus.Fatal("panic") +``` + +You can compile above code on non-windows OSs. + +## Installation + +``` +$ go get github.com/mattn/go-colorable +``` + +# License + +MIT + +# Author + +Yasuhiro Matsumoto (a.k.a mattn) diff --git a/vendor/github.com/mattn/go-colorable/colorable_appengine.go b/vendor/github.com/mattn/go-colorable/colorable_appengine.go new file mode 100644 index 000000000..0b0aef837 --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/colorable_appengine.go @@ -0,0 +1,29 @@ +// +build appengine + +package colorable + +import ( + "io" + "os" + + _ "github.com/mattn/go-isatty" +) + +// NewColorable returns new instance of Writer which handles escape sequence. +func NewColorable(file *os.File) io.Writer { + if file == nil { + panic("nil passed instead of *os.File to NewColorable()") + } + + return file +} + +// NewColorableStdout returns new instance of Writer which handles escape sequence for stdout. +func NewColorableStdout() io.Writer { + return os.Stdout +} + +// NewColorableStderr returns new instance of Writer which handles escape sequence for stderr. +func NewColorableStderr() io.Writer { + return os.Stderr +} diff --git a/vendor/github.com/mattn/go-colorable/colorable_others.go b/vendor/github.com/mattn/go-colorable/colorable_others.go new file mode 100644 index 000000000..3fb771dcc --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/colorable_others.go @@ -0,0 +1,30 @@ +// +build !windows +// +build !appengine + +package colorable + +import ( + "io" + "os" + + _ "github.com/mattn/go-isatty" +) + +// NewColorable returns new instance of Writer which handles escape sequence. +func NewColorable(file *os.File) io.Writer { + if file == nil { + panic("nil passed instead of *os.File to NewColorable()") + } + + return file +} + +// NewColorableStdout returns new instance of Writer which handles escape sequence for stdout. +func NewColorableStdout() io.Writer { + return os.Stdout +} + +// NewColorableStderr returns new instance of Writer which handles escape sequence for stderr. +func NewColorableStderr() io.Writer { + return os.Stderr +} diff --git a/vendor/github.com/mattn/go-colorable/colorable_windows.go b/vendor/github.com/mattn/go-colorable/colorable_windows.go new file mode 100644 index 000000000..1bd628f25 --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/colorable_windows.go @@ -0,0 +1,1005 @@ +// +build windows +// +build !appengine + +package colorable + +import ( + "bytes" + "io" + "math" + "os" + "strconv" + "strings" + "syscall" + "unsafe" + + "github.com/mattn/go-isatty" +) + +const ( + foregroundBlue = 0x1 + foregroundGreen = 0x2 + foregroundRed = 0x4 + foregroundIntensity = 0x8 + foregroundMask = (foregroundRed | foregroundBlue | foregroundGreen | foregroundIntensity) + backgroundBlue = 0x10 + backgroundGreen = 0x20 + backgroundRed = 0x40 + backgroundIntensity = 0x80 + backgroundMask = (backgroundRed | backgroundBlue | backgroundGreen | backgroundIntensity) +) + +const ( + genericRead = 0x80000000 + genericWrite = 0x40000000 +) + +const ( + consoleTextmodeBuffer = 0x1 +) + +type wchar uint16 +type short int16 +type dword uint32 +type word uint16 + +type coord struct { + x short + y short +} + +type smallRect struct { + left short + top short + right short + bottom short +} + +type consoleScreenBufferInfo struct { + size coord + cursorPosition coord + attributes word + window smallRect + maximumWindowSize coord +} + +type consoleCursorInfo struct { + size dword + visible int32 +} + +var ( + kernel32 = syscall.NewLazyDLL("kernel32.dll") + procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo") + procSetConsoleTextAttribute = kernel32.NewProc("SetConsoleTextAttribute") + procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition") + procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW") + procFillConsoleOutputAttribute = kernel32.NewProc("FillConsoleOutputAttribute") + procGetConsoleCursorInfo = kernel32.NewProc("GetConsoleCursorInfo") + procSetConsoleCursorInfo = kernel32.NewProc("SetConsoleCursorInfo") + procSetConsoleTitle = kernel32.NewProc("SetConsoleTitleW") + procCreateConsoleScreenBuffer = kernel32.NewProc("CreateConsoleScreenBuffer") +) + +// Writer provides colorable Writer to the console +type Writer struct { + out io.Writer + handle syscall.Handle + althandle syscall.Handle + oldattr word + oldpos coord + rest bytes.Buffer +} + +// NewColorable returns new instance of Writer which handles escape sequence from File. +func NewColorable(file *os.File) io.Writer { + if file == nil { + panic("nil passed instead of *os.File to NewColorable()") + } + + if isatty.IsTerminal(file.Fd()) { + var csbi consoleScreenBufferInfo + handle := syscall.Handle(file.Fd()) + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + return &Writer{out: file, handle: handle, oldattr: csbi.attributes, oldpos: coord{0, 0}} + } + return file +} + +// NewColorableStdout returns new instance of Writer which handles escape sequence for stdout. +func NewColorableStdout() io.Writer { + return NewColorable(os.Stdout) +} + +// NewColorableStderr returns new instance of Writer which handles escape sequence for stderr. +func NewColorableStderr() io.Writer { + return NewColorable(os.Stderr) +} + +var color256 = map[int]int{ + 0: 0x000000, + 1: 0x800000, + 2: 0x008000, + 3: 0x808000, + 4: 0x000080, + 5: 0x800080, + 6: 0x008080, + 7: 0xc0c0c0, + 8: 0x808080, + 9: 0xff0000, + 10: 0x00ff00, + 11: 0xffff00, + 12: 0x0000ff, + 13: 0xff00ff, + 14: 0x00ffff, + 15: 0xffffff, + 16: 0x000000, + 17: 0x00005f, + 18: 0x000087, + 19: 0x0000af, + 20: 0x0000d7, + 21: 0x0000ff, + 22: 0x005f00, + 23: 0x005f5f, + 24: 0x005f87, + 25: 0x005faf, + 26: 0x005fd7, + 27: 0x005fff, + 28: 0x008700, + 29: 0x00875f, + 30: 0x008787, + 31: 0x0087af, + 32: 0x0087d7, + 33: 0x0087ff, + 34: 0x00af00, + 35: 0x00af5f, + 36: 0x00af87, + 37: 0x00afaf, + 38: 0x00afd7, + 39: 0x00afff, + 40: 0x00d700, + 41: 0x00d75f, + 42: 0x00d787, + 43: 0x00d7af, + 44: 0x00d7d7, + 45: 0x00d7ff, + 46: 0x00ff00, + 47: 0x00ff5f, + 48: 0x00ff87, + 49: 0x00ffaf, + 50: 0x00ffd7, + 51: 0x00ffff, + 52: 0x5f0000, + 53: 0x5f005f, + 54: 0x5f0087, + 55: 0x5f00af, + 56: 0x5f00d7, + 57: 0x5f00ff, + 58: 0x5f5f00, + 59: 0x5f5f5f, + 60: 0x5f5f87, + 61: 0x5f5faf, + 62: 0x5f5fd7, + 63: 0x5f5fff, + 64: 0x5f8700, + 65: 0x5f875f, + 66: 0x5f8787, + 67: 0x5f87af, + 68: 0x5f87d7, + 69: 0x5f87ff, + 70: 0x5faf00, + 71: 0x5faf5f, + 72: 0x5faf87, + 73: 0x5fafaf, + 74: 0x5fafd7, + 75: 0x5fafff, + 76: 0x5fd700, + 77: 0x5fd75f, + 78: 0x5fd787, + 79: 0x5fd7af, + 80: 0x5fd7d7, + 81: 0x5fd7ff, + 82: 0x5fff00, + 83: 0x5fff5f, + 84: 0x5fff87, + 85: 0x5fffaf, + 86: 0x5fffd7, + 87: 0x5fffff, + 88: 0x870000, + 89: 0x87005f, + 90: 0x870087, + 91: 0x8700af, + 92: 0x8700d7, + 93: 0x8700ff, + 94: 0x875f00, + 95: 0x875f5f, + 96: 0x875f87, + 97: 0x875faf, + 98: 0x875fd7, + 99: 0x875fff, + 100: 0x878700, + 101: 0x87875f, + 102: 0x878787, + 103: 0x8787af, + 104: 0x8787d7, + 105: 0x8787ff, + 106: 0x87af00, + 107: 0x87af5f, + 108: 0x87af87, + 109: 0x87afaf, + 110: 0x87afd7, + 111: 0x87afff, + 112: 0x87d700, + 113: 0x87d75f, + 114: 0x87d787, + 115: 0x87d7af, + 116: 0x87d7d7, + 117: 0x87d7ff, + 118: 0x87ff00, + 119: 0x87ff5f, + 120: 0x87ff87, + 121: 0x87ffaf, + 122: 0x87ffd7, + 123: 0x87ffff, + 124: 0xaf0000, + 125: 0xaf005f, + 126: 0xaf0087, + 127: 0xaf00af, + 128: 0xaf00d7, + 129: 0xaf00ff, + 130: 0xaf5f00, + 131: 0xaf5f5f, + 132: 0xaf5f87, + 133: 0xaf5faf, + 134: 0xaf5fd7, + 135: 0xaf5fff, + 136: 0xaf8700, + 137: 0xaf875f, + 138: 0xaf8787, + 139: 0xaf87af, + 140: 0xaf87d7, + 141: 0xaf87ff, + 142: 0xafaf00, + 143: 0xafaf5f, + 144: 0xafaf87, + 145: 0xafafaf, + 146: 0xafafd7, + 147: 0xafafff, + 148: 0xafd700, + 149: 0xafd75f, + 150: 0xafd787, + 151: 0xafd7af, + 152: 0xafd7d7, + 153: 0xafd7ff, + 154: 0xafff00, + 155: 0xafff5f, + 156: 0xafff87, + 157: 0xafffaf, + 158: 0xafffd7, + 159: 0xafffff, + 160: 0xd70000, + 161: 0xd7005f, + 162: 0xd70087, + 163: 0xd700af, + 164: 0xd700d7, + 165: 0xd700ff, + 166: 0xd75f00, + 167: 0xd75f5f, + 168: 0xd75f87, + 169: 0xd75faf, + 170: 0xd75fd7, + 171: 0xd75fff, + 172: 0xd78700, + 173: 0xd7875f, + 174: 0xd78787, + 175: 0xd787af, + 176: 0xd787d7, + 177: 0xd787ff, + 178: 0xd7af00, + 179: 0xd7af5f, + 180: 0xd7af87, + 181: 0xd7afaf, + 182: 0xd7afd7, + 183: 0xd7afff, + 184: 0xd7d700, + 185: 0xd7d75f, + 186: 0xd7d787, + 187: 0xd7d7af, + 188: 0xd7d7d7, + 189: 0xd7d7ff, + 190: 0xd7ff00, + 191: 0xd7ff5f, + 192: 0xd7ff87, + 193: 0xd7ffaf, + 194: 0xd7ffd7, + 195: 0xd7ffff, + 196: 0xff0000, + 197: 0xff005f, + 198: 0xff0087, + 199: 0xff00af, + 200: 0xff00d7, + 201: 0xff00ff, + 202: 0xff5f00, + 203: 0xff5f5f, + 204: 0xff5f87, + 205: 0xff5faf, + 206: 0xff5fd7, + 207: 0xff5fff, + 208: 0xff8700, + 209: 0xff875f, + 210: 0xff8787, + 211: 0xff87af, + 212: 0xff87d7, + 213: 0xff87ff, + 214: 0xffaf00, + 215: 0xffaf5f, + 216: 0xffaf87, + 217: 0xffafaf, + 218: 0xffafd7, + 219: 0xffafff, + 220: 0xffd700, + 221: 0xffd75f, + 222: 0xffd787, + 223: 0xffd7af, + 224: 0xffd7d7, + 225: 0xffd7ff, + 226: 0xffff00, + 227: 0xffff5f, + 228: 0xffff87, + 229: 0xffffaf, + 230: 0xffffd7, + 231: 0xffffff, + 232: 0x080808, + 233: 0x121212, + 234: 0x1c1c1c, + 235: 0x262626, + 236: 0x303030, + 237: 0x3a3a3a, + 238: 0x444444, + 239: 0x4e4e4e, + 240: 0x585858, + 241: 0x626262, + 242: 0x6c6c6c, + 243: 0x767676, + 244: 0x808080, + 245: 0x8a8a8a, + 246: 0x949494, + 247: 0x9e9e9e, + 248: 0xa8a8a8, + 249: 0xb2b2b2, + 250: 0xbcbcbc, + 251: 0xc6c6c6, + 252: 0xd0d0d0, + 253: 0xdadada, + 254: 0xe4e4e4, + 255: 0xeeeeee, +} + +// `\033]0;TITLESTR\007` +func doTitleSequence(er *bytes.Reader) error { + var c byte + var err error + + c, err = er.ReadByte() + if err != nil { + return err + } + if c != '0' && c != '2' { + return nil + } + c, err = er.ReadByte() + if err != nil { + return err + } + if c != ';' { + return nil + } + title := make([]byte, 0, 80) + for { + c, err = er.ReadByte() + if err != nil { + return err + } + if c == 0x07 || c == '\n' { + break + } + title = append(title, c) + } + if len(title) > 0 { + title8, err := syscall.UTF16PtrFromString(string(title)) + if err == nil { + procSetConsoleTitle.Call(uintptr(unsafe.Pointer(title8))) + } + } + return nil +} + +// returns Atoi(s) unless s == "" in which case it returns def +func atoiWithDefault(s string, def int) (int, error) { + if s == "" { + return def, nil + } + return strconv.Atoi(s) +} + +// Write writes data on console +func (w *Writer) Write(data []byte) (n int, err error) { + var csbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi))) + + handle := w.handle + + var er *bytes.Reader + if w.rest.Len() > 0 { + var rest bytes.Buffer + w.rest.WriteTo(&rest) + w.rest.Reset() + rest.Write(data) + er = bytes.NewReader(rest.Bytes()) + } else { + er = bytes.NewReader(data) + } + var bw [1]byte +loop: + for { + c1, err := er.ReadByte() + if err != nil { + break loop + } + if c1 != 0x1b { + bw[0] = c1 + w.out.Write(bw[:]) + continue + } + c2, err := er.ReadByte() + if err != nil { + break loop + } + + switch c2 { + case '>': + continue + case ']': + w.rest.WriteByte(c1) + w.rest.WriteByte(c2) + er.WriteTo(&w.rest) + if bytes.IndexByte(w.rest.Bytes(), 0x07) == -1 { + break loop + } + er = bytes.NewReader(w.rest.Bytes()[2:]) + err := doTitleSequence(er) + if err != nil { + break loop + } + w.rest.Reset() + continue + // https://github.com/mattn/go-colorable/issues/27 + case '7': + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + w.oldpos = csbi.cursorPosition + continue + case '8': + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&w.oldpos))) + continue + case 0x5b: + // execute part after switch + default: + continue + } + + w.rest.WriteByte(c1) + w.rest.WriteByte(c2) + er.WriteTo(&w.rest) + + var buf bytes.Buffer + var m byte + for i, c := range w.rest.Bytes()[2:] { + if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' { + m = c + er = bytes.NewReader(w.rest.Bytes()[2+i+1:]) + w.rest.Reset() + break + } + buf.Write([]byte(string(c))) + } + if m == 0 { + break loop + } + + switch m { + case 'A': + n, err = atoiWithDefault(buf.String(), 1) + if err != nil { + continue + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.y -= short(n) + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'B': + n, err = atoiWithDefault(buf.String(), 1) + if err != nil { + continue + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.y += short(n) + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'C': + n, err = atoiWithDefault(buf.String(), 1) + if err != nil { + continue + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.x += short(n) + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'D': + n, err = atoiWithDefault(buf.String(), 1) + if err != nil { + continue + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.x -= short(n) + if csbi.cursorPosition.x < 0 { + csbi.cursorPosition.x = 0 + } + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'E': + n, err = strconv.Atoi(buf.String()) + if err != nil { + continue + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.x = 0 + csbi.cursorPosition.y += short(n) + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'F': + n, err = strconv.Atoi(buf.String()) + if err != nil { + continue + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.x = 0 + csbi.cursorPosition.y -= short(n) + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'G': + n, err = strconv.Atoi(buf.String()) + if err != nil { + continue + } + if n < 1 { + n = 1 + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + csbi.cursorPosition.x = short(n - 1) + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'H', 'f': + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + if buf.Len() > 0 { + token := strings.Split(buf.String(), ";") + switch len(token) { + case 1: + n1, err := strconv.Atoi(token[0]) + if err != nil { + continue + } + csbi.cursorPosition.y = short(n1 - 1) + case 2: + n1, err := strconv.Atoi(token[0]) + if err != nil { + continue + } + n2, err := strconv.Atoi(token[1]) + if err != nil { + continue + } + csbi.cursorPosition.x = short(n2 - 1) + csbi.cursorPosition.y = short(n1 - 1) + } + } else { + csbi.cursorPosition.y = 0 + } + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition))) + case 'J': + n := 0 + if buf.Len() > 0 { + n, err = strconv.Atoi(buf.String()) + if err != nil { + continue + } + } + var count, written dword + var cursor coord + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + switch n { + case 0: + cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y} + count = dword(csbi.size.x) - dword(csbi.cursorPosition.x) + dword(csbi.size.y-csbi.cursorPosition.y)*dword(csbi.size.x) + case 1: + cursor = coord{x: csbi.window.left, y: csbi.window.top} + count = dword(csbi.size.x) - dword(csbi.cursorPosition.x) + dword(csbi.window.top-csbi.cursorPosition.y)*dword(csbi.size.x) + case 2: + cursor = coord{x: csbi.window.left, y: csbi.window.top} + count = dword(csbi.size.x) - dword(csbi.cursorPosition.x) + dword(csbi.size.y-csbi.cursorPosition.y)*dword(csbi.size.x) + } + procFillConsoleOutputCharacter.Call(uintptr(handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written))) + procFillConsoleOutputAttribute.Call(uintptr(handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written))) + case 'K': + n := 0 + if buf.Len() > 0 { + n, err = strconv.Atoi(buf.String()) + if err != nil { + continue + } + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + var cursor coord + var count, written dword + switch n { + case 0: + cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y} + count = dword(csbi.size.x - csbi.cursorPosition.x) + case 1: + cursor = coord{x: csbi.window.left, y: csbi.cursorPosition.y} + count = dword(csbi.size.x - csbi.cursorPosition.x) + case 2: + cursor = coord{x: csbi.window.left, y: csbi.cursorPosition.y} + count = dword(csbi.size.x) + } + procFillConsoleOutputCharacter.Call(uintptr(handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written))) + procFillConsoleOutputAttribute.Call(uintptr(handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written))) + case 'X': + n := 0 + if buf.Len() > 0 { + n, err = strconv.Atoi(buf.String()) + if err != nil { + continue + } + } + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + var cursor coord + var written dword + cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y} + procFillConsoleOutputCharacter.Call(uintptr(handle), uintptr(' '), uintptr(n), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written))) + procFillConsoleOutputAttribute.Call(uintptr(handle), uintptr(csbi.attributes), uintptr(n), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written))) + case 'm': + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + attr := csbi.attributes + cs := buf.String() + if cs == "" { + procSetConsoleTextAttribute.Call(uintptr(handle), uintptr(w.oldattr)) + continue + } + token := strings.Split(cs, ";") + for i := 0; i < len(token); i++ { + ns := token[i] + if n, err = strconv.Atoi(ns); err == nil { + switch { + case n == 0 || n == 100: + attr = w.oldattr + case 1 <= n && n <= 5: + attr |= foregroundIntensity + case n == 7: + attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4) + case n == 22 || n == 25: + attr |= foregroundIntensity + case n == 27: + attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4) + case 30 <= n && n <= 37: + attr &= backgroundMask + if (n-30)&1 != 0 { + attr |= foregroundRed + } + if (n-30)&2 != 0 { + attr |= foregroundGreen + } + if (n-30)&4 != 0 { + attr |= foregroundBlue + } + case n == 38: // set foreground color. + if i < len(token)-2 && (token[i+1] == "5" || token[i+1] == "05") { + if n256, err := strconv.Atoi(token[i+2]); err == nil { + if n256foreAttr == nil { + n256setup() + } + attr &= backgroundMask + attr |= n256foreAttr[n256] + i += 2 + } + } else if len(token) == 5 && token[i+1] == "2" { + var r, g, b int + r, _ = strconv.Atoi(token[i+2]) + g, _ = strconv.Atoi(token[i+3]) + b, _ = strconv.Atoi(token[i+4]) + i += 4 + if r > 127 { + attr |= foregroundRed + } + if g > 127 { + attr |= foregroundGreen + } + if b > 127 { + attr |= foregroundBlue + } + } else { + attr = attr & (w.oldattr & backgroundMask) + } + case n == 39: // reset foreground color. + attr &= backgroundMask + attr |= w.oldattr & foregroundMask + case 40 <= n && n <= 47: + attr &= foregroundMask + if (n-40)&1 != 0 { + attr |= backgroundRed + } + if (n-40)&2 != 0 { + attr |= backgroundGreen + } + if (n-40)&4 != 0 { + attr |= backgroundBlue + } + case n == 48: // set background color. + if i < len(token)-2 && token[i+1] == "5" { + if n256, err := strconv.Atoi(token[i+2]); err == nil { + if n256backAttr == nil { + n256setup() + } + attr &= foregroundMask + attr |= n256backAttr[n256] + i += 2 + } + } else if len(token) == 5 && token[i+1] == "2" { + var r, g, b int + r, _ = strconv.Atoi(token[i+2]) + g, _ = strconv.Atoi(token[i+3]) + b, _ = strconv.Atoi(token[i+4]) + i += 4 + if r > 127 { + attr |= backgroundRed + } + if g > 127 { + attr |= backgroundGreen + } + if b > 127 { + attr |= backgroundBlue + } + } else { + attr = attr & (w.oldattr & foregroundMask) + } + case n == 49: // reset foreground color. + attr &= foregroundMask + attr |= w.oldattr & backgroundMask + case 90 <= n && n <= 97: + attr = (attr & backgroundMask) + attr |= foregroundIntensity + if (n-90)&1 != 0 { + attr |= foregroundRed + } + if (n-90)&2 != 0 { + attr |= foregroundGreen + } + if (n-90)&4 != 0 { + attr |= foregroundBlue + } + case 100 <= n && n <= 107: + attr = (attr & foregroundMask) + attr |= backgroundIntensity + if (n-100)&1 != 0 { + attr |= backgroundRed + } + if (n-100)&2 != 0 { + attr |= backgroundGreen + } + if (n-100)&4 != 0 { + attr |= backgroundBlue + } + } + procSetConsoleTextAttribute.Call(uintptr(handle), uintptr(attr)) + } + } + case 'h': + var ci consoleCursorInfo + cs := buf.String() + if cs == "5>" { + procGetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + ci.visible = 0 + procSetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + } else if cs == "?25" { + procGetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + ci.visible = 1 + procSetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + } else if cs == "?1049" { + if w.althandle == 0 { + h, _, _ := procCreateConsoleScreenBuffer.Call(uintptr(genericRead|genericWrite), 0, 0, uintptr(consoleTextmodeBuffer), 0, 0) + w.althandle = syscall.Handle(h) + if w.althandle != 0 { + handle = w.althandle + } + } + } + case 'l': + var ci consoleCursorInfo + cs := buf.String() + if cs == "5>" { + procGetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + ci.visible = 1 + procSetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + } else if cs == "?25" { + procGetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + ci.visible = 0 + procSetConsoleCursorInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&ci))) + } else if cs == "?1049" { + if w.althandle != 0 { + syscall.CloseHandle(w.althandle) + w.althandle = 0 + handle = w.handle + } + } + case 's': + procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi))) + w.oldpos = csbi.cursorPosition + case 'u': + procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&w.oldpos))) + } + } + + return len(data), nil +} + +type consoleColor struct { + rgb int + red bool + green bool + blue bool + intensity bool +} + +func (c consoleColor) foregroundAttr() (attr word) { + if c.red { + attr |= foregroundRed + } + if c.green { + attr |= foregroundGreen + } + if c.blue { + attr |= foregroundBlue + } + if c.intensity { + attr |= foregroundIntensity + } + return +} + +func (c consoleColor) backgroundAttr() (attr word) { + if c.red { + attr |= backgroundRed + } + if c.green { + attr |= backgroundGreen + } + if c.blue { + attr |= backgroundBlue + } + if c.intensity { + attr |= backgroundIntensity + } + return +} + +var color16 = []consoleColor{ + {0x000000, false, false, false, false}, + {0x000080, false, false, true, false}, + {0x008000, false, true, false, false}, + {0x008080, false, true, true, false}, + {0x800000, true, false, false, false}, + {0x800080, true, false, true, false}, + {0x808000, true, true, false, false}, + {0xc0c0c0, true, true, true, false}, + {0x808080, false, false, false, true}, + {0x0000ff, false, false, true, true}, + {0x00ff00, false, true, false, true}, + {0x00ffff, false, true, true, true}, + {0xff0000, true, false, false, true}, + {0xff00ff, true, false, true, true}, + {0xffff00, true, true, false, true}, + {0xffffff, true, true, true, true}, +} + +type hsv struct { + h, s, v float32 +} + +func (a hsv) dist(b hsv) float32 { + dh := a.h - b.h + switch { + case dh > 0.5: + dh = 1 - dh + case dh < -0.5: + dh = -1 - dh + } + ds := a.s - b.s + dv := a.v - b.v + return float32(math.Sqrt(float64(dh*dh + ds*ds + dv*dv))) +} + +func toHSV(rgb int) hsv { + r, g, b := float32((rgb&0xFF0000)>>16)/256.0, + float32((rgb&0x00FF00)>>8)/256.0, + float32(rgb&0x0000FF)/256.0 + min, max := minmax3f(r, g, b) + h := max - min + if h > 0 { + if max == r { + h = (g - b) / h + if h < 0 { + h += 6 + } + } else if max == g { + h = 2 + (b-r)/h + } else { + h = 4 + (r-g)/h + } + } + h /= 6.0 + s := max - min + if max != 0 { + s /= max + } + v := max + return hsv{h: h, s: s, v: v} +} + +type hsvTable []hsv + +func toHSVTable(rgbTable []consoleColor) hsvTable { + t := make(hsvTable, len(rgbTable)) + for i, c := range rgbTable { + t[i] = toHSV(c.rgb) + } + return t +} + +func (t hsvTable) find(rgb int) consoleColor { + hsv := toHSV(rgb) + n := 7 + l := float32(5.0) + for i, p := range t { + d := hsv.dist(p) + if d < l { + l, n = d, i + } + } + return color16[n] +} + +func minmax3f(a, b, c float32) (min, max float32) { + if a < b { + if b < c { + return a, c + } else if a < c { + return a, b + } else { + return c, b + } + } else { + if a < c { + return b, c + } else if b < c { + return b, a + } else { + return c, a + } + } +} + +var n256foreAttr []word +var n256backAttr []word + +func n256setup() { + n256foreAttr = make([]word, 256) + n256backAttr = make([]word, 256) + t := toHSVTable(color16) + for i, rgb := range color256 { + c := t.find(rgb) + n256foreAttr[i] = c.foregroundAttr() + n256backAttr[i] = c.backgroundAttr() + } +} diff --git a/vendor/github.com/mattn/go-colorable/go.mod b/vendor/github.com/mattn/go-colorable/go.mod new file mode 100644 index 000000000..ef3ca9d4c --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/go.mod @@ -0,0 +1,3 @@ +module github.com/mattn/go-colorable + +require github.com/mattn/go-isatty v0.0.8 diff --git a/vendor/github.com/mattn/go-colorable/go.sum b/vendor/github.com/mattn/go-colorable/go.sum new file mode 100644 index 000000000..2c12960ec --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/go.sum @@ -0,0 +1,4 @@ +github.com/mattn/go-isatty v0.0.5 h1:tHXDdz1cpzGaovsTB+TVB8q90WEokoVmfMqoVcrLUgw= +github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= +golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8= +golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= diff --git a/vendor/github.com/mattn/go-colorable/noncolorable.go b/vendor/github.com/mattn/go-colorable/noncolorable.go new file mode 100644 index 000000000..95f2c6be2 --- /dev/null +++ b/vendor/github.com/mattn/go-colorable/noncolorable.go @@ -0,0 +1,55 @@ +package colorable + +import ( + "bytes" + "io" +) + +// NonColorable holds writer but removes escape sequence. +type NonColorable struct { + out io.Writer +} + +// NewNonColorable returns new instance of Writer which removes escape sequence from Writer. +func NewNonColorable(w io.Writer) io.Writer { + return &NonColorable{out: w} +} + +// Write writes data on console +func (w *NonColorable) Write(data []byte) (n int, err error) { + er := bytes.NewReader(data) + var bw [1]byte +loop: + for { + c1, err := er.ReadByte() + if err != nil { + break loop + } + if c1 != 0x1b { + bw[0] = c1 + w.out.Write(bw[:]) + continue + } + c2, err := er.ReadByte() + if err != nil { + break loop + } + if c2 != 0x5b { + continue + } + + var buf bytes.Buffer + for { + c, err := er.ReadByte() + if err != nil { + break loop + } + if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' { + break + } + buf.Write([]byte(string(c))) + } + } + + return len(data), nil +} diff --git a/vendor/github.com/mattn/go-isatty/go.mod b/vendor/github.com/mattn/go-isatty/go.mod index f310320c3..53d84a672 100644 --- a/vendor/github.com/mattn/go-isatty/go.mod +++ b/vendor/github.com/mattn/go-isatty/go.mod @@ -1,3 +1,5 @@ module github.com/mattn/go-isatty -require golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 +go 1.12 + +require golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 diff --git a/vendor/github.com/mattn/go-isatty/go.sum b/vendor/github.com/mattn/go-isatty/go.sum index 426c8973c..5e0752bdf 100644 --- a/vendor/github.com/mattn/go-isatty/go.sum +++ b/vendor/github.com/mattn/go-isatty/go.sum @@ -1,2 +1,2 @@ -golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8= -golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4= +golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= diff --git a/vendor/github.com/mattn/go-isatty/isatty_others.go b/vendor/github.com/mattn/go-isatty/isatty_others.go index f02849c56..ff714a376 100644 --- a/vendor/github.com/mattn/go-isatty/isatty_others.go +++ b/vendor/github.com/mattn/go-isatty/isatty_others.go @@ -1,4 +1,4 @@ -// +build appengine js +// +build appengine js nacl package isatty diff --git a/vendor/github.com/mattn/go-isatty/isatty_plan9.go b/vendor/github.com/mattn/go-isatty/isatty_plan9.go new file mode 100644 index 000000000..c5b6e0c08 --- /dev/null +++ b/vendor/github.com/mattn/go-isatty/isatty_plan9.go @@ -0,0 +1,22 @@ +// +build plan9 + +package isatty + +import ( + "syscall" +) + +// IsTerminal returns true if the given file descriptor is a terminal. +func IsTerminal(fd uintptr) bool { + path, err := syscall.Fd2path(int(fd)) + if err != nil { + return false + } + return path == "/dev/cons" || path == "/mnt/term/dev/cons" +} + +// IsCygwinTerminal return true if the file descriptor is a cygwin or msys2 +// terminal. This is also always false on this environment. +func IsCygwinTerminal(fd uintptr) bool { + return false +} diff --git a/vendor/github.com/mattn/go-isatty/isatty_linux.go b/vendor/github.com/mattn/go-isatty/isatty_tcgets.go similarity index 95% rename from vendor/github.com/mattn/go-isatty/isatty_linux.go rename to vendor/github.com/mattn/go-isatty/isatty_tcgets.go index 4f8af4652..453b025d0 100644 --- a/vendor/github.com/mattn/go-isatty/isatty_linux.go +++ b/vendor/github.com/mattn/go-isatty/isatty_tcgets.go @@ -1,4 +1,4 @@ -// +build linux +// +build linux aix // +build !appengine // +build !android diff --git a/vendor/github.com/mattn/go-isatty/isatty_windows.go b/vendor/github.com/mattn/go-isatty/isatty_windows.go index af51cbcaa..1fa869154 100644 --- a/vendor/github.com/mattn/go-isatty/isatty_windows.go +++ b/vendor/github.com/mattn/go-isatty/isatty_windows.go @@ -4,6 +4,7 @@ package isatty import ( + "errors" "strings" "syscall" "unicode/utf16" @@ -11,15 +12,18 @@ import ( ) const ( - fileNameInfo uintptr = 2 - fileTypePipe = 3 + objectNameInfo uintptr = 1 + fileNameInfo = 2 + fileTypePipe = 3 ) var ( kernel32 = syscall.NewLazyDLL("kernel32.dll") + ntdll = syscall.NewLazyDLL("ntdll.dll") procGetConsoleMode = kernel32.NewProc("GetConsoleMode") procGetFileInformationByHandleEx = kernel32.NewProc("GetFileInformationByHandleEx") procGetFileType = kernel32.NewProc("GetFileType") + procNtQueryObject = ntdll.NewProc("NtQueryObject") ) func init() { @@ -45,7 +49,10 @@ func isCygwinPipeName(name string) bool { return false } - if token[0] != `\msys` && token[0] != `\cygwin` { + if token[0] != `\msys` && + token[0] != `\cygwin` && + token[0] != `\Device\NamedPipe\msys` && + token[0] != `\Device\NamedPipe\cygwin` { return false } @@ -68,11 +75,35 @@ func isCygwinPipeName(name string) bool { return true } +// getFileNameByHandle use the undocomented ntdll NtQueryObject to get file full name from file handler +// since GetFileInformationByHandleEx is not avilable under windows Vista and still some old fashion +// guys are using Windows XP, this is a workaround for those guys, it will also work on system from +// Windows vista to 10 +// see https://stackoverflow.com/a/18792477 for details +func getFileNameByHandle(fd uintptr) (string, error) { + if procNtQueryObject == nil { + return "", errors.New("ntdll.dll: NtQueryObject not supported") + } + + var buf [4 + syscall.MAX_PATH]uint16 + var result int + r, _, e := syscall.Syscall6(procNtQueryObject.Addr(), 5, + fd, objectNameInfo, uintptr(unsafe.Pointer(&buf)), uintptr(2*len(buf)), uintptr(unsafe.Pointer(&result)), 0) + if r != 0 { + return "", e + } + return string(utf16.Decode(buf[4 : 4+buf[0]/2])), nil +} + // IsCygwinTerminal() return true if the file descriptor is a cygwin or msys2 // terminal. func IsCygwinTerminal(fd uintptr) bool { if procGetFileInformationByHandleEx == nil { - return false + name, err := getFileNameByHandle(fd) + if err != nil { + return false + } + return isCygwinPipeName(name) } // Cygwin/msys's pty is a pipe. diff --git a/vendor/github.com/mattn/go-runewidth/.travis.yml b/vendor/github.com/mattn/go-runewidth/.travis.yml new file mode 100644 index 000000000..5c9c2a30f --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/.travis.yml @@ -0,0 +1,8 @@ +language: go +go: + - tip +before_install: + - go get github.com/mattn/goveralls + - go get golang.org/x/tools/cmd/cover +script: + - $HOME/gopath/bin/goveralls -repotoken lAKAWPzcGsD3A8yBX3BGGtRUdJ6CaGERL diff --git a/vendor/github.com/mattn/go-runewidth/LICENSE b/vendor/github.com/mattn/go-runewidth/LICENSE new file mode 100644 index 000000000..91b5cef30 --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Yasuhiro Matsumoto + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/mattn/go-runewidth/README.mkd b/vendor/github.com/mattn/go-runewidth/README.mkd new file mode 100644 index 000000000..66663a94b --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/README.mkd @@ -0,0 +1,27 @@ +go-runewidth +============ + +[![Build Status](https://travis-ci.org/mattn/go-runewidth.png?branch=master)](https://travis-ci.org/mattn/go-runewidth) +[![Coverage Status](https://coveralls.io/repos/mattn/go-runewidth/badge.png?branch=HEAD)](https://coveralls.io/r/mattn/go-runewidth?branch=HEAD) +[![GoDoc](https://godoc.org/github.com/mattn/go-runewidth?status.svg)](http://godoc.org/github.com/mattn/go-runewidth) +[![Go Report Card](https://goreportcard.com/badge/github.com/mattn/go-runewidth)](https://goreportcard.com/report/github.com/mattn/go-runewidth) + +Provides functions to get fixed width of the character or string. + +Usage +----- + +```go +runewidth.StringWidth("つのだ☆HIRO") == 12 +``` + + +Author +------ + +Yasuhiro Matsumoto + +License +------- + +under the MIT License: http://mattn.mit-license.org/2013 diff --git a/vendor/github.com/mattn/go-runewidth/go.mod b/vendor/github.com/mattn/go-runewidth/go.mod new file mode 100644 index 000000000..fa7f4d864 --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/go.mod @@ -0,0 +1,3 @@ +module github.com/mattn/go-runewidth + +go 1.9 diff --git a/vendor/github.com/mattn/go-runewidth/runewidth.go b/vendor/github.com/mattn/go-runewidth/runewidth.go new file mode 100644 index 000000000..8d64da077 --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/runewidth.go @@ -0,0 +1,258 @@ +package runewidth + +import ( + "os" +) + +//go:generate go run script/generate.go + +var ( + // EastAsianWidth will be set true if the current locale is CJK + EastAsianWidth bool + + // ZeroWidthJoiner is flag to set to use UTR#51 ZWJ + ZeroWidthJoiner bool + + // DefaultCondition is a condition in current locale + DefaultCondition = &Condition{} +) + +func init() { + handleEnv() +} + +func handleEnv() { + env := os.Getenv("RUNEWIDTH_EASTASIAN") + if env == "" { + EastAsianWidth = IsEastAsian() + } else { + EastAsianWidth = env == "1" + } + // update DefaultCondition + DefaultCondition.EastAsianWidth = EastAsianWidth + DefaultCondition.ZeroWidthJoiner = ZeroWidthJoiner +} + +type interval struct { + first rune + last rune +} + +type table []interval + +func inTables(r rune, ts ...table) bool { + for _, t := range ts { + if inTable(r, t) { + return true + } + } + return false +} + +func inTable(r rune, t table) bool { + // func (t table) IncludesRune(r rune) bool { + if r < t[0].first { + return false + } + + bot := 0 + top := len(t) - 1 + for top >= bot { + mid := (bot + top) >> 1 + + switch { + case t[mid].last < r: + bot = mid + 1 + case t[mid].first > r: + top = mid - 1 + default: + return true + } + } + + return false +} + +var private = table{ + {0x00E000, 0x00F8FF}, {0x0F0000, 0x0FFFFD}, {0x100000, 0x10FFFD}, +} + +var nonprint = table{ + {0x0000, 0x001F}, {0x007F, 0x009F}, {0x00AD, 0x00AD}, + {0x070F, 0x070F}, {0x180B, 0x180E}, {0x200B, 0x200F}, + {0x2028, 0x202E}, {0x206A, 0x206F}, {0xD800, 0xDFFF}, + {0xFEFF, 0xFEFF}, {0xFFF9, 0xFFFB}, {0xFFFE, 0xFFFF}, +} + +// Condition have flag EastAsianWidth whether the current locale is CJK or not. +type Condition struct { + EastAsianWidth bool + ZeroWidthJoiner bool +} + +// NewCondition return new instance of Condition which is current locale. +func NewCondition() *Condition { + return &Condition{ + EastAsianWidth: EastAsianWidth, + ZeroWidthJoiner: ZeroWidthJoiner, + } +} + +// RuneWidth returns the number of cells in r. +// See http://www.unicode.org/reports/tr11/ +func (c *Condition) RuneWidth(r rune) int { + switch { + case r < 0 || r > 0x10FFFF || inTables(r, nonprint, combining, notassigned): + return 0 + case (c.EastAsianWidth && IsAmbiguousWidth(r)) || inTables(r, doublewidth): + return 2 + default: + return 1 + } +} + +func (c *Condition) stringWidth(s string) (width int) { + for _, r := range []rune(s) { + width += c.RuneWidth(r) + } + return width +} + +func (c *Condition) stringWidthZeroJoiner(s string) (width int) { + r1, r2 := rune(0), rune(0) + for _, r := range []rune(s) { + if r == 0xFE0E || r == 0xFE0F { + continue + } + w := c.RuneWidth(r) + if r2 == 0x200D && inTables(r, emoji) && inTables(r1, emoji) { + if width < w { + width = w + } + } else { + width += w + } + r1, r2 = r2, r + } + return width +} + +// StringWidth return width as you can see +func (c *Condition) StringWidth(s string) (width int) { + if c.ZeroWidthJoiner { + return c.stringWidthZeroJoiner(s) + } + return c.stringWidth(s) +} + +// Truncate return string truncated with w cells +func (c *Condition) Truncate(s string, w int, tail string) string { + if c.StringWidth(s) <= w { + return s + } + r := []rune(s) + tw := c.StringWidth(tail) + w -= tw + width := 0 + i := 0 + for ; i < len(r); i++ { + cw := c.RuneWidth(r[i]) + if width+cw > w { + break + } + width += cw + } + return string(r[0:i]) + tail +} + +// Wrap return string wrapped with w cells +func (c *Condition) Wrap(s string, w int) string { + width := 0 + out := "" + for _, r := range []rune(s) { + cw := RuneWidth(r) + if r == '\n' { + out += string(r) + width = 0 + continue + } else if width+cw > w { + out += "\n" + width = 0 + out += string(r) + width += cw + continue + } + out += string(r) + width += cw + } + return out +} + +// FillLeft return string filled in left by spaces in w cells +func (c *Condition) FillLeft(s string, w int) string { + width := c.StringWidth(s) + count := w - width + if count > 0 { + b := make([]byte, count) + for i := range b { + b[i] = ' ' + } + return string(b) + s + } + return s +} + +// FillRight return string filled in left by spaces in w cells +func (c *Condition) FillRight(s string, w int) string { + width := c.StringWidth(s) + count := w - width + if count > 0 { + b := make([]byte, count) + for i := range b { + b[i] = ' ' + } + return s + string(b) + } + return s +} + +// RuneWidth returns the number of cells in r. +// See http://www.unicode.org/reports/tr11/ +func RuneWidth(r rune) int { + return DefaultCondition.RuneWidth(r) +} + +// IsAmbiguousWidth returns whether is ambiguous width or not. +func IsAmbiguousWidth(r rune) bool { + return inTables(r, private, ambiguous) +} + +// IsNeutralWidth returns whether is neutral width or not. +func IsNeutralWidth(r rune) bool { + return inTable(r, neutral) +} + +// StringWidth return width as you can see +func StringWidth(s string) (width int) { + return DefaultCondition.StringWidth(s) +} + +// Truncate return string truncated with w cells +func Truncate(s string, w int, tail string) string { + return DefaultCondition.Truncate(s, w, tail) +} + +// Wrap return string wrapped with w cells +func Wrap(s string, w int) string { + return DefaultCondition.Wrap(s, w) +} + +// FillLeft return string filled in left by spaces in w cells +func FillLeft(s string, w int) string { + return DefaultCondition.FillLeft(s, w) +} + +// FillRight return string filled in left by spaces in w cells +func FillRight(s string, w int) string { + return DefaultCondition.FillRight(s, w) +} diff --git a/vendor/github.com/mattn/go-runewidth/runewidth_appengine.go b/vendor/github.com/mattn/go-runewidth/runewidth_appengine.go new file mode 100644 index 000000000..7d99f6e52 --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/runewidth_appengine.go @@ -0,0 +1,8 @@ +// +build appengine + +package runewidth + +// IsEastAsian return true if the current locale is CJK +func IsEastAsian() bool { + return false +} diff --git a/vendor/github.com/mattn/go-runewidth/runewidth_js.go b/vendor/github.com/mattn/go-runewidth/runewidth_js.go new file mode 100644 index 000000000..c5fdf40ba --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/runewidth_js.go @@ -0,0 +1,9 @@ +// +build js +// +build !appengine + +package runewidth + +func IsEastAsian() bool { + // TODO: Implement this for the web. Detect east asian in a compatible way, and return true. + return false +} diff --git a/vendor/github.com/mattn/go-runewidth/runewidth_posix.go b/vendor/github.com/mattn/go-runewidth/runewidth_posix.go new file mode 100644 index 000000000..66a58b5d8 --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/runewidth_posix.go @@ -0,0 +1,79 @@ +// +build !windows +// +build !js +// +build !appengine + +package runewidth + +import ( + "os" + "regexp" + "strings" +) + +var reLoc = regexp.MustCompile(`^[a-z][a-z][a-z]?(?:_[A-Z][A-Z])?\.(.+)`) + +var mblenTable = map[string]int{ + "utf-8": 6, + "utf8": 6, + "jis": 8, + "eucjp": 3, + "euckr": 2, + "euccn": 2, + "sjis": 2, + "cp932": 2, + "cp51932": 2, + "cp936": 2, + "cp949": 2, + "cp950": 2, + "big5": 2, + "gbk": 2, + "gb2312": 2, +} + +func isEastAsian(locale string) bool { + charset := strings.ToLower(locale) + r := reLoc.FindStringSubmatch(locale) + if len(r) == 2 { + charset = strings.ToLower(r[1]) + } + + if strings.HasSuffix(charset, "@cjk_narrow") { + return false + } + + for pos, b := range []byte(charset) { + if b == '@' { + charset = charset[:pos] + break + } + } + max := 1 + if m, ok := mblenTable[charset]; ok { + max = m + } + if max > 1 && (charset[0] != 'u' || + strings.HasPrefix(locale, "ja") || + strings.HasPrefix(locale, "ko") || + strings.HasPrefix(locale, "zh")) { + return true + } + return false +} + +// IsEastAsian return true if the current locale is CJK +func IsEastAsian() bool { + locale := os.Getenv("LC_CTYPE") + if locale == "" { + locale = os.Getenv("LANG") + } + + // ignore C locale + if locale == "POSIX" || locale == "C" { + return false + } + if len(locale) > 1 && locale[0] == 'C' && (locale[1] == '.' || locale[1] == '-') { + return false + } + + return isEastAsian(locale) +} diff --git a/vendor/github.com/mattn/go-runewidth/runewidth_table.go b/vendor/github.com/mattn/go-runewidth/runewidth_table.go new file mode 100644 index 000000000..9ca6d0e28 --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/runewidth_table.go @@ -0,0 +1,427 @@ +package runewidth + +var combining = table{ + {0x0300, 0x036F}, {0x0483, 0x0489}, {0x07EB, 0x07F3}, + {0x0C00, 0x0C00}, {0x0C04, 0x0C04}, {0x0D00, 0x0D01}, + {0x135D, 0x135F}, {0x1A7F, 0x1A7F}, {0x1AB0, 0x1ABE}, + {0x1B6B, 0x1B73}, {0x1DC0, 0x1DF9}, {0x1DFB, 0x1DFF}, + {0x20D0, 0x20F0}, {0x2CEF, 0x2CF1}, {0x2DE0, 0x2DFF}, + {0x3099, 0x309A}, {0xA66F, 0xA672}, {0xA674, 0xA67D}, + {0xA69E, 0xA69F}, {0xA6F0, 0xA6F1}, {0xA8E0, 0xA8F1}, + {0xFE20, 0xFE2F}, {0x101FD, 0x101FD}, {0x10376, 0x1037A}, + {0x10F46, 0x10F50}, {0x11300, 0x11301}, {0x1133B, 0x1133C}, + {0x11366, 0x1136C}, {0x11370, 0x11374}, {0x16AF0, 0x16AF4}, + {0x1D165, 0x1D169}, {0x1D16D, 0x1D172}, {0x1D17B, 0x1D182}, + {0x1D185, 0x1D18B}, {0x1D1AA, 0x1D1AD}, {0x1D242, 0x1D244}, + {0x1E000, 0x1E006}, {0x1E008, 0x1E018}, {0x1E01B, 0x1E021}, + {0x1E023, 0x1E024}, {0x1E026, 0x1E02A}, {0x1E8D0, 0x1E8D6}, +} + +var doublewidth = table{ + {0x1100, 0x115F}, {0x231A, 0x231B}, {0x2329, 0x232A}, + {0x23E9, 0x23EC}, {0x23F0, 0x23F0}, {0x23F3, 0x23F3}, + {0x25FD, 0x25FE}, {0x2614, 0x2615}, {0x2648, 0x2653}, + {0x267F, 0x267F}, {0x2693, 0x2693}, {0x26A1, 0x26A1}, + {0x26AA, 0x26AB}, {0x26BD, 0x26BE}, {0x26C4, 0x26C5}, + {0x26CE, 0x26CE}, {0x26D4, 0x26D4}, {0x26EA, 0x26EA}, + {0x26F2, 0x26F3}, {0x26F5, 0x26F5}, {0x26FA, 0x26FA}, + {0x26FD, 0x26FD}, {0x2705, 0x2705}, {0x270A, 0x270B}, + {0x2728, 0x2728}, {0x274C, 0x274C}, {0x274E, 0x274E}, + {0x2753, 0x2755}, {0x2757, 0x2757}, {0x2795, 0x2797}, + {0x27B0, 0x27B0}, {0x27BF, 0x27BF}, {0x2B1B, 0x2B1C}, + {0x2B50, 0x2B50}, {0x2B55, 0x2B55}, {0x2E80, 0x2E99}, + {0x2E9B, 0x2EF3}, {0x2F00, 0x2FD5}, {0x2FF0, 0x2FFB}, + {0x3000, 0x303E}, {0x3041, 0x3096}, {0x3099, 0x30FF}, + {0x3105, 0x312F}, {0x3131, 0x318E}, {0x3190, 0x31BA}, + {0x31C0, 0x31E3}, {0x31F0, 0x321E}, {0x3220, 0x3247}, + {0x3250, 0x4DBF}, {0x4E00, 0xA48C}, {0xA490, 0xA4C6}, + {0xA960, 0xA97C}, {0xAC00, 0xD7A3}, {0xF900, 0xFAFF}, + {0xFE10, 0xFE19}, {0xFE30, 0xFE52}, {0xFE54, 0xFE66}, + {0xFE68, 0xFE6B}, {0xFF01, 0xFF60}, {0xFFE0, 0xFFE6}, + {0x16FE0, 0x16FE3}, {0x17000, 0x187F7}, {0x18800, 0x18AF2}, + {0x1B000, 0x1B11E}, {0x1B150, 0x1B152}, {0x1B164, 0x1B167}, + {0x1B170, 0x1B2FB}, {0x1F004, 0x1F004}, {0x1F0CF, 0x1F0CF}, + {0x1F18E, 0x1F18E}, {0x1F191, 0x1F19A}, {0x1F200, 0x1F202}, + {0x1F210, 0x1F23B}, {0x1F240, 0x1F248}, {0x1F250, 0x1F251}, + {0x1F260, 0x1F265}, {0x1F300, 0x1F320}, {0x1F32D, 0x1F335}, + {0x1F337, 0x1F37C}, {0x1F37E, 0x1F393}, {0x1F3A0, 0x1F3CA}, + {0x1F3CF, 0x1F3D3}, {0x1F3E0, 0x1F3F0}, {0x1F3F4, 0x1F3F4}, + {0x1F3F8, 0x1F43E}, {0x1F440, 0x1F440}, {0x1F442, 0x1F4FC}, + {0x1F4FF, 0x1F53D}, {0x1F54B, 0x1F54E}, {0x1F550, 0x1F567}, + {0x1F57A, 0x1F57A}, {0x1F595, 0x1F596}, {0x1F5A4, 0x1F5A4}, + {0x1F5FB, 0x1F64F}, {0x1F680, 0x1F6C5}, {0x1F6CC, 0x1F6CC}, + {0x1F6D0, 0x1F6D2}, {0x1F6D5, 0x1F6D5}, {0x1F6EB, 0x1F6EC}, + {0x1F6F4, 0x1F6FA}, {0x1F7E0, 0x1F7EB}, {0x1F90D, 0x1F971}, + {0x1F973, 0x1F976}, {0x1F97A, 0x1F9A2}, {0x1F9A5, 0x1F9AA}, + {0x1F9AE, 0x1F9CA}, {0x1F9CD, 0x1F9FF}, {0x1FA70, 0x1FA73}, + {0x1FA78, 0x1FA7A}, {0x1FA80, 0x1FA82}, {0x1FA90, 0x1FA95}, + {0x20000, 0x2FFFD}, {0x30000, 0x3FFFD}, +} + +var ambiguous = table{ + {0x00A1, 0x00A1}, {0x00A4, 0x00A4}, {0x00A7, 0x00A8}, + {0x00AA, 0x00AA}, {0x00AD, 0x00AE}, {0x00B0, 0x00B4}, + {0x00B6, 0x00BA}, {0x00BC, 0x00BF}, {0x00C6, 0x00C6}, + {0x00D0, 0x00D0}, {0x00D7, 0x00D8}, {0x00DE, 0x00E1}, + {0x00E6, 0x00E6}, {0x00E8, 0x00EA}, {0x00EC, 0x00ED}, + {0x00F0, 0x00F0}, {0x00F2, 0x00F3}, {0x00F7, 0x00FA}, + {0x00FC, 0x00FC}, {0x00FE, 0x00FE}, {0x0101, 0x0101}, + {0x0111, 0x0111}, {0x0113, 0x0113}, {0x011B, 0x011B}, + {0x0126, 0x0127}, {0x012B, 0x012B}, {0x0131, 0x0133}, + {0x0138, 0x0138}, {0x013F, 0x0142}, {0x0144, 0x0144}, + {0x0148, 0x014B}, {0x014D, 0x014D}, {0x0152, 0x0153}, + {0x0166, 0x0167}, {0x016B, 0x016B}, {0x01CE, 0x01CE}, + {0x01D0, 0x01D0}, {0x01D2, 0x01D2}, {0x01D4, 0x01D4}, + {0x01D6, 0x01D6}, {0x01D8, 0x01D8}, {0x01DA, 0x01DA}, + {0x01DC, 0x01DC}, {0x0251, 0x0251}, {0x0261, 0x0261}, + {0x02C4, 0x02C4}, {0x02C7, 0x02C7}, {0x02C9, 0x02CB}, + {0x02CD, 0x02CD}, {0x02D0, 0x02D0}, {0x02D8, 0x02DB}, + {0x02DD, 0x02DD}, {0x02DF, 0x02DF}, {0x0300, 0x036F}, + {0x0391, 0x03A1}, {0x03A3, 0x03A9}, {0x03B1, 0x03C1}, + {0x03C3, 0x03C9}, {0x0401, 0x0401}, {0x0410, 0x044F}, + {0x0451, 0x0451}, {0x2010, 0x2010}, {0x2013, 0x2016}, + {0x2018, 0x2019}, {0x201C, 0x201D}, {0x2020, 0x2022}, + {0x2024, 0x2027}, {0x2030, 0x2030}, {0x2032, 0x2033}, + {0x2035, 0x2035}, {0x203B, 0x203B}, {0x203E, 0x203E}, + {0x2074, 0x2074}, {0x207F, 0x207F}, {0x2081, 0x2084}, + {0x20AC, 0x20AC}, {0x2103, 0x2103}, {0x2105, 0x2105}, + {0x2109, 0x2109}, {0x2113, 0x2113}, {0x2116, 0x2116}, + {0x2121, 0x2122}, {0x2126, 0x2126}, {0x212B, 0x212B}, + {0x2153, 0x2154}, {0x215B, 0x215E}, {0x2160, 0x216B}, + {0x2170, 0x2179}, {0x2189, 0x2189}, {0x2190, 0x2199}, + {0x21B8, 0x21B9}, {0x21D2, 0x21D2}, {0x21D4, 0x21D4}, + {0x21E7, 0x21E7}, {0x2200, 0x2200}, {0x2202, 0x2203}, + {0x2207, 0x2208}, {0x220B, 0x220B}, {0x220F, 0x220F}, + {0x2211, 0x2211}, {0x2215, 0x2215}, {0x221A, 0x221A}, + {0x221D, 0x2220}, {0x2223, 0x2223}, {0x2225, 0x2225}, + {0x2227, 0x222C}, {0x222E, 0x222E}, {0x2234, 0x2237}, + {0x223C, 0x223D}, {0x2248, 0x2248}, {0x224C, 0x224C}, + {0x2252, 0x2252}, {0x2260, 0x2261}, {0x2264, 0x2267}, + {0x226A, 0x226B}, {0x226E, 0x226F}, {0x2282, 0x2283}, + {0x2286, 0x2287}, {0x2295, 0x2295}, {0x2299, 0x2299}, + {0x22A5, 0x22A5}, {0x22BF, 0x22BF}, {0x2312, 0x2312}, + {0x2460, 0x24E9}, {0x24EB, 0x254B}, {0x2550, 0x2573}, + {0x2580, 0x258F}, {0x2592, 0x2595}, {0x25A0, 0x25A1}, + {0x25A3, 0x25A9}, {0x25B2, 0x25B3}, {0x25B6, 0x25B7}, + {0x25BC, 0x25BD}, {0x25C0, 0x25C1}, {0x25C6, 0x25C8}, + {0x25CB, 0x25CB}, {0x25CE, 0x25D1}, {0x25E2, 0x25E5}, + {0x25EF, 0x25EF}, {0x2605, 0x2606}, {0x2609, 0x2609}, + {0x260E, 0x260F}, {0x261C, 0x261C}, {0x261E, 0x261E}, + {0x2640, 0x2640}, {0x2642, 0x2642}, {0x2660, 0x2661}, + {0x2663, 0x2665}, {0x2667, 0x266A}, {0x266C, 0x266D}, + {0x266F, 0x266F}, {0x269E, 0x269F}, {0x26BF, 0x26BF}, + {0x26C6, 0x26CD}, {0x26CF, 0x26D3}, {0x26D5, 0x26E1}, + {0x26E3, 0x26E3}, {0x26E8, 0x26E9}, {0x26EB, 0x26F1}, + {0x26F4, 0x26F4}, {0x26F6, 0x26F9}, {0x26FB, 0x26FC}, + {0x26FE, 0x26FF}, {0x273D, 0x273D}, {0x2776, 0x277F}, + {0x2B56, 0x2B59}, {0x3248, 0x324F}, {0xE000, 0xF8FF}, + {0xFE00, 0xFE0F}, {0xFFFD, 0xFFFD}, {0x1F100, 0x1F10A}, + {0x1F110, 0x1F12D}, {0x1F130, 0x1F169}, {0x1F170, 0x1F18D}, + {0x1F18F, 0x1F190}, {0x1F19B, 0x1F1AC}, {0xE0100, 0xE01EF}, + {0xF0000, 0xFFFFD}, {0x100000, 0x10FFFD}, +} +var notassigned = table{ + {0x27E6, 0x27ED}, {0x2985, 0x2986}, +} + +var neutral = table{ + {0x0000, 0x001F}, {0x007F, 0x00A0}, {0x00A9, 0x00A9}, + {0x00AB, 0x00AB}, {0x00B5, 0x00B5}, {0x00BB, 0x00BB}, + {0x00C0, 0x00C5}, {0x00C7, 0x00CF}, {0x00D1, 0x00D6}, + {0x00D9, 0x00DD}, {0x00E2, 0x00E5}, {0x00E7, 0x00E7}, + {0x00EB, 0x00EB}, {0x00EE, 0x00EF}, {0x00F1, 0x00F1}, + {0x00F4, 0x00F6}, {0x00FB, 0x00FB}, {0x00FD, 0x00FD}, + {0x00FF, 0x0100}, {0x0102, 0x0110}, {0x0112, 0x0112}, + {0x0114, 0x011A}, {0x011C, 0x0125}, {0x0128, 0x012A}, + {0x012C, 0x0130}, {0x0134, 0x0137}, {0x0139, 0x013E}, + {0x0143, 0x0143}, {0x0145, 0x0147}, {0x014C, 0x014C}, + {0x014E, 0x0151}, {0x0154, 0x0165}, {0x0168, 0x016A}, + {0x016C, 0x01CD}, {0x01CF, 0x01CF}, {0x01D1, 0x01D1}, + {0x01D3, 0x01D3}, {0x01D5, 0x01D5}, {0x01D7, 0x01D7}, + {0x01D9, 0x01D9}, {0x01DB, 0x01DB}, {0x01DD, 0x0250}, + {0x0252, 0x0260}, {0x0262, 0x02C3}, {0x02C5, 0x02C6}, + {0x02C8, 0x02C8}, {0x02CC, 0x02CC}, {0x02CE, 0x02CF}, + {0x02D1, 0x02D7}, {0x02DC, 0x02DC}, {0x02DE, 0x02DE}, + {0x02E0, 0x02FF}, {0x0370, 0x0377}, {0x037A, 0x037F}, + {0x0384, 0x038A}, {0x038C, 0x038C}, {0x038E, 0x0390}, + {0x03AA, 0x03B0}, {0x03C2, 0x03C2}, {0x03CA, 0x0400}, + {0x0402, 0x040F}, {0x0450, 0x0450}, {0x0452, 0x052F}, + {0x0531, 0x0556}, {0x0559, 0x058A}, {0x058D, 0x058F}, + {0x0591, 0x05C7}, {0x05D0, 0x05EA}, {0x05EF, 0x05F4}, + {0x0600, 0x061C}, {0x061E, 0x070D}, {0x070F, 0x074A}, + {0x074D, 0x07B1}, {0x07C0, 0x07FA}, {0x07FD, 0x082D}, + {0x0830, 0x083E}, {0x0840, 0x085B}, {0x085E, 0x085E}, + {0x0860, 0x086A}, {0x08A0, 0x08B4}, {0x08B6, 0x08BD}, + {0x08D3, 0x0983}, {0x0985, 0x098C}, {0x098F, 0x0990}, + {0x0993, 0x09A8}, {0x09AA, 0x09B0}, {0x09B2, 0x09B2}, + {0x09B6, 0x09B9}, {0x09BC, 0x09C4}, {0x09C7, 0x09C8}, + {0x09CB, 0x09CE}, {0x09D7, 0x09D7}, {0x09DC, 0x09DD}, + {0x09DF, 0x09E3}, {0x09E6, 0x09FE}, {0x0A01, 0x0A03}, + {0x0A05, 0x0A0A}, {0x0A0F, 0x0A10}, {0x0A13, 0x0A28}, + {0x0A2A, 0x0A30}, {0x0A32, 0x0A33}, {0x0A35, 0x0A36}, + {0x0A38, 0x0A39}, {0x0A3C, 0x0A3C}, {0x0A3E, 0x0A42}, + {0x0A47, 0x0A48}, {0x0A4B, 0x0A4D}, {0x0A51, 0x0A51}, + {0x0A59, 0x0A5C}, {0x0A5E, 0x0A5E}, {0x0A66, 0x0A76}, + {0x0A81, 0x0A83}, {0x0A85, 0x0A8D}, {0x0A8F, 0x0A91}, + {0x0A93, 0x0AA8}, {0x0AAA, 0x0AB0}, {0x0AB2, 0x0AB3}, + {0x0AB5, 0x0AB9}, {0x0ABC, 0x0AC5}, {0x0AC7, 0x0AC9}, + {0x0ACB, 0x0ACD}, {0x0AD0, 0x0AD0}, {0x0AE0, 0x0AE3}, + {0x0AE6, 0x0AF1}, {0x0AF9, 0x0AFF}, {0x0B01, 0x0B03}, + {0x0B05, 0x0B0C}, {0x0B0F, 0x0B10}, {0x0B13, 0x0B28}, + {0x0B2A, 0x0B30}, {0x0B32, 0x0B33}, {0x0B35, 0x0B39}, + {0x0B3C, 0x0B44}, {0x0B47, 0x0B48}, {0x0B4B, 0x0B4D}, + {0x0B56, 0x0B57}, {0x0B5C, 0x0B5D}, {0x0B5F, 0x0B63}, + {0x0B66, 0x0B77}, {0x0B82, 0x0B83}, {0x0B85, 0x0B8A}, + {0x0B8E, 0x0B90}, {0x0B92, 0x0B95}, {0x0B99, 0x0B9A}, + {0x0B9C, 0x0B9C}, {0x0B9E, 0x0B9F}, {0x0BA3, 0x0BA4}, + {0x0BA8, 0x0BAA}, {0x0BAE, 0x0BB9}, {0x0BBE, 0x0BC2}, + {0x0BC6, 0x0BC8}, {0x0BCA, 0x0BCD}, {0x0BD0, 0x0BD0}, + {0x0BD7, 0x0BD7}, {0x0BE6, 0x0BFA}, {0x0C00, 0x0C0C}, + {0x0C0E, 0x0C10}, {0x0C12, 0x0C28}, {0x0C2A, 0x0C39}, + {0x0C3D, 0x0C44}, {0x0C46, 0x0C48}, {0x0C4A, 0x0C4D}, + {0x0C55, 0x0C56}, {0x0C58, 0x0C5A}, {0x0C60, 0x0C63}, + {0x0C66, 0x0C6F}, {0x0C77, 0x0C8C}, {0x0C8E, 0x0C90}, + {0x0C92, 0x0CA8}, {0x0CAA, 0x0CB3}, {0x0CB5, 0x0CB9}, + {0x0CBC, 0x0CC4}, {0x0CC6, 0x0CC8}, {0x0CCA, 0x0CCD}, + {0x0CD5, 0x0CD6}, {0x0CDE, 0x0CDE}, {0x0CE0, 0x0CE3}, + {0x0CE6, 0x0CEF}, {0x0CF1, 0x0CF2}, {0x0D00, 0x0D03}, + {0x0D05, 0x0D0C}, {0x0D0E, 0x0D10}, {0x0D12, 0x0D44}, + {0x0D46, 0x0D48}, {0x0D4A, 0x0D4F}, {0x0D54, 0x0D63}, + {0x0D66, 0x0D7F}, {0x0D82, 0x0D83}, {0x0D85, 0x0D96}, + {0x0D9A, 0x0DB1}, {0x0DB3, 0x0DBB}, {0x0DBD, 0x0DBD}, + {0x0DC0, 0x0DC6}, {0x0DCA, 0x0DCA}, {0x0DCF, 0x0DD4}, + {0x0DD6, 0x0DD6}, {0x0DD8, 0x0DDF}, {0x0DE6, 0x0DEF}, + {0x0DF2, 0x0DF4}, {0x0E01, 0x0E3A}, {0x0E3F, 0x0E5B}, + {0x0E81, 0x0E82}, {0x0E84, 0x0E84}, {0x0E86, 0x0E8A}, + {0x0E8C, 0x0EA3}, {0x0EA5, 0x0EA5}, {0x0EA7, 0x0EBD}, + {0x0EC0, 0x0EC4}, {0x0EC6, 0x0EC6}, {0x0EC8, 0x0ECD}, + {0x0ED0, 0x0ED9}, {0x0EDC, 0x0EDF}, {0x0F00, 0x0F47}, + {0x0F49, 0x0F6C}, {0x0F71, 0x0F97}, {0x0F99, 0x0FBC}, + {0x0FBE, 0x0FCC}, {0x0FCE, 0x0FDA}, {0x1000, 0x10C5}, + {0x10C7, 0x10C7}, {0x10CD, 0x10CD}, {0x10D0, 0x10FF}, + {0x1160, 0x1248}, {0x124A, 0x124D}, {0x1250, 0x1256}, + {0x1258, 0x1258}, {0x125A, 0x125D}, {0x1260, 0x1288}, + {0x128A, 0x128D}, {0x1290, 0x12B0}, {0x12B2, 0x12B5}, + 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{0x1EE3B, 0x1EE3B}, {0x1EE42, 0x1EE42}, + {0x1EE47, 0x1EE47}, {0x1EE49, 0x1EE49}, {0x1EE4B, 0x1EE4B}, + {0x1EE4D, 0x1EE4F}, {0x1EE51, 0x1EE52}, {0x1EE54, 0x1EE54}, + {0x1EE57, 0x1EE57}, {0x1EE59, 0x1EE59}, {0x1EE5B, 0x1EE5B}, + {0x1EE5D, 0x1EE5D}, {0x1EE5F, 0x1EE5F}, {0x1EE61, 0x1EE62}, + {0x1EE64, 0x1EE64}, {0x1EE67, 0x1EE6A}, {0x1EE6C, 0x1EE72}, + {0x1EE74, 0x1EE77}, {0x1EE79, 0x1EE7C}, {0x1EE7E, 0x1EE7E}, + {0x1EE80, 0x1EE89}, {0x1EE8B, 0x1EE9B}, {0x1EEA1, 0x1EEA3}, + {0x1EEA5, 0x1EEA9}, {0x1EEAB, 0x1EEBB}, {0x1EEF0, 0x1EEF1}, + {0x1F000, 0x1F003}, {0x1F005, 0x1F02B}, {0x1F030, 0x1F093}, + {0x1F0A0, 0x1F0AE}, {0x1F0B1, 0x1F0BF}, {0x1F0C1, 0x1F0CE}, + {0x1F0D1, 0x1F0F5}, {0x1F10B, 0x1F10C}, {0x1F12E, 0x1F12F}, + {0x1F16A, 0x1F16C}, {0x1F1E6, 0x1F1FF}, {0x1F321, 0x1F32C}, + {0x1F336, 0x1F336}, {0x1F37D, 0x1F37D}, {0x1F394, 0x1F39F}, + {0x1F3CB, 0x1F3CE}, {0x1F3D4, 0x1F3DF}, {0x1F3F1, 0x1F3F3}, + {0x1F3F5, 0x1F3F7}, {0x1F43F, 0x1F43F}, {0x1F441, 0x1F441}, + {0x1F4FD, 0x1F4FE}, {0x1F53E, 0x1F54A}, {0x1F54F, 0x1F54F}, + {0x1F568, 0x1F579}, {0x1F57B, 0x1F594}, {0x1F597, 0x1F5A3}, + {0x1F5A5, 0x1F5FA}, {0x1F650, 0x1F67F}, {0x1F6C6, 0x1F6CB}, + {0x1F6CD, 0x1F6CF}, {0x1F6D3, 0x1F6D4}, {0x1F6E0, 0x1F6EA}, + {0x1F6F0, 0x1F6F3}, {0x1F700, 0x1F773}, {0x1F780, 0x1F7D8}, + {0x1F800, 0x1F80B}, {0x1F810, 0x1F847}, {0x1F850, 0x1F859}, + {0x1F860, 0x1F887}, {0x1F890, 0x1F8AD}, {0x1F900, 0x1F90B}, + {0x1FA00, 0x1FA53}, {0x1FA60, 0x1FA6D}, {0xE0001, 0xE0001}, + {0xE0020, 0xE007F}, +} + +var emoji = table{ + {0x203C, 0x203C}, {0x2049, 0x2049}, {0x2122, 0x2122}, + {0x2139, 0x2139}, {0x2194, 0x2199}, {0x21A9, 0x21AA}, + {0x231A, 0x231B}, {0x2328, 0x2328}, {0x2388, 0x2388}, + {0x23CF, 0x23CF}, {0x23E9, 0x23F3}, {0x23F8, 0x23FA}, + {0x24C2, 0x24C2}, {0x25AA, 0x25AB}, {0x25B6, 0x25B6}, + {0x25C0, 0x25C0}, {0x25FB, 0x25FE}, {0x2600, 0x2605}, + {0x2607, 0x2612}, {0x2614, 0x2685}, {0x2690, 0x2705}, + {0x2708, 0x2712}, {0x2714, 0x2714}, {0x2716, 0x2716}, + {0x271D, 0x271D}, {0x2721, 0x2721}, {0x2728, 0x2728}, + {0x2733, 0x2734}, {0x2744, 0x2744}, {0x2747, 0x2747}, + {0x274C, 0x274C}, {0x274E, 0x274E}, {0x2753, 0x2755}, + {0x2757, 0x2757}, {0x2763, 0x2767}, {0x2795, 0x2797}, + {0x27A1, 0x27A1}, {0x27B0, 0x27B0}, {0x27BF, 0x27BF}, + {0x2934, 0x2935}, {0x2B05, 0x2B07}, {0x2B1B, 0x2B1C}, + {0x2B50, 0x2B50}, {0x2B55, 0x2B55}, {0x3030, 0x3030}, + {0x303D, 0x303D}, {0x3297, 0x3297}, {0x3299, 0x3299}, + {0x1F000, 0x1F0FF}, {0x1F10D, 0x1F10F}, {0x1F12F, 0x1F12F}, + {0x1F16C, 0x1F171}, {0x1F17E, 0x1F17F}, {0x1F18E, 0x1F18E}, + {0x1F191, 0x1F19A}, {0x1F1AD, 0x1F1E5}, {0x1F201, 0x1F20F}, + {0x1F21A, 0x1F21A}, {0x1F22F, 0x1F22F}, {0x1F232, 0x1F23A}, + {0x1F23C, 0x1F23F}, {0x1F249, 0x1F3FA}, {0x1F400, 0x1F53D}, + {0x1F546, 0x1F64F}, {0x1F680, 0x1F6FF}, {0x1F774, 0x1F77F}, + {0x1F7D5, 0x1F7FF}, {0x1F80C, 0x1F80F}, {0x1F848, 0x1F84F}, + {0x1F85A, 0x1F85F}, {0x1F888, 0x1F88F}, {0x1F8AE, 0x1F8FF}, + {0x1F90C, 0x1F93A}, {0x1F93C, 0x1F945}, {0x1F947, 0x1FFFD}, +} diff --git a/vendor/github.com/mattn/go-runewidth/runewidth_windows.go b/vendor/github.com/mattn/go-runewidth/runewidth_windows.go new file mode 100644 index 000000000..d6a61777d --- /dev/null +++ b/vendor/github.com/mattn/go-runewidth/runewidth_windows.go @@ -0,0 +1,28 @@ +// +build windows +// +build !appengine + +package runewidth + +import ( + "syscall" +) + +var ( + kernel32 = syscall.NewLazyDLL("kernel32") + procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP") +) + +// IsEastAsian return true if the current locale is CJK +func IsEastAsian() bool { + r1, _, _ := procGetConsoleOutputCP.Call() + if r1 == 0 { + return false + } + + switch int(r1) { + case 932, 51932, 936, 949, 950: + return true + } + + return false +} diff --git a/vendor/github.com/mgechev/dots/.travis.yml b/vendor/github.com/mgechev/dots/.travis.yml new file mode 100644 index 000000000..f4a4a7363 --- /dev/null +++ b/vendor/github.com/mgechev/dots/.travis.yml @@ -0,0 +1,2 @@ +language: go +go: master diff --git a/vendor/github.com/mgechev/dots/LICENSE b/vendor/github.com/mgechev/dots/LICENSE new file mode 100644 index 000000000..c617c7e01 --- /dev/null +++ b/vendor/github.com/mgechev/dots/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2018 Minko Gechev + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/mgechev/dots/README.md b/vendor/github.com/mgechev/dots/README.md new file mode 100644 index 000000000..1203aef5f --- /dev/null +++ b/vendor/github.com/mgechev/dots/README.md @@ -0,0 +1,100 @@ +[![Build Status](https://travis-ci.org/mgechev/dots.svg?branch=master)](https://travis-ci.org/mgechev/dots) + +# Dots + +Implements the wildcard file matching in Go used by golint, go test etc. + +## Usage + +```go +import "github.com/mgechev/dots" + +func main() { + result, err := dots.Resolve([]string{"./fixtures/..."}, []string{"./fixtures/foo"}) + for _, f := range result { + fmt.Println(f); + } +} +``` + +If we suppose that we have the following directory structure: + +```text +├── README.md +├── fixtures +│   ├── bar +│   │   ├── bar1.go +│   │   └── bar2.go +│   ├── baz +│   │   ├── baz1.go +│   │   ├── baz2.go +│   │   └── baz3.go +│   └── foo +│   ├── foo1.go +│   ├── foo2.go +│   └── foo3.go +└── main.go +``` + +The result will be: + +```text +fixtures/bar/bar1.go +fixtures/bar/bar2.go +fixtures/baz/baz1.go +fixtures/baz/baz2.go +fixtures/baz/baz3.go +``` + +`dots` supports wildcard in both - the first and the last argument of `Resolve`, which means that you can ignore files based on a wildcard: + +```go +dots.Resolve([]string{"github.com/mgechev/dots"}, []string{"./..."}) // empty list +dots.Resolve([]string{"./fixtures/bar/..."}, []string{"./fixture/foo/...", "./fixtures/baz/..."}) // bar1.go, bar2.go +``` + +## Preserve package structure + +`dots` allow you to receive a slice of slices where each nested slice represents an individual package: + +```go +dots.ResolvePackages([]string{"github.com/mgechev/dots/..."}, []string{}) +``` + +So we will get the result: + +```text +[ + [ + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/bar/bar1.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/bar/bar2.go" + ], + [ + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/baz/baz1.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/baz/baz2.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/baz/baz3.go" + ], + [ + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/foo/foo1.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/foo/foo2.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/dummy/foo/foo3.go" + ], + [ + "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/baz/baz1.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/baz/baz2.go" + ], + [ + "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/foo/foo1.go", + "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/foo/foo2.go" + ], + [ + "$GOROOT/src/github.com/mgechev/dots/fixtures/pkg/foo/bar/bar1.go" + ] +] +``` + +This method is especially useful, when you want to perform type checking over given package from the result. + +## License + +MIT diff --git a/vendor/github.com/mgechev/dots/resolve.go b/vendor/github.com/mgechev/dots/resolve.go new file mode 100644 index 000000000..309ba18ad --- /dev/null +++ b/vendor/github.com/mgechev/dots/resolve.go @@ -0,0 +1,456 @@ +package dots + +import ( + "go/build" + "log" + "os" + "path" + "path/filepath" + "regexp" + "runtime" + "strings" +) + +var ( + buildContext = build.Default + goroot = filepath.Clean(runtime.GOROOT()) + gorootSrc = filepath.Join(goroot, "src") +) + +func flatten(arr [][]string) []string { + var res []string + for _, e := range arr { + res = append(res, e...) + } + return res +} + +// Resolve accepts a slice of paths with optional "..." placeholder and a slice with paths to be skipped. +// The final result is the set of all files from the selected directories subtracted with +// the files in the skip slice. +func Resolve(includePatterns, skipPatterns []string) ([]string, error) { + skip, err := resolvePatterns(skipPatterns) + filter := newPathFilter(flatten(skip)) + if err != nil { + return nil, err + } + + pathSet := map[string]bool{} + includePackages, err := resolvePatterns(includePatterns) + include := flatten(includePackages) + if err != nil { + return nil, err + } + + var result []string + for _, i := range include { + if _, ok := pathSet[i]; !ok && !filter(i) { + pathSet[i] = true + result = append(result, i) + } + } + return result, err +} + +// ResolvePackages accepts a slice of paths with optional "..." placeholder and a slice with paths to be skipped. +// The final result is the set of all files from the selected directories subtracted with +// the files in the skip slice. The difference between `Resolve` and `ResolvePackages` +// is that `ResolvePackages` preserves the package structure in the nested slices. +func ResolvePackages(includePatterns, skipPatterns []string) ([][]string, error) { + skip, err := resolvePatterns(skipPatterns) + filter := newPathFilter(flatten(skip)) + if err != nil { + return nil, err + } + + pathSet := map[string]bool{} + include, err := resolvePatterns(includePatterns) + if err != nil { + return nil, err + } + + var result [][]string + for _, p := range include { + var packageFiles []string + for _, f := range p { + if _, ok := pathSet[f]; !ok && !filter(f) { + pathSet[f] = true + packageFiles = append(packageFiles, f) + } + } + result = append(result, packageFiles) + } + return result, err +} + +func isDir(filename string) bool { + fi, err := os.Stat(filename) + return err == nil && fi.IsDir() +} + +func exists(filename string) bool { + _, err := os.Stat(filename) + return err == nil +} + +func resolveDir(dirname string) ([]string, error) { + pkg, err := build.ImportDir(dirname, 0) + return resolveImportedPackage(pkg, err) +} + +func resolvePackage(pkgname string) ([]string, error) { + pkg, err := build.Import(pkgname, ".", 0) + return resolveImportedPackage(pkg, err) +} + +func resolveImportedPackage(pkg *build.Package, err error) ([]string, error) { + if err != nil { + if _, nogo := err.(*build.NoGoError); nogo { + // Don't complain if the failure is due to no Go source files. + return nil, nil + } + return nil, err + } + + var files []string + files = append(files, pkg.GoFiles...) + files = append(files, pkg.CgoFiles...) + files = append(files, pkg.TestGoFiles...) + if pkg.Dir != "." { + for i, f := range files { + files[i] = filepath.Join(pkg.Dir, f) + } + } + return files, nil +} + +func resolvePatterns(patterns []string) ([][]string, error) { + var files [][]string + for _, pattern := range patterns { + f, err := resolvePattern(pattern) + if err != nil { + return nil, err + } + files = append(files, f...) + } + return files, nil +} + +func resolvePattern(pattern string) ([][]string, error) { + // dirsRun, filesRun, and pkgsRun indicate whether golint is applied to + // directory, file or package targets. The distinction affects which + // checks are run. It is no valid to mix target types. + var dirsRun, filesRun, pkgsRun int + var matches []string + + if strings.HasSuffix(pattern, "/...") && isDir(pattern[:len(pattern)-len("/...")]) { + dirsRun = 1 + for _, dirname := range matchPackagesInFS(pattern) { + matches = append(matches, dirname) + } + } else if isDir(pattern) { + dirsRun = 1 + matches = append(matches, pattern) + } else if exists(pattern) { + filesRun = 1 + matches = append(matches, pattern) + } else { + pkgsRun = 1 + matches = append(matches, pattern) + } + + result := [][]string{} + switch { + case dirsRun == 1: + for _, dir := range matches { + res, err := resolveDir(dir) + if err != nil { + return nil, err + } + result = append(result, res) + } + case filesRun == 1: + return [][]string{matches}, nil + case pkgsRun == 1: + for _, pkg := range importPaths(matches) { + res, err := resolvePackage(pkg) + if err != nil { + return nil, err + } + result = append(result, res) + } + } + return result, nil +} + +func newPathFilter(skip []string) func(string) bool { + filter := map[string]bool{} + for _, name := range skip { + filter[name] = true + } + + return func(path string) bool { + base := filepath.Base(path) + if filter[base] || filter[path] { + return true + } + return base != "." && base != ".." && strings.ContainsAny(base[0:1], "_.") + } +} + +// importPathsNoDotExpansion returns the import paths to use for the given +// command line, but it does no ... expansion. +func importPathsNoDotExpansion(args []string) []string { + if len(args) == 0 { + return []string{"."} + } + var out []string + for _, a := range args { + // Arguments are supposed to be import paths, but + // as a courtesy to Windows developers, rewrite \ to / + // in command-line arguments. Handles .\... and so on. + if filepath.Separator == '\\' { + a = strings.Replace(a, `\`, `/`, -1) + } + + // Put argument in canonical form, but preserve leading ./. + if strings.HasPrefix(a, "./") { + a = "./" + path.Clean(a) + if a == "./." { + a = "." + } + } else { + a = path.Clean(a) + } + if a == "all" || a == "std" { + out = append(out, matchPackages(a)...) + continue + } + out = append(out, a) + } + return out +} + +// importPaths returns the import paths to use for the given command line. +func importPaths(args []string) []string { + args = importPathsNoDotExpansion(args) + var out []string + for _, a := range args { + if strings.Contains(a, "...") { + if build.IsLocalImport(a) { + out = append(out, matchPackagesInFS(a)...) + } else { + out = append(out, matchPackages(a)...) + } + continue + } + out = append(out, a) + } + return out +} + +// matchPattern(pattern)(name) reports whether +// name matches pattern. Pattern is a limited glob +// pattern in which '...' means 'any string' and there +// is no other special syntax. +func matchPattern(pattern string) func(name string) bool { + re := regexp.QuoteMeta(pattern) + re = strings.Replace(re, `\.\.\.`, `.*`, -1) + // Special case: foo/... matches foo too. + if strings.HasSuffix(re, `/.*`) { + re = re[:len(re)-len(`/.*`)] + `(/.*)?` + } + reg := regexp.MustCompile(`^` + re + `$`) + return func(name string) bool { + return reg.MatchString(name) + } +} + +// hasPathPrefix reports whether the path s begins with the +// elements in prefix. +func hasPathPrefix(s, prefix string) bool { + switch { + default: + return false + case len(s) == len(prefix): + return s == prefix + case len(s) > len(prefix): + if prefix != "" && prefix[len(prefix)-1] == '/' { + return strings.HasPrefix(s, prefix) + } + return s[len(prefix)] == '/' && s[:len(prefix)] == prefix + } +} + +// treeCanMatchPattern(pattern)(name) reports whether +// name or children of name can possibly match pattern. +// Pattern is the same limited glob accepted by matchPattern. +func treeCanMatchPattern(pattern string) func(name string) bool { + wildCard := false + if i := strings.Index(pattern, "..."); i >= 0 { + wildCard = true + pattern = pattern[:i] + } + return func(name string) bool { + return len(name) <= len(pattern) && hasPathPrefix(pattern, name) || + wildCard && strings.HasPrefix(name, pattern) + } +} + +func matchPackages(pattern string) []string { + match := func(string) bool { return true } + treeCanMatch := func(string) bool { return true } + if pattern != "all" && pattern != "std" { + match = matchPattern(pattern) + treeCanMatch = treeCanMatchPattern(pattern) + } + + have := map[string]bool{ + "builtin": true, // ignore pseudo-package that exists only for documentation + } + if !buildContext.CgoEnabled { + have["runtime/cgo"] = true // ignore during walk + } + var pkgs []string + + // Commands + cmd := filepath.Join(goroot, "src/cmd") + string(filepath.Separator) + filepath.Walk(cmd, func(path string, fi os.FileInfo, err error) error { + if err != nil || !fi.IsDir() || path == cmd { + return nil + } + name := path[len(cmd):] + if !treeCanMatch(name) { + return filepath.SkipDir + } + // Commands are all in cmd/, not in subdirectories. + if strings.Contains(name, string(filepath.Separator)) { + return filepath.SkipDir + } + + // We use, e.g., cmd/gofmt as the pseudo import path for gofmt. + name = "cmd/" + name + if have[name] { + return nil + } + have[name] = true + if !match(name) { + return nil + } + _, err = buildContext.ImportDir(path, 0) + if err != nil { + if _, noGo := err.(*build.NoGoError); !noGo { + log.Print(err) + } + return nil + } + pkgs = append(pkgs, name) + return nil + }) + + for _, src := range buildContext.SrcDirs() { + if (pattern == "std" || pattern == "cmd") && src != gorootSrc { + continue + } + src = filepath.Clean(src) + string(filepath.Separator) + root := src + if pattern == "cmd" { + root += "cmd" + string(filepath.Separator) + } + filepath.Walk(root, func(path string, fi os.FileInfo, err error) error { + if err != nil || !fi.IsDir() || path == src { + return nil + } + + // Avoid .foo, _foo, and testdata directory trees. + _, elem := filepath.Split(path) + if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" { + return filepath.SkipDir + } + + name := filepath.ToSlash(path[len(src):]) + if pattern == "std" && (strings.Contains(name, ".") || name == "cmd") { + // The name "std" is only the standard library. + // If the name is cmd, it's the root of the command tree. + return filepath.SkipDir + } + if !treeCanMatch(name) { + return filepath.SkipDir + } + if have[name] { + return nil + } + have[name] = true + if !match(name) { + return nil + } + _, err = buildContext.ImportDir(path, 0) + if err != nil { + if _, noGo := err.(*build.NoGoError); noGo { + return nil + } + } + pkgs = append(pkgs, name) + return nil + }) + } + return pkgs +} + +func matchPackagesInFS(pattern string) []string { + // Find directory to begin the scan. + // Could be smarter but this one optimization + // is enough for now, since ... is usually at the + // end of a path. + i := strings.Index(pattern, "...") + dir, _ := path.Split(pattern[:i]) + + // pattern begins with ./ or ../. + // path.Clean will discard the ./ but not the ../. + // We need to preserve the ./ for pattern matching + // and in the returned import paths. + prefix := "" + if strings.HasPrefix(pattern, "./") { + prefix = "./" + } + match := matchPattern(pattern) + + var pkgs []string + filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error { + if err != nil || !fi.IsDir() { + return nil + } + if path == dir { + // filepath.Walk starts at dir and recurses. For the recursive case, + // the path is the result of filepath.Join, which calls filepath.Clean. + // The initial case is not Cleaned, though, so we do this explicitly. + // + // This converts a path like "./io/" to "io". Without this step, running + // "cd $GOROOT/src/pkg; go list ./io/..." would incorrectly skip the io + // package, because prepending the prefix "./" to the unclean path would + // result in "././io", and match("././io") returns false. + path = filepath.Clean(path) + } + + // Avoid .foo, _foo, and testdata directory trees, but do not avoid "." or "..". + _, elem := filepath.Split(path) + dot := strings.HasPrefix(elem, ".") && elem != "." && elem != ".." + if dot || strings.HasPrefix(elem, "_") || elem == "testdata" { + return filepath.SkipDir + } + + name := prefix + filepath.ToSlash(path) + if !match(name) { + return nil + } + if _, err = build.ImportDir(path, 0); err != nil { + if _, noGo := err.(*build.NoGoError); !noGo { + log.Print(err) + } + return nil + } + pkgs = append(pkgs, name) + return nil + }) + return pkgs +} diff --git a/vendor/github.com/mgechev/revive/LICENSE b/vendor/github.com/mgechev/revive/LICENSE new file mode 100644 index 000000000..c617c7e01 --- /dev/null +++ b/vendor/github.com/mgechev/revive/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2018 Minko Gechev + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/mgechev/revive/formatter/checkstyle.go b/vendor/github.com/mgechev/revive/formatter/checkstyle.go new file mode 100644 index 000000000..bd20da888 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/checkstyle.go @@ -0,0 +1,76 @@ +package formatter + +import ( + "bytes" + "encoding/xml" + "github.com/mgechev/revive/lint" + plainTemplate "text/template" +) + +// Checkstyle is an implementation of the Formatter interface +// which formats the errors to Checkstyle-like format. +type Checkstyle struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *Checkstyle) Name() string { + return "checkstyle" +} + +type issue struct { + Line int + Col int + What string + Confidence float64 + Severity lint.Severity + RuleName string +} + +// Format formats the failures gotten from the lint. +func (f *Checkstyle) Format(failures <-chan lint.Failure, config lint.Config) (string, error) { + var issues = map[string][]issue{} + for failure := range failures { + buf := new(bytes.Buffer) + xml.Escape(buf, []byte(failure.Failure)) + what := buf.String() + iss := issue{ + Line: failure.Position.Start.Line, + Col: failure.Position.Start.Column, + What: what, + Confidence: failure.Confidence, + Severity: severity(config, failure), + RuleName: failure.RuleName, + } + fn := failure.GetFilename() + if issues[fn] == nil { + issues[fn] = make([]issue, 0) + } + issues[fn] = append(issues[fn], iss) + } + + t, err := plainTemplate.New("revive").Parse(checkstyleTemplate) + if err != nil { + return "", err + } + + buf := new(bytes.Buffer) + + err = t.Execute(buf, issues) + if err != nil { + return "", err + } + + return buf.String(), nil +} + +const checkstyleTemplate = ` + +{{- range $k, $v := . }} + + {{- range $i, $issue := $v }} + + {{- end }} + +{{- end }} +` diff --git a/vendor/github.com/mgechev/revive/formatter/default.go b/vendor/github.com/mgechev/revive/formatter/default.go new file mode 100644 index 000000000..145e6d548 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/default.go @@ -0,0 +1,26 @@ +package formatter + +import ( + "fmt" + + "github.com/mgechev/revive/lint" +) + +// Default is an implementation of the Formatter interface +// which formats the errors to text. +type Default struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *Default) Name() string { + return "default" +} + +// Format formats the failures gotten from the lint. +func (f *Default) Format(failures <-chan lint.Failure, _ lint.Config) (string, error) { + for failure := range failures { + fmt.Printf("%v: %s\n", failure.Position.Start, failure.Failure) + } + return "", nil +} diff --git a/vendor/github.com/mgechev/revive/formatter/friendly.go b/vendor/github.com/mgechev/revive/formatter/friendly.go new file mode 100644 index 000000000..a543eebe0 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/friendly.go @@ -0,0 +1,146 @@ +package formatter + +import ( + "bytes" + "fmt" + "sort" + + "github.com/fatih/color" + "github.com/mgechev/revive/lint" + "github.com/olekukonko/tablewriter" +) + +var ( + errorEmoji = color.RedString("✘") + warningEmoji = color.YellowString("⚠") +) + +var newLines = map[rune]bool{ + 0x000A: true, + 0x000B: true, + 0x000C: true, + 0x000D: true, + 0x0085: true, + 0x2028: true, + 0x2029: true, +} + +// Friendly is an implementation of the Formatter interface +// which formats the errors to JSON. +type Friendly struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *Friendly) Name() string { + return "friendly" +} + +// Format formats the failures gotten from the lint. +func (f *Friendly) Format(failures <-chan lint.Failure, config lint.Config) (string, error) { + errorMap := map[string]int{} + warningMap := map[string]int{} + totalErrors := 0 + totalWarnings := 0 + for failure := range failures { + sev := severity(config, failure) + f.printFriendlyFailure(failure, sev) + if sev == lint.SeverityWarning { + warningMap[failure.RuleName] = warningMap[failure.RuleName] + 1 + totalWarnings++ + } + if sev == lint.SeverityError { + errorMap[failure.RuleName] = errorMap[failure.RuleName] + 1 + totalErrors++ + } + } + f.printSummary(totalErrors, totalWarnings) + f.printStatistics(color.RedString("Errors:"), errorMap) + f.printStatistics(color.YellowString("Warnings:"), warningMap) + return "", nil +} + +func (f *Friendly) printFriendlyFailure(failure lint.Failure, severity lint.Severity) { + f.printHeaderRow(failure, severity) + f.printFilePosition(failure) + fmt.Println() + fmt.Println() +} + +func (f *Friendly) printHeaderRow(failure lint.Failure, severity lint.Severity) { + emoji := warningEmoji + if severity == lint.SeverityError { + emoji = errorEmoji + } + fmt.Print(f.table([][]string{{emoji, "https://revive.run/r#" + failure.RuleName, color.GreenString(failure.Failure)}})) +} + +func (f *Friendly) printFilePosition(failure lint.Failure) { + fmt.Printf(" %s:%d:%d", failure.GetFilename(), failure.Position.Start.Line, failure.Position.Start.Column) +} + +type statEntry struct { + name string + failures int +} + +func (f *Friendly) printSummary(errors, warnings int) { + emoji := warningEmoji + if errors > 0 { + emoji = errorEmoji + } + problemsLabel := "problems" + if errors+warnings == 1 { + problemsLabel = "problem" + } + warningsLabel := "warnings" + if warnings == 1 { + warningsLabel = "warning" + } + errorsLabel := "errors" + if errors == 1 { + errorsLabel = "error" + } + str := fmt.Sprintf("%d %s (%d %s, %d %s)", errors+warnings, problemsLabel, errors, errorsLabel, warnings, warningsLabel) + if errors > 0 { + fmt.Printf("%s %s\n", emoji, color.RedString(str)) + fmt.Println() + return + } + if warnings > 0 { + fmt.Printf("%s %s\n", emoji, color.YellowString(str)) + fmt.Println() + return + } +} + +func (f *Friendly) printStatistics(header string, stats map[string]int) { + if len(stats) == 0 { + return + } + var data []statEntry + for name, total := range stats { + data = append(data, statEntry{name, total}) + } + sort.Slice(data, func(i, j int) bool { + return data[i].failures > data[j].failures + }) + formatted := [][]string{} + for _, entry := range data { + formatted = append(formatted, []string{color.GreenString(fmt.Sprintf("%d", entry.failures)), entry.name}) + } + fmt.Println(header) + fmt.Println(f.table(formatted)) +} + +func (f *Friendly) table(rows [][]string) string { + buf := new(bytes.Buffer) + table := tablewriter.NewWriter(buf) + table.SetBorder(false) + table.SetColumnSeparator("") + table.SetRowSeparator("") + table.SetAutoWrapText(false) + table.AppendBulk(rows) + table.Render() + return buf.String() +} diff --git a/vendor/github.com/mgechev/revive/formatter/json.go b/vendor/github.com/mgechev/revive/formatter/json.go new file mode 100644 index 000000000..9c939face --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/json.go @@ -0,0 +1,40 @@ +package formatter + +import ( + "encoding/json" + + "github.com/mgechev/revive/lint" +) + +// JSON is an implementation of the Formatter interface +// which formats the errors to JSON. +type JSON struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *JSON) Name() string { + return "json" +} + +// jsonObject defines a JSON object of an failure +type jsonObject struct { + Severity lint.Severity + lint.Failure `json:",inline"` +} + +// Format formats the failures gotten from the lint. +func (f *JSON) Format(failures <-chan lint.Failure, config lint.Config) (string, error) { + var slice []jsonObject + for failure := range failures { + obj := jsonObject{} + obj.Severity = severity(config, failure) + obj.Failure = failure + slice = append(slice, obj) + } + result, err := json.Marshal(slice) + if err != nil { + return "", err + } + return string(result), err +} diff --git a/vendor/github.com/mgechev/revive/formatter/ndjson.go b/vendor/github.com/mgechev/revive/formatter/ndjson.go new file mode 100644 index 000000000..aa2b1d636 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/ndjson.go @@ -0,0 +1,34 @@ +package formatter + +import ( + "encoding/json" + "os" + + "github.com/mgechev/revive/lint" +) + +// NDJSON is an implementation of the Formatter interface +// which formats the errors to NDJSON stream. +type NDJSON struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *NDJSON) Name() string { + return "ndjson" +} + +// Format formats the failures gotten from the lint. +func (f *NDJSON) Format(failures <-chan lint.Failure, config lint.Config) (string, error) { + enc := json.NewEncoder(os.Stdout) + for failure := range failures { + obj := jsonObject{} + obj.Severity = severity(config, failure) + obj.Failure = failure + err := enc.Encode(obj) + if err != nil { + return "", err + } + } + return "", nil +} diff --git a/vendor/github.com/mgechev/revive/formatter/plain.go b/vendor/github.com/mgechev/revive/formatter/plain.go new file mode 100644 index 000000000..a854d2562 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/plain.go @@ -0,0 +1,26 @@ +package formatter + +import ( + "fmt" + + "github.com/mgechev/revive/lint" +) + +// Plain is an implementation of the Formatter interface +// which formats the errors to JSON. +type Plain struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *Plain) Name() string { + return "plain" +} + +// Format formats the failures gotten from the lint. +func (f *Plain) Format(failures <-chan lint.Failure, _ lint.Config) (string, error) { + for failure := range failures { + fmt.Printf("%v: %s %s\n", failure.Position.Start, failure.Failure, "https://revive.run/r#"+failure.RuleName) + } + return "", nil +} diff --git a/vendor/github.com/mgechev/revive/formatter/severity.go b/vendor/github.com/mgechev/revive/formatter/severity.go new file mode 100644 index 000000000..a43bf3192 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/severity.go @@ -0,0 +1,13 @@ +package formatter + +import "github.com/mgechev/revive/lint" + +func severity(config lint.Config, failure lint.Failure) lint.Severity { + if config, ok := config.Rules[failure.RuleName]; ok && config.Severity == lint.SeverityError { + return lint.SeverityError + } + if config, ok := config.Directives[failure.RuleName]; ok && config.Severity == lint.SeverityError { + return lint.SeverityError + } + return lint.SeverityWarning +} diff --git a/vendor/github.com/mgechev/revive/formatter/stylish.go b/vendor/github.com/mgechev/revive/formatter/stylish.go new file mode 100644 index 000000000..cd81fdae7 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/stylish.go @@ -0,0 +1,89 @@ +package formatter + +import ( + "bytes" + "fmt" + + "github.com/fatih/color" + "github.com/mgechev/revive/lint" + "github.com/olekukonko/tablewriter" +) + +// Stylish is an implementation of the Formatter interface +// which formats the errors to JSON. +type Stylish struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *Stylish) Name() string { + return "stylish" +} + +func formatFailure(failure lint.Failure, severity lint.Severity) []string { + fString := color.CyanString(failure.Failure) + fName := color.RedString("https://revive.run/r#" + failure.RuleName) + lineColumn := failure.Position + pos := fmt.Sprintf("(%d, %d)", lineColumn.Start.Line, lineColumn.Start.Column) + if severity == lint.SeverityWarning { + fName = color.YellowString("https://revive.run/r#" + failure.RuleName) + } + return []string{failure.GetFilename(), pos, fName, fString} +} + +// Format formats the failures gotten from the lint. +func (f *Stylish) Format(failures <-chan lint.Failure, config lint.Config) (string, error) { + var result [][]string + var totalErrors = 0 + var total = 0 + + for f := range failures { + total++ + currentType := severity(config, f) + if currentType == lint.SeverityError { + totalErrors++ + } + result = append(result, formatFailure(f, lint.Severity(currentType))) + } + ps := "problems" + if total == 1 { + ps = "problem" + } + + fileReport := make(map[string][][]string) + + for _, row := range result { + if _, ok := fileReport[row[0]]; !ok { + fileReport[row[0]] = [][]string{} + } + + fileReport[row[0]] = append(fileReport[row[0]], []string{row[1], row[2], row[3]}) + } + + output := "" + for filename, val := range fileReport { + buf := new(bytes.Buffer) + table := tablewriter.NewWriter(buf) + table.SetBorder(false) + table.SetColumnSeparator("") + table.SetRowSeparator("") + table.SetAutoWrapText(false) + table.AppendBulk(val) + table.Render() + c := color.New(color.Underline) + output += c.SprintfFunc()(filename + "\n") + output += buf.String() + "\n" + } + + suffix := fmt.Sprintf(" %d %s (%d errors) (%d warnings)", total, ps, totalErrors, total-totalErrors) + + if total > 0 && totalErrors > 0 { + suffix = color.RedString("\n ✖" + suffix) + } else if total > 0 && totalErrors == 0 { + suffix = color.YellowString("\n ✖" + suffix) + } else { + suffix, output = "", "" + } + + return output + suffix, nil +} diff --git a/vendor/github.com/mgechev/revive/formatter/unix.go b/vendor/github.com/mgechev/revive/formatter/unix.go new file mode 100644 index 000000000..b9ae62d38 --- /dev/null +++ b/vendor/github.com/mgechev/revive/formatter/unix.go @@ -0,0 +1,27 @@ +package formatter + +import ( + "fmt" + + "github.com/mgechev/revive/lint" +) + +// Unix is an implementation of the Formatter interface +// which formats the errors to a simple line based error format +// main.go:24:9: [errorf] should replace errors.New(fmt.Sprintf(...)) with fmt.Errorf(...) +type Unix struct { + Metadata lint.FormatterMetadata +} + +// Name returns the name of the formatter +func (f *Unix) Name() string { + return "unix" +} + +// Format formats the failures gotten from the lint. +func (f *Unix) Format(failures <-chan lint.Failure, _ lint.Config) (string, error) { + for failure := range failures { + fmt.Printf("%v: [%s] %s\n", failure.Position.Start, failure.RuleName, failure.Failure) + } + return "", nil +} diff --git a/vendor/github.com/mgechev/revive/lint/config.go b/vendor/github.com/mgechev/revive/lint/config.go new file mode 100644 index 000000000..fe65ace52 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/config.go @@ -0,0 +1,32 @@ +package lint + +// Arguments is type used for the arguments of a rule. +type Arguments = []interface{} + +// RuleConfig is type used for the rule configuration. +type RuleConfig struct { + Arguments Arguments + Severity Severity +} + +// RulesConfig defines the config for all rules. +type RulesConfig = map[string]RuleConfig + +// DirectiveConfig is type used for the linter directive configuration. +type DirectiveConfig struct { + Severity Severity +} + +// DirectivesConfig defines the config for all directives. +type DirectivesConfig = map[string]DirectiveConfig + +// Config defines the config of the linter. +type Config struct { + IgnoreGeneratedHeader bool `toml:"ignoreGeneratedHeader"` + Confidence float64 + Severity Severity + Rules RulesConfig `toml:"rule"` + ErrorCode int `toml:"errorCode"` + WarningCode int `toml:"warningCode"` + Directives DirectivesConfig `toml:"directive"` +} diff --git a/vendor/github.com/mgechev/revive/lint/failure.go b/vendor/github.com/mgechev/revive/lint/failure.go new file mode 100644 index 000000000..479b0cb48 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/failure.go @@ -0,0 +1,39 @@ +package lint + +import ( + "go/ast" + "go/token" +) + +const ( + // SeverityWarning declares failures of type warning + SeverityWarning = "warning" + // SeverityError declares failures of type error. + SeverityError = "error" +) + +// Severity is the type for the failure types. +type Severity string + +// FailurePosition returns the failure position +type FailurePosition struct { + Start token.Position + End token.Position +} + +// Failure defines a struct for a linting failure. +type Failure struct { + Failure string + RuleName string + Category string + Position FailurePosition + Node ast.Node `json:"-"` + Confidence float64 + // For future use + ReplacementLine string +} + +// GetFilename returns the filename. +func (f *Failure) GetFilename() string { + return f.Position.Start.Filename +} diff --git a/vendor/github.com/mgechev/revive/lint/file.go b/vendor/github.com/mgechev/revive/lint/file.go new file mode 100644 index 000000000..8bef9c220 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/file.go @@ -0,0 +1,278 @@ +package lint + +import ( + "bytes" + "go/ast" + "go/parser" + "go/printer" + "go/token" + "go/types" + "math" + "regexp" + "strings" +) + +// File abstraction used for representing files. +type File struct { + Name string + Pkg *Package + content []byte + AST *ast.File +} + +// IsTest returns if the file contains tests. +func (f *File) IsTest() bool { return strings.HasSuffix(f.Name, "_test.go") } + +// Content returns the file's content. +func (f *File) Content() []byte { + return f.content +} + +// NewFile creates a new file +func NewFile(name string, content []byte, pkg *Package) (*File, error) { + f, err := parser.ParseFile(pkg.fset, name, content, parser.ParseComments) + if err != nil { + return nil, err + } + return &File{ + Name: name, + content: content, + Pkg: pkg, + AST: f, + }, nil +} + +// ToPosition returns line and column for given position. +func (f *File) ToPosition(pos token.Pos) token.Position { + return f.Pkg.fset.Position(pos) +} + +// Render renters a node. +func (f *File) Render(x interface{}) string { + var buf bytes.Buffer + if err := printer.Fprint(&buf, f.Pkg.fset, x); err != nil { + panic(err) + } + return buf.String() +} + +// CommentMap builds a comment map for the file. +func (f *File) CommentMap() ast.CommentMap { + return ast.NewCommentMap(f.Pkg.fset, f.AST, f.AST.Comments) +} + +var basicTypeKinds = map[types.BasicKind]string{ + types.UntypedBool: "bool", + types.UntypedInt: "int", + types.UntypedRune: "rune", + types.UntypedFloat: "float64", + types.UntypedComplex: "complex128", + types.UntypedString: "string", +} + +// IsUntypedConst reports whether expr is an untyped constant, +// and indicates what its default type is. +// scope may be nil. +func (f *File) IsUntypedConst(expr ast.Expr) (defType string, ok bool) { + // Re-evaluate expr outside of its context to see if it's untyped. + // (An expr evaluated within, for example, an assignment context will get the type of the LHS.) + exprStr := f.Render(expr) + tv, err := types.Eval(f.Pkg.fset, f.Pkg.TypesPkg, expr.Pos(), exprStr) + if err != nil { + return "", false + } + if b, ok := tv.Type.(*types.Basic); ok { + if dt, ok := basicTypeKinds[b.Kind()]; ok { + return dt, true + } + } + + return "", false +} + +func (f *File) isMain() bool { + if f.AST.Name.Name == "main" { + return true + } + return false +} + +const directiveSpecifyDisableReason = "specify-disable-reason" + +func (f *File) lint(rules []Rule, config Config, failures chan Failure) { + rulesConfig := config.Rules + _, mustSpecifyDisableReason := config.Directives[directiveSpecifyDisableReason] + disabledIntervals := f.disabledIntervals(rules, mustSpecifyDisableReason, failures) + for _, currentRule := range rules { + ruleConfig := rulesConfig[currentRule.Name()] + currentFailures := currentRule.Apply(f, ruleConfig.Arguments) + for idx, failure := range currentFailures { + if failure.RuleName == "" { + failure.RuleName = currentRule.Name() + } + if failure.Node != nil { + failure.Position = ToFailurePosition(failure.Node.Pos(), failure.Node.End(), f) + } + currentFailures[idx] = failure + } + currentFailures = f.filterFailures(currentFailures, disabledIntervals) + for _, failure := range currentFailures { + if failure.Confidence >= config.Confidence { + failures <- failure + } + } + } +} + +type enableDisableConfig struct { + enabled bool + position int +} + +const directiveRE = `^//[\s]*revive:(enable|disable)(?:-(line|next-line))?(?::([^\s]+))?[\s]*(?: (.+))?$` +const directivePos = 1 +const modifierPos = 2 +const rulesPos = 3 +const reasonPos = 4 + +var re = regexp.MustCompile(directiveRE) + +func (f *File) disabledIntervals(rules []Rule, mustSpecifyDisableReason bool, failures chan Failure) disabledIntervalsMap { + enabledDisabledRulesMap := make(map[string][]enableDisableConfig) + + getEnabledDisabledIntervals := func() disabledIntervalsMap { + result := make(disabledIntervalsMap) + + for ruleName, disabledArr := range enabledDisabledRulesMap { + ruleResult := []DisabledInterval{} + for i := 0; i < len(disabledArr); i++ { + interval := DisabledInterval{ + RuleName: ruleName, + From: token.Position{ + Filename: f.Name, + Line: disabledArr[i].position, + }, + To: token.Position{ + Filename: f.Name, + Line: math.MaxInt32, + }, + } + if i%2 == 0 { + ruleResult = append(ruleResult, interval) + } else { + ruleResult[len(ruleResult)-1].To.Line = disabledArr[i].position + } + } + result[ruleName] = ruleResult + } + + return result + } + + handleConfig := func(isEnabled bool, line int, name string) { + existing, ok := enabledDisabledRulesMap[name] + if !ok { + existing = []enableDisableConfig{} + enabledDisabledRulesMap[name] = existing + } + if (len(existing) > 1 && existing[len(existing)-1].enabled == isEnabled) || + (len(existing) == 0 && isEnabled) { + return + } + existing = append(existing, enableDisableConfig{ + enabled: isEnabled, + position: line, + }) + enabledDisabledRulesMap[name] = existing + } + + handleRules := func(filename, modifier string, isEnabled bool, line int, ruleNames []string) []DisabledInterval { + var result []DisabledInterval + for _, name := range ruleNames { + if modifier == "line" { + handleConfig(isEnabled, line, name) + handleConfig(!isEnabled, line, name) + } else if modifier == "next-line" { + handleConfig(isEnabled, line+1, name) + handleConfig(!isEnabled, line+1, name) + } else { + handleConfig(isEnabled, line, name) + } + } + return result + } + + handleComment := func(filename string, c *ast.CommentGroup, line int) { + comments := c.List + for _, c := range comments { + match := re.FindStringSubmatch(c.Text) + if len(match) == 0 { + return + } + + ruleNames := []string{} + tempNames := strings.Split(match[rulesPos], ",") + for _, name := range tempNames { + name = strings.Trim(name, "\n") + if len(name) > 0 { + ruleNames = append(ruleNames, name) + } + } + + mustCheckDisablingReason := mustSpecifyDisableReason && match[directivePos] == "disable" + if mustCheckDisablingReason && strings.Trim(match[reasonPos], " ") == "" { + failures <- Failure{ + Confidence: 1, + RuleName: directiveSpecifyDisableReason, + Failure: "reason of lint disabling not found", + Position: ToFailurePosition(c.Pos(), c.End(), f), + Node: c, + } + continue // skip this linter disabling directive + } + + // TODO: optimize + if len(ruleNames) == 0 { + for _, rule := range rules { + ruleNames = append(ruleNames, rule.Name()) + } + } + + handleRules(filename, match[modifierPos], match[directivePos] == "enable", line, ruleNames) + } + } + + comments := f.AST.Comments + for _, c := range comments { + handleComment(f.Name, c, f.ToPosition(c.End()).Line) + } + + return getEnabledDisabledIntervals() +} + +func (f *File) filterFailures(failures []Failure, disabledIntervals disabledIntervalsMap) []Failure { + result := []Failure{} + for _, failure := range failures { + fStart := failure.Position.Start.Line + fEnd := failure.Position.End.Line + intervals, ok := disabledIntervals[failure.RuleName] + if !ok { + result = append(result, failure) + } else { + include := true + for _, interval := range intervals { + intStart := interval.From.Line + intEnd := interval.To.Line + if (fStart >= intStart && fStart <= intEnd) || + (fEnd >= intStart && fEnd <= intEnd) { + include = false + break + } + } + if include { + result = append(result, failure) + } + } + } + return result +} diff --git a/vendor/github.com/mgechev/revive/lint/formatter.go b/vendor/github.com/mgechev/revive/lint/formatter.go new file mode 100644 index 000000000..7c19af278 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/formatter.go @@ -0,0 +1,14 @@ +package lint + +// FormatterMetadata configuration of a formatter +type FormatterMetadata struct { + Name string + Description string + Sample string +} + +// Formatter defines an interface for failure formatters +type Formatter interface { + Format(<-chan Failure, Config) (string, error) + Name() string +} diff --git a/vendor/github.com/mgechev/revive/lint/linter.go b/vendor/github.com/mgechev/revive/lint/linter.go new file mode 100644 index 000000000..cdca84fb5 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/linter.go @@ -0,0 +1,99 @@ +package lint + +import ( + "bufio" + "bytes" + "fmt" + "go/token" + "os" + "sync" +) + +// ReadFile defines an abstraction for reading files. +type ReadFile func(path string) (result []byte, err error) + +type disabledIntervalsMap = map[string][]DisabledInterval + +// Linter is used for linting set of files. +type Linter struct { + reader ReadFile +} + +// New creates a new Linter +func New(reader ReadFile) Linter { + return Linter{reader: reader} +} + +var ( + genHdr = []byte("// Code generated ") + genFtr = []byte(" DO NOT EDIT.") +) + +// Lint lints a set of files with the specified rule. +func (l *Linter) Lint(packages [][]string, ruleSet []Rule, config Config) (<-chan Failure, error) { + failures := make(chan Failure) + + var wg sync.WaitGroup + for _, pkg := range packages { + wg.Add(1) + go func(pkg []string) { + if err := l.lintPackage(pkg, ruleSet, config, failures); err != nil { + fmt.Fprintln(os.Stderr, err) + os.Exit(1) + } + defer wg.Done() + }(pkg) + } + + go func() { + wg.Wait() + close(failures) + }() + + return failures, nil +} + +func (l *Linter) lintPackage(filenames []string, ruleSet []Rule, config Config, failures chan Failure) error { + pkg := &Package{ + fset: token.NewFileSet(), + files: map[string]*File{}, + mu: sync.Mutex{}, + } + for _, filename := range filenames { + content, err := l.reader(filename) + if err != nil { + return err + } + if isGenerated(content) && !config.IgnoreGeneratedHeader { + continue + } + + file, err := NewFile(filename, content, pkg) + if err != nil { + return err + } + pkg.files[filename] = file + } + + if len(pkg.files) == 0 { + return nil + } + + pkg.lint(ruleSet, config, failures) + + return nil +} + +// isGenerated reports whether the source file is generated code +// according the rules from https://golang.org/s/generatedcode. +// This is inherited from the original go lint. +func isGenerated(src []byte) bool { + sc := bufio.NewScanner(bytes.NewReader(src)) + for sc.Scan() { + b := sc.Bytes() + if bytes.HasPrefix(b, genHdr) && bytes.HasSuffix(b, genFtr) && len(b) >= len(genHdr)+len(genFtr) { + return true + } + } + return false +} diff --git a/vendor/github.com/mgechev/revive/lint/package.go b/vendor/github.com/mgechev/revive/lint/package.go new file mode 100644 index 000000000..7b6046fd7 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/package.go @@ -0,0 +1,178 @@ +package lint + +import ( + "go/ast" + "go/token" + "go/types" + "sync" + + "golang.org/x/tools/go/gcexportdata" +) + +// Package represents a package in the project. +type Package struct { + fset *token.FileSet + files map[string]*File + + TypesPkg *types.Package + TypesInfo *types.Info + + // sortable is the set of types in the package that implement sort.Interface. + Sortable map[string]bool + // main is whether this is a "main" package. + main int + mu sync.Mutex +} + +var newImporter = func(fset *token.FileSet) types.ImporterFrom { + return gcexportdata.NewImporter(fset, make(map[string]*types.Package)) +} + +var ( + trueValue = 1 + falseValue = 2 + notSet = 3 +) + +// IsMain returns if that's the main package. +func (p *Package) IsMain() bool { + if p.main == trueValue { + return true + } else if p.main == falseValue { + return false + } + for _, f := range p.files { + if f.isMain() { + p.main = trueValue + return true + } + } + p.main = falseValue + return false +} + +// TypeCheck performs type checking for given package. +func (p *Package) TypeCheck() error { + p.mu.Lock() + // If type checking has already been performed + // skip it. + if p.TypesInfo != nil || p.TypesPkg != nil { + p.mu.Unlock() + return nil + } + config := &types.Config{ + // By setting a no-op error reporter, the type checker does as much work as possible. + Error: func(error) {}, + Importer: newImporter(p.fset), + } + info := &types.Info{ + Types: make(map[ast.Expr]types.TypeAndValue), + Defs: make(map[*ast.Ident]types.Object), + Uses: make(map[*ast.Ident]types.Object), + Scopes: make(map[ast.Node]*types.Scope), + } + var anyFile *File + var astFiles []*ast.File + for _, f := range p.files { + anyFile = f + astFiles = append(astFiles, f.AST) + } + + typesPkg, err := check(config, anyFile.AST.Name.Name, p.fset, astFiles, info) + + // Remember the typechecking info, even if config.Check failed, + // since we will get partial information. + p.TypesPkg = typesPkg + p.TypesInfo = info + p.mu.Unlock() + return err +} + +// check function encapsulates the call to go/types.Config.Check method and +// recovers if the called method panics (see issue #59) +func check(config *types.Config, n string, fset *token.FileSet, astFiles []*ast.File, info *types.Info) (p *types.Package, err error) { + defer func() { + if r := recover(); r != nil { + err, _ = r.(error) + p = nil + return + } + }() + + return config.Check(n, fset, astFiles, info) +} + +// TypeOf returns the type of an expression. +func (p *Package) TypeOf(expr ast.Expr) types.Type { + if p.TypesInfo == nil { + return nil + } + return p.TypesInfo.TypeOf(expr) +} + +type walker struct { + nmap map[string]int + has map[string]int +} + +func (w *walker) Visit(n ast.Node) ast.Visitor { + fn, ok := n.(*ast.FuncDecl) + if !ok || fn.Recv == nil || len(fn.Recv.List) == 0 { + return w + } + // TODO(dsymonds): We could check the signature to be more precise. + recv := receiverType(fn) + if i, ok := w.nmap[fn.Name.Name]; ok { + w.has[recv] |= i + } + return w +} + +func (p *Package) scanSortable() { + p.Sortable = make(map[string]bool) + + // bitfield for which methods exist on each type. + const ( + Len = 1 << iota + Less + Swap + ) + nmap := map[string]int{"Len": Len, "Less": Less, "Swap": Swap} + has := make(map[string]int) + for _, f := range p.files { + ast.Walk(&walker{nmap, has}, f.AST) + } + for typ, ms := range has { + if ms == Len|Less|Swap { + p.Sortable[typ] = true + } + } +} + +// receiverType returns the named type of the method receiver, sans "*", +// or "invalid-type" if fn.Recv is ill formed. +func receiverType(fn *ast.FuncDecl) string { + switch e := fn.Recv.List[0].Type.(type) { + case *ast.Ident: + return e.Name + case *ast.StarExpr: + if id, ok := e.X.(*ast.Ident); ok { + return id.Name + } + } + // The parser accepts much more than just the legal forms. + return "invalid-type" +} + +func (p *Package) lint(rules []Rule, config Config, failures chan Failure) { + p.scanSortable() + var wg sync.WaitGroup + for _, file := range p.files { + wg.Add(1) + go (func(file *File) { + file.lint(rules, config, failures) + defer wg.Done() + })(file) + } + wg.Wait() +} diff --git a/vendor/github.com/mgechev/revive/lint/rule.go b/vendor/github.com/mgechev/revive/lint/rule.go new file mode 100644 index 000000000..815abfdd8 --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/rule.go @@ -0,0 +1,31 @@ +package lint + +import ( + "go/token" +) + +// DisabledInterval contains a single disabled interval and the associated rule name. +type DisabledInterval struct { + From token.Position + To token.Position + RuleName string +} + +// Rule defines an abstract rule interaface +type Rule interface { + Name() string + Apply(*File, Arguments) []Failure +} + +// AbstractRule defines an abstract rule. +type AbstractRule struct { + Failures []Failure +} + +// ToFailurePosition returns the failure position. +func ToFailurePosition(start token.Pos, end token.Pos, file *File) FailurePosition { + return FailurePosition{ + Start: file.ToPosition(start), + End: file.ToPosition(end), + } +} diff --git a/vendor/github.com/mgechev/revive/lint/utils.go b/vendor/github.com/mgechev/revive/lint/utils.go new file mode 100644 index 000000000..28657c6df --- /dev/null +++ b/vendor/github.com/mgechev/revive/lint/utils.go @@ -0,0 +1,128 @@ +package lint + +import ( + "strings" + "unicode" +) + +// Name returns a different name if it should be different. +func Name(name string, whitelist, blacklist []string) (should string) { + // Fast path for simple cases: "_" and all lowercase. + if name == "_" { + return name + } + allLower := true + for _, r := range name { + if !unicode.IsLower(r) { + allLower = false + break + } + } + if allLower { + return name + } + + // Split camelCase at any lower->upper transition, and split on underscores. + // Check each word for common initialisms. + runes := []rune(name) + w, i := 0, 0 // index of start of word, scan + for i+1 <= len(runes) { + eow := false // whether we hit the end of a word + if i+1 == len(runes) { + eow = true + } else if runes[i+1] == '_' { + // underscore; shift the remainder forward over any run of underscores + eow = true + n := 1 + for i+n+1 < len(runes) && runes[i+n+1] == '_' { + n++ + } + + // Leave at most one underscore if the underscore is between two digits + if i+n+1 < len(runes) && unicode.IsDigit(runes[i]) && unicode.IsDigit(runes[i+n+1]) { + n-- + } + + copy(runes[i+1:], runes[i+n+1:]) + runes = runes[:len(runes)-n] + } else if unicode.IsLower(runes[i]) && !unicode.IsLower(runes[i+1]) { + // lower->non-lower + eow = true + } + i++ + if !eow { + continue + } + + // [w,i) is a word. + word := string(runes[w:i]) + ignoreInitWarnings := map[string]bool{} + for _, i := range whitelist { + ignoreInitWarnings[i] = true + } + + extraInits := map[string]bool{} + for _, i := range blacklist { + extraInits[i] = true + } + + if u := strings.ToUpper(word); (commonInitialisms[u] || extraInits[u]) && !ignoreInitWarnings[u] { + // Keep consistent case, which is lowercase only at the start. + if w == 0 && unicode.IsLower(runes[w]) { + u = strings.ToLower(u) + } + // All the common initialisms are ASCII, + // so we can replace the bytes exactly. + copy(runes[w:], []rune(u)) + } else if w > 0 && strings.ToLower(word) == word { + // already all lowercase, and not the first word, so uppercase the first character. + runes[w] = unicode.ToUpper(runes[w]) + } + w = i + } + return string(runes) +} + +// commonInitialisms is a set of common initialisms. +// Only add entries that are highly unlikely to be non-initialisms. +// For instance, "ID" is fine (Freudian code is rare), but "AND" is not. +var commonInitialisms = map[string]bool{ + "ACL": true, + "API": true, + "ASCII": true, + "CPU": true, + "CSS": true, + "DNS": true, + "EOF": true, + "GUID": true, + "HTML": true, + "HTTP": true, + "HTTPS": true, + "ID": true, + "IP": true, + "JSON": true, + "LHS": true, + "QPS": true, + "RAM": true, + "RHS": true, + "RPC": true, + "SLA": true, + "SMTP": true, + "SQL": true, + "SSH": true, + "TCP": true, + "TLS": true, + "TTL": true, + "UDP": true, + "UI": true, + "UID": true, + "UUID": true, + "URI": true, + "URL": true, + "UTF8": true, + "VM": true, + "XML": true, + "XMPP": true, + "XSRF": true, + "XSS": true, +} diff --git a/vendor/github.com/mgechev/revive/rule/add-constant.go b/vendor/github.com/mgechev/revive/rule/add-constant.go new file mode 100644 index 000000000..881bbd073 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/add-constant.go @@ -0,0 +1,151 @@ +package rule + +import ( + "fmt" + "github.com/mgechev/revive/lint" + "go/ast" + "strconv" + "strings" +) + +const ( + defaultStrLitLimit = 2 + kindFLOAT = "FLOAT" + kindINT = "INT" + kindSTRING = "STRING" +) + +type whiteList map[string]map[string]bool + +func newWhiteList() whiteList { + return map[string]map[string]bool{kindINT: map[string]bool{}, kindFLOAT: map[string]bool{}, kindSTRING: map[string]bool{}} +} + +func (wl whiteList) add(kind string, list string) { + elems := strings.Split(list, ",") + for _, e := range elems { + wl[kind][e] = true + } +} + +// AddConstantRule lints unused params in functions. +type AddConstantRule struct{} + +// Apply applies the rule to given file. +func (r *AddConstantRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + strLitLimit := defaultStrLitLimit + var whiteList = newWhiteList() + if len(arguments) > 0 { + args, ok := arguments[0].(map[string]interface{}) + if !ok { + panic(fmt.Sprintf("Invalid argument to the add-constant rule. Expecting a k,v map, got %T", arguments[0])) + } + for k, v := range args { + kind := "" + switch k { + case "allowFloats": + kind = kindFLOAT + fallthrough + case "allowInts": + if kind == "" { + kind = kindINT + } + fallthrough + case "allowStrs": + if kind == "" { + kind = kindSTRING + } + list, ok := v.(string) + if !ok { + panic(fmt.Sprintf("Invalid argument to the add-constant rule, string expected. Got '%v' (%T)", v, v)) + } + whiteList.add(kind, list) + case "maxLitCount": + sl, ok := v.(string) + if !ok { + panic(fmt.Sprintf("Invalid argument to the add-constant rule, expecting string representation of an integer. Got '%v' (%T)", v, v)) + } + + limit, err := strconv.Atoi(sl) + if err != nil { + panic(fmt.Sprintf("Invalid argument to the add-constant rule, expecting string representation of an integer. Got '%v'", v)) + } + strLitLimit = limit + } + } + } + + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintAddConstantRule{onFailure: onFailure, strLits: make(map[string]int, 0), strLitLimit: strLitLimit, whiteLst: whiteList} + + ast.Walk(w, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *AddConstantRule) Name() string { + return "add-constant" +} + +type lintAddConstantRule struct { + onFailure func(lint.Failure) + strLits map[string]int + strLitLimit int + whiteLst whiteList +} + +func (w lintAddConstantRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.GenDecl: + return nil // skip declarations + case *ast.BasicLit: + switch kind := n.Kind.String(); kind { + case kindFLOAT, kindINT: + w.checkNumLit(kind, n) + case kindSTRING: + w.checkStrLit(n) + } + } + + return w + +} + +func (w lintAddConstantRule) checkStrLit(n *ast.BasicLit) { + if w.whiteLst[kindSTRING][n.Value] { + return + } + + count := w.strLits[n.Value] + if count >= 0 { + w.strLits[n.Value] = count + 1 + if w.strLits[n.Value] > w.strLitLimit { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: n, + Category: "style", + Failure: fmt.Sprintf("string literal %s appears, at least, %d times, create a named constant for it", n.Value, w.strLits[n.Value]), + }) + w.strLits[n.Value] = -1 // mark it to avoid failing again on the same literal + } + } +} + +func (w lintAddConstantRule) checkNumLit(kind string, n *ast.BasicLit) { + if w.whiteLst[kind][n.Value] { + return + } + + w.onFailure(lint.Failure{ + Confidence: 1, + Node: n, + Category: "style", + Failure: fmt.Sprintf("avoid magic numbers like '%s', create a named constant for it", n.Value), + }) +} diff --git a/vendor/github.com/mgechev/revive/rule/argument-limit.go b/vendor/github.com/mgechev/revive/rule/argument-limit.go new file mode 100644 index 000000000..2b11d4982 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/argument-limit.go @@ -0,0 +1,67 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// ArgumentsLimitRule lints given else constructs. +type ArgumentsLimitRule struct{} + +// Apply applies the rule to given file. +func (r *ArgumentsLimitRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + if len(arguments) != 1 { + panic(`invalid configuration for "argument-limit"`) + } + + total, ok := arguments[0].(int64) // Alt. non panicking version + if !ok { + panic(`invalid value passed as argument number to the "argument-list" rule`) + } + + var failures []lint.Failure + + walker := lintArgsNum{ + total: int(total), + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *ArgumentsLimitRule) Name() string { + return "argument-limit" +} + +type lintArgsNum struct { + total int + onFailure func(lint.Failure) +} + +func (w lintArgsNum) Visit(n ast.Node) ast.Visitor { + node, ok := n.(*ast.FuncDecl) + if ok { + num := 0 + for _, l := range node.Type.Params.List { + for range l.Names { + num++ + } + } + if num > w.total { + w.onFailure(lint.Failure{ + Confidence: 1, + Failure: fmt.Sprintf("maximum number of arguments per function exceeded; max %d but got %d", w.total, num), + Node: node.Type, + }) + return w + } + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/atomic.go b/vendor/github.com/mgechev/revive/rule/atomic.go new file mode 100644 index 000000000..572e141da --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/atomic.go @@ -0,0 +1,94 @@ +package rule + +import ( + "go/ast" + "go/token" + "go/types" + + "github.com/mgechev/revive/lint" +) + +// AtomicRule lints given else constructs. +type AtomicRule struct{} + +// Apply applies the rule to given file. +func (r *AtomicRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + walker := atomic{ + pkgTypesInfo: file.Pkg.TypesInfo, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *AtomicRule) Name() string { + return "atomic" +} + +type atomic struct { + pkgTypesInfo *types.Info + onFailure func(lint.Failure) +} + +func (w atomic) Visit(node ast.Node) ast.Visitor { + n, ok := node.(*ast.AssignStmt) + if !ok { + return w + } + + if len(n.Lhs) != len(n.Rhs) { + return nil // skip assignment sub-tree + } + if len(n.Lhs) == 1 && n.Tok == token.DEFINE { + return nil // skip assignment sub-tree + } + + for i, right := range n.Rhs { + call, ok := right.(*ast.CallExpr) + if !ok { + continue + } + sel, ok := call.Fun.(*ast.SelectorExpr) + if !ok { + continue + } + pkgIdent, _ := sel.X.(*ast.Ident) + if w.pkgTypesInfo != nil { + pkgName, ok := w.pkgTypesInfo.Uses[pkgIdent].(*types.PkgName) + if !ok || pkgName.Imported().Path() != "sync/atomic" { + continue + } + } + + switch sel.Sel.Name { + case "AddInt32", "AddInt64", "AddUint32", "AddUint64", "AddUintptr": + left := n.Lhs[i] + if len(call.Args) != 2 { + continue + } + arg := call.Args[0] + broken := false + + if uarg, ok := arg.(*ast.UnaryExpr); ok && uarg.Op == token.AND { + broken = gofmt(left) == gofmt(uarg.X) + } else if star, ok := left.(*ast.StarExpr); ok { + broken = gofmt(star.X) == gofmt(arg) + } + + if broken { + w.onFailure(lint.Failure{ + Confidence: 1, + Failure: "direct assignment to atomic value", + Node: n, + }) + } + } + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/bare-return.go b/vendor/github.com/mgechev/revive/rule/bare-return.go new file mode 100644 index 000000000..3ee4c4adc --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/bare-return.go @@ -0,0 +1,84 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// BareReturnRule lints given else constructs. +type BareReturnRule struct{} + +// Apply applies the rule to given file. +func (r *BareReturnRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintBareReturnRule{onFailure: onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *BareReturnRule) Name() string { + return "bare-return" +} + +type lintBareReturnRule struct { + onFailure func(lint.Failure) +} + +func (w lintBareReturnRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.FuncDecl: + w.checkFunc(n.Type.Results, n.Body) + case *ast.FuncLit: // to cope with deferred functions and go-routines + w.checkFunc(n.Type.Results, n.Body) + } + + return w +} + +// checkFunc will verify if the given function has named result and bare returns +func (w lintBareReturnRule) checkFunc(results *ast.FieldList, body *ast.BlockStmt) { + hasNamedResults := results != nil && len(results.List) > 0 && results.List[0].Names != nil + if !hasNamedResults || body == nil { + return // nothing to do + } + + brf := bareReturnFinder{w.onFailure} + ast.Walk(brf, body) +} + +type bareReturnFinder struct { + onFailure func(lint.Failure) +} + +func (w bareReturnFinder) Visit(node ast.Node) ast.Visitor { + _, ok := node.(*ast.FuncLit) + if ok { + // skip analysing function literals + // they will analyzed by the lintBareReturnRule.Visit method + return nil + } + + rs, ok := node.(*ast.ReturnStmt) + if !ok { + return w + } + + if len(rs.Results) > 0 { + return w + } + + w.onFailure(lint.Failure{ + Confidence: 1, + Node: rs, + Failure: "avoid using bare returns, please add return expressions", + }) + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/blank-imports.go b/vendor/github.com/mgechev/revive/rule/blank-imports.go new file mode 100644 index 000000000..0a00e3707 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/blank-imports.go @@ -0,0 +1,74 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// BlankImportsRule lints given else constructs. +type BlankImportsRule struct{} + +// Apply applies the rule to given file. +func (r *BlankImportsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintBlankImports{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *BlankImportsRule) Name() string { + return "blank-imports" +} + +type lintBlankImports struct { + fileAst *ast.File + file *lint.File + onFailure func(lint.Failure) +} + +func (w lintBlankImports) Visit(_ ast.Node) ast.Visitor { + // In package main and in tests, we don't complain about blank imports. + if w.file.Pkg.IsMain() || w.file.IsTest() { + return nil + } + + // The first element of each contiguous group of blank imports should have + // an explanatory comment of some kind. + for i, imp := range w.fileAst.Imports { + pos := w.file.ToPosition(imp.Pos()) + + if !isBlank(imp.Name) { + continue // Ignore non-blank imports. + } + if i > 0 { + prev := w.fileAst.Imports[i-1] + prevPos := w.file.ToPosition(prev.Pos()) + if isBlank(prev.Name) && prevPos.Line+1 == pos.Line { + continue // A subsequent blank in a group. + } + } + + // This is the first blank import of a group. + if imp.Doc == nil && imp.Comment == nil { + w.onFailure(lint.Failure{ + Node: imp, + Failure: "a blank import should be only in a main or test package, or have a comment justifying it", + Confidence: 1, + Category: "imports", + }) + } + } + return nil +} diff --git a/vendor/github.com/mgechev/revive/rule/bool-literal-in-expr.go b/vendor/github.com/mgechev/revive/rule/bool-literal-in-expr.go new file mode 100644 index 000000000..0a4e696c6 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/bool-literal-in-expr.go @@ -0,0 +1,73 @@ +package rule + +import ( + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// BoolLiteralRule warns when logic expressions contains Boolean literals. +type BoolLiteralRule struct{} + +// Apply applies the rule to given file. +func (r *BoolLiteralRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + astFile := file.AST + w := &lintBoolLiteral{astFile, onFailure} + ast.Walk(w, astFile) + + return failures +} + +// Name returns the rule name. +func (r *BoolLiteralRule) Name() string { + return "bool-literal-in-expr" +} + +type lintBoolLiteral struct { + file *ast.File + onFailure func(lint.Failure) +} + +func (w *lintBoolLiteral) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.BinaryExpr: + if !isBoolOp(n.Op) { + return w + } + + lexeme, ok := isExprABooleanLit(n.X) + if !ok { + lexeme, ok = isExprABooleanLit(n.Y) + + if !ok { + return w + } + } + + isConstant := (n.Op == token.LAND && lexeme == "false") || (n.Op == token.LOR && lexeme == "true") + + if isConstant { + w.addFailure(n, "Boolean expression seems to always evaluate to "+lexeme, "logic") + } else { + w.addFailure(n, "omit Boolean literal in expression", "style") + } + } + + return w +} + +func (w lintBoolLiteral) addFailure(node ast.Node, msg string, cat string) { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: node, + Category: cat, + Failure: msg, + }) +} diff --git a/vendor/github.com/mgechev/revive/rule/call-to-gc.go b/vendor/github.com/mgechev/revive/rule/call-to-gc.go new file mode 100644 index 000000000..06126611b --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/call-to-gc.go @@ -0,0 +1,70 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// CallToGCRule lints calls to the garbage collector. +type CallToGCRule struct{} + +// Apply applies the rule to given file. +func (r *CallToGCRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + var gcTriggeringFunctions = map[string]map[string]bool{ + "runtime": map[string]bool{"GC": true}, + } + + w := lintCallToGC{onFailure, gcTriggeringFunctions} + ast.Walk(w, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *CallToGCRule) Name() string { + return "call-to-gc" +} + +type lintCallToGC struct { + onFailure func(lint.Failure) + gcTriggeringFunctions map[string]map[string]bool +} + +func (w lintCallToGC) Visit(node ast.Node) ast.Visitor { + ce, ok := node.(*ast.CallExpr) + if !ok { + return w // nothing to do, the node is not a call + } + + fc, ok := ce.Fun.(*ast.SelectorExpr) + if !ok { + return nil // nothing to do, the call is not of the form pkg.func(...) + } + + id, ok := fc.X.(*ast.Ident) + + if !ok { + return nil // in case X is not an id (it should be!) + } + + fn := fc.Sel.Name + pkg := id.Name + if !w.gcTriggeringFunctions[pkg][fn] { + return nil // it isn't a call to a GC triggering function + } + + w.onFailure(lint.Failure{ + Confidence: 1, + Node: node, + Category: "bad practice", + Failure: "explicit call to the garbage collector", + }) + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/cognitive-complexity.go b/vendor/github.com/mgechev/revive/rule/cognitive-complexity.go new file mode 100644 index 000000000..711aa2289 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/cognitive-complexity.go @@ -0,0 +1,195 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" + "golang.org/x/tools/go/ast/astutil" +) + +// CognitiveComplexityRule lints given else constructs. +type CognitiveComplexityRule struct{} + +// Apply applies the rule to given file. +func (r *CognitiveComplexityRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + var failures []lint.Failure + + const expectedArgumentsCount = 1 + if len(arguments) < expectedArgumentsCount { + panic(fmt.Sprintf("not enough arguments for cognitive-complexity, expected %d, got %d", expectedArgumentsCount, len(arguments))) + } + complexity, ok := arguments[0].(int64) + if !ok { + panic(fmt.Sprintf("invalid argument type for cognitive-complexity, expected int64, got %T", arguments[0])) + } + + linter := cognitiveComplexityLinter{ + file: file, + maxComplexity: int(complexity), + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + linter.lint() + + return failures +} + +// Name returns the rule name. +func (r *CognitiveComplexityRule) Name() string { + return "cognitive-complexity" +} + +type cognitiveComplexityLinter struct { + file *lint.File + maxComplexity int + onFailure func(lint.Failure) +} + +func (w cognitiveComplexityLinter) lint() { + f := w.file + for _, decl := range f.AST.Decls { + if fn, ok := decl.(*ast.FuncDecl); ok { + v := cognitiveComplexityVisitor{} + c := v.subTreeComplexity(fn.Body) + if c > w.maxComplexity { + w.onFailure(lint.Failure{ + Confidence: 1, + Category: "maintenance", + Failure: fmt.Sprintf("function %s has cognitive complexity %d (> max enabled %d)", funcName(fn), c, w.maxComplexity), + Node: fn, + }) + } + } + } +} + +type cognitiveComplexityVisitor struct { + complexity int + nestingLevel int +} + +// subTreeComplexity calculates the cognitive complexity of an AST-subtree. +func (v cognitiveComplexityVisitor) subTreeComplexity(n ast.Node) int { + ast.Walk(&v, n) + return v.complexity +} + +// Visit implements the ast.Visitor interface. +func (v *cognitiveComplexityVisitor) Visit(n ast.Node) ast.Visitor { + switch n := n.(type) { + case *ast.IfStmt: + targets := []ast.Node{n.Cond, n.Body, n.Else} + v.walk(1, targets...) + return nil + case *ast.ForStmt: + targets := []ast.Node{n.Cond, n.Body} + v.walk(1, targets...) + return nil + case *ast.RangeStmt: + v.walk(1, n.Body) + return nil + case *ast.SelectStmt: + v.walk(1, n.Body) + return nil + case *ast.SwitchStmt: + v.walk(1, n.Body) + return nil + case *ast.TypeSwitchStmt: + v.walk(1, n.Body) + return nil + case *ast.FuncLit: + v.walk(0, n.Body) // do not increment the complexity, just do the nesting + return nil + case *ast.BinaryExpr: + v.complexity += v.binExpComplexity(n) + return nil // skip visiting binexp sub-tree (already visited by binExpComplexity) + case *ast.BranchStmt: + if n.Label != nil { + v.complexity += 1 + } + } + // TODO handle (at least) direct recursion + + return v +} + +func (v *cognitiveComplexityVisitor) walk(complexityIncrement int, targets ...ast.Node) { + v.complexity += complexityIncrement + v.nestingLevel + nesting := v.nestingLevel + v.nestingLevel++ + + for _, t := range targets { + if t == nil { + continue + } + + ast.Walk(v, t) + } + + v.nestingLevel = nesting +} + +func (cognitiveComplexityVisitor) binExpComplexity(n *ast.BinaryExpr) int { + calculator := binExprComplexityCalculator{opsStack: []token.Token{}} + + astutil.Apply(n, calculator.pre, calculator.post) + + return calculator.complexity +} + +type binExprComplexityCalculator struct { + complexity int + opsStack []token.Token // stack of bool operators + subexpStarted bool +} + +func (becc *binExprComplexityCalculator) pre(c *astutil.Cursor) bool { + switch n := c.Node().(type) { + case *ast.BinaryExpr: + isBoolOp := n.Op == token.LAND || n.Op == token.LOR + if !isBoolOp { + break + } + + ops := len(becc.opsStack) + // if + // is the first boolop in the expression OR + // is the first boolop inside a subexpression (...) OR + // is not the same to the previous one + // then + // increment complexity + if ops == 0 || becc.subexpStarted || n.Op != becc.opsStack[ops-1] { + becc.complexity++ + becc.subexpStarted = false + } + + becc.opsStack = append(becc.opsStack, n.Op) + case *ast.ParenExpr: + becc.subexpStarted = true + } + + return true +} + +func (becc *binExprComplexityCalculator) post(c *astutil.Cursor) bool { + switch n := c.Node().(type) { + case *ast.BinaryExpr: + isBoolOp := n.Op == token.LAND || n.Op == token.LOR + if !isBoolOp { + break + } + + ops := len(becc.opsStack) + if ops > 0 { + becc.opsStack = becc.opsStack[:ops-1] + } + case *ast.ParenExpr: + becc.subexpStarted = false + } + + return true +} diff --git a/vendor/github.com/mgechev/revive/rule/confusing-naming.go b/vendor/github.com/mgechev/revive/rule/confusing-naming.go new file mode 100644 index 000000000..143bb18c3 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/confusing-naming.go @@ -0,0 +1,190 @@ +package rule + +import ( + "fmt" + "go/ast" + + "strings" + "sync" + + "github.com/mgechev/revive/lint" +) + +type referenceMethod struct { + fileName string + id *ast.Ident +} + +type pkgMethods struct { + pkg *lint.Package + methods map[string]map[string]*referenceMethod + mu *sync.Mutex +} + +type packages struct { + pkgs []pkgMethods + mu sync.Mutex +} + +func (ps *packages) methodNames(lp *lint.Package) pkgMethods { + ps.mu.Lock() + + for _, pkg := range ps.pkgs { + if pkg.pkg == lp { + ps.mu.Unlock() + return pkg + } + } + + pkgm := pkgMethods{pkg: lp, methods: make(map[string]map[string]*referenceMethod), mu: &sync.Mutex{}} + ps.pkgs = append(ps.pkgs, pkgm) + + ps.mu.Unlock() + return pkgm +} + +var allPkgs = packages{pkgs: make([]pkgMethods, 1)} + +// ConfusingNamingRule lints method names that differ only by capitalization +type ConfusingNamingRule struct{} + +// Apply applies the rule to given file. +func (r *ConfusingNamingRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + fileAst := file.AST + pkgm := allPkgs.methodNames(file.Pkg) + walker := lintConfusingNames{ + fileName: file.Name, + pkgm: pkgm, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(&walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ConfusingNamingRule) Name() string { + return "confusing-naming" +} + +//checkMethodName checks if a given method/function name is similar (just case differences) to other method/function of the same struct/file. +func checkMethodName(holder string, id *ast.Ident, w *lintConfusingNames) { + if id.Name == "init" && holder == defaultStructName { + // ignore init functions + return + } + + pkgm := w.pkgm + name := strings.ToUpper(id.Name) + + pkgm.mu.Lock() + defer pkgm.mu.Unlock() + + if pkgm.methods[holder] != nil { + if pkgm.methods[holder][name] != nil { + refMethod := pkgm.methods[holder][name] + // confusing names + var kind string + if holder == defaultStructName { + kind = "function" + } else { + kind = "method" + } + var fileName string + if w.fileName == refMethod.fileName { + fileName = "the same source file" + } else { + fileName = refMethod.fileName + } + w.onFailure(lint.Failure{ + Failure: fmt.Sprintf("Method '%s' differs only by capitalization to %s '%s' in %s", id.Name, kind, refMethod.id.Name, fileName), + Confidence: 1, + Node: id, + Category: "naming", + }) + + return + } + } else { + pkgm.methods[holder] = make(map[string]*referenceMethod, 1) + } + + // update the black list + if pkgm.methods[holder] == nil { + println("no entry for '", holder, "'") + } + pkgm.methods[holder][name] = &referenceMethod{fileName: w.fileName, id: id} +} + +type lintConfusingNames struct { + fileName string + pkgm pkgMethods + onFailure func(lint.Failure) +} + +const defaultStructName = "_" // used to map functions + +//getStructName of a function receiver. Defaults to defaultStructName +func getStructName(r *ast.FieldList) string { + result := defaultStructName + + if r == nil || len(r.List) < 1 { + return result + } + + t := r.List[0].Type + + if p, _ := t.(*ast.StarExpr); p != nil { // if a pointer receiver => dereference pointer receiver types + t = p.X + } + + if p, _ := t.(*ast.Ident); p != nil { + result = p.Name + } + + return result +} + +func checkStructFields(fields *ast.FieldList, structName string, w *lintConfusingNames) { + bl := make(map[string]bool, len(fields.List)) + for _, f := range fields.List { + for _, id := range f.Names { + normName := strings.ToUpper(id.Name) + if bl[normName] { + w.onFailure(lint.Failure{ + Failure: fmt.Sprintf("Field '%s' differs only by capitalization to other field in the struct type %s", id.Name, structName), + Confidence: 1, + Node: id, + Category: "naming", + }) + } else { + bl[normName] = true + } + } + } +} + +func (w *lintConfusingNames) Visit(n ast.Node) ast.Visitor { + switch v := n.(type) { + case *ast.FuncDecl: + // Exclude naming warnings for functions that are exported to C but + // not exported in the Go API. + // See https://github.com/golang/lint/issues/144. + if ast.IsExported(v.Name.Name) || !isCgoExported(v) { + checkMethodName(getStructName(v.Recv), v.Name, w) + } + case *ast.TypeSpec: + if s, ok := v.Type.(*ast.StructType); ok { + checkStructFields(s.Fields, v.Name.Name, w) + } + + default: + // will add other checks like field names, struct names, etc. + } + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/confusing-results.go b/vendor/github.com/mgechev/revive/rule/confusing-results.go new file mode 100644 index 000000000..1d386b3db --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/confusing-results.go @@ -0,0 +1,67 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// ConfusingResultsRule lints given function declarations +type ConfusingResultsRule struct{} + +// Apply applies the rule to given file. +func (r *ConfusingResultsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintConfusingResults{ + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ConfusingResultsRule) Name() string { + return "confusing-results" +} + +type lintConfusingResults struct { + onFailure func(lint.Failure) +} + +func (w lintConfusingResults) Visit(n ast.Node) ast.Visitor { + fn, ok := n.(*ast.FuncDecl) + if !ok || fn.Type.Results == nil || len(fn.Type.Results.List) < 2 { + return w + } + lastType := "" + for _, result := range fn.Type.Results.List { + if len(result.Names) > 0 { + return w + } + + t, ok := result.Type.(*ast.Ident) + if !ok { + return w + } + + if t.Name == lastType { + w.onFailure(lint.Failure{ + Node: n, + Confidence: 1, + Category: "naming", + Failure: "unnamed results of the same type may be confusing, consider using named results", + }) + break + } + lastType = t.Name + + } + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/constant-logical-expr.go b/vendor/github.com/mgechev/revive/rule/constant-logical-expr.go new file mode 100644 index 000000000..6a9156111 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/constant-logical-expr.go @@ -0,0 +1,88 @@ +package rule + +import ( + "github.com/mgechev/revive/lint" + "go/ast" + "go/token" +) + +// ConstantLogicalExprRule warns on constant logical expressions. +type ConstantLogicalExprRule struct{} + +// Apply applies the rule to given file. +func (r *ConstantLogicalExprRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + astFile := file.AST + w := &lintConstantLogicalExpr{astFile, onFailure} + ast.Walk(w, astFile) + return failures +} + +// Name returns the rule name. +func (r *ConstantLogicalExprRule) Name() string { + return "constant-logical-expr" +} + +type lintConstantLogicalExpr struct { + file *ast.File + onFailure func(lint.Failure) +} + +func (w *lintConstantLogicalExpr) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.BinaryExpr: + if !w.isOperatorWithLogicalResult(n.Op) { + return w + } + + if gofmt(n.X) != gofmt(n.Y) { // check if subexpressions are the same + return w + } + + if n.Op == token.EQL { + w.newFailure(n, "expression always evaluates to true") + return w + } + + if w.isInequalityOperator(n.Op) { + w.newFailure(n, "expression always evaluates to false") + return w + } + + w.newFailure(n, "left and right hand-side sub-expressions are the same") + } + + return w +} + +func (w *lintConstantLogicalExpr) isOperatorWithLogicalResult(t token.Token) bool { + switch t { + case token.LAND, token.LOR, token.EQL, token.LSS, token.GTR, token.NEQ, token.LEQ, token.GEQ: + return true + } + + return false +} + +func (w *lintConstantLogicalExpr) isInequalityOperator(t token.Token) bool { + switch t { + case token.LSS, token.GTR, token.NEQ, token.LEQ, token.GEQ: + return true + } + + return false +} + +func (w lintConstantLogicalExpr) newFailure(node ast.Node, msg string) { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: node, + Category: "logic", + Failure: msg, + }) +} diff --git a/vendor/github.com/mgechev/revive/rule/context-as-argument.go b/vendor/github.com/mgechev/revive/rule/context-as-argument.go new file mode 100644 index 000000000..0ed28a82a --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/context-as-argument.go @@ -0,0 +1,60 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// ContextAsArgumentRule lints given else constructs. +type ContextAsArgumentRule struct{} + +// Apply applies the rule to given file. +func (r *ContextAsArgumentRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintContextArguments{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ContextAsArgumentRule) Name() string { + return "context-as-argument" +} + +type lintContextArguments struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintContextArguments) Visit(n ast.Node) ast.Visitor { + fn, ok := n.(*ast.FuncDecl) + if !ok || len(fn.Type.Params.List) <= 1 { + return w + } + // A context.Context should be the first parameter of a function. + // Flag any that show up after the first. + for _, arg := range fn.Type.Params.List[1:] { + if isPkgDot(arg.Type, "context", "Context") { + w.onFailure(lint.Failure{ + Node: fn, + Category: "arg-order", + Failure: "context.Context should be the first parameter of a function", + Confidence: 0.9, + }) + break // only flag one + } + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/context-keys-type.go b/vendor/github.com/mgechev/revive/rule/context-keys-type.go new file mode 100644 index 000000000..9c2f0bbd7 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/context-keys-type.go @@ -0,0 +1,81 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/types" + + "github.com/mgechev/revive/lint" +) + +// ContextKeysType lints given else constructs. +type ContextKeysType struct{} + +// Apply applies the rule to given file. +func (r *ContextKeysType) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintContextKeyTypes{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + file.Pkg.TypeCheck() + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ContextKeysType) Name() string { + return "context-keys-type" +} + +type lintContextKeyTypes struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintContextKeyTypes) Visit(n ast.Node) ast.Visitor { + switch n := n.(type) { + case *ast.CallExpr: + checkContextKeyType(w, n) + } + + return w +} + +func checkContextKeyType(w lintContextKeyTypes, x *ast.CallExpr) { + f := w.file + sel, ok := x.Fun.(*ast.SelectorExpr) + if !ok { + return + } + pkg, ok := sel.X.(*ast.Ident) + if !ok || pkg.Name != "context" { + return + } + if sel.Sel.Name != "WithValue" { + return + } + + // key is second argument to context.WithValue + if len(x.Args) != 3 { + return + } + key := f.Pkg.TypesInfo.Types[x.Args[1]] + + if ktyp, ok := key.Type.(*types.Basic); ok && ktyp.Kind() != types.Invalid { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: x, + Category: "content", + Failure: fmt.Sprintf("should not use basic type %s as key in context.WithValue", key.Type), + }) + } +} diff --git a/vendor/github.com/mgechev/revive/rule/cyclomatic.go b/vendor/github.com/mgechev/revive/rule/cyclomatic.go new file mode 100644 index 000000000..48ea80a6a --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/cyclomatic.go @@ -0,0 +1,115 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// Based on https://github.com/fzipp/gocyclo + +// CyclomaticRule lints given else constructs. +type CyclomaticRule struct{} + +// Apply applies the rule to given file. +func (r *CyclomaticRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + var failures []lint.Failure + + complexity, ok := arguments[0].(int64) // Alt. non panicking version + if !ok { + panic("invalid argument for cyclomatic complexity") + } + + fileAst := file.AST + walker := lintCyclomatic{ + file: file, + complexity: int(complexity), + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *CyclomaticRule) Name() string { + return "cyclomatic" +} + +type lintCyclomatic struct { + file *lint.File + complexity int + onFailure func(lint.Failure) +} + +func (w lintCyclomatic) Visit(_ ast.Node) ast.Visitor { + f := w.file + for _, decl := range f.AST.Decls { + if fn, ok := decl.(*ast.FuncDecl); ok { + c := complexity(fn) + if c > w.complexity { + w.onFailure(lint.Failure{ + Confidence: 1, + Category: "maintenance", + Failure: fmt.Sprintf("function %s has cyclomatic complexity %d", funcName(fn), c), + Node: fn, + }) + } + } + } + return nil +} + +// funcName returns the name representation of a function or method: +// "(Type).Name" for methods or simply "Name" for functions. +func funcName(fn *ast.FuncDecl) string { + if fn.Recv != nil { + if fn.Recv.NumFields() > 0 { + typ := fn.Recv.List[0].Type + return fmt.Sprintf("(%s).%s", recvString(typ), fn.Name) + } + } + return fn.Name.Name +} + +// recvString returns a string representation of recv of the +// form "T", "*T", or "BADRECV" (if not a proper receiver type). +func recvString(recv ast.Expr) string { + switch t := recv.(type) { + case *ast.Ident: + return t.Name + case *ast.StarExpr: + return "*" + recvString(t.X) + } + return "BADRECV" +} + +// complexity calculates the cyclomatic complexity of a function. +func complexity(fn *ast.FuncDecl) int { + v := complexityVisitor{} + ast.Walk(&v, fn) + return v.Complexity +} + +type complexityVisitor struct { + // Complexity is the cyclomatic complexity + Complexity int +} + +// Visit implements the ast.Visitor interface. +func (v *complexityVisitor) Visit(n ast.Node) ast.Visitor { + switch n := n.(type) { + case *ast.FuncDecl, *ast.IfStmt, *ast.ForStmt, *ast.RangeStmt, *ast.CaseClause, *ast.CommClause: + v.Complexity++ + case *ast.BinaryExpr: + if n.Op == token.LAND || n.Op == token.LOR { + v.Complexity++ + } + } + return v +} diff --git a/vendor/github.com/mgechev/revive/rule/deep-exit.go b/vendor/github.com/mgechev/revive/rule/deep-exit.go new file mode 100644 index 000000000..f49e93dd4 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/deep-exit.go @@ -0,0 +1,94 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// DeepExitRule lints program exit at functions other than main or init. +type DeepExitRule struct{} + +// Apply applies the rule to given file. +func (r *DeepExitRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + var exitFunctions = map[string]map[string]bool{ + "os": map[string]bool{"Exit": true}, + "syscall": map[string]bool{"Exit": true}, + "log": map[string]bool{ + "Fatal": true, + "Fatalf": true, + "Fatalln": true, + "Panic": true, + "Panicf": true, + "Panicln": true, + }, + } + + w := lintDeepExit{onFailure, exitFunctions, file.IsTest()} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *DeepExitRule) Name() string { + return "deep-exit" +} + +type lintDeepExit struct { + onFailure func(lint.Failure) + exitFunctions map[string]map[string]bool + isTestFile bool +} + +func (w lintDeepExit) Visit(node ast.Node) ast.Visitor { + if fd, ok := node.(*ast.FuncDecl); ok { + if w.mustIgnore(fd) { + return nil // skip analysis of this function + } + + return w + } + + se, ok := node.(*ast.ExprStmt) + if !ok { + return w + } + ce, ok := se.X.(*ast.CallExpr) + if !ok { + return w + } + + fc, ok := ce.Fun.(*ast.SelectorExpr) + if !ok { + return w + } + id, ok := fc.X.(*ast.Ident) + if !ok { + return w + } + + fn := fc.Sel.Name + pkg := id.Name + if w.exitFunctions[pkg] != nil && w.exitFunctions[pkg][fn] { // it's a call to an exit function + w.onFailure(lint.Failure{ + Confidence: 1, + Node: ce, + Category: "bad practice", + Failure: fmt.Sprintf("calls to %s.%s only in main() or init() functions", pkg, fn), + }) + } + + return w +} + +func (w *lintDeepExit) mustIgnore(fd *ast.FuncDecl) bool { + fn := fd.Name.Name + + return fn == "init" || fn == "main" || (w.isTestFile && fn == "TestMain") +} diff --git a/vendor/github.com/mgechev/revive/rule/dot-imports.go b/vendor/github.com/mgechev/revive/rule/dot-imports.go new file mode 100644 index 000000000..78419d7d6 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/dot-imports.go @@ -0,0 +1,54 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// DotImportsRule lints given else constructs. +type DotImportsRule struct{} + +// Apply applies the rule to given file. +func (r *DotImportsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintImports{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *DotImportsRule) Name() string { + return "dot-imports" +} + +type lintImports struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintImports) Visit(_ ast.Node) ast.Visitor { + for i, is := range w.fileAst.Imports { + _ = i + if is.Name != nil && is.Name.Name == "." && !w.file.IsTest() { + w.onFailure(lint.Failure{ + Confidence: 1, + Failure: "should not use dot imports", + Node: is, + Category: "imports", + }) + } + } + return nil +} diff --git a/vendor/github.com/mgechev/revive/rule/duplicated-imports.go b/vendor/github.com/mgechev/revive/rule/duplicated-imports.go new file mode 100644 index 000000000..485b6a2ea --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/duplicated-imports.go @@ -0,0 +1,39 @@ +package rule + +import ( + "fmt" + + "github.com/mgechev/revive/lint" +) + +// DuplicatedImportsRule lints given else constructs. +type DuplicatedImportsRule struct{} + +// Apply applies the rule to given file. +func (r *DuplicatedImportsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + impPaths := map[string]struct{}{} + for _, imp := range file.AST.Imports { + path := imp.Path.Value + _, ok := impPaths[path] + if ok { + failures = append(failures, lint.Failure{ + Confidence: 1, + Failure: fmt.Sprintf("Package %s already imported", path), + Node: imp, + Category: "imports", + }) + continue + } + + impPaths[path] = struct{}{} + } + + return failures +} + +// Name returns the rule name. +func (r *DuplicatedImportsRule) Name() string { + return "duplicated-imports" +} diff --git a/vendor/github.com/mgechev/revive/rule/empty-block.go b/vendor/github.com/mgechev/revive/rule/empty-block.go new file mode 100644 index 000000000..7861394b3 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/empty-block.go @@ -0,0 +1,76 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// EmptyBlockRule lints given else constructs. +type EmptyBlockRule struct{} + +// Apply applies the rule to given file. +func (r *EmptyBlockRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintEmptyBlock{make([]*ast.BlockStmt, 0), onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *EmptyBlockRule) Name() string { + return "empty-block" +} + +type lintEmptyBlock struct { + ignore []*ast.BlockStmt + onFailure func(lint.Failure) +} + +func (w lintEmptyBlock) Visit(node ast.Node) ast.Visitor { + fd, ok := node.(*ast.FuncDecl) + if ok { + w.ignore = append(w.ignore, fd.Body) + return w + } + + fl, ok := node.(*ast.FuncLit) + if ok { + w.ignore = append(w.ignore, fl.Body) + return w + } + + block, ok := node.(*ast.BlockStmt) + if !ok { + return w + } + + if mustIgnore(block, w.ignore) { + return w + } + + if len(block.List) == 0 { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: block, + Category: "logic", + Failure: "this block is empty, you can remove it", + }) + } + + return w +} + +func mustIgnore(block *ast.BlockStmt, blackList []*ast.BlockStmt) bool { + for _, b := range blackList { + if b == block { + return true + } + } + return false +} diff --git a/vendor/github.com/mgechev/revive/rule/empty-lines.go b/vendor/github.com/mgechev/revive/rule/empty-lines.go new file mode 100644 index 000000000..61d9281bf --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/empty-lines.go @@ -0,0 +1,113 @@ +package rule + +import ( + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// EmptyLinesRule lints empty lines in blocks. +type EmptyLinesRule struct{} + +// Apply applies the rule to given file. +func (r *EmptyLinesRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintEmptyLines{file, file.CommentMap(), onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *EmptyLinesRule) Name() string { + return "empty-lines" +} + +type lintEmptyLines struct { + file *lint.File + cmap ast.CommentMap + onFailure func(lint.Failure) +} + +func (w lintEmptyLines) Visit(node ast.Node) ast.Visitor { + block, ok := node.(*ast.BlockStmt) + if !ok { + return w + } + + w.checkStart(block) + w.checkEnd(block) + + return w +} + +func (w lintEmptyLines) checkStart(block *ast.BlockStmt) { + if len(block.List) == 0 { + return + } + + start := w.position(block.Lbrace) + firstNode := block.List[0] + + if w.commentBetween(start, firstNode) { + return + } + + first := w.position(firstNode.Pos()) + if first.Line-start.Line > 1 { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: block, + Category: "style", + Failure: "extra empty line at the start of a block", + }) + } +} + +func (w lintEmptyLines) checkEnd(block *ast.BlockStmt) { + if len(block.List) < 1 { + return + } + + end := w.position(block.Rbrace) + lastNode := block.List[len(block.List)-1] + + if w.commentBetween(end, lastNode) { + return + } + + last := w.position(lastNode.End()) + if end.Line-last.Line > 1 { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: lastNode, + Category: "style", + Failure: "extra empty line at the end of a block", + }) + } +} + +func (w lintEmptyLines) commentBetween(position token.Position, node ast.Node) bool { + comments := w.cmap.Filter(node).Comments() + if len(comments) == 0 { + return false + } + + for _, comment := range comments { + start, end := w.position(comment.Pos()), w.position(comment.End()) + if start.Line-position.Line == 1 || position.Line-end.Line == 1 { + return true + } + } + + return false +} + +func (w lintEmptyLines) position(pos token.Pos) token.Position { + return w.file.ToPosition(pos) +} diff --git a/vendor/github.com/mgechev/revive/rule/error-naming.go b/vendor/github.com/mgechev/revive/rule/error-naming.go new file mode 100644 index 000000000..3a1080625 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/error-naming.go @@ -0,0 +1,79 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + "strings" + + "github.com/mgechev/revive/lint" +) + +// ErrorNamingRule lints given else constructs. +type ErrorNamingRule struct{} + +// Apply applies the rule to given file. +func (r *ErrorNamingRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintErrors{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ErrorNamingRule) Name() string { + return "error-naming" +} + +type lintErrors struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintErrors) Visit(_ ast.Node) ast.Visitor { + for _, decl := range w.fileAst.Decls { + gd, ok := decl.(*ast.GenDecl) + if !ok || gd.Tok != token.VAR { + continue + } + for _, spec := range gd.Specs { + spec := spec.(*ast.ValueSpec) + if len(spec.Names) != 1 || len(spec.Values) != 1 { + continue + } + ce, ok := spec.Values[0].(*ast.CallExpr) + if !ok { + continue + } + if !isPkgDot(ce.Fun, "errors", "New") && !isPkgDot(ce.Fun, "fmt", "Errorf") { + continue + } + + id := spec.Names[0] + prefix := "err" + if id.IsExported() { + prefix = "Err" + } + if !strings.HasPrefix(id.Name, prefix) { + w.onFailure(lint.Failure{ + Node: id, + Confidence: 0.9, + Category: "naming", + Failure: fmt.Sprintf("error var %s should have name of the form %sFoo", id.Name, prefix), + }) + } + } + } + return nil +} diff --git a/vendor/github.com/mgechev/revive/rule/error-return.go b/vendor/github.com/mgechev/revive/rule/error-return.go new file mode 100644 index 000000000..737d8c66f --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/error-return.go @@ -0,0 +1,67 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// ErrorReturnRule lints given else constructs. +type ErrorReturnRule struct{} + +// Apply applies the rule to given file. +func (r *ErrorReturnRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintErrorReturn{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ErrorReturnRule) Name() string { + return "error-return" +} + +type lintErrorReturn struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintErrorReturn) Visit(n ast.Node) ast.Visitor { + fn, ok := n.(*ast.FuncDecl) + if !ok || fn.Type.Results == nil { + return w + } + ret := fn.Type.Results.List + if len(ret) <= 1 { + return w + } + if isIdent(ret[len(ret)-1].Type, "error") { + return nil + } + // An error return parameter should be the last parameter. + // Flag any error parameters found before the last. + for _, r := range ret[:len(ret)-1] { + if isIdent(r.Type, "error") { + w.onFailure(lint.Failure{ + Category: "arg-order", + Confidence: 0.9, + Node: fn, + Failure: "error should be the last type when returning multiple items", + }) + break // only flag one + } + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/error-strings.go b/vendor/github.com/mgechev/revive/rule/error-strings.go new file mode 100644 index 000000000..b8a5b7ed7 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/error-strings.go @@ -0,0 +1,98 @@ +package rule + +import ( + "go/ast" + "go/token" + "strconv" + "unicode" + "unicode/utf8" + + "github.com/mgechev/revive/lint" +) + +// ErrorStringsRule lints given else constructs. +type ErrorStringsRule struct{} + +// Apply applies the rule to given file. +func (r *ErrorStringsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintErrorStrings{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ErrorStringsRule) Name() string { + return "error-strings" +} + +type lintErrorStrings struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintErrorStrings) Visit(n ast.Node) ast.Visitor { + ce, ok := n.(*ast.CallExpr) + if !ok { + return w + } + if !isPkgDot(ce.Fun, "errors", "New") && !isPkgDot(ce.Fun, "fmt", "Errorf") { + return w + } + if len(ce.Args) < 1 { + return w + } + str, ok := ce.Args[0].(*ast.BasicLit) + if !ok || str.Kind != token.STRING { + return w + } + s, _ := strconv.Unquote(str.Value) // can assume well-formed Go + if s == "" { + return w + } + clean, conf := lintErrorString(s) + if clean { + return w + } + + w.onFailure(lint.Failure{ + Node: str, + Confidence: conf, + Category: "errors", + Failure: "error strings should not be capitalized or end with punctuation or a newline", + }) + return w +} + +func lintErrorString(s string) (isClean bool, conf float64) { + const basicConfidence = 0.8 + const capConfidence = basicConfidence - 0.2 + first, firstN := utf8.DecodeRuneInString(s) + last, _ := utf8.DecodeLastRuneInString(s) + if last == '.' || last == ':' || last == '!' || last == '\n' { + return false, basicConfidence + } + if unicode.IsUpper(first) { + // People use proper nouns and exported Go identifiers in error strings, + // so decrease the confidence of warnings for capitalization. + if len(s) <= firstN { + return false, capConfidence + } + // Flag strings starting with something that doesn't look like an initialism. + if second, _ := utf8.DecodeRuneInString(s[firstN:]); !unicode.IsUpper(second) { + return false, capConfidence + } + } + return true, 0 +} diff --git a/vendor/github.com/mgechev/revive/rule/errorf.go b/vendor/github.com/mgechev/revive/rule/errorf.go new file mode 100644 index 000000000..1bffbab5b --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/errorf.go @@ -0,0 +1,93 @@ +package rule + +import ( + "fmt" + "go/ast" + "regexp" + "strings" + + "github.com/mgechev/revive/lint" +) + +// ErrorfRule lints given else constructs. +type ErrorfRule struct{} + +// Apply applies the rule to given file. +func (r *ErrorfRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintErrorf{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + file.Pkg.TypeCheck() + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ErrorfRule) Name() string { + return "errorf" +} + +type lintErrorf struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintErrorf) Visit(n ast.Node) ast.Visitor { + ce, ok := n.(*ast.CallExpr) + if !ok || len(ce.Args) != 1 { + return w + } + isErrorsNew := isPkgDot(ce.Fun, "errors", "New") + var isTestingError bool + se, ok := ce.Fun.(*ast.SelectorExpr) + if ok && se.Sel.Name == "Error" { + if typ := w.file.Pkg.TypeOf(se.X); typ != nil { + isTestingError = typ.String() == "*testing.T" + } + } + if !isErrorsNew && !isTestingError { + return w + } + arg := ce.Args[0] + ce, ok = arg.(*ast.CallExpr) + if !ok || !isPkgDot(ce.Fun, "fmt", "Sprintf") { + return w + } + errorfPrefix := "fmt" + if isTestingError { + errorfPrefix = w.file.Render(se.X) + } + + failure := lint.Failure{ + Category: "errors", + Node: n, + Confidence: 1, + Failure: fmt.Sprintf("should replace %s(fmt.Sprintf(...)) with %s.Errorf(...)", w.file.Render(se), errorfPrefix), + } + + m := srcLineWithMatch(w.file, ce, `^(.*)`+w.file.Render(se)+`\(fmt\.Sprintf\((.*)\)\)(.*)$`) + if m != nil { + failure.ReplacementLine = m[1] + errorfPrefix + ".Errorf(" + m[2] + ")" + m[3] + } + + w.onFailure(failure) + + return w +} + +func srcLineWithMatch(file *lint.File, node ast.Node, pattern string) (m []string) { + line := srcLine(file.Content(), file.ToPosition(node.Pos())) + line = strings.TrimSuffix(line, "\n") + rx := regexp.MustCompile(pattern) + return rx.FindStringSubmatch(line) +} diff --git a/vendor/github.com/mgechev/revive/rule/exported.go b/vendor/github.com/mgechev/revive/rule/exported.go new file mode 100644 index 000000000..b68f2bacc --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/exported.go @@ -0,0 +1,272 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + "strings" + "unicode" + "unicode/utf8" + + "github.com/mgechev/revive/lint" +) + +// ExportedRule lints given else constructs. +type ExportedRule struct{} + +// Apply applies the rule to given file. +func (r *ExportedRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + if isTest(file) { + return failures + } + + fileAst := file.AST + walker := lintExported{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + genDeclMissingComments: make(map[*ast.GenDecl]bool), + } + + ast.Walk(&walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ExportedRule) Name() string { + return "exported" +} + +type lintExported struct { + file *lint.File + fileAst *ast.File + lastGen *ast.GenDecl + genDeclMissingComments map[*ast.GenDecl]bool + onFailure func(lint.Failure) +} + +func (w *lintExported) lintFuncDoc(fn *ast.FuncDecl) { + if !ast.IsExported(fn.Name.Name) { + // func is unexported + return + } + kind := "function" + name := fn.Name.Name + if fn.Recv != nil && len(fn.Recv.List) > 0 { + // method + kind = "method" + recv := receiverType(fn) + if !ast.IsExported(recv) { + // receiver is unexported + return + } + if commonMethods[name] { + return + } + switch name { + case "Len", "Less", "Swap": + if w.file.Pkg.Sortable[recv] { + return + } + } + name = recv + "." + name + } + if fn.Doc == nil { + w.onFailure(lint.Failure{ + Node: fn, + Confidence: 1, + Category: "comments", + Failure: fmt.Sprintf("exported %s %s should have comment or be unexported", kind, name), + }) + return + } + s := normalizeText(fn.Doc.Text()) + prefix := fn.Name.Name + " " + if !strings.HasPrefix(s, prefix) { + w.onFailure(lint.Failure{ + Node: fn.Doc, + Confidence: 0.8, + Category: "comments", + Failure: fmt.Sprintf(`comment on exported %s %s should be of the form "%s..."`, kind, name, prefix), + }) + } +} + +func (w *lintExported) checkStutter(id *ast.Ident, thing string) { + pkg, name := w.fileAst.Name.Name, id.Name + if !ast.IsExported(name) { + // unexported name + return + } + // A name stutters if the package name is a strict prefix + // and the next character of the name starts a new word. + if len(name) <= len(pkg) { + // name is too short to stutter. + // This permits the name to be the same as the package name. + return + } + if !strings.EqualFold(pkg, name[:len(pkg)]) { + return + } + // We can assume the name is well-formed UTF-8. + // If the next rune after the package name is uppercase or an underscore + // the it's starting a new word and thus this name stutters. + rem := name[len(pkg):] + if next, _ := utf8.DecodeRuneInString(rem); next == '_' || unicode.IsUpper(next) { + w.onFailure(lint.Failure{ + Node: id, + Confidence: 0.8, + Category: "naming", + Failure: fmt.Sprintf("%s name will be used as %s.%s by other packages, and that stutters; consider calling this %s", thing, pkg, name, rem), + }) + } +} + +func (w *lintExported) lintTypeDoc(t *ast.TypeSpec, doc *ast.CommentGroup) { + if !ast.IsExported(t.Name.Name) { + return + } + if doc == nil { + w.onFailure(lint.Failure{ + Node: t, + Confidence: 1, + Category: "comments", + Failure: fmt.Sprintf("exported type %v should have comment or be unexported", t.Name), + }) + return + } + + s := normalizeText(doc.Text()) + articles := [...]string{"A", "An", "The", "This"} + for _, a := range articles { + if t.Name.Name == a { + continue + } + if strings.HasPrefix(s, a+" ") { + s = s[len(a)+1:] + break + } + } + if !strings.HasPrefix(s, t.Name.Name+" ") { + w.onFailure(lint.Failure{ + Node: doc, + Confidence: 1, + Category: "comments", + Failure: fmt.Sprintf(`comment on exported type %v should be of the form "%v ..." (with optional leading article)`, t.Name, t.Name), + }) + } +} + +func (w *lintExported) lintValueSpecDoc(vs *ast.ValueSpec, gd *ast.GenDecl, genDeclMissingComments map[*ast.GenDecl]bool) { + kind := "var" + if gd.Tok == token.CONST { + kind = "const" + } + + if len(vs.Names) > 1 { + // Check that none are exported except for the first. + for _, n := range vs.Names[1:] { + if ast.IsExported(n.Name) { + w.onFailure(lint.Failure{ + Category: "comments", + Confidence: 1, + Failure: fmt.Sprintf("exported %s %s should have its own declaration", kind, n.Name), + Node: vs, + }) + return + } + } + } + + // Only one name. + name := vs.Names[0].Name + if !ast.IsExported(name) { + return + } + + if vs.Doc == nil && gd.Doc == nil { + if genDeclMissingComments[gd] { + return + } + block := "" + if kind == "const" && gd.Lparen.IsValid() { + block = " (or a comment on this block)" + } + w.onFailure(lint.Failure{ + Confidence: 1, + Node: vs, + Category: "comments", + Failure: fmt.Sprintf("exported %s %s should have comment%s or be unexported", kind, name, block), + }) + genDeclMissingComments[gd] = true + return + } + // If this GenDecl has parens and a comment, we don't check its comment form. + if gd.Lparen.IsValid() && gd.Doc != nil { + return + } + // The relevant text to check will be on either vs.Doc or gd.Doc. + // Use vs.Doc preferentially. + doc := vs.Doc + if doc == nil { + doc = gd.Doc + } + prefix := name + " " + s := normalizeText(doc.Text()) + if !strings.HasPrefix(s, prefix) { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: doc, + Category: "comments", + Failure: fmt.Sprintf(`comment on exported %s %s should be of the form "%s..."`, kind, name, prefix), + }) + } +} + +// normalizeText is a helper function that normalizes comment strings by: +// * removing one leading space +// +// This function is needed because ast.CommentGroup.Text() does not handle //-style and /*-style comments uniformly +func normalizeText(t string) string { + return strings.TrimPrefix(t, " ") +} + +func (w *lintExported) Visit(n ast.Node) ast.Visitor { + switch v := n.(type) { + case *ast.GenDecl: + if v.Tok == token.IMPORT { + return nil + } + // token.CONST, token.TYPE or token.VAR + w.lastGen = v + return w + case *ast.FuncDecl: + w.lintFuncDoc(v) + if v.Recv == nil { + // Only check for stutter on functions, not methods. + // Method names are not used package-qualified. + w.checkStutter(v.Name, "func") + } + // Don't proceed inside funcs. + return nil + case *ast.TypeSpec: + // inside a GenDecl, which usually has the doc + doc := v.Doc + if doc == nil { + doc = w.lastGen.Doc + } + w.lintTypeDoc(v, doc) + w.checkStutter(v.Name, "type") + // Don't proceed inside types. + return nil + case *ast.ValueSpec: + w.lintValueSpecDoc(v, w.lastGen, w.genDeclMissingComments) + return nil + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/file-header.go b/vendor/github.com/mgechev/revive/rule/file-header.go new file mode 100644 index 000000000..6df974e91 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/file-header.go @@ -0,0 +1,69 @@ +package rule + +import ( + "regexp" + + "github.com/mgechev/revive/lint" +) + +// FileHeaderRule lints given else constructs. +type FileHeaderRule struct{} + +var ( + multiRegexp = regexp.MustCompile("^/\\*") + singleRegexp = regexp.MustCompile("^//") +) + +// Apply applies the rule to given file. +func (r *FileHeaderRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + if len(arguments) != 1 { + panic(`invalid configuration for "file-header" rule`) + } + + header, ok := arguments[0].(string) + if !ok { + panic(`invalid argument for "file-header" rule: first argument should be a string`) + } + + failure := []lint.Failure{ + { + Node: file.AST, + Confidence: 1, + Failure: "the file doesn't have an appropriate header", + }, + } + + if len(file.AST.Comments) == 0 { + return failure + } + + g := file.AST.Comments[0] + if g == nil { + return failure + } + comment := "" + for _, c := range g.List { + text := c.Text + if multiRegexp.Match([]byte(text)) { + text = text[2 : len(text)-2] + } else if singleRegexp.Match([]byte(text)) { + text = text[2:] + } + comment += text + } + + regex, err := regexp.Compile(header) + if err != nil { + panic(err.Error()) + } + + if !regex.Match([]byte(comment)) { + return failure + } + return nil +} + +// Name returns the rule name. +func (r *FileHeaderRule) Name() string { + return "file-header" +} diff --git a/vendor/github.com/mgechev/revive/rule/flag-param.go b/vendor/github.com/mgechev/revive/rule/flag-param.go new file mode 100644 index 000000000..6cb6daea9 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/flag-param.go @@ -0,0 +1,104 @@ +package rule + +import ( + "fmt" + "github.com/mgechev/revive/lint" + "go/ast" +) + +// FlagParamRule lints given else constructs. +type FlagParamRule struct{} + +// Apply applies the rule to given file. +func (r *FlagParamRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintFlagParamRule{onFailure: onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *FlagParamRule) Name() string { + return "flag-parameter" +} + +type lintFlagParamRule struct { + onFailure func(lint.Failure) +} + +func (w lintFlagParamRule) Visit(node ast.Node) ast.Visitor { + fd, ok := node.(*ast.FuncDecl) + if !ok { + return w + } + + if fd.Body == nil { + return nil // skip whole function declaration + } + + for _, p := range fd.Type.Params.List { + t := p.Type + + id, ok := t.(*ast.Ident) + if !ok { + continue + } + + if id.Name != "bool" { + continue + } + + cv := conditionVisitor{p.Names, fd, w} + ast.Walk(cv, fd.Body) + } + + return w +} + +type conditionVisitor struct { + ids []*ast.Ident + fd *ast.FuncDecl + linter lintFlagParamRule +} + +func (w conditionVisitor) Visit(node ast.Node) ast.Visitor { + ifStmt, ok := node.(*ast.IfStmt) + if !ok { + return w + } + + fselect := func(n ast.Node) bool { + ident, ok := n.(*ast.Ident) + if !ok { + return false + } + + for _, id := range w.ids { + if ident.Name == id.Name { + return true + } + } + + return false + } + + uses := pick(ifStmt.Cond, fselect, nil) + + if len(uses) < 1 { + return w + } + + w.linter.onFailure(lint.Failure{ + Confidence: 1, + Node: w.fd.Type.Params, + Category: "bad practice", + Failure: fmt.Sprintf("parameter '%s' seems to be a control flag, avoid control coupling", uses[0]), + }) + + return nil +} diff --git a/vendor/github.com/mgechev/revive/rule/function-result-limit.go b/vendor/github.com/mgechev/revive/rule/function-result-limit.go new file mode 100644 index 000000000..1850fc419 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/function-result-limit.go @@ -0,0 +1,68 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// FunctionResultsLimitRule lints given else constructs. +type FunctionResultsLimitRule struct{} + +// Apply applies the rule to given file. +func (r *FunctionResultsLimitRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + if len(arguments) != 1 { + panic(`invalid configuration for "function-result-limit"`) + } + + max, ok := arguments[0].(int64) // Alt. non panicking version + if !ok { + panic(fmt.Sprintf(`invalid value passed as return results number to the "function-result-limit" rule; need int64 but got %T`, arguments[0])) + } + if max < 0 { + panic(`the value passed as return results number to the "function-result-limit" rule cannot be negative`) + } + + var failures []lint.Failure + + walker := lintFunctionResultsNum{ + max: int(max), + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *FunctionResultsLimitRule) Name() string { + return "function-result-limit" +} + +type lintFunctionResultsNum struct { + max int + onFailure func(lint.Failure) +} + +func (w lintFunctionResultsNum) Visit(n ast.Node) ast.Visitor { + node, ok := n.(*ast.FuncDecl) + if ok { + num := 0 + if node.Type.Results != nil { + num = node.Type.Results.NumFields() + } + if num > w.max { + w.onFailure(lint.Failure{ + Confidence: 1, + Failure: fmt.Sprintf("maximum number of return results per function exceeded; max %d but got %d", w.max, num), + Node: node.Type, + }) + return w + } + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/get-return.go b/vendor/github.com/mgechev/revive/rule/get-return.go new file mode 100644 index 000000000..494ab6669 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/get-return.go @@ -0,0 +1,70 @@ +package rule + +import ( + "fmt" + "go/ast" + "strings" + + "github.com/mgechev/revive/lint" +) + +// GetReturnRule lints given else constructs. +type GetReturnRule struct{} + +// Apply applies the rule to given file. +func (r *GetReturnRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintReturnRule{onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *GetReturnRule) Name() string { + return "get-return" +} + +type lintReturnRule struct { + onFailure func(lint.Failure) +} + +func isGetter(name string) bool { + if strings.HasPrefix(strings.ToUpper(name), "GET") { + if len(name) > 3 { + c := name[3] + return !(c >= 'a' && c <= 'z') + } + } + + return false +} + +func hasResults(rs *ast.FieldList) bool { + return rs != nil && len(rs.List) > 0 +} + +func (w lintReturnRule) Visit(node ast.Node) ast.Visitor { + fd, ok := node.(*ast.FuncDecl) + if !ok { + return w + } + + if !isGetter(fd.Name.Name) { + return w + } + if !hasResults(fd.Type.Results) { + w.onFailure(lint.Failure{ + Confidence: 0.8, + Node: fd, + Category: "logic", + Failure: fmt.Sprintf("function '%s' seems to be a getter but it does not return any result", fd.Name.Name), + }) + } + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/if-return.go b/vendor/github.com/mgechev/revive/rule/if-return.go new file mode 100644 index 000000000..c275d2766 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/if-return.go @@ -0,0 +1,115 @@ +package rule + +import ( + "go/ast" + "go/token" + "strings" + + "github.com/mgechev/revive/lint" +) + +// IfReturnRule lints given else constructs. +type IfReturnRule struct{} + +// Apply applies the rule to given file. +func (r *IfReturnRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + astFile := file.AST + w := &lintElseError{astFile, onFailure} + ast.Walk(w, astFile) + return failures +} + +// Name returns the rule name. +func (r *IfReturnRule) Name() string { + return "if-return" +} + +type lintElseError struct { + file *ast.File + onFailure func(lint.Failure) +} + +func (w *lintElseError) Visit(node ast.Node) ast.Visitor { + switch v := node.(type) { + case *ast.BlockStmt: + for i := 0; i < len(v.List)-1; i++ { + // if var := whatever; var != nil { return var } + s, ok := v.List[i].(*ast.IfStmt) + if !ok || s.Body == nil || len(s.Body.List) != 1 || s.Else != nil { + continue + } + assign, ok := s.Init.(*ast.AssignStmt) + if !ok || len(assign.Lhs) != 1 || !(assign.Tok == token.DEFINE || assign.Tok == token.ASSIGN) { + continue + } + id, ok := assign.Lhs[0].(*ast.Ident) + if !ok { + continue + } + expr, ok := s.Cond.(*ast.BinaryExpr) + if !ok || expr.Op != token.NEQ { + continue + } + if lhs, ok := expr.X.(*ast.Ident); !ok || lhs.Name != id.Name { + continue + } + if rhs, ok := expr.Y.(*ast.Ident); !ok || rhs.Name != "nil" { + continue + } + r, ok := s.Body.List[0].(*ast.ReturnStmt) + if !ok || len(r.Results) != 1 { + continue + } + if r, ok := r.Results[0].(*ast.Ident); !ok || r.Name != id.Name { + continue + } + + // return nil + r, ok = v.List[i+1].(*ast.ReturnStmt) + if !ok || len(r.Results) != 1 { + continue + } + if r, ok := r.Results[0].(*ast.Ident); !ok || r.Name != "nil" { + continue + } + + // check if there are any comments explaining the construct, don't emit an error if there are some. + if containsComments(s.Pos(), r.Pos(), w.file) { + continue + } + + w.onFailure(lint.Failure{ + Confidence: .9, + Node: v.List[i], + Failure: "redundant if ...; err != nil check, just return error instead.", + }) + } + } + return w +} + +func containsComments(start, end token.Pos, f *ast.File) bool { + for _, cgroup := range f.Comments { + comments := cgroup.List + if comments[0].Slash >= end { + // All comments starting with this group are after end pos. + return false + } + if comments[len(comments)-1].Slash < start { + // Comments group ends before start pos. + continue + } + for _, c := range comments { + if start <= c.Slash && c.Slash < end && !strings.HasPrefix(c.Text, "// MATCH ") { + return true + } + } + } + return false +} diff --git a/vendor/github.com/mgechev/revive/rule/import-shadowing.go b/vendor/github.com/mgechev/revive/rule/import-shadowing.go new file mode 100644 index 000000000..b78234c59 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/import-shadowing.go @@ -0,0 +1,102 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + "strings" + + "github.com/mgechev/revive/lint" +) + +// ImportShadowingRule lints given else constructs. +type ImportShadowingRule struct{} + +// Apply applies the rule to given file. +func (r *ImportShadowingRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + importNames := map[string]struct{}{} + for _, imp := range file.AST.Imports { + importNames[getName(imp)] = struct{}{} + } + + fileAst := file.AST + walker := importShadowing{ + importNames: importNames, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + alreadySeen: map[*ast.Object]struct{}{}, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ImportShadowingRule) Name() string { + return "import-shadowing" +} + +func getName(imp *ast.ImportSpec) string { + const pathSep = "/" + const strDelim = `"` + if imp.Name != nil { + return imp.Name.Name + } + + path := imp.Path.Value + i := strings.LastIndex(path, pathSep) + if i == -1 { + return strings.Trim(path, strDelim) + } + + return strings.Trim(path[i+1:], strDelim) +} + +type importShadowing struct { + importNames map[string]struct{} + onFailure func(lint.Failure) + alreadySeen map[*ast.Object]struct{} +} + +// Visit visits AST nodes and checks if id nodes (ast.Ident) shadow an import name +func (w importShadowing) Visit(n ast.Node) ast.Visitor { + switch n := n.(type) { + case *ast.AssignStmt: + if n.Tok == token.DEFINE { + return w // analyze variable declarations of the form id := expr + } + + return nil // skip assigns of the form id = expr (not an id declaration) + case *ast.CallExpr, // skip call expressions (not an id declaration) + *ast.ImportSpec, // skip import section subtree because we already have the list of imports + *ast.KeyValueExpr, // skip analysis of key-val expressions ({key:value}): ids of such expressions, even the same of an import name, do not shadow the import name + *ast.ReturnStmt, // skip skipping analysis of returns, ids in expression were already analyzed + *ast.SelectorExpr, // skip analysis of selector expressions (anId.otherId): because if anId shadows an import name, it was already detected, and otherId does not shadows the import name + *ast.StructType: // skip analysis of struct type because struct fields can not shadow an import name + return nil + case *ast.Ident: + id := n.Name + if id == "_" { + return w // skip _ id + } + + _, isImportName := w.importNames[id] + _, alreadySeen := w.alreadySeen[n.Obj] + if isImportName && !alreadySeen { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: n, + Category: "namming", + Failure: fmt.Sprintf("The name '%s' shadows an import name", id), + }) + + w.alreadySeen[n.Obj] = struct{}{} + } + } + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/imports-blacklist.go b/vendor/github.com/mgechev/revive/rule/imports-blacklist.go new file mode 100644 index 000000000..31ef901e5 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/imports-blacklist.go @@ -0,0 +1,52 @@ +package rule + +import ( + "fmt" + + "github.com/mgechev/revive/lint" +) + +// ImportsBlacklistRule lints given else constructs. +type ImportsBlacklistRule struct{} + +// Apply applies the rule to given file. +func (r *ImportsBlacklistRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + var failures []lint.Failure + + if file.IsTest() { + return failures // skip, test file + } + + blacklist := make(map[string]bool, len(arguments)) + + for _, arg := range arguments { + argStr, ok := arg.(string) + if !ok { + panic(fmt.Sprintf("Invalid argument to the imports-blacklist rule. Expecting a string, got %T", arg)) + } + // we add quotes if not present, because when parsed, the value of the AST node, will be quoted + if len(argStr) > 2 && argStr[0] != '"' && argStr[len(argStr)-1] != '"' { + argStr = fmt.Sprintf(`"%s"`, argStr) + } + blacklist[argStr] = true + } + + for _, is := range file.AST.Imports { + path := is.Path + if path != nil && blacklist[path.Value] { + failures = append(failures, lint.Failure{ + Confidence: 1, + Failure: "should not use the following blacklisted import: " + path.Value, + Node: is, + Category: "imports", + }) + } + } + + return failures +} + +// Name returns the rule name. +func (r *ImportsBlacklistRule) Name() string { + return "imports-blacklist" +} diff --git a/vendor/github.com/mgechev/revive/rule/increment-decrement.go b/vendor/github.com/mgechev/revive/rule/increment-decrement.go new file mode 100644 index 000000000..5d6b17671 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/increment-decrement.go @@ -0,0 +1,74 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// IncrementDecrementRule lints given else constructs. +type IncrementDecrementRule struct{} + +// Apply applies the rule to given file. +func (r *IncrementDecrementRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintIncrementDecrement{ + file: file, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *IncrementDecrementRule) Name() string { + return "increment-decrement" +} + +type lintIncrementDecrement struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintIncrementDecrement) Visit(n ast.Node) ast.Visitor { + as, ok := n.(*ast.AssignStmt) + if !ok { + return w + } + if len(as.Lhs) != 1 { + return w + } + if !isOne(as.Rhs[0]) { + return w + } + var suffix string + switch as.Tok { + case token.ADD_ASSIGN: + suffix = "++" + case token.SUB_ASSIGN: + suffix = "--" + default: + return w + } + w.onFailure(lint.Failure{ + Confidence: 0.8, + Node: as, + Category: "unary-op", + Failure: fmt.Sprintf("should replace %s with %s%s", w.file.Render(as), w.file.Render(as.Lhs[0]), suffix), + }) + return w +} + +func isOne(expr ast.Expr) bool { + lit, ok := expr.(*ast.BasicLit) + return ok && lit.Kind == token.INT && lit.Value == "1" +} diff --git a/vendor/github.com/mgechev/revive/rule/indent-error-flow.go b/vendor/github.com/mgechev/revive/rule/indent-error-flow.go new file mode 100644 index 000000000..4c9799b2a --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/indent-error-flow.go @@ -0,0 +1,78 @@ +package rule + +import ( + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// IndentErrorFlowRule lints given else constructs. +type IndentErrorFlowRule struct{} + +// Apply applies the rule to given file. +func (r *IndentErrorFlowRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintElse{make(map[*ast.IfStmt]bool), onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *IndentErrorFlowRule) Name() string { + return "indent-error-flow" +} + +type lintElse struct { + ignore map[*ast.IfStmt]bool + onFailure func(lint.Failure) +} + +func (w lintElse) Visit(node ast.Node) ast.Visitor { + ifStmt, ok := node.(*ast.IfStmt) + if !ok || ifStmt.Else == nil { + return w + } + if w.ignore[ifStmt] { + if elseif, ok := ifStmt.Else.(*ast.IfStmt); ok { + w.ignore[elseif] = true + } + return w + } + if elseif, ok := ifStmt.Else.(*ast.IfStmt); ok { + w.ignore[elseif] = true + return w + } + if _, ok := ifStmt.Else.(*ast.BlockStmt); !ok { + // only care about elses without conditions + return w + } + if len(ifStmt.Body.List) == 0 { + return w + } + shortDecl := false // does the if statement have a ":=" initialization statement? + if ifStmt.Init != nil { + if as, ok := ifStmt.Init.(*ast.AssignStmt); ok && as.Tok == token.DEFINE { + shortDecl = true + } + } + lastStmt := ifStmt.Body.List[len(ifStmt.Body.List)-1] + if _, ok := lastStmt.(*ast.ReturnStmt); ok { + extra := "" + if shortDecl { + extra = " (move short variable declaration to its own line if necessary)" + } + w.onFailure(lint.Failure{ + Confidence: 1, + Node: ifStmt.Else, + Category: "indent", + Failure: "if block ends with a return statement, so drop this else and outdent its block" + extra, + }) + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/line-length-limit.go b/vendor/github.com/mgechev/revive/rule/line-length-limit.go new file mode 100644 index 000000000..5ee057079 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/line-length-limit.go @@ -0,0 +1,84 @@ +package rule + +import ( + "bufio" + "bytes" + "fmt" + "go/token" + "strings" + "unicode/utf8" + + "github.com/mgechev/revive/lint" +) + +// LineLengthLimitRule lints given else constructs. +type LineLengthLimitRule struct{} + +// Apply applies the rule to given file. +func (r *LineLengthLimitRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + if len(arguments) != 1 { + panic(`invalid configuration for "line-length-limit"`) + } + + max, ok := arguments[0].(int64) // Alt. non panicking version + if !ok || max < 0 { + panic(`invalid value passed as argument number to the "line-length-limit" rule`) + } + + var failures []lint.Failure + checker := lintLineLengthNum{ + max: int(max), + file: file, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + checker.check() + + return failures +} + +// Name returns the rule name. +func (r *LineLengthLimitRule) Name() string { + return "line-length-limit" +} + +type lintLineLengthNum struct { + max int + file *lint.File + onFailure func(lint.Failure) +} + +func (r lintLineLengthNum) check() { + f := bytes.NewReader(r.file.Content()) + spaces := strings.Repeat(" ", 4) // tab width = 4 + l := 1 + s := bufio.NewScanner(f) + for s.Scan() { + t := s.Text() + t = strings.Replace(t, "\t", spaces, -1) + c := utf8.RuneCountInString(t) + if c > r.max { + r.onFailure(lint.Failure{ + Category: "code-style", + Position: lint.FailurePosition{ + // Offset not set; it is non-trivial, and doesn't appear to be needed. + Start: token.Position{ + Filename: r.file.Name, + Line: l, + Column: 0, + }, + End: token.Position{ + Filename: r.file.Name, + Line: l, + Column: c, + }, + }, + Confidence: 1, + Failure: fmt.Sprintf("line is %d characters, out of limit %d", c, r.max), + }) + } + l++ + } +} diff --git a/vendor/github.com/mgechev/revive/rule/max-public-structs.go b/vendor/github.com/mgechev/revive/rule/max-public-structs.go new file mode 100644 index 000000000..9a2d07cbc --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/max-public-structs.go @@ -0,0 +1,67 @@ +package rule + +import ( + "go/ast" + + "strings" + + "github.com/mgechev/revive/lint" +) + +// MaxPublicStructsRule lints given else constructs. +type MaxPublicStructsRule struct{} + +// Apply applies the rule to given file. +func (r *MaxPublicStructsRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := &lintMaxPublicStructs{ + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, fileAst) + + max, ok := arguments[0].(int64) // Alt. non panicking version + if !ok { + panic(`invalid value passed as argument number to the "max-public-structs" rule`) + } + + if walker.current > max { + walker.onFailure(lint.Failure{ + Failure: "you have exceeded the maximum number of public struct declarations", + Confidence: 1, + Node: fileAst, + Category: "style", + }) + } + + return failures +} + +// Name returns the rule name. +func (r *MaxPublicStructsRule) Name() string { + return "max-public-structs" +} + +type lintMaxPublicStructs struct { + current int64 + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w *lintMaxPublicStructs) Visit(n ast.Node) ast.Visitor { + switch v := n.(type) { + case *ast.TypeSpec: + name := v.Name.Name + first := string(name[0]) + if strings.ToUpper(first) == first { + w.current++ + } + break + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/modifies-param.go b/vendor/github.com/mgechev/revive/rule/modifies-param.go new file mode 100644 index 000000000..55136e6c8 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/modifies-param.go @@ -0,0 +1,80 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// ModifiesParamRule lints given else constructs. +type ModifiesParamRule struct{} + +// Apply applies the rule to given file. +func (r *ModifiesParamRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintModifiesParamRule{onFailure: onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *ModifiesParamRule) Name() string { + return "modifies-parameter" +} + +type lintModifiesParamRule struct { + params map[string]bool + onFailure func(lint.Failure) +} + +func retrieveParamNames(pl []*ast.Field) map[string]bool { + result := make(map[string]bool, len(pl)) + for _, p := range pl { + for _, n := range p.Names { + if n.Name == "_" { + continue + } + + result[n.Name] = true + } + } + return result +} + +func (w lintModifiesParamRule) Visit(node ast.Node) ast.Visitor { + switch v := node.(type) { + case *ast.FuncDecl: + w.params = retrieveParamNames(v.Type.Params.List) + case *ast.IncDecStmt: + if id, ok := v.X.(*ast.Ident); ok { + checkParam(id, &w) + } + case *ast.AssignStmt: + lhs := v.Lhs + for _, e := range lhs { + id, ok := e.(*ast.Ident) + if ok { + checkParam(id, &w) + } + } + } + + return w +} + +func checkParam(id *ast.Ident, w *lintModifiesParamRule) { + if w.params[id.Name] { + w.onFailure(lint.Failure{ + Confidence: 0.5, // confidence is low because of shadow variables + Node: id, + Category: "bad practice", + Failure: fmt.Sprintf("parameter '%s' seems to be modified", id), + }) + } +} diff --git a/vendor/github.com/mgechev/revive/rule/modifies-value-receiver.go b/vendor/github.com/mgechev/revive/rule/modifies-value-receiver.go new file mode 100644 index 000000000..4fe22ddf3 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/modifies-value-receiver.go @@ -0,0 +1,134 @@ +package rule + +import ( + "go/ast" + "strings" + + "github.com/mgechev/revive/lint" +) + +// ModifiesValRecRule lints assignments to value method-receivers. +type ModifiesValRecRule struct{} + +// Apply applies the rule to given file. +func (r *ModifiesValRecRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintModifiesValRecRule{file: file, onFailure: onFailure} + file.Pkg.TypeCheck() + ast.Walk(w, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *ModifiesValRecRule) Name() string { + return "modifies-value-receiver" +} + +type lintModifiesValRecRule struct { + file *lint.File + onFailure func(lint.Failure) +} + +func (w lintModifiesValRecRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.FuncDecl: + if n.Recv == nil { + return nil // skip, not a method + } + + receiver := n.Recv.List[0] + if _, ok := receiver.Type.(*ast.StarExpr); ok { + return nil // skip, method with pointer receiver + } + + if w.skipType(receiver.Type) { + return nil // skip, receiver is a map or array + } + + if len(receiver.Names) < 1 { + return nil // skip, anonymous receiver + } + + receiverName := receiver.Names[0].Name + if receiverName == "_" { + return nil // skip, anonymous receiver + } + + fselect := func(n ast.Node) bool { + // look for assignments with the receiver in the right hand + asgmt, ok := n.(*ast.AssignStmt) + if !ok { + return false + } + + for _, exp := range asgmt.Lhs { + switch e := exp.(type) { + case *ast.IndexExpr: // receiver...[] = ... + continue + case *ast.StarExpr: // *receiver = ... + continue + case *ast.SelectorExpr: // receiver.field = ... + name := w.getNameFromExpr(e.X) + if name == "" || name != receiverName { + continue + } + + if w.skipType(ast.Expr(e.Sel)) { + continue + } + + case *ast.Ident: // receiver := ... + if e.Name != receiverName { + continue + } + default: + continue + } + + return true + } + + return false + } + + assignmentsToReceiver := pick(n.Body, fselect, nil) + + for _, assignment := range assignmentsToReceiver { + w.onFailure(lint.Failure{ + Node: assignment, + Confidence: 1, + Failure: "suspicious assignment to a by-value method receiver", + }) + } + } + + return w +} + +func (w lintModifiesValRecRule) skipType(t ast.Expr) bool { + rt := w.file.Pkg.TypeOf(t) + if rt == nil { + return false + } + + rt = rt.Underlying() + rtName := rt.String() + + // skip when receiver is a map or array + return strings.HasPrefix(rtName, "[]") || strings.HasPrefix(rtName, "map[") +} + +func (lintModifiesValRecRule) getNameFromExpr(ie ast.Expr) string { + ident, ok := ie.(*ast.Ident) + if !ok { + return "" + } + + return ident.Name +} diff --git a/vendor/github.com/mgechev/revive/rule/package-comments.go b/vendor/github.com/mgechev/revive/rule/package-comments.go new file mode 100644 index 000000000..00fc5bb91 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/package-comments.go @@ -0,0 +1,121 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + "strings" + + "github.com/mgechev/revive/lint" +) + +// PackageCommentsRule lints the package comments. It complains if +// there is no package comment, or if it is not of the right form. +// This has a notable false positive in that a package comment +// could rightfully appear in a different file of the same package, +// but that's not easy to fix since this linter is file-oriented. +type PackageCommentsRule struct{} + +// Apply applies the rule to given file. +func (r *PackageCommentsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + if isTest(file) { + return failures + } + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + fileAst := file.AST + w := &lintPackageComments{fileAst, file, onFailure} + ast.Walk(w, fileAst) + return failures +} + +// Name returns the rule name. +func (r *PackageCommentsRule) Name() string { + return "package-comments" +} + +type lintPackageComments struct { + fileAst *ast.File + file *lint.File + onFailure func(lint.Failure) +} + +func (l *lintPackageComments) Visit(_ ast.Node) ast.Visitor { + if l.file.IsTest() { + return nil + } + + const ref = styleGuideBase + "#package-comments" + prefix := "Package " + l.fileAst.Name.Name + " " + + // Look for a detached package comment. + // First, scan for the last comment that occurs before the "package" keyword. + var lastCG *ast.CommentGroup + for _, cg := range l.fileAst.Comments { + if cg.Pos() > l.fileAst.Package { + // Gone past "package" keyword. + break + } + lastCG = cg + } + if lastCG != nil && strings.HasPrefix(lastCG.Text(), prefix) { + endPos := l.file.ToPosition(lastCG.End()) + pkgPos := l.file.ToPosition(l.fileAst.Package) + if endPos.Line+1 < pkgPos.Line { + // There isn't a great place to anchor this error; + // the start of the blank lines between the doc and the package statement + // is at least pointing at the location of the problem. + pos := token.Position{ + Filename: endPos.Filename, + // Offset not set; it is non-trivial, and doesn't appear to be needed. + Line: endPos.Line + 1, + Column: 1, + } + l.onFailure(lint.Failure{ + Category: "comments", + Position: lint.FailurePosition{ + Start: pos, + End: pos, + }, + Confidence: 0.9, + Failure: "package comment is detached; there should be no blank lines between it and the package statement", + }) + return nil + } + } + + if l.fileAst.Doc == nil { + l.onFailure(lint.Failure{ + Category: "comments", + Node: l.fileAst, + Confidence: 0.2, + Failure: "should have a package comment, unless it's in another file for this package", + }) + return nil + } + s := l.fileAst.Doc.Text() + if ts := strings.TrimLeft(s, " \t"); ts != s { + l.onFailure(lint.Failure{ + Category: "comments", + Node: l.fileAst.Doc, + Confidence: 1, + Failure: "package comment should not have leading space", + }) + s = ts + } + // Only non-main packages need to keep to this form. + if !l.file.Pkg.IsMain() && !strings.HasPrefix(s, prefix) { + l.onFailure(lint.Failure{ + Category: "comments", + Node: l.fileAst.Doc, + Confidence: 1, + Failure: fmt.Sprintf(`package comment should be of the form "%s..."`, prefix), + }) + } + return nil +} diff --git a/vendor/github.com/mgechev/revive/rule/range-val-address.go b/vendor/github.com/mgechev/revive/rule/range-val-address.go new file mode 100644 index 000000000..18554825a --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/range-val-address.go @@ -0,0 +1,113 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// RangeValAddress lints +type RangeValAddress struct{} + +// Apply applies the rule to given file. +func (r *RangeValAddress) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + walker := rangeValAddress{ + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *RangeValAddress) Name() string { + return "range-val-address" +} + +type rangeValAddress struct { + onFailure func(lint.Failure) +} + +func (w rangeValAddress) Visit(node ast.Node) ast.Visitor { + n, ok := node.(*ast.RangeStmt) + if !ok { + return w + } + + value, ok := n.Value.(*ast.Ident) + if !ok { + return w + } + + ast.Walk(rangeBodyVisitor{ + valueID: value.Obj, + onFailure: w.onFailure, + }, n.Body) + + return w +} + +type rangeBodyVisitor struct { + valueID *ast.Object + onFailure func(lint.Failure) +} + +func (bw rangeBodyVisitor) Visit(node ast.Node) ast.Visitor { + asgmt, ok := node.(*ast.AssignStmt) + if !ok { + return bw + } + + for _, exp := range asgmt.Lhs { + e, ok := exp.(*ast.IndexExpr) + if !ok { + continue + } + if bw.isAccessingRangeValueAddress(e.Index) { // e.g. a[&value]... + bw.onFailure(bw.newFailure(e.Index)) + } + } + + for _, exp := range asgmt.Rhs { + switch e := exp.(type) { + case *ast.UnaryExpr: // e.g. ...&value + if bw.isAccessingRangeValueAddress(e) { + bw.onFailure(bw.newFailure(e)) + } + case *ast.CallExpr: + if fun, ok := e.Fun.(*ast.Ident); ok && fun.Name == "append" { // e.g. ...append(arr, &value) + for _, v := range e.Args { + if bw.isAccessingRangeValueAddress(v) { + bw.onFailure(bw.newFailure(e)) + } + } + } + } + } + return bw +} + +func (bw rangeBodyVisitor) isAccessingRangeValueAddress(exp ast.Expr) bool { + u, ok := exp.(*ast.UnaryExpr) + if !ok { + return false + } + + v, ok := u.X.(*ast.Ident) + return ok && u.Op == token.AND && v.Obj == bw.valueID +} + +func (bw rangeBodyVisitor) newFailure(node ast.Node) lint.Failure { + return lint.Failure{ + Node: node, + Confidence: 1, + Failure: fmt.Sprintf("suspicious assignment of '%s'. range-loop variables always have the same address", bw.valueID.Name), + } +} diff --git a/vendor/github.com/mgechev/revive/rule/range-val-in-closure.go b/vendor/github.com/mgechev/revive/rule/range-val-in-closure.go new file mode 100644 index 000000000..857787be3 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/range-val-in-closure.go @@ -0,0 +1,111 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// RangeValInClosureRule lints given else constructs. +type RangeValInClosureRule struct{} + +// Apply applies the rule to given file. +func (r *RangeValInClosureRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + walker := rangeValInClosure{ + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + ast.Walk(walker, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *RangeValInClosureRule) Name() string { + return "range-val-in-closure" +} + +type rangeValInClosure struct { + onFailure func(lint.Failure) +} + +func (w rangeValInClosure) Visit(node ast.Node) ast.Visitor { + + // Find the variables updated by the loop statement. + var vars []*ast.Ident + addVar := func(expr ast.Expr) { + if id, ok := expr.(*ast.Ident); ok { + vars = append(vars, id) + } + } + var body *ast.BlockStmt + switch n := node.(type) { + case *ast.RangeStmt: + body = n.Body + addVar(n.Key) + addVar(n.Value) + case *ast.ForStmt: + body = n.Body + switch post := n.Post.(type) { + case *ast.AssignStmt: + // e.g. for p = head; p != nil; p = p.next + for _, lhs := range post.Lhs { + addVar(lhs) + } + case *ast.IncDecStmt: + // e.g. for i := 0; i < n; i++ + addVar(post.X) + } + } + if vars == nil { + return w + } + + // Inspect a go or defer statement + // if it's the last one in the loop body. + // (We give up if there are following statements, + // because it's hard to prove go isn't followed by wait, + // or defer by return.) + if len(body.List) == 0 { + return w + } + var last *ast.CallExpr + switch s := body.List[len(body.List)-1].(type) { + case *ast.GoStmt: + last = s.Call + case *ast.DeferStmt: + last = s.Call + default: + return w + } + lit, ok := last.Fun.(*ast.FuncLit) + if !ok { + return w + } + if lit.Type == nil { + // Not referring to a variable (e.g. struct field name) + return w + } + ast.Inspect(lit.Body, func(n ast.Node) bool { + id, ok := n.(*ast.Ident) + if !ok || id.Obj == nil { + return true + } + for _, v := range vars { + if v.Obj == id.Obj { + w.onFailure(lint.Failure{ + Confidence: 1, + Failure: fmt.Sprintf("loop variable %v captured by func literal", id.Name), + Node: n, + }) + } + } + return true + }) + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/range.go b/vendor/github.com/mgechev/revive/rule/range.go new file mode 100644 index 000000000..d18492c71 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/range.go @@ -0,0 +1,82 @@ +package rule + +import ( + "fmt" + "go/ast" + "strings" + + "github.com/mgechev/revive/lint" +) + +// RangeRule lints given else constructs. +type RangeRule struct{} + +// Apply applies the rule to given file. +func (r *RangeRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := &lintRanges{file, onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *RangeRule) Name() string { + return "range" +} + +type lintRanges struct { + file *lint.File + onFailure func(lint.Failure) +} + +func (w *lintRanges) Visit(node ast.Node) ast.Visitor { + rs, ok := node.(*ast.RangeStmt) + if !ok { + return w + } + if rs.Value == nil { + // for x = range m { ... } + return w // single var form + } + if !isIdent(rs.Value, "_") { + // for ?, y = range m { ... } + return w + } + + newRS := *rs // shallow copy + newRS.Value = nil + + w.onFailure(lint.Failure{ + Failure: fmt.Sprintf("should omit 2nd value from range; this loop is equivalent to `for %s %s range ...`", w.file.Render(rs.Key), rs.Tok), + Confidence: 1, + Node: rs.Value, + ReplacementLine: firstLineOf(w.file, &newRS, rs), + }) + + return w +} + +func firstLineOf(f *lint.File, node, match ast.Node) string { + line := f.Render(node) + if i := strings.Index(line, "\n"); i >= 0 { + line = line[:i] + } + return indentOf(f, match) + line +} + +func indentOf(f *lint.File, node ast.Node) string { + line := srcLine(f.Content(), f.ToPosition(node.Pos())) + for i, r := range line { + switch r { + case ' ', '\t': + default: + return line[:i] + } + } + return line // unusual or empty line +} diff --git a/vendor/github.com/mgechev/revive/rule/receiver-naming.go b/vendor/github.com/mgechev/revive/rule/receiver-naming.go new file mode 100644 index 000000000..589d5f0ef --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/receiver-naming.go @@ -0,0 +1,81 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// ReceiverNamingRule lints given else constructs. +type ReceiverNamingRule struct{} + +// Apply applies the rule to given file. +func (r *ReceiverNamingRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintReceiverName{ + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + typeReceiver: map[string]string{}, + } + + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *ReceiverNamingRule) Name() string { + return "receiver-naming" +} + +type lintReceiverName struct { + onFailure func(lint.Failure) + typeReceiver map[string]string +} + +func (w lintReceiverName) Visit(n ast.Node) ast.Visitor { + fn, ok := n.(*ast.FuncDecl) + if !ok || fn.Recv == nil || len(fn.Recv.List) == 0 { + return w + } + names := fn.Recv.List[0].Names + if len(names) < 1 { + return w + } + name := names[0].Name + const ref = styleGuideBase + "#receiver-names" + if name == "_" { + w.onFailure(lint.Failure{ + Node: n, + Confidence: 1, + Category: "naming", + Failure: "receiver name should not be an underscore, omit the name if it is unused", + }) + return w + } + if name == "this" || name == "self" { + w.onFailure(lint.Failure{ + Node: n, + Confidence: 1, + Category: "naming", + Failure: `receiver name should be a reflection of its identity; don't use generic names such as "this" or "self"`, + }) + return w + } + recv := receiverType(fn) + if prev, ok := w.typeReceiver[recv]; ok && prev != name { + w.onFailure(lint.Failure{ + Node: n, + Confidence: 1, + Category: "naming", + Failure: fmt.Sprintf("receiver name %s should be consistent with previous receiver name %s for %s", name, prev, recv), + }) + return w + } + w.typeReceiver[recv] = name + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/redefines-builtin-id.go b/vendor/github.com/mgechev/revive/rule/redefines-builtin-id.go new file mode 100644 index 000000000..947b8aac7 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/redefines-builtin-id.go @@ -0,0 +1,145 @@ +package rule + +import ( + "fmt" + "github.com/mgechev/revive/lint" + "go/ast" + "go/token" +) + +// RedefinesBuiltinIDRule warns when a builtin identifier is shadowed. +type RedefinesBuiltinIDRule struct{} + +// Apply applies the rule to given file. +func (r *RedefinesBuiltinIDRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + var builtInConstAndVars = map[string]bool{ + "true": true, + "false": true, + "iota": true, + "nil": true, + } + + var builtFunctions = map[string]bool{ + "append": true, + "cap": true, + "close": true, + "complex": true, + "copy": true, + "delete": true, + "imag": true, + "len": true, + "make": true, + "new": true, + "panic": true, + "print": true, + "println": true, + "real": true, + "recover": true, + } + + var builtInTypes = map[string]bool{ + "ComplexType": true, + "FloatType": true, + "IntegerType": true, + "Type": true, + "Type1": true, + "bool": true, + "byte": true, + "complex128": true, + "complex64": true, + "error": true, + "float32": true, + "float64": true, + "int": true, + "int16": true, + "int32": true, + "int64": true, + "int8": true, + "rune": true, + "string": true, + "uint": true, + "uint16": true, + "uint32": true, + "uint64": true, + "uint8": true, + "uintptr": true, + } + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + astFile := file.AST + w := &lintRedefinesBuiltinID{builtInConstAndVars, builtFunctions, builtInTypes, onFailure} + ast.Walk(w, astFile) + + return failures +} + +// Name returns the rule name. +func (r *RedefinesBuiltinIDRule) Name() string { + return "redefines-builtin-id" +} + +type lintRedefinesBuiltinID struct { + constsAndVars map[string]bool + funcs map[string]bool + types map[string]bool + onFailure func(lint.Failure) +} + +func (w *lintRedefinesBuiltinID) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.GenDecl: + if n.Tok != token.TYPE { + return nil // skip if not type declaration + } + typeSpec, ok := n.Specs[0].(*ast.TypeSpec) + if !ok { + return nil + } + id := typeSpec.Name.Name + if w.types[id] { + w.addFailure(n, fmt.Sprintf("redefinition of the built-in type %s", id)) + } + case *ast.FuncDecl: + if n.Recv != nil { + return w // skip methods + } + + id := n.Name.Name + if w.funcs[id] { + w.addFailure(n, fmt.Sprintf("redefinition of the built-in function %s", id)) + } + case *ast.AssignStmt: + for _, e := range n.Lhs { + id, ok := e.(*ast.Ident) + if !ok { + continue + } + + if w.constsAndVars[id.Name] { + var msg string + if n.Tok == token.DEFINE { + msg = fmt.Sprintf("assignment creates a shadow of built-in identifier %s", id.Name) + } else { + msg = fmt.Sprintf("assignment modifies built-in identifier %s", id.Name) + } + w.addFailure(n, msg) + } + } + } + + return w +} + +func (w lintRedefinesBuiltinID) addFailure(node ast.Node, msg string) { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: node, + Category: "logic", + Failure: msg, + }) +} diff --git a/vendor/github.com/mgechev/revive/rule/string-of-int.go b/vendor/github.com/mgechev/revive/rule/string-of-int.go new file mode 100644 index 000000000..38f453a4a --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/string-of-int.go @@ -0,0 +1,95 @@ +package rule + +import ( + "go/ast" + "go/types" + + "github.com/mgechev/revive/lint" +) + +// StringOfIntRule warns when logic expressions contains Boolean literals. +type StringOfIntRule struct{} + +// Apply applies the rule to given file. +func (r *StringOfIntRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + astFile := file.AST + file.Pkg.TypeCheck() + + w := &lintStringInt{file, onFailure} + ast.Walk(w, astFile) + + return failures +} + +// Name returns the rule name. +func (r *StringOfIntRule) Name() string { + return "string-of-int" +} + +type lintStringInt struct { + file *lint.File + onFailure func(lint.Failure) +} + +func (w *lintStringInt) Visit(node ast.Node) ast.Visitor { + ce, ok := node.(*ast.CallExpr) + if !ok { + return w + } + + if !w.isCallStringCast(ce.Fun) { + return w + } + + if !w.isIntExpression(ce.Args) { + return w + } + + w.onFailure(lint.Failure{ + Confidence: 1, + Node: ce, + Failure: "dubious convertion of an integer into a string, use strconv.Itoa", + }) + + return w +} + +func (w *lintStringInt) isCallStringCast(e ast.Expr) bool { + t := w.file.Pkg.TypeOf(e) + if t == nil { + return false + } + + tb, _ := t.Underlying().(*types.Basic) + + return tb != nil && tb.Kind() == types.String +} + +func (w *lintStringInt) isIntExpression(es []ast.Expr) bool { + if len(es) != 1 { + return false + } + + t := w.file.Pkg.TypeOf(es[0]) + if t == nil { + return false + } + + ut, _ := t.Underlying().(*types.Basic) + if ut == nil || ut.Info()&types.IsInteger == 0 { + return false + } + + switch ut.Kind() { + case types.Byte, types.Rune, types.UntypedRune: + return false + } + + return true +} diff --git a/vendor/github.com/mgechev/revive/rule/struct-tag.go b/vendor/github.com/mgechev/revive/rule/struct-tag.go new file mode 100644 index 000000000..57cf8103a --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/struct-tag.go @@ -0,0 +1,236 @@ +package rule + +import ( + "fmt" + "go/ast" + "strconv" + "strings" + + "github.com/fatih/structtag" + "github.com/mgechev/revive/lint" +) + +// StructTagRule lints struct tags. +type StructTagRule struct{} + +// Apply applies the rule to given file. +func (r *StructTagRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintStructTagRule{onFailure: onFailure} + + ast.Walk(w, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *StructTagRule) Name() string { + return "struct-tag" +} + +type lintStructTagRule struct { + onFailure func(lint.Failure) + usedTagNbr map[string]bool // list of used tag numbers +} + +func (w lintStructTagRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.StructType: + if n.Fields == nil || n.Fields.NumFields() < 1 { + return nil // skip empty structs + } + w.usedTagNbr = map[string]bool{} // init + for _, f := range n.Fields.List { + if f.Tag != nil { + w.checkTaggedField(f) + } + } + } + + return w + +} + +// checkTaggedField checks the tag of the given field. +// precondition: the field has a tag +func (w lintStructTagRule) checkTaggedField(f *ast.Field) { + if len(f.Names) > 0 && !f.Names[0].IsExported() { + w.addFailure(f, "tag on not-exported field "+f.Names[0].Name) + } + + tags, err := structtag.Parse(strings.Trim(f.Tag.Value, "`")) + if err != nil || tags == nil { + w.addFailure(f.Tag, "malformed tag") + return + } + + for _, tag := range tags.Tags() { + switch key := tag.Key; key { + case "asn1": + msg, ok := w.checkASN1Tag(f.Type, tag) + if !ok { + w.addFailure(f.Tag, msg) + } + case "bson": + msg, ok := w.checkBSONTag(tag.Options) + if !ok { + w.addFailure(f.Tag, msg) + } + case "default": + if !w.typeValueMatch(f.Type, tag.Name) { + w.addFailure(f.Tag, "field's type and default value's type mismatch") + } + case "json": + msg, ok := w.checkJSONTag(tag.Name, tag.Options) + if !ok { + w.addFailure(f.Tag, msg) + } + case "protobuf": + // Not implemented yet + case "required": + if tag.Name != "true" && tag.Name != "false" { + w.addFailure(f.Tag, "required should be 'true' or 'false'") + } + case "xml": + msg, ok := w.checkXMLTag(tag.Options) + if !ok { + w.addFailure(f.Tag, msg) + } + case "yaml": + msg, ok := w.checkYAMLTag(tag.Options) + if !ok { + w.addFailure(f.Tag, msg) + } + default: + // unknown key + } + } +} + +func (w lintStructTagRule) checkASN1Tag(t ast.Expr, tag *structtag.Tag) (string, bool) { + checkList := append(tag.Options, tag.Name) + for _, opt := range checkList { + switch opt { + case "application", "explicit", "generalized", "ia5", "omitempty", "optional", "set", "utf8": + + default: + if strings.HasPrefix(opt, "tag:") { + parts := strings.Split(opt, ":") + tagNumber := parts[1] + if w.usedTagNbr[tagNumber] { + return fmt.Sprintf("duplicated tag number %s", tagNumber), false + } + w.usedTagNbr[tagNumber] = true + + continue + } + + if strings.HasPrefix(opt, "default:") { + parts := strings.Split(opt, ":") + if len(parts) < 2 { + return "malformed default for ASN1 tag", false + } + if !w.typeValueMatch(t, parts[1]) { + return "field's type and default value's type mismatch", false + } + + continue + } + + return fmt.Sprintf("unknown option '%s' in ASN1 tag", opt), false + } + } + + return "", true +} + +func (w lintStructTagRule) checkBSONTag(options []string) (string, bool) { + for _, opt := range options { + switch opt { + case "inline", "minsize", "omitempty": + default: + return fmt.Sprintf("unknown option '%s' in BSON tag", opt), false + } + } + + return "", true +} + +func (w lintStructTagRule) checkJSONTag(name string, options []string) (string, bool) { + for _, opt := range options { + switch opt { + case "omitempty", "string": + case "": + // special case for JSON key "-" + if name != "-" { + return "option can not be empty in JSON tag", false + } + default: + return fmt.Sprintf("unknown option '%s' in JSON tag", opt), false + } + } + + return "", true +} + +func (w lintStructTagRule) checkXMLTag(options []string) (string, bool) { + for _, opt := range options { + switch opt { + case "any", "attr", "cdata", "chardata", "comment", "innerxml", "omitempty", "typeattr": + default: + return fmt.Sprintf("unknown option '%s' in XML tag", opt), false + } + } + + return "", true +} + +func (w lintStructTagRule) checkYAMLTag(options []string) (string, bool) { + for _, opt := range options { + switch opt { + case "flow", "inline", "omitempty": + default: + return fmt.Sprintf("unknown option '%s' in YAML tag", opt), false + } + } + + return "", true +} + +func (w lintStructTagRule) typeValueMatch(t ast.Expr, val string) bool { + tID, ok := t.(*ast.Ident) + if !ok { + return true + } + + typeMatches := true + switch tID.Name { + case "bool": + typeMatches = val == "true" || val == "false" + case "float64": + _, err := strconv.ParseFloat(val, 64) + typeMatches = err == nil + case "int": + _, err := strconv.ParseInt(val, 10, 64) + typeMatches = err == nil + case "string": + case "nil": + default: + // unchecked type + } + + return typeMatches +} + +func (w lintStructTagRule) addFailure(n ast.Node, msg string) { + w.onFailure(lint.Failure{ + Node: n, + Failure: msg, + Confidence: 1, + }) +} diff --git a/vendor/github.com/mgechev/revive/rule/superfluous-else.go b/vendor/github.com/mgechev/revive/rule/superfluous-else.go new file mode 100644 index 000000000..c29be9e0d --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/superfluous-else.go @@ -0,0 +1,114 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// SuperfluousElseRule lints given else constructs. +type SuperfluousElseRule struct{} + +// Apply applies the rule to given file. +func (r *SuperfluousElseRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + var branchingFunctions = map[string]map[string]bool{ + "os": map[string]bool{"Exit": true}, + "log": map[string]bool{ + "Fatal": true, + "Fatalf": true, + "Fatalln": true, + "Panic": true, + "Panicf": true, + "Panicln": true, + }, + } + + w := lintSuperfluousElse{make(map[*ast.IfStmt]bool), onFailure, branchingFunctions} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *SuperfluousElseRule) Name() string { + return "superfluous-else" +} + +type lintSuperfluousElse struct { + ignore map[*ast.IfStmt]bool + onFailure func(lint.Failure) + branchingFunctions map[string]map[string]bool +} + +func (w lintSuperfluousElse) Visit(node ast.Node) ast.Visitor { + ifStmt, ok := node.(*ast.IfStmt) + if !ok || ifStmt.Else == nil { + return w + } + if w.ignore[ifStmt] { + if elseif, ok := ifStmt.Else.(*ast.IfStmt); ok { + w.ignore[elseif] = true + } + return w + } + if elseif, ok := ifStmt.Else.(*ast.IfStmt); ok { + w.ignore[elseif] = true + return w + } + if _, ok := ifStmt.Else.(*ast.BlockStmt); !ok { + // only care about elses without conditions + return w + } + if len(ifStmt.Body.List) == 0 { + return w + } + shortDecl := false // does the if statement have a ":=" initialization statement? + if ifStmt.Init != nil { + if as, ok := ifStmt.Init.(*ast.AssignStmt); ok && as.Tok == token.DEFINE { + shortDecl = true + } + } + extra := "" + if shortDecl { + extra = " (move short variable declaration to its own line if necessary)" + } + + lastStmt := ifStmt.Body.List[len(ifStmt.Body.List)-1] + switch stmt := lastStmt.(type) { + case *ast.BranchStmt: + token := stmt.Tok.String() + if token != "fallthrough" { + w.onFailure(newFailure(ifStmt.Else, "if block ends with a "+token+" statement, so drop this else and outdent its block"+extra)) + } + case *ast.ExprStmt: + if ce, ok := stmt.X.(*ast.CallExpr); ok { // it's a function call + if fc, ok := ce.Fun.(*ast.SelectorExpr); ok { + if id, ok := fc.X.(*ast.Ident); ok { + fn := fc.Sel.Name + pkg := id.Name + if w.branchingFunctions[pkg][fn] { // it's a call to a branching function + w.onFailure( + newFailure(ifStmt.Else, fmt.Sprintf("if block ends with call to %s.%s function, so drop this else and outdent its block%s", pkg, fn, extra))) + } + } + } + } + } + + return w +} + +func newFailure(node ast.Node, msg string) lint.Failure { + return lint.Failure{ + Confidence: 1, + Node: node, + Category: "indent", + Failure: msg, + } +} diff --git a/vendor/github.com/mgechev/revive/rule/time-naming.go b/vendor/github.com/mgechev/revive/rule/time-naming.go new file mode 100644 index 000000000..a93f4b5ae --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/time-naming.go @@ -0,0 +1,93 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/types" + "strings" + + "github.com/mgechev/revive/lint" +) + +// TimeNamingRule lints given else constructs. +type TimeNamingRule struct{} + +// Apply applies the rule to given file. +func (r *TimeNamingRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := &lintTimeNames{file, onFailure} + + file.Pkg.TypeCheck() + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *TimeNamingRule) Name() string { + return "time-naming" +} + +type lintTimeNames struct { + file *lint.File + onFailure func(lint.Failure) +} + +func (w *lintTimeNames) Visit(node ast.Node) ast.Visitor { + v, ok := node.(*ast.ValueSpec) + if !ok { + return w + } + for _, name := range v.Names { + origTyp := w.file.Pkg.TypeOf(name) + // Look for time.Duration or *time.Duration; + // the latter is common when using flag.Duration. + typ := origTyp + if pt, ok := typ.(*types.Pointer); ok { + typ = pt.Elem() + } + if !isNamedType(typ, "time", "Duration") { + continue + } + suffix := "" + for _, suf := range timeSuffixes { + if strings.HasSuffix(name.Name, suf) { + suffix = suf + break + } + } + if suffix == "" { + continue + } + w.onFailure(lint.Failure{ + Category: "time", + Confidence: 0.9, + Node: v, + Failure: fmt.Sprintf("var %s is of type %v; don't use unit-specific suffix %q", name.Name, origTyp, suffix), + }) + } + return w +} + +// timeSuffixes is a list of name suffixes that imply a time unit. +// This is not an exhaustive list. +var timeSuffixes = []string{ + "Sec", "Secs", "Seconds", + "Msec", "Msecs", + "Milli", "Millis", "Milliseconds", + "Usec", "Usecs", "Microseconds", + "MS", "Ms", +} + +func isNamedType(typ types.Type, importPath, name string) bool { + n, ok := typ.(*types.Named) + if !ok { + return false + } + tn := n.Obj() + return tn != nil && tn.Pkg() != nil && tn.Pkg().Path() == importPath && tn.Name() == name +} diff --git a/vendor/github.com/mgechev/revive/rule/unexported-return.go b/vendor/github.com/mgechev/revive/rule/unexported-return.go new file mode 100644 index 000000000..c9c8a41d3 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/unexported-return.go @@ -0,0 +1,106 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/types" + + "github.com/mgechev/revive/lint" +) + +// UnexportedReturnRule lints given else constructs. +type UnexportedReturnRule struct{} + +// Apply applies the rule to given file. +func (r *UnexportedReturnRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := lintUnexportedReturn{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + file.Pkg.TypeCheck() + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *UnexportedReturnRule) Name() string { + return "unexported-return" +} + +type lintUnexportedReturn struct { + file *lint.File + fileAst *ast.File + onFailure func(lint.Failure) +} + +func (w lintUnexportedReturn) Visit(n ast.Node) ast.Visitor { + fn, ok := n.(*ast.FuncDecl) + if !ok { + return w + } + if fn.Type.Results == nil { + return nil + } + if !fn.Name.IsExported() { + return nil + } + thing := "func" + if fn.Recv != nil && len(fn.Recv.List) > 0 { + thing = "method" + if !ast.IsExported(receiverType(fn)) { + // Don't report exported methods of unexported types, + // such as private implementations of sort.Interface. + return nil + } + } + for _, ret := range fn.Type.Results.List { + typ := w.file.Pkg.TypeOf(ret.Type) + if exportedType(typ) { + continue + } + w.onFailure(lint.Failure{ + Category: "unexported-type-in-api", + Node: ret.Type, + Confidence: 0.8, + Failure: fmt.Sprintf("exported %s %s returns unexported type %s, which can be annoying to use", + thing, fn.Name.Name, typ), + }) + break // only flag one + } + return nil +} + +// exportedType reports whether typ is an exported type. +// It is imprecise, and will err on the side of returning true, +// such as for composite types. +func exportedType(typ types.Type) bool { + switch T := typ.(type) { + case *types.Named: + obj := T.Obj() + switch { + // Builtin types have no package. + case obj.Pkg() == nil: + case obj.Exported(): + default: + _, ok := T.Underlying().(*types.Interface) + return ok + } + return true + case *types.Map: + return exportedType(T.Key()) && exportedType(T.Elem()) + case interface { + Elem() types.Type + }: // array, slice, pointer, chan + return exportedType(T.Elem()) + } + // Be conservative about other types, such as struct, interface, etc. + return true +} diff --git a/vendor/github.com/mgechev/revive/rule/unhandled-error.go b/vendor/github.com/mgechev/revive/rule/unhandled-error.go new file mode 100644 index 000000000..0e2f62875 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/unhandled-error.go @@ -0,0 +1,120 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/types" + + "github.com/mgechev/revive/lint" +) + +// UnhandledErrorRule lints given else constructs. +type UnhandledErrorRule struct{} + +type ignoreListType map[string]struct{} + +// Apply applies the rule to given file. +func (r *UnhandledErrorRule) Apply(file *lint.File, args lint.Arguments) []lint.Failure { + var failures []lint.Failure + + ignoreList := make(ignoreListType, len(args)) + + for _, arg := range args { + argStr, ok := arg.(string) + if !ok { + panic(fmt.Sprintf("Invalid argument to the unhandled-error rule. Expecting a string, got %T", arg)) + } + + ignoreList[argStr] = struct{}{} + } + + walker := &lintUnhandledErrors{ + ignoreList: ignoreList, + pkg: file.Pkg, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + file.Pkg.TypeCheck() + ast.Walk(walker, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *UnhandledErrorRule) Name() string { + return "unhandled-error" +} + +type lintUnhandledErrors struct { + ignoreList ignoreListType + pkg *lint.Package + onFailure func(lint.Failure) +} + +// Visit looks for statements that are function calls. +// If the called function returns a value of type error a failure will be created. +func (w *lintUnhandledErrors) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.ExprStmt: + fCall, ok := n.X.(*ast.CallExpr) + if !ok { + return nil // not a function call + } + + funcType := w.pkg.TypeOf(fCall) + if funcType == nil { + return nil // skip, type info not available + } + + switch t := funcType.(type) { + case *types.Named: + if !w.isTypeError(t) { + return nil // func call does not return an error + } + + w.addFailure(fCall) + default: + retTypes, ok := funcType.Underlying().(*types.Tuple) + if !ok { + return nil // skip, unable to retrieve return type of the called function + } + + if w.returnsAnError(retTypes) { + w.addFailure(fCall) + } + } + } + return w +} + +func (w *lintUnhandledErrors) addFailure(n *ast.CallExpr) { + funcName := gofmt(n.Fun) + if _, mustIgnore := w.ignoreList[funcName]; mustIgnore { + return + } + + w.onFailure(lint.Failure{ + Category: "bad practice", + Confidence: 1, + Node: n, + Failure: fmt.Sprintf("Unhandled error in call to function %v", funcName), + }) +} + +func (*lintUnhandledErrors) isTypeError(t *types.Named) bool { + const errorTypeName = "_.error" + + return t.Obj().Id() == errorTypeName +} + +func (w *lintUnhandledErrors) returnsAnError(tt *types.Tuple) bool { + for i := 0; i < tt.Len(); i++ { + nt, ok := tt.At(i).Type().(*types.Named) + if ok && w.isTypeError(nt) { + return true + } + } + return false +} diff --git a/vendor/github.com/mgechev/revive/rule/unnecessary-stmt.go b/vendor/github.com/mgechev/revive/rule/unnecessary-stmt.go new file mode 100644 index 000000000..732d8a8bb --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/unnecessary-stmt.go @@ -0,0 +1,107 @@ +package rule + +import ( + "go/ast" + "go/token" + + "github.com/mgechev/revive/lint" +) + +// UnnecessaryStmtRule warns on unnecessary statements. +type UnnecessaryStmtRule struct{} + +// Apply applies the rule to given file. +func (r *UnnecessaryStmtRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintUnnecessaryStmtRule{onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *UnnecessaryStmtRule) Name() string { + return "unnecessary-stmt" +} + +type lintUnnecessaryStmtRule struct { + onFailure func(lint.Failure) +} + +func (w lintUnnecessaryStmtRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.FuncDecl: + if n.Body == nil || n.Type.Results != nil { + return w + } + stmts := n.Body.List + if len(stmts) == 0 { + return w + } + + lastStmt := stmts[len(stmts)-1] + rs, ok := lastStmt.(*ast.ReturnStmt) + if !ok { + return w + } + + if len(rs.Results) == 0 { + w.newFailure(lastStmt, "omit unnecessary return statement") + } + + case *ast.SwitchStmt: + w.checkSwitchBody(n.Body) + case *ast.TypeSwitchStmt: + w.checkSwitchBody(n.Body) + case *ast.CaseClause: + if n.Body == nil { + return w + } + stmts := n.Body + if len(stmts) == 0 { + return w + } + + lastStmt := stmts[len(stmts)-1] + rs, ok := lastStmt.(*ast.BranchStmt) + if !ok { + return w + } + + if rs.Tok == token.BREAK && rs.Label == nil { + w.newFailure(lastStmt, "omit unnecessary break at the end of case clause") + } + } + + return w +} + +func (w lintUnnecessaryStmtRule) checkSwitchBody(b *ast.BlockStmt) { + cases := b.List + if len(cases) != 1 { + return + } + + cc, ok := cases[0].(*ast.CaseClause) + if !ok { + return + } + + if len(cc.List) > 1 { // skip cases with multiple expressions + return + } + + w.newFailure(b, "switch with only one case can be replaced by an if-then") +} + +func (w lintUnnecessaryStmtRule) newFailure(node ast.Node, msg string) { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: node, + Category: "style", + Failure: msg, + }) +} diff --git a/vendor/github.com/mgechev/revive/rule/unreachable-code.go b/vendor/github.com/mgechev/revive/rule/unreachable-code.go new file mode 100644 index 000000000..c81e9e733 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/unreachable-code.go @@ -0,0 +1,114 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// UnreachableCodeRule lints unreachable code. +type UnreachableCodeRule struct{} + +// Apply applies the rule to given file. +func (r *UnreachableCodeRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + var branchingFunctions = map[string]map[string]bool{ + "os": map[string]bool{"Exit": true}, + "log": map[string]bool{ + "Fatal": true, + "Fatalf": true, + "Fatalln": true, + "Panic": true, + "Panicf": true, + "Panicln": true, + }, + } + + w := lintUnreachableCode{onFailure, branchingFunctions} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *UnreachableCodeRule) Name() string { + return "unreachable-code" +} + +type lintUnreachableCode struct { + onFailure func(lint.Failure) + branchingFunctions map[string]map[string]bool +} + +func (w lintUnreachableCode) Visit(node ast.Node) ast.Visitor { + blk, ok := node.(*ast.BlockStmt) + if !ok { + return w + } + + if len(blk.List) < 2 { + return w + } +loop: + for i, stmt := range blk.List[:len(blk.List)-1] { + // println("iterating ", len(blk.List)) + next := blk.List[i+1] + if _, ok := next.(*ast.LabeledStmt); ok { + continue // skip if next statement is labeled + } + + switch s := stmt.(type) { + case *ast.ReturnStmt: + w.onFailure(newUnreachableCodeFailure(s)) + break loop + case *ast.BranchStmt: + token := s.Tok.String() + if token != "fallthrough" { + w.onFailure(newUnreachableCodeFailure(s)) + break loop + } + case *ast.ExprStmt: + ce, ok := s.X.(*ast.CallExpr) + if !ok { + continue + } + // it's a function call + fc, ok := ce.Fun.(*ast.SelectorExpr) + if !ok { + continue + } + + id, ok := fc.X.(*ast.Ident) + + if !ok { + continue + } + fn := fc.Sel.Name + pkg := id.Name + if !w.branchingFunctions[pkg][fn] { // it isn't a call to a branching function + continue + } + + if _, ok := next.(*ast.ReturnStmt); ok { // return statement needed to satisfy function signature + continue + } + + w.onFailure(newUnreachableCodeFailure(s)) + break loop + } + } + + return w +} + +func newUnreachableCodeFailure(node ast.Node) lint.Failure { + return lint.Failure{ + Confidence: 1, + Node: node, + Category: "logic", + Failure: "unreachable code after this statement", + } +} diff --git a/vendor/github.com/mgechev/revive/rule/unused-param.go b/vendor/github.com/mgechev/revive/rule/unused-param.go new file mode 100644 index 000000000..60df908d3 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/unused-param.go @@ -0,0 +1,102 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// UnusedParamRule lints unused params in functions. +type UnusedParamRule struct{} + +// Apply applies the rule to given file. +func (r *UnusedParamRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintUnusedParamRule{onFailure: onFailure} + + ast.Walk(w, file.AST) + + return failures +} + +// Name returns the rule name. +func (r *UnusedParamRule) Name() string { + return "unused-parameter" +} + +type lintUnusedParamRule struct { + onFailure func(lint.Failure) +} + +func (w lintUnusedParamRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.FuncDecl: + params := retrieveNamedParams(n.Type.Params) + if len(params) < 1 { + return nil // skip, func without parameters + } + + if n.Body == nil { + return nil // skip, is a function prototype + } + + // inspect the func body looking for references to parameters + fselect := func(n ast.Node) bool { + ident, isAnID := n.(*ast.Ident) + + if !isAnID { + return false + } + + _, isAParam := params[ident.Obj] + if isAParam { + params[ident.Obj] = false // mark as used + } + + return false + } + _ = pick(n.Body, fselect, nil) + + for _, p := range n.Type.Params.List { + for _, n := range p.Names { + if params[n.Obj] { + w.onFailure(lint.Failure{ + Confidence: 1, + Node: n, + Category: "bad practice", + Failure: fmt.Sprintf("parameter '%s' seems to be unused, consider removing or renaming it as _", n.Name), + }) + } + } + } + + return nil // full method body already inspected + } + + return w +} + +func retrieveNamedParams(params *ast.FieldList) map[*ast.Object]bool { + result := map[*ast.Object]bool{} + if params.List == nil { + return result + } + + for _, p := range params.List { + for _, n := range p.Names { + if n.Name == "_" { + continue + } + + result[n.Obj] = true + } + } + + return result +} diff --git a/vendor/github.com/mgechev/revive/rule/unused-receiver.go b/vendor/github.com/mgechev/revive/rule/unused-receiver.go new file mode 100644 index 000000000..43eaf83a4 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/unused-receiver.go @@ -0,0 +1,77 @@ +package rule + +import ( + "fmt" + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// UnusedReceiverRule lints unused params in functions. +type UnusedReceiverRule struct{} + +// Apply applies the rule to given file. +func (_ *UnusedReceiverRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintUnusedReceiverRule{onFailure: onFailure} + + ast.Walk(w, file.AST) + + return failures +} + +// Name returns the rule name. +func (_ *UnusedReceiverRule) Name() string { + return "unused-receiver" +} + +type lintUnusedReceiverRule struct { + onFailure func(lint.Failure) +} + +func (w lintUnusedReceiverRule) Visit(node ast.Node) ast.Visitor { + switch n := node.(type) { + case *ast.FuncDecl: + if n.Recv == nil { + return nil // skip this func decl, not a method + } + + rec := n.Recv.List[0] // safe to access only the first (unique) element of the list + if len(rec.Names) < 1 { + return nil // the receiver is anonymous: func (aType) Foo(...) ... + } + + recID := rec.Names[0] + if recID.Name == "_" { + return nil // the receiver is already named _ + } + + // inspect the func body looking for references to the receiver id + fselect := func(n ast.Node) bool { + ident, isAnID := n.(*ast.Ident) + + return isAnID && ident.Obj == recID.Obj + } + refs2recID := pick(n.Body, fselect, nil) + + if len(refs2recID) > 0 { + return nil // the receiver is referenced in the func body + } + + w.onFailure(lint.Failure{ + Confidence: 1, + Node: recID, + Category: "bad practice", + Failure: fmt.Sprintf("method receiver '%s' is not referenced in method's body, consider removing or renaming it as _", recID.Name), + }) + + return nil // full method body already inspected + } + + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/utils.go b/vendor/github.com/mgechev/revive/rule/utils.go new file mode 100644 index 000000000..6ba542b71 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/utils.go @@ -0,0 +1,191 @@ +package rule + +import ( + "bytes" + "fmt" + "go/ast" + "go/printer" + "go/token" + "go/types" + "regexp" + "strings" + + "github.com/mgechev/revive/lint" +) + +const styleGuideBase = "https://golang.org/wiki/CodeReviewComments" + +// isBlank returns whether id is the blank identifier "_". +// If id == nil, the answer is false. +func isBlank(id *ast.Ident) bool { return id != nil && id.Name == "_" } + +func isTest(f *lint.File) bool { + return strings.HasSuffix(f.Name, "_test.go") +} + +var commonMethods = map[string]bool{ + "Error": true, + "Read": true, + "ServeHTTP": true, + "String": true, + "Write": true, +} + +func receiverType(fn *ast.FuncDecl) string { + switch e := fn.Recv.List[0].Type.(type) { + case *ast.Ident: + return e.Name + case *ast.StarExpr: + if id, ok := e.X.(*ast.Ident); ok { + return id.Name + } + } + // The parser accepts much more than just the legal forms. + return "invalid-type" +} + +var knownNameExceptions = map[string]bool{ + "LastInsertId": true, // must match database/sql + "kWh": true, +} + +func isCgoExported(f *ast.FuncDecl) bool { + if f.Recv != nil || f.Doc == nil { + return false + } + + cgoExport := regexp.MustCompile(fmt.Sprintf("(?m)^//export %s$", regexp.QuoteMeta(f.Name.Name))) + for _, c := range f.Doc.List { + if cgoExport.MatchString(c.Text) { + return true + } + } + return false +} + +var allCapsRE = regexp.MustCompile(`^[A-Z0-9_]+$`) + +func isIdent(expr ast.Expr, ident string) bool { + id, ok := expr.(*ast.Ident) + return ok && id.Name == ident +} + +var zeroLiteral = map[string]bool{ + "false": true, // bool + // runes + `'\x00'`: true, + `'\000'`: true, + // strings + `""`: true, + "``": true, + // numerics + "0": true, + "0.": true, + "0.0": true, + "0i": true, +} + +func validType(T types.Type) bool { + return T != nil && + T != types.Typ[types.Invalid] && + !strings.Contains(T.String(), "invalid type") // good but not foolproof +} + +func isPkgDot(expr ast.Expr, pkg, name string) bool { + sel, ok := expr.(*ast.SelectorExpr) + return ok && isIdent(sel.X, pkg) && isIdent(sel.Sel, name) +} + +func srcLine(src []byte, p token.Position) string { + // Run to end of line in both directions if not at line start/end. + lo, hi := p.Offset, p.Offset+1 + for lo > 0 && src[lo-1] != '\n' { + lo-- + } + for hi < len(src) && src[hi-1] != '\n' { + hi++ + } + return string(src[lo:hi]) +} + +// pick yields a list of nodes by picking them from a sub-ast with root node n. +// Nodes are selected by applying the fselect function +// f function is applied to each selected node before inseting it in the final result. +// If f==nil then it defaults to the identity function (ie it returns the node itself) +func pick(n ast.Node, fselect func(n ast.Node) bool, f func(n ast.Node) []ast.Node) []ast.Node { + var result []ast.Node + + if n == nil { + return result + } + + if f == nil { + f = func(n ast.Node) []ast.Node { return []ast.Node{n} } + } + + onSelect := func(n ast.Node) { + result = append(result, f(n)...) + } + p := picker{fselect: fselect, onSelect: onSelect} + ast.Walk(p, n) + return result +} + +func pickFromExpList(l []ast.Expr, fselect func(n ast.Node) bool, f func(n ast.Node) []ast.Node) []ast.Node { + result := make([]ast.Node, 0) + for _, e := range l { + result = append(result, pick(e, fselect, f)...) + } + return result +} + +type picker struct { + fselect func(n ast.Node) bool + onSelect func(n ast.Node) +} + +func (p picker) Visit(node ast.Node) ast.Visitor { + if p.fselect == nil { + return nil + } + + if p.fselect(node) { + p.onSelect(node) + } + + return p +} + +// isBoolOp returns true if the given token corresponds to +// a bool operator +func isBoolOp(t token.Token) bool { + switch t { + case token.LAND, token.LOR, token.EQL, token.NEQ: + return true + } + + return false +} + +const ( + trueName = "true" + falseName = "false" +) + +func isExprABooleanLit(n ast.Node) (lexeme string, ok bool) { + oper, ok := n.(*ast.Ident) + + if !ok { + return "", false + } + + return oper.Name, (oper.Name == trueName || oper.Name == falseName) +} + +// gofmt returns a string representation of the expression. +func gofmt(x ast.Expr) string { + buf := bytes.Buffer{} + fs := token.NewFileSet() + printer.Fprint(&buf, fs, x) + return buf.String() +} diff --git a/vendor/github.com/mgechev/revive/rule/var-declarations.go b/vendor/github.com/mgechev/revive/rule/var-declarations.go new file mode 100644 index 000000000..441132115 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/var-declarations.go @@ -0,0 +1,120 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + "go/types" + + "github.com/mgechev/revive/lint" +) + +// VarDeclarationsRule lints given else constructs. +type VarDeclarationsRule struct{} + +// Apply applies the rule to given file. +func (r *VarDeclarationsRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + fileAst := file.AST + walker := &lintVarDeclarations{ + file: file, + fileAst: fileAst, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + file.Pkg.TypeCheck() + ast.Walk(walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *VarDeclarationsRule) Name() string { + return "var-declaration" +} + +type lintVarDeclarations struct { + fileAst *ast.File + file *lint.File + lastGen *ast.GenDecl + onFailure func(lint.Failure) +} + +func (w *lintVarDeclarations) Visit(node ast.Node) ast.Visitor { + switch v := node.(type) { + case *ast.GenDecl: + if v.Tok != token.CONST && v.Tok != token.VAR { + return nil + } + w.lastGen = v + return w + case *ast.ValueSpec: + if w.lastGen.Tok == token.CONST { + return nil + } + if len(v.Names) > 1 || v.Type == nil || len(v.Values) == 0 { + return nil + } + rhs := v.Values[0] + // An underscore var appears in a common idiom for compile-time interface satisfaction, + // as in "var _ Interface = (*Concrete)(nil)". + if isIdent(v.Names[0], "_") { + return nil + } + // If the RHS is a zero value, suggest dropping it. + zero := false + if lit, ok := rhs.(*ast.BasicLit); ok { + zero = zeroLiteral[lit.Value] + } else if isIdent(rhs, "nil") { + zero = true + } + if zero { + w.onFailure(lint.Failure{ + Confidence: 0.9, + Node: rhs, + Category: "zero-value", + Failure: fmt.Sprintf("should drop = %s from declaration of var %s; it is the zero value", w.file.Render(rhs), v.Names[0]), + }) + return nil + } + lhsTyp := w.file.Pkg.TypeOf(v.Type) + rhsTyp := w.file.Pkg.TypeOf(rhs) + + if !validType(lhsTyp) || !validType(rhsTyp) { + // Type checking failed (often due to missing imports). + return nil + } + + if !types.Identical(lhsTyp, rhsTyp) { + // Assignment to a different type is not redundant. + return nil + } + + // The next three conditions are for suppressing the warning in situations + // where we were unable to typecheck. + + // If the LHS type is an interface, don't warn, since it is probably a + // concrete type on the RHS. Note that our feeble lexical check here + // will only pick up interface{} and other literal interface types; + // that covers most of the cases we care to exclude right now. + if _, ok := v.Type.(*ast.InterfaceType); ok { + return nil + } + // If the RHS is an untyped const, only warn if the LHS type is its default type. + if defType, ok := w.file.IsUntypedConst(rhs); ok && !isIdent(v.Type, defType) { + return nil + } + + w.onFailure(lint.Failure{ + Category: "type-inference", + Confidence: 0.8, + Node: v.Type, + Failure: fmt.Sprintf("should omit type %s from declaration of var %s; it will be inferred from the right-hand side", w.file.Render(v.Type), v.Names[0]), + }) + return nil + } + return w +} diff --git a/vendor/github.com/mgechev/revive/rule/var-naming.go b/vendor/github.com/mgechev/revive/rule/var-naming.go new file mode 100644 index 000000000..768f65b96 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/var-naming.go @@ -0,0 +1,230 @@ +package rule + +import ( + "fmt" + "go/ast" + "go/token" + "strings" + + "github.com/mgechev/revive/lint" +) + +// VarNamingRule lints given else constructs. +type VarNamingRule struct{} + +// Apply applies the rule to given file. +func (r *VarNamingRule) Apply(file *lint.File, arguments lint.Arguments) []lint.Failure { + var failures []lint.Failure + + var whitelist []string + var blacklist []string + + if len(arguments) >= 1 { + whitelist = getList(arguments[0], "whitelist") + } + + if len(arguments) >= 2 { + blacklist = getList(arguments[1], "blacklist") + } + + fileAst := file.AST + walker := lintNames{ + file: file, + fileAst: fileAst, + whitelist: whitelist, + blacklist: blacklist, + onFailure: func(failure lint.Failure) { + failures = append(failures, failure) + }, + } + + // Package names need slightly different handling than other names. + if strings.Contains(walker.fileAst.Name.Name, "_") && !strings.HasSuffix(walker.fileAst.Name.Name, "_test") { + walker.onFailure(lint.Failure{ + Failure: "don't use an underscore in package name", + Confidence: 1, + Node: walker.fileAst, + Category: "naming", + }) + } + + ast.Walk(&walker, fileAst) + + return failures +} + +// Name returns the rule name. +func (r *VarNamingRule) Name() string { + return "var-naming" +} + +func checkList(fl *ast.FieldList, thing string, w *lintNames) { + if fl == nil { + return + } + for _, f := range fl.List { + for _, id := range f.Names { + check(id, thing, w) + } + } +} + +func check(id *ast.Ident, thing string, w *lintNames) { + if id.Name == "_" { + return + } + if knownNameExceptions[id.Name] { + return + } + + // Handle two common styles from other languages that don't belong in Go. + if len(id.Name) >= 5 && allCapsRE.MatchString(id.Name) && strings.Contains(id.Name, "_") { + w.onFailure(lint.Failure{ + Failure: "don't use ALL_CAPS in Go names; use CamelCase", + Confidence: 0.8, + Node: id, + Category: "naming", + }) + return + } + if len(id.Name) > 2 && id.Name[0] == 'k' && id.Name[1] >= 'A' && id.Name[1] <= 'Z' { + should := string(id.Name[1]+'a'-'A') + id.Name[2:] + w.onFailure(lint.Failure{ + Failure: fmt.Sprintf("don't use leading k in Go names; %s %s should be %s", thing, id.Name, should), + Confidence: 0.8, + Node: id, + Category: "naming", + }) + } + + should := lint.Name(id.Name, w.whitelist, w.blacklist) + if id.Name == should { + return + } + + if len(id.Name) > 2 && strings.Contains(id.Name[1:], "_") { + w.onFailure(lint.Failure{ + Failure: fmt.Sprintf("don't use underscores in Go names; %s %s should be %s", thing, id.Name, should), + Confidence: 0.9, + Node: id, + Category: "naming", + }) + return + } + w.onFailure(lint.Failure{ + Failure: fmt.Sprintf("%s %s should be %s", thing, id.Name, should), + Confidence: 0.8, + Node: id, + Category: "naming", + }) +} + +type lintNames struct { + file *lint.File + fileAst *ast.File + lastGen *ast.GenDecl + genDeclMissingComments map[*ast.GenDecl]bool + onFailure func(lint.Failure) + whitelist []string + blacklist []string +} + +func (w *lintNames) Visit(n ast.Node) ast.Visitor { + switch v := n.(type) { + case *ast.AssignStmt: + if v.Tok == token.ASSIGN { + return w + } + for _, exp := range v.Lhs { + if id, ok := exp.(*ast.Ident); ok { + check(id, "var", w) + } + } + case *ast.FuncDecl: + if w.file.IsTest() && (strings.HasPrefix(v.Name.Name, "Example") || strings.HasPrefix(v.Name.Name, "Test") || strings.HasPrefix(v.Name.Name, "Benchmark")) { + return w + } + + thing := "func" + if v.Recv != nil { + thing = "method" + } + + // Exclude naming warnings for functions that are exported to C but + // not exported in the Go API. + // See https://github.com/golang/lint/issues/144. + if ast.IsExported(v.Name.Name) || !isCgoExported(v) { + check(v.Name, thing, w) + } + + checkList(v.Type.Params, thing+" parameter", w) + checkList(v.Type.Results, thing+" result", w) + case *ast.GenDecl: + if v.Tok == token.IMPORT { + return w + } + var thing string + switch v.Tok { + case token.CONST: + thing = "const" + case token.TYPE: + thing = "type" + case token.VAR: + thing = "var" + } + for _, spec := range v.Specs { + switch s := spec.(type) { + case *ast.TypeSpec: + check(s.Name, thing, w) + case *ast.ValueSpec: + for _, id := range s.Names { + check(id, thing, w) + } + } + } + case *ast.InterfaceType: + // Do not check interface method names. + // They are often constrainted by the method names of concrete types. + for _, x := range v.Methods.List { + ft, ok := x.Type.(*ast.FuncType) + if !ok { // might be an embedded interface name + continue + } + checkList(ft.Params, "interface method parameter", w) + checkList(ft.Results, "interface method result", w) + } + case *ast.RangeStmt: + if v.Tok == token.ASSIGN { + return w + } + if id, ok := v.Key.(*ast.Ident); ok { + check(id, "range var", w) + } + if id, ok := v.Value.(*ast.Ident); ok { + check(id, "range var", w) + } + case *ast.StructType: + for _, f := range v.Fields.List { + for _, id := range f.Names { + check(id, "struct field", w) + } + } + } + return w +} + +func getList(arg interface{}, argName string) []string { + temp, ok := arg.([]interface{}) + if !ok { + panic(fmt.Sprintf("Invalid argument to the var-naming rule. Expecting a %s of type slice with initialisms, got %T", argName, arg)) + } + var list []string + for _, v := range temp { + if val, ok := v.(string); ok { + list = append(list, val) + } else { + panic(fmt.Sprintf("Invalid %s values of the var-naming rule. Expecting slice of strings but got element of type %T", val, arg)) + } + } + return list +} diff --git a/vendor/github.com/mgechev/revive/rule/waitgroup-by-value.go b/vendor/github.com/mgechev/revive/rule/waitgroup-by-value.go new file mode 100644 index 000000000..b86929136 --- /dev/null +++ b/vendor/github.com/mgechev/revive/rule/waitgroup-by-value.go @@ -0,0 +1,66 @@ +package rule + +import ( + "go/ast" + + "github.com/mgechev/revive/lint" +) + +// WaitGroupByValueRule lints sync.WaitGroup passed by copy in functions. +type WaitGroupByValueRule struct{} + +// Apply applies the rule to given file. +func (r *WaitGroupByValueRule) Apply(file *lint.File, _ lint.Arguments) []lint.Failure { + var failures []lint.Failure + + onFailure := func(failure lint.Failure) { + failures = append(failures, failure) + } + + w := lintWaitGroupByValueRule{onFailure: onFailure} + ast.Walk(w, file.AST) + return failures +} + +// Name returns the rule name. +func (r *WaitGroupByValueRule) Name() string { + return "waitgroup-by-value" +} + +type lintWaitGroupByValueRule struct { + onFailure func(lint.Failure) +} + +func (w lintWaitGroupByValueRule) Visit(node ast.Node) ast.Visitor { + // look for function declarations + fd, ok := node.(*ast.FuncDecl) + if !ok { + return w + } + + // Check all function's parameters + for _, field := range fd.Type.Params.List { + if !w.isWaitGroup(field.Type) { + continue + } + + w.onFailure(lint.Failure{ + Confidence: 1, + Node: field, + Failure: "sync.WaitGroup passed by value, the function will get a copy of the original one", + }) + } + + return nil +} + +func (lintWaitGroupByValueRule) isWaitGroup(ft ast.Expr) bool { + se, ok := ft.(*ast.SelectorExpr) + if !ok { + return false + } + + x, _ := se.X.(*ast.Ident) + sel := se.Sel.Name + return x.Name == "sync" && sel == "WaitGroup" +} diff --git a/vendor/github.com/olekukonko/tablewriter/.gitignore b/vendor/github.com/olekukonko/tablewriter/.gitignore new file mode 100644 index 000000000..b66cec635 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/.gitignore @@ -0,0 +1,15 @@ +# Created by .ignore support plugin (hsz.mobi) +### Go template +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, build with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + diff --git a/vendor/github.com/olekukonko/tablewriter/.travis.yml b/vendor/github.com/olekukonko/tablewriter/.travis.yml new file mode 100644 index 000000000..9c64270e2 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/.travis.yml @@ -0,0 +1,14 @@ +language: go + +go: + - 1.1 + - 1.2 + - 1.3 + - 1.4 + - 1.5 + - 1.6 + - 1.7 + - 1.8 + - 1.9 + - "1.10" + - tip diff --git a/vendor/github.com/olekukonko/tablewriter/LICENSE.md b/vendor/github.com/olekukonko/tablewriter/LICENSE.md new file mode 100644 index 000000000..a0769b5c1 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/LICENSE.md @@ -0,0 +1,19 @@ +Copyright (C) 2014 by Oleku Konko + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/vendor/github.com/olekukonko/tablewriter/README.md b/vendor/github.com/olekukonko/tablewriter/README.md new file mode 100644 index 000000000..cb9b2ef46 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/README.md @@ -0,0 +1,396 @@ +ASCII Table Writer +========= + +[![Build Status](https://travis-ci.org/olekukonko/tablewriter.png?branch=master)](https://travis-ci.org/olekukonko/tablewriter) +[![Total views](https://img.shields.io/sourcegraph/rrc/github.com/olekukonko/tablewriter.svg)](https://sourcegraph.com/github.com/olekukonko/tablewriter) +[![Godoc](https://godoc.org/github.com/olekukonko/tablewriter?status.svg)](https://godoc.org/github.com/olekukonko/tablewriter) + +Generate ASCII table on the fly ... Installation is simple as + + go get github.com/olekukonko/tablewriter + + +#### Features +- Automatic Padding +- Support Multiple Lines +- Supports Alignment +- Support Custom Separators +- Automatic Alignment of numbers & percentage +- Write directly to http , file etc via `io.Writer` +- Read directly from CSV file +- Optional row line via `SetRowLine` +- Normalise table header +- Make CSV Headers optional +- Enable or disable table border +- Set custom footer support +- Optional identical cells merging +- Set custom caption +- Optional reflowing of paragrpahs in multi-line cells. + +#### Example 1 - Basic +```go +data := [][]string{ + []string{"A", "The Good", "500"}, + []string{"B", "The Very very Bad Man", "288"}, + []string{"C", "The Ugly", "120"}, + []string{"D", "The Gopher", "800"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Name", "Sign", "Rating"}) + +for _, v := range data { + table.Append(v) +} +table.Render() // Send output +``` + +##### Output 1 +``` ++------+-----------------------+--------+ +| NAME | SIGN | RATING | ++------+-----------------------+--------+ +| A | The Good | 500 | +| B | The Very very Bad Man | 288 | +| C | The Ugly | 120 | +| D | The Gopher | 800 | ++------+-----------------------+--------+ +``` + +#### Example 2 - Without Border / Footer / Bulk Append +```go +data := [][]string{ + []string{"1/1/2014", "Domain name", "2233", "$10.98"}, + []string{"1/1/2014", "January Hosting", "2233", "$54.95"}, + []string{"1/4/2014", "February Hosting", "2233", "$51.00"}, + []string{"1/4/2014", "February Extra Bandwidth", "2233", "$30.00"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Date", "Description", "CV2", "Amount"}) +table.SetFooter([]string{"", "", "Total", "$146.93"}) // Add Footer +table.SetBorder(false) // Set Border to false +table.AppendBulk(data) // Add Bulk Data +table.Render() +``` + +##### Output 2 +``` + + DATE | DESCRIPTION | CV2 | AMOUNT +-----------+--------------------------+-------+---------- + 1/1/2014 | Domain name | 2233 | $10.98 + 1/1/2014 | January Hosting | 2233 | $54.95 + 1/4/2014 | February Hosting | 2233 | $51.00 + 1/4/2014 | February Extra Bandwidth | 2233 | $30.00 +-----------+--------------------------+-------+---------- + TOTAL | $146 93 + --------+---------- + +``` + + +#### Example 3 - CSV +```go +table, _ := tablewriter.NewCSV(os.Stdout, "testdata/test_info.csv", true) +table.SetAlignment(tablewriter.ALIGN_LEFT) // Set Alignment +table.Render() +``` + +##### Output 3 +``` ++----------+--------------+------+-----+---------+----------------+ +| FIELD | TYPE | NULL | KEY | DEFAULT | EXTRA | ++----------+--------------+------+-----+---------+----------------+ +| user_id | smallint(5) | NO | PRI | NULL | auto_increment | +| username | varchar(10) | NO | | NULL | | +| password | varchar(100) | NO | | NULL | | ++----------+--------------+------+-----+---------+----------------+ +``` + +#### Example 4 - Custom Separator +```go +table, _ := tablewriter.NewCSV(os.Stdout, "testdata/test.csv", true) +table.SetRowLine(true) // Enable row line + +// Change table lines +table.SetCenterSeparator("*") +table.SetColumnSeparator("╪") +table.SetRowSeparator("-") + +table.SetAlignment(tablewriter.ALIGN_LEFT) +table.Render() +``` + +##### Output 4 +``` +*------------*-----------*---------* +╪ FIRST NAME ╪ LAST NAME ╪ SSN ╪ +*------------*-----------*---------* +╪ John ╪ Barry ╪ 123456 ╪ +*------------*-----------*---------* +╪ Kathy ╪ Smith ╪ 687987 ╪ +*------------*-----------*---------* +╪ Bob ╪ McCornick ╪ 3979870 ╪ +*------------*-----------*---------* +``` + +#### Example 5 - Markdown Format +```go +data := [][]string{ + []string{"1/1/2014", "Domain name", "2233", "$10.98"}, + []string{"1/1/2014", "January Hosting", "2233", "$54.95"}, + []string{"1/4/2014", "February Hosting", "2233", "$51.00"}, + []string{"1/4/2014", "February Extra Bandwidth", "2233", "$30.00"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Date", "Description", "CV2", "Amount"}) +table.SetBorders(tablewriter.Border{Left: true, Top: false, Right: true, Bottom: false}) +table.SetCenterSeparator("|") +table.AppendBulk(data) // Add Bulk Data +table.Render() +``` + +##### Output 5 +``` +| DATE | DESCRIPTION | CV2 | AMOUNT | +|----------|--------------------------|------|--------| +| 1/1/2014 | Domain name | 2233 | $10.98 | +| 1/1/2014 | January Hosting | 2233 | $54.95 | +| 1/4/2014 | February Hosting | 2233 | $51.00 | +| 1/4/2014 | February Extra Bandwidth | 2233 | $30.00 | +``` + +#### Example 6 - Identical cells merging +```go +data := [][]string{ + []string{"1/1/2014", "Domain name", "1234", "$10.98"}, + []string{"1/1/2014", "January Hosting", "2345", "$54.95"}, + []string{"1/4/2014", "February Hosting", "3456", "$51.00"}, + []string{"1/4/2014", "February Extra Bandwidth", "4567", "$30.00"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Date", "Description", "CV2", "Amount"}) +table.SetFooter([]string{"", "", "Total", "$146.93"}) +table.SetAutoMergeCells(true) +table.SetRowLine(true) +table.AppendBulk(data) +table.Render() +``` + +##### Output 6 +``` ++----------+--------------------------+-------+---------+ +| DATE | DESCRIPTION | CV2 | AMOUNT | ++----------+--------------------------+-------+---------+ +| 1/1/2014 | Domain name | 1234 | $10.98 | ++ +--------------------------+-------+---------+ +| | January Hosting | 2345 | $54.95 | ++----------+--------------------------+-------+---------+ +| 1/4/2014 | February Hosting | 3456 | $51.00 | ++ +--------------------------+-------+---------+ +| | February Extra Bandwidth | 4567 | $30.00 | ++----------+--------------------------+-------+---------+ +| TOTAL | $146 93 | ++----------+--------------------------+-------+---------+ +``` + + +#### Table with color +```go +data := [][]string{ + []string{"1/1/2014", "Domain name", "2233", "$10.98"}, + []string{"1/1/2014", "January Hosting", "2233", "$54.95"}, + []string{"1/4/2014", "February Hosting", "2233", "$51.00"}, + []string{"1/4/2014", "February Extra Bandwidth", "2233", "$30.00"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Date", "Description", "CV2", "Amount"}) +table.SetFooter([]string{"", "", "Total", "$146.93"}) // Add Footer +table.SetBorder(false) // Set Border to false + +table.SetHeaderColor(tablewriter.Colors{tablewriter.Bold, tablewriter.BgGreenColor}, + tablewriter.Colors{tablewriter.FgHiRedColor, tablewriter.Bold, tablewriter.BgBlackColor}, + tablewriter.Colors{tablewriter.BgRedColor, tablewriter.FgWhiteColor}, + tablewriter.Colors{tablewriter.BgCyanColor, tablewriter.FgWhiteColor}) + +table.SetColumnColor(tablewriter.Colors{tablewriter.Bold, tablewriter.FgHiBlackColor}, + tablewriter.Colors{tablewriter.Bold, tablewriter.FgHiRedColor}, + tablewriter.Colors{tablewriter.Bold, tablewriter.FgHiBlackColor}, + tablewriter.Colors{tablewriter.Bold, tablewriter.FgBlackColor}) + +table.SetFooterColor(tablewriter.Colors{}, tablewriter.Colors{}, + tablewriter.Colors{tablewriter.Bold}, + tablewriter.Colors{tablewriter.FgHiRedColor}) + +table.AppendBulk(data) +table.Render() +``` + +#### Table with color Output +![Table with Color](https://cloud.githubusercontent.com/assets/6460392/21101956/bbc7b356-c0a1-11e6-9f36-dba694746efc.png) + +#### Example - 7 Table Cells with Color + +Individual Cell Colors from `func Rich` take precedence over Column Colors + +```go +data := [][]string{ + []string{"Test1Merge", "HelloCol2 - 1", "HelloCol3 - 1", "HelloCol4 - 1"}, + []string{"Test1Merge", "HelloCol2 - 2", "HelloCol3 - 2", "HelloCol4 - 2"}, + []string{"Test1Merge", "HelloCol2 - 3", "HelloCol3 - 3", "HelloCol4 - 3"}, + []string{"Test2Merge", "HelloCol2 - 4", "HelloCol3 - 4", "HelloCol4 - 4"}, + []string{"Test2Merge", "HelloCol2 - 5", "HelloCol3 - 5", "HelloCol4 - 5"}, + []string{"Test2Merge", "HelloCol2 - 6", "HelloCol3 - 6", "HelloCol4 - 6"}, + []string{"Test2Merge", "HelloCol2 - 7", "HelloCol3 - 7", "HelloCol4 - 7"}, + []string{"Test3Merge", "HelloCol2 - 8", "HelloCol3 - 8", "HelloCol4 - 8"}, + []string{"Test3Merge", "HelloCol2 - 9", "HelloCol3 - 9", "HelloCol4 - 9"}, + []string{"Test3Merge", "HelloCol2 - 10", "HelloCol3 -10", "HelloCol4 - 10"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Col1", "Col2", "Col3", "Col4"}) +table.SetFooter([]string{"", "", "Footer3", "Footer4"}) +table.SetBorder(false) + +table.SetHeaderColor(tablewriter.Colors{tablewriter.Bold, tablewriter.BgGreenColor}, + tablewriter.Colors{tablewriter.FgHiRedColor, tablewriter.Bold, tablewriter.BgBlackColor}, + tablewriter.Colors{tablewriter.BgRedColor, tablewriter.FgWhiteColor}, + tablewriter.Colors{tablewriter.BgCyanColor, tablewriter.FgWhiteColor}) + +table.SetColumnColor(tablewriter.Colors{tablewriter.Bold, tablewriter.FgHiBlackColor}, + tablewriter.Colors{tablewriter.Bold, tablewriter.FgHiRedColor}, + tablewriter.Colors{tablewriter.Bold, tablewriter.FgHiBlackColor}, + tablewriter.Colors{tablewriter.Bold, tablewriter.FgBlackColor}) + +table.SetFooterColor(tablewriter.Colors{}, tablewriter.Colors{}, + tablewriter.Colors{tablewriter.Bold}, + tablewriter.Colors{tablewriter.FgHiRedColor}) + +colorData1 := []string{"TestCOLOR1Merge", "HelloCol2 - COLOR1", "HelloCol3 - COLOR1", "HelloCol4 - COLOR1"} +colorData2 := []string{"TestCOLOR2Merge", "HelloCol2 - COLOR2", "HelloCol3 - COLOR2", "HelloCol4 - COLOR2"} + +for i, row := range data { + if i == 4 { + table.Rich(colorData1, []tablewriter.Colors{tablewriter.Colors{}, tablewriter.Colors{tablewriter.Normal, tablewriter.FgCyanColor}, tablewriter.Colors{tablewriter.Bold, tablewriter.FgWhiteColor}, tablewriter.Colors{}}) + table.Rich(colorData2, []tablewriter.Colors{tablewriter.Colors{tablewriter.Normal, tablewriter.FgMagentaColor}, tablewriter.Colors{}, tablewriter.Colors{tablewriter.Bold, tablewriter.BgRedColor}, tablewriter.Colors{tablewriter.FgHiGreenColor, tablewriter.Italic, tablewriter.BgHiCyanColor}}) + } + table.Append(row) +} + +table.SetAutoMergeCells(true) +table.Render() + +``` + +##### Table cells with color Output +![Table cells with Color](https://user-images.githubusercontent.com/9064687/63969376-bcd88d80-ca6f-11e9-9466-c3d954700b25.png) + +#### Example 8 - Set table caption +```go +data := [][]string{ + []string{"A", "The Good", "500"}, + []string{"B", "The Very very Bad Man", "288"}, + []string{"C", "The Ugly", "120"}, + []string{"D", "The Gopher", "800"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Name", "Sign", "Rating"}) +table.SetCaption(true, "Movie ratings.") + +for _, v := range data { + table.Append(v) +} +table.Render() // Send output +``` + +Note: Caption text will wrap with total width of rendered table. + +##### Output 7 +``` ++------+-----------------------+--------+ +| NAME | SIGN | RATING | ++------+-----------------------+--------+ +| A | The Good | 500 | +| B | The Very very Bad Man | 288 | +| C | The Ugly | 120 | +| D | The Gopher | 800 | ++------+-----------------------+--------+ +Movie ratings. +``` + +#### Example 8 - Set NoWhiteSpace and TablePadding option +```go +data := [][]string{ + {"node1.example.com", "Ready", "compute", "1.11"}, + {"node2.example.com", "Ready", "compute", "1.11"}, + {"node3.example.com", "Ready", "compute", "1.11"}, + {"node4.example.com", "NotReady", "compute", "1.11"}, +} + +table := tablewriter.NewWriter(os.Stdout) +table.SetHeader([]string{"Name", "Status", "Role", "Version"}) +table.SetAutoWrapText(false) +table.SetAutoFormatHeaders(true) +table.SetHeaderAlignment(ALIGN_LEFT) +table.SetAlignment(ALIGN_LEFT) +table.SetCenterSeparator("") +table.SetColumnSeparator("") +table.SetRowSeparator("") +table.SetHeaderLine(false) +table.SetBorder(false) +table.SetTablePadding("\t") // pad with tabs +table.SetNoWhiteSpace(true) +table.AppendBulk(data) // Add Bulk Data +table.Render() +``` + +##### Output 8 +``` +NAME STATUS ROLE VERSION +node1.example.com Ready compute 1.11 +node2.example.com Ready compute 1.11 +node3.example.com Ready compute 1.11 +node4.example.com NotReady compute 1.11 +``` + +#### Render table into a string + +Instead of rendering the table to `io.Stdout` you can also render it into a string. Go 1.10 introduced the `strings.Builder` type which implements the `io.Writer` interface and can therefore be used for this task. Example: + +```go +package main + +import ( + "strings" + "fmt" + + "github.com/olekukonko/tablewriter" +) + +func main() { + tableString := &strings.Builder{} + table := tablewriter.NewWriter(tableString) + + /* + * Code to fill the table + */ + + table.Render() + + fmt.Println(tableString.String()) +} +``` + +#### TODO +- ~~Import Directly from CSV~~ - `done` +- ~~Support for `SetFooter`~~ - `done` +- ~~Support for `SetBorder`~~ - `done` +- ~~Support table with uneven rows~~ - `done` +- ~~Support custom alignment~~ +- General Improvement & Optimisation +- `NewHTML` Parse table from HTML diff --git a/vendor/github.com/olekukonko/tablewriter/csv.go b/vendor/github.com/olekukonko/tablewriter/csv.go new file mode 100644 index 000000000..98878303b --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/csv.go @@ -0,0 +1,52 @@ +// Copyright 2014 Oleku Konko All rights reserved. +// Use of this source code is governed by a MIT +// license that can be found in the LICENSE file. + +// This module is a Table Writer API for the Go Programming Language. +// The protocols were written in pure Go and works on windows and unix systems + +package tablewriter + +import ( + "encoding/csv" + "io" + "os" +) + +// Start A new table by importing from a CSV file +// Takes io.Writer and csv File name +func NewCSV(writer io.Writer, fileName string, hasHeader bool) (*Table, error) { + file, err := os.Open(fileName) + if err != nil { + return &Table{}, err + } + defer file.Close() + csvReader := csv.NewReader(file) + t, err := NewCSVReader(writer, csvReader, hasHeader) + return t, err +} + +// Start a New Table Writer with csv.Reader +// This enables customisation such as reader.Comma = ';' +// See http://golang.org/src/pkg/encoding/csv/reader.go?s=3213:3671#L94 +func NewCSVReader(writer io.Writer, csvReader *csv.Reader, hasHeader bool) (*Table, error) { + t := NewWriter(writer) + if hasHeader { + // Read the first row + headers, err := csvReader.Read() + if err != nil { + return &Table{}, err + } + t.SetHeader(headers) + } + for { + record, err := csvReader.Read() + if err == io.EOF { + break + } else if err != nil { + return &Table{}, err + } + t.Append(record) + } + return t, nil +} diff --git a/vendor/github.com/olekukonko/tablewriter/go.mod b/vendor/github.com/olekukonko/tablewriter/go.mod new file mode 100644 index 000000000..0430d99b0 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/go.mod @@ -0,0 +1,5 @@ +module github.com/olekukonko/tablewriter + +go 1.12 + +require github.com/mattn/go-runewidth v0.0.7 diff --git a/vendor/github.com/olekukonko/tablewriter/go.sum b/vendor/github.com/olekukonko/tablewriter/go.sum new file mode 100644 index 000000000..1e7b9aabd --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/go.sum @@ -0,0 +1,2 @@ +github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54= +github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI= diff --git a/vendor/github.com/olekukonko/tablewriter/table.go b/vendor/github.com/olekukonko/tablewriter/table.go new file mode 100644 index 000000000..cf63eadfc --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/table.go @@ -0,0 +1,941 @@ +// Copyright 2014 Oleku Konko All rights reserved. +// Use of this source code is governed by a MIT +// license that can be found in the LICENSE file. + +// This module is a Table Writer API for the Go Programming Language. +// The protocols were written in pure Go and works on windows and unix systems + +// Create & Generate text based table +package tablewriter + +import ( + "bytes" + "fmt" + "io" + "regexp" + "strings" +) + +const ( + MAX_ROW_WIDTH = 30 +) + +const ( + CENTER = "+" + ROW = "-" + COLUMN = "|" + SPACE = " " + NEWLINE = "\n" +) + +const ( + ALIGN_DEFAULT = iota + ALIGN_CENTER + ALIGN_RIGHT + ALIGN_LEFT +) + +var ( + decimal = regexp.MustCompile(`^-?(?:\d{1,3}(?:,\d{3})*|\d+)(?:\.\d+)?$`) + percent = regexp.MustCompile(`^-?\d+\.?\d*$%$`) +) + +type Border struct { + Left bool + Right bool + Top bool + Bottom bool +} + +type Table struct { + out io.Writer + rows [][]string + lines [][][]string + cs map[int]int + rs map[int]int + headers [][]string + footers [][]string + caption bool + captionText string + autoFmt bool + autoWrap bool + reflowText bool + mW int + pCenter string + pRow string + pColumn string + tColumn int + tRow int + hAlign int + fAlign int + align int + newLine string + rowLine bool + autoMergeCells bool + noWhiteSpace bool + tablePadding string + hdrLine bool + borders Border + colSize int + headerParams []string + columnsParams []string + footerParams []string + columnsAlign []int +} + +// Start New Table +// Take io.Writer Directly +func NewWriter(writer io.Writer) *Table { + t := &Table{ + out: writer, + rows: [][]string{}, + lines: [][][]string{}, + cs: make(map[int]int), + rs: make(map[int]int), + headers: [][]string{}, + footers: [][]string{}, + caption: false, + captionText: "Table caption.", + autoFmt: true, + autoWrap: true, + reflowText: true, + mW: MAX_ROW_WIDTH, + pCenter: CENTER, + pRow: ROW, + pColumn: COLUMN, + tColumn: -1, + tRow: -1, + hAlign: ALIGN_DEFAULT, + fAlign: ALIGN_DEFAULT, + align: ALIGN_DEFAULT, + newLine: NEWLINE, + rowLine: false, + hdrLine: true, + borders: Border{Left: true, Right: true, Bottom: true, Top: true}, + colSize: -1, + headerParams: []string{}, + columnsParams: []string{}, + footerParams: []string{}, + columnsAlign: []int{}} + return t +} + +// Render table output +func (t *Table) Render() { + if t.borders.Top { + t.printLine(true) + } + t.printHeading() + if t.autoMergeCells { + t.printRowsMergeCells() + } else { + t.printRows() + } + if !t.rowLine && t.borders.Bottom { + t.printLine(true) + } + t.printFooter() + + if t.caption { + t.printCaption() + } +} + +const ( + headerRowIdx = -1 + footerRowIdx = -2 +) + +// Set table header +func (t *Table) SetHeader(keys []string) { + t.colSize = len(keys) + for i, v := range keys { + lines := t.parseDimension(v, i, headerRowIdx) + t.headers = append(t.headers, lines) + } +} + +// Set table Footer +func (t *Table) SetFooter(keys []string) { + //t.colSize = len(keys) + for i, v := range keys { + lines := t.parseDimension(v, i, footerRowIdx) + t.footers = append(t.footers, lines) + } +} + +// Set table Caption +func (t *Table) SetCaption(caption bool, captionText ...string) { + t.caption = caption + if len(captionText) == 1 { + t.captionText = captionText[0] + } +} + +// Turn header autoformatting on/off. Default is on (true). +func (t *Table) SetAutoFormatHeaders(auto bool) { + t.autoFmt = auto +} + +// Turn automatic multiline text adjustment on/off. Default is on (true). +func (t *Table) SetAutoWrapText(auto bool) { + t.autoWrap = auto +} + +// Turn automatic reflowing of multiline text when rewrapping. Default is on (true). +func (t *Table) SetReflowDuringAutoWrap(auto bool) { + t.reflowText = auto +} + +// Set the Default column width +func (t *Table) SetColWidth(width int) { + t.mW = width +} + +// Set the minimal width for a column +func (t *Table) SetColMinWidth(column int, width int) { + t.cs[column] = width +} + +// Set the Column Separator +func (t *Table) SetColumnSeparator(sep string) { + t.pColumn = sep +} + +// Set the Row Separator +func (t *Table) SetRowSeparator(sep string) { + t.pRow = sep +} + +// Set the center Separator +func (t *Table) SetCenterSeparator(sep string) { + t.pCenter = sep +} + +// Set Header Alignment +func (t *Table) SetHeaderAlignment(hAlign int) { + t.hAlign = hAlign +} + +// Set Footer Alignment +func (t *Table) SetFooterAlignment(fAlign int) { + t.fAlign = fAlign +} + +// Set Table Alignment +func (t *Table) SetAlignment(align int) { + t.align = align +} + +// Set No White Space +func (t *Table) SetNoWhiteSpace(allow bool) { + t.noWhiteSpace = allow +} + +// Set Table Padding +func (t *Table) SetTablePadding(padding string) { + t.tablePadding = padding +} + +func (t *Table) SetColumnAlignment(keys []int) { + for _, v := range keys { + switch v { + case ALIGN_CENTER: + break + case ALIGN_LEFT: + break + case ALIGN_RIGHT: + break + default: + v = ALIGN_DEFAULT + } + t.columnsAlign = append(t.columnsAlign, v) + } +} + +// Set New Line +func (t *Table) SetNewLine(nl string) { + t.newLine = nl +} + +// Set Header Line +// This would enable / disable a line after the header +func (t *Table) SetHeaderLine(line bool) { + t.hdrLine = line +} + +// Set Row Line +// This would enable / disable a line on each row of the table +func (t *Table) SetRowLine(line bool) { + t.rowLine = line +} + +// Set Auto Merge Cells +// This would enable / disable the merge of cells with identical values +func (t *Table) SetAutoMergeCells(auto bool) { + t.autoMergeCells = auto +} + +// Set Table Border +// This would enable / disable line around the table +func (t *Table) SetBorder(border bool) { + t.SetBorders(Border{border, border, border, border}) +} + +func (t *Table) SetBorders(border Border) { + t.borders = border +} + +// Append row to table +func (t *Table) Append(row []string) { + rowSize := len(t.headers) + if rowSize > t.colSize { + t.colSize = rowSize + } + + n := len(t.lines) + line := [][]string{} + for i, v := range row { + + // Detect string width + // Detect String height + // Break strings into words + out := t.parseDimension(v, i, n) + + // Append broken words + line = append(line, out) + } + t.lines = append(t.lines, line) +} + +// Append row to table with color attributes +func (t *Table) Rich(row []string, colors []Colors) { + rowSize := len(t.headers) + if rowSize > t.colSize { + t.colSize = rowSize + } + + n := len(t.lines) + line := [][]string{} + for i, v := range row { + + // Detect string width + // Detect String height + // Break strings into words + out := t.parseDimension(v, i, n) + + if len(colors) > i { + color := colors[i] + out[0] = format(out[0], color) + } + + // Append broken words + line = append(line, out) + } + t.lines = append(t.lines, line) +} + +// Allow Support for Bulk Append +// Eliminates repeated for loops +func (t *Table) AppendBulk(rows [][]string) { + for _, row := range rows { + t.Append(row) + } +} + +// NumLines to get the number of lines +func (t *Table) NumLines() int { + return len(t.lines) +} + +// Clear rows +func (t *Table) ClearRows() { + t.lines = [][][]string{} +} + +// Clear footer +func (t *Table) ClearFooter() { + t.footers = [][]string{} +} + +// Center based on position and border. +func (t *Table) center(i int) string { + if i == -1 && !t.borders.Left { + return t.pRow + } + + if i == len(t.cs)-1 && !t.borders.Right { + return t.pRow + } + + return t.pCenter +} + +// Print line based on row width +func (t *Table) printLine(nl bool) { + fmt.Fprint(t.out, t.center(-1)) + for i := 0; i < len(t.cs); i++ { + v := t.cs[i] + fmt.Fprintf(t.out, "%s%s%s%s", + t.pRow, + strings.Repeat(string(t.pRow), v), + t.pRow, + t.center(i)) + } + if nl { + fmt.Fprint(t.out, t.newLine) + } +} + +// Print line based on row width with our without cell separator +func (t *Table) printLineOptionalCellSeparators(nl bool, displayCellSeparator []bool) { + fmt.Fprint(t.out, t.pCenter) + for i := 0; i < len(t.cs); i++ { + v := t.cs[i] + if i > len(displayCellSeparator) || displayCellSeparator[i] { + // Display the cell separator + fmt.Fprintf(t.out, "%s%s%s%s", + t.pRow, + strings.Repeat(string(t.pRow), v), + t.pRow, + t.pCenter) + } else { + // Don't display the cell separator for this cell + fmt.Fprintf(t.out, "%s%s", + strings.Repeat(" ", v+2), + t.pCenter) + } + } + if nl { + fmt.Fprint(t.out, t.newLine) + } +} + +// Return the PadRight function if align is left, PadLeft if align is right, +// and Pad by default +func pad(align int) func(string, string, int) string { + padFunc := Pad + switch align { + case ALIGN_LEFT: + padFunc = PadRight + case ALIGN_RIGHT: + padFunc = PadLeft + } + return padFunc +} + +// Print heading information +func (t *Table) printHeading() { + // Check if headers is available + if len(t.headers) < 1 { + return + } + + // Identify last column + end := len(t.cs) - 1 + + // Get pad function + padFunc := pad(t.hAlign) + + // Checking for ANSI escape sequences for header + is_esc_seq := false + if len(t.headerParams) > 0 { + is_esc_seq = true + } + + // Maximum height. + max := t.rs[headerRowIdx] + + // Print Heading + for x := 0; x < max; x++ { + // Check if border is set + // Replace with space if not set + if !t.noWhiteSpace { + fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE)) + } + + for y := 0; y <= end; y++ { + v := t.cs[y] + h := "" + + if y < len(t.headers) && x < len(t.headers[y]) { + h = t.headers[y][x] + } + if t.autoFmt { + h = Title(h) + } + pad := ConditionString((y == end && !t.borders.Left), SPACE, t.pColumn) + if t.noWhiteSpace { + pad = ConditionString((y == end && !t.borders.Left), SPACE, t.tablePadding) + } + if is_esc_seq { + if !t.noWhiteSpace { + fmt.Fprintf(t.out, " %s %s", + format(padFunc(h, SPACE, v), + t.headerParams[y]), pad) + } else { + fmt.Fprintf(t.out, "%s %s", + format(padFunc(h, SPACE, v), + t.headerParams[y]), pad) + } + } else { + if !t.noWhiteSpace { + fmt.Fprintf(t.out, " %s %s", + padFunc(h, SPACE, v), + pad) + } else { + // the spaces between breaks the kube formatting + fmt.Fprintf(t.out, "%s%s", + padFunc(h, SPACE, v), + pad) + } + } + } + // Next line + fmt.Fprint(t.out, t.newLine) + } + if t.hdrLine { + t.printLine(true) + } +} + +// Print heading information +func (t *Table) printFooter() { + // Check if headers is available + if len(t.footers) < 1 { + return + } + + // Only print line if border is not set + if !t.borders.Bottom { + t.printLine(true) + } + + // Identify last column + end := len(t.cs) - 1 + + // Get pad function + padFunc := pad(t.fAlign) + + // Checking for ANSI escape sequences for header + is_esc_seq := false + if len(t.footerParams) > 0 { + is_esc_seq = true + } + + // Maximum height. + max := t.rs[footerRowIdx] + + // Print Footer + erasePad := make([]bool, len(t.footers)) + for x := 0; x < max; x++ { + // Check if border is set + // Replace with space if not set + fmt.Fprint(t.out, ConditionString(t.borders.Bottom, t.pColumn, SPACE)) + + for y := 0; y <= end; y++ { + v := t.cs[y] + f := "" + if y < len(t.footers) && x < len(t.footers[y]) { + f = t.footers[y][x] + } + if t.autoFmt { + f = Title(f) + } + pad := ConditionString((y == end && !t.borders.Top), SPACE, t.pColumn) + + if erasePad[y] || (x == 0 && len(f) == 0) { + pad = SPACE + erasePad[y] = true + } + + if is_esc_seq { + fmt.Fprintf(t.out, " %s %s", + format(padFunc(f, SPACE, v), + t.footerParams[y]), pad) + } else { + fmt.Fprintf(t.out, " %s %s", + padFunc(f, SPACE, v), + pad) + } + + //fmt.Fprintf(t.out, " %s %s", + // padFunc(f, SPACE, v), + // pad) + } + // Next line + fmt.Fprint(t.out, t.newLine) + //t.printLine(true) + } + + hasPrinted := false + + for i := 0; i <= end; i++ { + v := t.cs[i] + pad := t.pRow + center := t.pCenter + length := len(t.footers[i][0]) + + if length > 0 { + hasPrinted = true + } + + // Set center to be space if length is 0 + if length == 0 && !t.borders.Right { + center = SPACE + } + + // Print first junction + if i == 0 { + if length > 0 && !t.borders.Left { + center = t.pRow + } + fmt.Fprint(t.out, center) + } + + // Pad With space of length is 0 + if length == 0 { + pad = SPACE + } + // Ignore left space as it has printed before + if hasPrinted || t.borders.Left { + pad = t.pRow + center = t.pCenter + } + + // Change Center end position + if center != SPACE { + if i == end && !t.borders.Right { + center = t.pRow + } + } + + // Change Center start position + if center == SPACE { + if i < end && len(t.footers[i+1][0]) != 0 { + if !t.borders.Left { + center = t.pRow + } else { + center = t.pCenter + } + } + } + + // Print the footer + fmt.Fprintf(t.out, "%s%s%s%s", + pad, + strings.Repeat(string(pad), v), + pad, + center) + + } + + fmt.Fprint(t.out, t.newLine) +} + +// Print caption text +func (t Table) printCaption() { + width := t.getTableWidth() + paragraph, _ := WrapString(t.captionText, width) + for linecount := 0; linecount < len(paragraph); linecount++ { + fmt.Fprintln(t.out, paragraph[linecount]) + } +} + +// Calculate the total number of characters in a row +func (t Table) getTableWidth() int { + var chars int + for _, v := range t.cs { + chars += v + } + + // Add chars, spaces, seperators to calculate the total width of the table. + // ncols := t.colSize + // spaces := ncols * 2 + // seps := ncols + 1 + + return (chars + (3 * t.colSize) + 2) +} + +func (t Table) printRows() { + for i, lines := range t.lines { + t.printRow(lines, i) + } +} + +func (t *Table) fillAlignment(num int) { + if len(t.columnsAlign) < num { + t.columnsAlign = make([]int, num) + for i := range t.columnsAlign { + t.columnsAlign[i] = t.align + } + } +} + +// Print Row Information +// Adjust column alignment based on type + +func (t *Table) printRow(columns [][]string, rowIdx int) { + // Get Maximum Height + max := t.rs[rowIdx] + total := len(columns) + + // TODO Fix uneven col size + // if total < t.colSize { + // for n := t.colSize - total; n < t.colSize ; n++ { + // columns = append(columns, []string{SPACE}) + // t.cs[n] = t.mW + // } + //} + + // Pad Each Height + pads := []int{} + + // Checking for ANSI escape sequences for columns + is_esc_seq := false + if len(t.columnsParams) > 0 { + is_esc_seq = true + } + t.fillAlignment(total) + + for i, line := range columns { + length := len(line) + pad := max - length + pads = append(pads, pad) + for n := 0; n < pad; n++ { + columns[i] = append(columns[i], " ") + } + } + //fmt.Println(max, "\n") + for x := 0; x < max; x++ { + for y := 0; y < total; y++ { + + // Check if border is set + if !t.noWhiteSpace { + fmt.Fprint(t.out, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn)) + fmt.Fprintf(t.out, SPACE) + } + + str := columns[y][x] + + // Embedding escape sequence with column value + if is_esc_seq { + str = format(str, t.columnsParams[y]) + } + + // This would print alignment + // Default alignment would use multiple configuration + switch t.columnsAlign[y] { + case ALIGN_CENTER: // + fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y])) + case ALIGN_RIGHT: + fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y])) + case ALIGN_LEFT: + fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) + default: + if decimal.MatchString(strings.TrimSpace(str)) || percent.MatchString(strings.TrimSpace(str)) { + fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y])) + } else { + fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) + + // TODO Custom alignment per column + //if max == 1 || pads[y] > 0 { + // fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y])) + //} else { + // fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) + //} + + } + } + if !t.noWhiteSpace { + fmt.Fprintf(t.out, SPACE) + } else { + fmt.Fprintf(t.out, t.tablePadding) + } + } + // Check if border is set + // Replace with space if not set + if !t.noWhiteSpace { + fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE)) + } + fmt.Fprint(t.out, t.newLine) + } + + if t.rowLine { + t.printLine(true) + } +} + +// Print the rows of the table and merge the cells that are identical +func (t *Table) printRowsMergeCells() { + var previousLine []string + var displayCellBorder []bool + var tmpWriter bytes.Buffer + for i, lines := range t.lines { + // We store the display of the current line in a tmp writer, as we need to know which border needs to be print above + previousLine, displayCellBorder = t.printRowMergeCells(&tmpWriter, lines, i, previousLine) + if i > 0 { //We don't need to print borders above first line + if t.rowLine { + t.printLineOptionalCellSeparators(true, displayCellBorder) + } + } + tmpWriter.WriteTo(t.out) + } + //Print the end of the table + if t.rowLine { + t.printLine(true) + } +} + +// Print Row Information to a writer and merge identical cells. +// Adjust column alignment based on type + +func (t *Table) printRowMergeCells(writer io.Writer, columns [][]string, rowIdx int, previousLine []string) ([]string, []bool) { + // Get Maximum Height + max := t.rs[rowIdx] + total := len(columns) + + // Pad Each Height + pads := []int{} + + // Checking for ANSI escape sequences for columns + is_esc_seq := false + if len(t.columnsParams) > 0 { + is_esc_seq = true + } + for i, line := range columns { + length := len(line) + pad := max - length + pads = append(pads, pad) + for n := 0; n < pad; n++ { + columns[i] = append(columns[i], " ") + } + } + + var displayCellBorder []bool + t.fillAlignment(total) + for x := 0; x < max; x++ { + for y := 0; y < total; y++ { + + // Check if border is set + fmt.Fprint(writer, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn)) + + fmt.Fprintf(writer, SPACE) + + str := columns[y][x] + + // Embedding escape sequence with column value + if is_esc_seq { + str = format(str, t.columnsParams[y]) + } + + if t.autoMergeCells { + //Store the full line to merge mutli-lines cells + fullLine := strings.TrimRight(strings.Join(columns[y], " "), " ") + if len(previousLine) > y && fullLine == previousLine[y] && fullLine != "" { + // If this cell is identical to the one above but not empty, we don't display the border and keep the cell empty. + displayCellBorder = append(displayCellBorder, false) + str = "" + } else { + // First line or different content, keep the content and print the cell border + displayCellBorder = append(displayCellBorder, true) + } + } + + // This would print alignment + // Default alignment would use multiple configuration + switch t.columnsAlign[y] { + case ALIGN_CENTER: // + fmt.Fprintf(writer, "%s", Pad(str, SPACE, t.cs[y])) + case ALIGN_RIGHT: + fmt.Fprintf(writer, "%s", PadLeft(str, SPACE, t.cs[y])) + case ALIGN_LEFT: + fmt.Fprintf(writer, "%s", PadRight(str, SPACE, t.cs[y])) + default: + if decimal.MatchString(strings.TrimSpace(str)) || percent.MatchString(strings.TrimSpace(str)) { + fmt.Fprintf(writer, "%s", PadLeft(str, SPACE, t.cs[y])) + } else { + fmt.Fprintf(writer, "%s", PadRight(str, SPACE, t.cs[y])) + } + } + fmt.Fprintf(writer, SPACE) + } + // Check if border is set + // Replace with space if not set + fmt.Fprint(writer, ConditionString(t.borders.Left, t.pColumn, SPACE)) + fmt.Fprint(writer, t.newLine) + } + + //The new previous line is the current one + previousLine = make([]string, total) + for y := 0; y < total; y++ { + previousLine[y] = strings.TrimRight(strings.Join(columns[y], " "), " ") //Store the full line for multi-lines cells + } + //Returns the newly added line and wether or not a border should be displayed above. + return previousLine, displayCellBorder +} + +func (t *Table) parseDimension(str string, colKey, rowKey int) []string { + var ( + raw []string + maxWidth int + ) + + raw = getLines(str) + maxWidth = 0 + for _, line := range raw { + if w := DisplayWidth(line); w > maxWidth { + maxWidth = w + } + } + + // If wrapping, ensure that all paragraphs in the cell fit in the + // specified width. + if t.autoWrap { + // If there's a maximum allowed width for wrapping, use that. + if maxWidth > t.mW { + maxWidth = t.mW + } + + // In the process of doing so, we need to recompute maxWidth. This + // is because perhaps a word in the cell is longer than the + // allowed maximum width in t.mW. + newMaxWidth := maxWidth + newRaw := make([]string, 0, len(raw)) + + if t.reflowText { + // Make a single paragraph of everything. + raw = []string{strings.Join(raw, " ")} + } + for i, para := range raw { + paraLines, _ := WrapString(para, maxWidth) + for _, line := range paraLines { + if w := DisplayWidth(line); w > newMaxWidth { + newMaxWidth = w + } + } + if i > 0 { + newRaw = append(newRaw, " ") + } + newRaw = append(newRaw, paraLines...) + } + raw = newRaw + maxWidth = newMaxWidth + } + + // Store the new known maximum width. + v, ok := t.cs[colKey] + if !ok || v < maxWidth || v == 0 { + t.cs[colKey] = maxWidth + } + + // Remember the number of lines for the row printer. + h := len(raw) + v, ok = t.rs[rowKey] + + if !ok || v < h || v == 0 { + t.rs[rowKey] = h + } + //fmt.Printf("Raw %+v %d\n", raw, len(raw)) + return raw +} diff --git a/vendor/github.com/olekukonko/tablewriter/table_with_color.go b/vendor/github.com/olekukonko/tablewriter/table_with_color.go new file mode 100644 index 000000000..ae7a364ae --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/table_with_color.go @@ -0,0 +1,136 @@ +package tablewriter + +import ( + "fmt" + "strconv" + "strings" +) + +const ESC = "\033" +const SEP = ";" + +const ( + BgBlackColor int = iota + 40 + BgRedColor + BgGreenColor + BgYellowColor + BgBlueColor + BgMagentaColor + BgCyanColor + BgWhiteColor +) + +const ( + FgBlackColor int = iota + 30 + FgRedColor + FgGreenColor + FgYellowColor + FgBlueColor + FgMagentaColor + FgCyanColor + FgWhiteColor +) + +const ( + BgHiBlackColor int = iota + 100 + BgHiRedColor + BgHiGreenColor + BgHiYellowColor + BgHiBlueColor + BgHiMagentaColor + BgHiCyanColor + BgHiWhiteColor +) + +const ( + FgHiBlackColor int = iota + 90 + FgHiRedColor + FgHiGreenColor + FgHiYellowColor + FgHiBlueColor + FgHiMagentaColor + FgHiCyanColor + FgHiWhiteColor +) + +const ( + Normal = 0 + Bold = 1 + UnderlineSingle = 4 + Italic +) + +type Colors []int + +func startFormat(seq string) string { + return fmt.Sprintf("%s[%sm", ESC, seq) +} + +func stopFormat() string { + return fmt.Sprintf("%s[%dm", ESC, Normal) +} + +// Making the SGR (Select Graphic Rendition) sequence. +func makeSequence(codes []int) string { + codesInString := []string{} + for _, code := range codes { + codesInString = append(codesInString, strconv.Itoa(code)) + } + return strings.Join(codesInString, SEP) +} + +// Adding ANSI escape sequences before and after string +func format(s string, codes interface{}) string { + var seq string + + switch v := codes.(type) { + + case string: + seq = v + case []int: + seq = makeSequence(v) + case Colors: + seq = makeSequence(v) + default: + return s + } + + if len(seq) == 0 { + return s + } + return startFormat(seq) + s + stopFormat() +} + +// Adding header colors (ANSI codes) +func (t *Table) SetHeaderColor(colors ...Colors) { + if t.colSize != len(colors) { + panic("Number of header colors must be equal to number of headers.") + } + for i := 0; i < len(colors); i++ { + t.headerParams = append(t.headerParams, makeSequence(colors[i])) + } +} + +// Adding column colors (ANSI codes) +func (t *Table) SetColumnColor(colors ...Colors) { + if t.colSize != len(colors) { + panic("Number of column colors must be equal to number of headers.") + } + for i := 0; i < len(colors); i++ { + t.columnsParams = append(t.columnsParams, makeSequence(colors[i])) + } +} + +// Adding column colors (ANSI codes) +func (t *Table) SetFooterColor(colors ...Colors) { + if len(t.footers) != len(colors) { + panic("Number of footer colors must be equal to number of footer.") + } + for i := 0; i < len(colors); i++ { + t.footerParams = append(t.footerParams, makeSequence(colors[i])) + } +} + +func Color(colors ...int) []int { + return colors +} diff --git a/vendor/github.com/olekukonko/tablewriter/util.go b/vendor/github.com/olekukonko/tablewriter/util.go new file mode 100644 index 000000000..380e7ab35 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/util.go @@ -0,0 +1,93 @@ +// Copyright 2014 Oleku Konko All rights reserved. +// Use of this source code is governed by a MIT +// license that can be found in the LICENSE file. + +// This module is a Table Writer API for the Go Programming Language. +// The protocols were written in pure Go and works on windows and unix systems + +package tablewriter + +import ( + "math" + "regexp" + "strings" + + "github.com/mattn/go-runewidth" +) + +var ansi = regexp.MustCompile("\033\\[(?:[0-9]{1,3}(?:;[0-9]{1,3})*)?[m|K]") + +func DisplayWidth(str string) int { + return runewidth.StringWidth(ansi.ReplaceAllLiteralString(str, "")) +} + +// Simple Condition for string +// Returns value based on condition +func ConditionString(cond bool, valid, inValid string) string { + if cond { + return valid + } + return inValid +} + +func isNumOrSpace(r rune) bool { + return ('0' <= r && r <= '9') || r == ' ' +} + +// Format Table Header +// Replace _ , . and spaces +func Title(name string) string { + origLen := len(name) + rs := []rune(name) + for i, r := range rs { + switch r { + case '_': + rs[i] = ' ' + case '.': + // ignore floating number 0.0 + if (i != 0 && !isNumOrSpace(rs[i-1])) || (i != len(rs)-1 && !isNumOrSpace(rs[i+1])) { + rs[i] = ' ' + } + } + } + name = string(rs) + name = strings.TrimSpace(name) + if len(name) == 0 && origLen > 0 { + // Keep at least one character. This is important to preserve + // empty lines in multi-line headers/footers. + name = " " + } + return strings.ToUpper(name) +} + +// Pad String +// Attempts to place string in the center +func Pad(s, pad string, width int) string { + gap := width - DisplayWidth(s) + if gap > 0 { + gapLeft := int(math.Ceil(float64(gap / 2))) + gapRight := gap - gapLeft + return strings.Repeat(string(pad), gapLeft) + s + strings.Repeat(string(pad), gapRight) + } + return s +} + +// Pad String Right position +// This would place string at the left side of the screen +func PadRight(s, pad string, width int) string { + gap := width - DisplayWidth(s) + if gap > 0 { + return s + strings.Repeat(string(pad), gap) + } + return s +} + +// Pad String Left position +// This would place string at the right side of the screen +func PadLeft(s, pad string, width int) string { + gap := width - DisplayWidth(s) + if gap > 0 { + return strings.Repeat(string(pad), gap) + s + } + return s +} diff --git a/vendor/github.com/olekukonko/tablewriter/wrap.go b/vendor/github.com/olekukonko/tablewriter/wrap.go new file mode 100644 index 000000000..a092ee1f7 --- /dev/null +++ b/vendor/github.com/olekukonko/tablewriter/wrap.go @@ -0,0 +1,99 @@ +// Copyright 2014 Oleku Konko All rights reserved. +// Use of this source code is governed by a MIT +// license that can be found in the LICENSE file. + +// This module is a Table Writer API for the Go Programming Language. +// The protocols were written in pure Go and works on windows and unix systems + +package tablewriter + +import ( + "math" + "strings" + + "github.com/mattn/go-runewidth" +) + +var ( + nl = "\n" + sp = " " +) + +const defaultPenalty = 1e5 + +// Wrap wraps s into a paragraph of lines of length lim, with minimal +// raggedness. +func WrapString(s string, lim int) ([]string, int) { + words := strings.Split(strings.Replace(s, nl, sp, -1), sp) + var lines []string + max := 0 + for _, v := range words { + max = runewidth.StringWidth(v) + if max > lim { + lim = max + } + } + for _, line := range WrapWords(words, 1, lim, defaultPenalty) { + lines = append(lines, strings.Join(line, sp)) + } + return lines, lim +} + +// WrapWords is the low-level line-breaking algorithm, useful if you need more +// control over the details of the text wrapping process. For most uses, +// WrapString will be sufficient and more convenient. +// +// WrapWords splits a list of words into lines with minimal "raggedness", +// treating each rune as one unit, accounting for spc units between adjacent +// words on each line, and attempting to limit lines to lim units. Raggedness +// is the total error over all lines, where error is the square of the +// difference of the length of the line and lim. Too-long lines (which only +// happen when a single word is longer than lim units) have pen penalty units +// added to the error. +func WrapWords(words []string, spc, lim, pen int) [][]string { + n := len(words) + + length := make([][]int, n) + for i := 0; i < n; i++ { + length[i] = make([]int, n) + length[i][i] = runewidth.StringWidth(words[i]) + for j := i + 1; j < n; j++ { + length[i][j] = length[i][j-1] + spc + runewidth.StringWidth(words[j]) + } + } + nbrk := make([]int, n) + cost := make([]int, n) + for i := range cost { + cost[i] = math.MaxInt32 + } + for i := n - 1; i >= 0; i-- { + if length[i][n-1] <= lim { + cost[i] = 0 + nbrk[i] = n + } else { + for j := i + 1; j < n; j++ { + d := lim - length[i][j-1] + c := d*d + cost[j] + if length[i][j-1] > lim { + c += pen // too-long lines get a worse penalty + } + if c < cost[i] { + cost[i] = c + nbrk[i] = j + } + } + } + } + var lines [][]string + i := 0 + for i < n { + lines = append(lines, words[i:nbrk[i]]) + i = nbrk[i] + } + return lines +} + +// getLines decomposes a multiline string into a slice of strings. +func getLines(s string) []string { + return strings.Split(s, nl) +} diff --git a/vendor/github.com/pkg/errors/.travis.yml b/vendor/github.com/pkg/errors/.travis.yml index d4b92663b..9159de03e 100644 --- a/vendor/github.com/pkg/errors/.travis.yml +++ b/vendor/github.com/pkg/errors/.travis.yml @@ -1,15 +1,10 @@ language: go go_import_path: github.com/pkg/errors go: - - 1.4.x - - 1.5.x - - 1.6.x - - 1.7.x - - 1.8.x - - 1.9.x - - 1.10.x - 1.11.x + - 1.12.x + - 1.13.x - tip script: - - go test -v ./... + - make check diff --git a/vendor/github.com/pkg/errors/Makefile b/vendor/github.com/pkg/errors/Makefile new file mode 100644 index 000000000..ce9d7cded --- /dev/null +++ b/vendor/github.com/pkg/errors/Makefile @@ -0,0 +1,44 @@ +PKGS := github.com/pkg/errors +SRCDIRS := $(shell go list -f '{{.Dir}}' $(PKGS)) +GO := go + +check: test vet gofmt misspell unconvert staticcheck ineffassign unparam + +test: + $(GO) test $(PKGS) + +vet: | test + $(GO) vet $(PKGS) + +staticcheck: + $(GO) get honnef.co/go/tools/cmd/staticcheck + staticcheck -checks all $(PKGS) + +misspell: + $(GO) get github.com/client9/misspell/cmd/misspell + misspell \ + -locale GB \ + -error \ + *.md *.go + +unconvert: + $(GO) get github.com/mdempsky/unconvert + unconvert -v $(PKGS) + +ineffassign: + $(GO) get github.com/gordonklaus/ineffassign + find $(SRCDIRS) -name '*.go' | xargs ineffassign + +pedantic: check errcheck + +unparam: + $(GO) get mvdan.cc/unparam + unparam ./... + +errcheck: + $(GO) get github.com/kisielk/errcheck + errcheck $(PKGS) + +gofmt: + @echo Checking code is gofmted + @test -z "$(shell gofmt -s -l -d -e $(SRCDIRS) | tee /dev/stderr)" diff --git a/vendor/github.com/pkg/errors/README.md b/vendor/github.com/pkg/errors/README.md index 6483ba2af..54dfdcb12 100644 --- a/vendor/github.com/pkg/errors/README.md +++ b/vendor/github.com/pkg/errors/README.md @@ -41,11 +41,18 @@ default: [Read the package documentation for more information](https://godoc.org/github.com/pkg/errors). +## Roadmap + +With the upcoming [Go2 error proposals](https://go.googlesource.com/proposal/+/master/design/go2draft.md) this package is moving into maintenance mode. The roadmap for a 1.0 release is as follows: + +- 0.9. Remove pre Go 1.9 and Go 1.10 support, address outstanding pull requests (if possible) +- 1.0. Final release. + ## Contributing -We welcome pull requests, bug fixes and issue reports. With that said, the bar for adding new symbols to this package is intentionally set high. +Because of the Go2 errors changes, this package is not accepting proposals for new functionality. With that said, we welcome pull requests, bug fixes and issue reports. -Before proposing a change, please discuss your change by raising an issue. +Before sending a PR, please discuss your change by raising an issue. ## License diff --git a/vendor/github.com/pkg/errors/errors.go b/vendor/github.com/pkg/errors/errors.go index 7421f326f..161aea258 100644 --- a/vendor/github.com/pkg/errors/errors.go +++ b/vendor/github.com/pkg/errors/errors.go @@ -82,7 +82,7 @@ // // if err, ok := err.(stackTracer); ok { // for _, f := range err.StackTrace() { -// fmt.Printf("%+s:%d", f) +// fmt.Printf("%+s:%d\n", f, f) // } // } // @@ -159,6 +159,9 @@ type withStack struct { func (w *withStack) Cause() error { return w.error } +// Unwrap provides compatibility for Go 1.13 error chains. +func (w *withStack) Unwrap() error { return w.error } + func (w *withStack) Format(s fmt.State, verb rune) { switch verb { case 'v': @@ -241,6 +244,9 @@ type withMessage struct { func (w *withMessage) Error() string { return w.msg + ": " + w.cause.Error() } func (w *withMessage) Cause() error { return w.cause } +// Unwrap provides compatibility for Go 1.13 error chains. +func (w *withMessage) Unwrap() error { return w.cause } + func (w *withMessage) Format(s fmt.State, verb rune) { switch verb { case 'v': diff --git a/vendor/github.com/pkg/errors/go113.go b/vendor/github.com/pkg/errors/go113.go new file mode 100644 index 000000000..be0d10d0c --- /dev/null +++ b/vendor/github.com/pkg/errors/go113.go @@ -0,0 +1,38 @@ +// +build go1.13 + +package errors + +import ( + stderrors "errors" +) + +// Is reports whether any error in err's chain matches target. +// +// The chain consists of err itself followed by the sequence of errors obtained by +// repeatedly calling Unwrap. +// +// An error is considered to match a target if it is equal to that target or if +// it implements a method Is(error) bool such that Is(target) returns true. +func Is(err, target error) bool { return stderrors.Is(err, target) } + +// As finds the first error in err's chain that matches target, and if so, sets +// target to that error value and returns true. +// +// The chain consists of err itself followed by the sequence of errors obtained by +// repeatedly calling Unwrap. +// +// An error matches target if the error's concrete value is assignable to the value +// pointed to by target, or if the error has a method As(interface{}) bool such that +// As(target) returns true. In the latter case, the As method is responsible for +// setting target. +// +// As will panic if target is not a non-nil pointer to either a type that implements +// error, or to any interface type. As returns false if err is nil. +func As(err error, target interface{}) bool { return stderrors.As(err, target) } + +// Unwrap returns the result of calling the Unwrap method on err, if err's +// type contains an Unwrap method returning error. +// Otherwise, Unwrap returns nil. +func Unwrap(err error) error { + return stderrors.Unwrap(err) +} diff --git a/vendor/github.com/pkg/errors/stack.go b/vendor/github.com/pkg/errors/stack.go index 2874a048c..779a8348f 100644 --- a/vendor/github.com/pkg/errors/stack.go +++ b/vendor/github.com/pkg/errors/stack.go @@ -5,10 +5,13 @@ import ( "io" "path" "runtime" + "strconv" "strings" ) // Frame represents a program counter inside a stack frame. +// For historical reasons if Frame is interpreted as a uintptr +// its value represents the program counter + 1. type Frame uintptr // pc returns the program counter for this frame; @@ -37,6 +40,15 @@ func (f Frame) line() int { return line } +// name returns the name of this function, if known. +func (f Frame) name() string { + fn := runtime.FuncForPC(f.pc()) + if fn == nil { + return "unknown" + } + return fn.Name() +} + // Format formats the frame according to the fmt.Formatter interface. // // %s source file @@ -54,22 +66,16 @@ func (f Frame) Format(s fmt.State, verb rune) { case 's': switch { case s.Flag('+'): - pc := f.pc() - fn := runtime.FuncForPC(pc) - if fn == nil { - io.WriteString(s, "unknown") - } else { - file, _ := fn.FileLine(pc) - fmt.Fprintf(s, "%s\n\t%s", fn.Name(), file) - } + io.WriteString(s, f.name()) + io.WriteString(s, "\n\t") + io.WriteString(s, f.file()) default: io.WriteString(s, path.Base(f.file())) } case 'd': - fmt.Fprintf(s, "%d", f.line()) + io.WriteString(s, strconv.Itoa(f.line())) case 'n': - name := runtime.FuncForPC(f.pc()).Name() - io.WriteString(s, funcname(name)) + io.WriteString(s, funcname(f.name())) case 'v': f.Format(s, 's') io.WriteString(s, ":") @@ -77,6 +83,16 @@ func (f Frame) Format(s fmt.State, verb rune) { } } +// MarshalText formats a stacktrace Frame as a text string. The output is the +// same as that of fmt.Sprintf("%+v", f), but without newlines or tabs. +func (f Frame) MarshalText() ([]byte, error) { + name := f.name() + if name == "unknown" { + return []byte(name), nil + } + return []byte(fmt.Sprintf("%s %s:%d", name, f.file(), f.line())), nil +} + // StackTrace is stack of Frames from innermost (newest) to outermost (oldest). type StackTrace []Frame @@ -94,18 +110,32 @@ func (st StackTrace) Format(s fmt.State, verb rune) { switch { case s.Flag('+'): for _, f := range st { - fmt.Fprintf(s, "\n%+v", f) + io.WriteString(s, "\n") + f.Format(s, verb) } case s.Flag('#'): fmt.Fprintf(s, "%#v", []Frame(st)) default: - fmt.Fprintf(s, "%v", []Frame(st)) + st.formatSlice(s, verb) } case 's': - fmt.Fprintf(s, "%s", []Frame(st)) + st.formatSlice(s, verb) } } +// formatSlice will format this StackTrace into the given buffer as a slice of +// Frame, only valid when called with '%s' or '%v'. +func (st StackTrace) formatSlice(s fmt.State, verb rune) { + io.WriteString(s, "[") + for i, f := range st { + if i > 0 { + io.WriteString(s, " ") + } + f.Format(s, verb) + } + io.WriteString(s, "]") +} + // stack represents a stack of program counters. type stack []uintptr diff --git a/vendor/golang.org/x/mod/LICENSE b/vendor/golang.org/x/mod/LICENSE new file mode 100644 index 000000000..6a66aea5e --- /dev/null +++ b/vendor/golang.org/x/mod/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/mod/PATENTS b/vendor/golang.org/x/mod/PATENTS new file mode 100644 index 000000000..733099041 --- /dev/null +++ b/vendor/golang.org/x/mod/PATENTS @@ -0,0 +1,22 @@ +Additional IP Rights Grant (Patents) + +"This implementation" means the copyrightable works distributed by +Google as part of the Go project. + +Google hereby grants to You a perpetual, worldwide, non-exclusive, +no-charge, royalty-free, irrevocable (except as stated in this section) +patent license to make, have made, use, offer to sell, sell, import, +transfer and otherwise run, modify and propagate the contents of this +implementation of Go, where such license applies only to those patent +claims, both currently owned or controlled by Google and acquired in +the future, licensable by Google that are necessarily infringed by this +implementation of Go. This grant does not include claims that would be +infringed only as a consequence of further modification of this +implementation. If you or your agent or exclusive licensee institute or +order or agree to the institution of patent litigation against any +entity (including a cross-claim or counterclaim in a lawsuit) alleging +that this implementation of Go or any code incorporated within this +implementation of Go constitutes direct or contributory patent +infringement, or inducement of patent infringement, then any patent +rights granted to you under this License for this implementation of Go +shall terminate as of the date such litigation is filed. diff --git a/vendor/golang.org/x/tools/internal/module/module.go b/vendor/golang.org/x/mod/module/module.go similarity index 58% rename from vendor/golang.org/x/tools/internal/module/module.go rename to vendor/golang.org/x/mod/module/module.go index 9a4edb9de..21f123957 100644 --- a/vendor/golang.org/x/tools/internal/module/module.go +++ b/vendor/golang.org/x/mod/module/module.go @@ -2,8 +2,86 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// Package module defines the module.Version type -// along with support code. +// Package module defines the module.Version type along with support code. +// +// The module.Version type is a simple Path, Version pair: +// +// type Version struct { +// Path string +// Version string +// } +// +// There are no restrictions imposed directly by use of this structure, +// but additional checking functions, most notably Check, verify that +// a particular path, version pair is valid. +// +// Escaped Paths +// +// Module paths appear as substrings of file system paths +// (in the download cache) and of web server URLs in the proxy protocol. +// In general we cannot rely on file systems to be case-sensitive, +// nor can we rely on web servers, since they read from file systems. +// That is, we cannot rely on the file system to keep rsc.io/QUOTE +// and rsc.io/quote separate. Windows and macOS don't. +// Instead, we must never require two different casings of a file path. +// Because we want the download cache to match the proxy protocol, +// and because we want the proxy protocol to be possible to serve +// from a tree of static files (which might be stored on a case-insensitive +// file system), the proxy protocol must never require two different casings +// of a URL path either. +// +// One possibility would be to make the escaped form be the lowercase +// hexadecimal encoding of the actual path bytes. This would avoid ever +// needing different casings of a file path, but it would be fairly illegible +// to most programmers when those paths appeared in the file system +// (including in file paths in compiler errors and stack traces) +// in web server logs, and so on. Instead, we want a safe escaped form that +// leaves most paths unaltered. +// +// The safe escaped form is to replace every uppercase letter +// with an exclamation mark followed by the letter's lowercase equivalent. +// +// For example, +// +// github.com/Azure/azure-sdk-for-go -> github.com/!azure/azure-sdk-for-go. +// github.com/GoogleCloudPlatform/cloudsql-proxy -> github.com/!google!cloud!platform/cloudsql-proxy +// github.com/Sirupsen/logrus -> github.com/!sirupsen/logrus. +// +// Import paths that avoid upper-case letters are left unchanged. +// Note that because import paths are ASCII-only and avoid various +// problematic punctuation (like : < and >), the escaped form is also ASCII-only +// and avoids the same problematic punctuation. +// +// Import paths have never allowed exclamation marks, so there is no +// need to define how to escape a literal !. +// +// Unicode Restrictions +// +// Today, paths are disallowed from using Unicode. +// +// Although paths are currently disallowed from using Unicode, +// we would like at some point to allow Unicode letters as well, to assume that +// file systems and URLs are Unicode-safe (storing UTF-8), and apply +// the !-for-uppercase convention for escaping them in the file system. +// But there are at least two subtle considerations. +// +// First, note that not all case-fold equivalent distinct runes +// form an upper/lower pair. +// For example, U+004B ('K'), U+006B ('k'), and U+212A ('K' for Kelvin) +// are three distinct runes that case-fold to each other. +// When we do add Unicode letters, we must not assume that upper/lower +// are the only case-equivalent pairs. +// Perhaps the Kelvin symbol would be disallowed entirely, for example. +// Or perhaps it would escape as "!!k", or perhaps as "(212A)". +// +// Second, it would be nice to allow Unicode marks as well as letters, +// but marks include combining marks, and then we must deal not +// only with case folding but also normalization: both U+00E9 ('é') +// and U+0065 U+0301 ('e' followed by combining acute accent) +// look the same on the page and are treated by some file systems +// as the same path. If we do allow Unicode marks in paths, there +// must be some kind of normalization to allow only one canonical +// encoding of any character used in an import path. package module // IMPORTANT NOTE @@ -24,22 +102,91 @@ import ( "unicode" "unicode/utf8" - "golang.org/x/tools/internal/semver" + "golang.org/x/mod/semver" + errors "golang.org/x/xerrors" ) -// A Version is defined by a module path and version pair. +// A Version (for clients, a module.Version) is defined by a module path and version pair. +// These are stored in their plain (unescaped) form. type Version struct { + // Path is a module path, like "golang.org/x/text" or "rsc.io/quote/v2". Path string // Version is usually a semantic version in canonical form. - // There are two exceptions to this general rule. + // There are three exceptions to this general rule. // First, the top-level target of a build has no specific version // and uses Version = "". // Second, during MVS calculations the version "none" is used // to represent the decision to take no version of a given module. + // Third, filesystem paths found in "replace" directives are + // represented by a path with an empty version. Version string `json:",omitempty"` } +// String returns the module version syntax Path@Version. +func (m Version) String() string { + return m.Path + "@" + m.Version +} + +// A ModuleError indicates an error specific to a module. +type ModuleError struct { + Path string + Version string + Err error +} + +// VersionError returns a ModuleError derived from a Version and error, +// or err itself if it is already such an error. +func VersionError(v Version, err error) error { + var mErr *ModuleError + if errors.As(err, &mErr) && mErr.Path == v.Path && mErr.Version == v.Version { + return err + } + return &ModuleError{ + Path: v.Path, + Version: v.Version, + Err: err, + } +} + +func (e *ModuleError) Error() string { + if v, ok := e.Err.(*InvalidVersionError); ok { + return fmt.Sprintf("%s@%s: invalid %s: %v", e.Path, v.Version, v.noun(), v.Err) + } + if e.Version != "" { + return fmt.Sprintf("%s@%s: %v", e.Path, e.Version, e.Err) + } + return fmt.Sprintf("module %s: %v", e.Path, e.Err) +} + +func (e *ModuleError) Unwrap() error { return e.Err } + +// An InvalidVersionError indicates an error specific to a version, with the +// module path unknown or specified externally. +// +// A ModuleError may wrap an InvalidVersionError, but an InvalidVersionError +// must not wrap a ModuleError. +type InvalidVersionError struct { + Version string + Pseudo bool + Err error +} + +// noun returns either "version" or "pseudo-version", depending on whether +// e.Version is a pseudo-version. +func (e *InvalidVersionError) noun() string { + if e.Pseudo { + return "pseudo-version" + } + return "version" +} + +func (e *InvalidVersionError) Error() string { + return fmt.Sprintf("%s %q invalid: %s", e.noun(), e.Version, e.Err) +} + +func (e *InvalidVersionError) Unwrap() error { return e.Err } + // Check checks that a given module path, version pair is valid. // In addition to the path being a valid module path // and the version being a valid semantic version, @@ -51,17 +198,14 @@ func Check(path, version string) error { return err } if !semver.IsValid(version) { - return fmt.Errorf("malformed semantic version %v", version) + return &ModuleError{ + Path: path, + Err: &InvalidVersionError{Version: version, Err: errors.New("not a semantic version")}, + } } _, pathMajor, _ := SplitPathVersion(path) - if !MatchPathMajor(version, pathMajor) { - if pathMajor == "" { - pathMajor = "v0 or v1" - } - if pathMajor[0] == '.' { // .v1 - pathMajor = pathMajor[1:] - } - return fmt.Errorf("mismatched module path %v and version %v (want %v)", path, version, pathMajor) + if err := CheckPathMajor(version, pathMajor); err != nil { + return &ModuleError{Path: path, Err: err} } return nil } @@ -79,7 +223,7 @@ func firstPathOK(r rune) bool { // Paths can be ASCII letters, ASCII digits, and limited ASCII punctuation: + - . _ and ~. // This matches what "go get" has historically recognized in import paths. // TODO(rsc): We would like to allow Unicode letters, but that requires additional -// care in the safe encoding (see note below). +// care in the safe encoding (see "escaped paths" above). func pathOK(r rune) bool { if r < utf8.RuneSelf { return r == '+' || r == '-' || r == '.' || r == '_' || r == '~' || @@ -94,7 +238,7 @@ func pathOK(r rune) bool { // For now we allow all Unicode letters but otherwise limit to pathOK plus a few more punctuation characters. // If we expand the set of allowed characters here, we have to // work harder at detecting potential case-folding and normalization collisions. -// See note about "safe encoding" below. +// See note about "escaped paths" above. func fileNameOK(r rune) bool { if r < utf8.RuneSelf { // Entire set of ASCII punctuation, from which we remove characters: @@ -120,6 +264,17 @@ func fileNameOK(r rune) bool { } // CheckPath checks that a module path is valid. +// A valid module path is a valid import path, as checked by CheckImportPath, +// with two additional constraints. +// First, the leading path element (up to the first slash, if any), +// by convention a domain name, must contain only lower-case ASCII letters, +// ASCII digits, dots (U+002E), and dashes (U+002D); +// it must contain at least one dot and cannot start with a dash. +// Second, for a final path element of the form /vN, where N looks numeric +// (ASCII digits and dots) must not begin with a leading zero, must not be /v1, +// and must not contain any dots. For paths beginning with "gopkg.in/", +// this second requirement is replaced by a requirement that the path +// follow the gopkg.in server's conventions. func CheckPath(path string) error { if err := checkPath(path, false); err != nil { return fmt.Errorf("malformed module path %q: %v", path, err) @@ -149,6 +304,20 @@ func CheckPath(path string) error { } // CheckImportPath checks that an import path is valid. +// +// A valid import path consists of one or more valid path elements +// separated by slashes (U+002F). (It must not begin with nor end in a slash.) +// +// A valid path element is a non-empty string made up of +// ASCII letters, ASCII digits, and limited ASCII punctuation: + - . _ and ~. +// It must not begin or end with a dot (U+002E), nor contain two dots in a row. +// +// The element prefix up to the first dot must not be a reserved file name +// on Windows, regardless of case (CON, com1, NuL, and so on). +// +// CheckImportPath may be less restrictive in the future, but see the +// top-level package documentation for additional information about +// subtleties of Unicode. func CheckImportPath(path string) error { if err := checkPath(path, false); err != nil { return fmt.Errorf("malformed import path %q: %v", path, err) @@ -169,8 +338,8 @@ func checkPath(path string, fileName bool) error { if path == "" { return fmt.Errorf("empty string") } - if strings.Contains(path, "..") { - return fmt.Errorf("double dot") + if path[0] == '-' { + return fmt.Errorf("leading dash") } if strings.Contains(path, "//") { return fmt.Errorf("double slash") @@ -226,13 +395,24 @@ func checkElem(elem string, fileName bool) error { } for _, bad := range badWindowsNames { if strings.EqualFold(bad, short) { - return fmt.Errorf("disallowed path element %q", elem) + return fmt.Errorf("%q disallowed as path element component on Windows", short) } } return nil } -// CheckFilePath checks whether a slash-separated file path is valid. +// CheckFilePath checks that a slash-separated file path is valid. +// The definition of a valid file path is the same as the definition +// of a valid import path except that the set of allowed characters is larger: +// all Unicode letters, ASCII digits, the ASCII space character (U+0020), +// and the ASCII punctuation characters +// “!#$%&()+,-.=@[]^_{}~”. +// (The excluded punctuation characters, " * < > ? ` ' | / \ and :, +// have special meanings in certain shells or operating systems.) +// +// CheckFilePath may be less restrictive in the future, but see the +// top-level package documentation for additional information about +// subtleties of Unicode. func CheckFilePath(path string) error { if err := checkPath(path, true); err != nil { return fmt.Errorf("malformed file path %q: %v", path, err) @@ -271,6 +451,9 @@ var badWindowsNames = []string{ // and version is either empty or "/vN" for N >= 2. // As a special case, gopkg.in paths are recognized directly; // they require ".vN" instead of "/vN", and for all N, not just N >= 2. +// SplitPathVersion returns with ok = false when presented with +// a path whose last path element does not satisfy the constraints +// applied by CheckPath, such as "example.com/pkg/v1" or "example.com/pkg/v1.2". func SplitPathVersion(path string) (prefix, pathMajor string, ok bool) { if strings.HasPrefix(path, "gopkg.in/") { return splitGopkgIn(path) @@ -319,20 +502,65 @@ func splitGopkgIn(path string) (prefix, pathMajor string, ok bool) { // MatchPathMajor reports whether the semantic version v // matches the path major version pathMajor. +// +// MatchPathMajor returns true if and only if CheckPathMajor returns nil. func MatchPathMajor(v, pathMajor string) bool { + return CheckPathMajor(v, pathMajor) == nil +} + +// CheckPathMajor returns a non-nil error if the semantic version v +// does not match the path major version pathMajor. +func CheckPathMajor(v, pathMajor string) error { + // TODO(jayconrod): return errors or panic for invalid inputs. This function + // (and others) was covered by integration tests for cmd/go, and surrounding + // code protected against invalid inputs like non-canonical versions. if strings.HasPrefix(pathMajor, ".v") && strings.HasSuffix(pathMajor, "-unstable") { pathMajor = strings.TrimSuffix(pathMajor, "-unstable") } if strings.HasPrefix(v, "v0.0.0-") && pathMajor == ".v1" { // Allow old bug in pseudo-versions that generated v0.0.0- pseudoversion for gopkg .v1. // For example, gopkg.in/yaml.v2@v2.2.1's go.mod requires gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405. - return true + return nil } m := semver.Major(v) if pathMajor == "" { - return m == "v0" || m == "v1" || semver.Build(v) == "+incompatible" + if m == "v0" || m == "v1" || semver.Build(v) == "+incompatible" { + return nil + } + pathMajor = "v0 or v1" + } else if pathMajor[0] == '/' || pathMajor[0] == '.' { + if m == pathMajor[1:] { + return nil + } + pathMajor = pathMajor[1:] } - return (pathMajor[0] == '/' || pathMajor[0] == '.') && m == pathMajor[1:] + return &InvalidVersionError{ + Version: v, + Err: fmt.Errorf("should be %s, not %s", pathMajor, semver.Major(v)), + } +} + +// PathMajorPrefix returns the major-version tag prefix implied by pathMajor. +// An empty PathMajorPrefix allows either v0 or v1. +// +// Note that MatchPathMajor may accept some versions that do not actually begin +// with this prefix: namely, it accepts a 'v0.0.0-' prefix for a '.v1' +// pathMajor, even though that pathMajor implies 'v1' tagging. +func PathMajorPrefix(pathMajor string) string { + if pathMajor == "" { + return "" + } + if pathMajor[0] != '/' && pathMajor[0] != '.' { + panic("pathMajor suffix " + pathMajor + " passed to PathMajorPrefix lacks separator") + } + if strings.HasPrefix(pathMajor, ".v") && strings.HasSuffix(pathMajor, "-unstable") { + pathMajor = strings.TrimSuffix(pathMajor, "-unstable") + } + m := pathMajor[1:] + if m != semver.Major(m) { + panic("pathMajor suffix " + pathMajor + "passed to PathMajorPrefix is not a valid major version") + } + return m } // CanonicalVersion returns the canonical form of the version string v. @@ -345,7 +573,10 @@ func CanonicalVersion(v string) string { return cv } -// Sort sorts the list by Path, breaking ties by comparing Versions. +// Sort sorts the list by Path, breaking ties by comparing Version fields. +// The Version fields are interpreted as semantic versions (using semver.Compare) +// optionally followed by a tie-breaking suffix introduced by a slash character, +// like in "v0.0.1/go.mod". func Sort(list []Version) { sort.Slice(list, func(i, j int) bool { mi := list[i] @@ -372,93 +603,36 @@ func Sort(list []Version) { }) } -// Safe encodings -// -// Module paths appear as substrings of file system paths -// (in the download cache) and of web server URLs in the proxy protocol. -// In general we cannot rely on file systems to be case-sensitive, -// nor can we rely on web servers, since they read from file systems. -// That is, we cannot rely on the file system to keep rsc.io/QUOTE -// and rsc.io/quote separate. Windows and macOS don't. -// Instead, we must never require two different casings of a file path. -// Because we want the download cache to match the proxy protocol, -// and because we want the proxy protocol to be possible to serve -// from a tree of static files (which might be stored on a case-insensitive -// file system), the proxy protocol must never require two different casings -// of a URL path either. -// -// One possibility would be to make the safe encoding be the lowercase -// hexadecimal encoding of the actual path bytes. This would avoid ever -// needing different casings of a file path, but it would be fairly illegible -// to most programmers when those paths appeared in the file system -// (including in file paths in compiler errors and stack traces) -// in web server logs, and so on. Instead, we want a safe encoding that -// leaves most paths unaltered. -// -// The safe encoding is this: -// replace every uppercase letter with an exclamation mark -// followed by the letter's lowercase equivalent. -// -// For example, -// github.com/Azure/azure-sdk-for-go -> github.com/!azure/azure-sdk-for-go. -// github.com/GoogleCloudPlatform/cloudsql-proxy -> github.com/!google!cloud!platform/cloudsql-proxy -// github.com/Sirupsen/logrus -> github.com/!sirupsen/logrus. -// -// Import paths that avoid upper-case letters are left unchanged. -// Note that because import paths are ASCII-only and avoid various -// problematic punctuation (like : < and >), the safe encoding is also ASCII-only -// and avoids the same problematic punctuation. -// -// Import paths have never allowed exclamation marks, so there is no -// need to define how to encode a literal !. -// -// Although paths are disallowed from using Unicode (see pathOK above), -// the eventual plan is to allow Unicode letters as well, to assume that -// file systems and URLs are Unicode-safe (storing UTF-8), and apply -// the !-for-uppercase convention. Note however that not all runes that -// are different but case-fold equivalent are an upper/lower pair. -// For example, U+004B ('K'), U+006B ('k'), and U+212A ('K' for Kelvin) -// are considered to case-fold to each other. When we do add Unicode -// letters, we must not assume that upper/lower are the only case-equivalent pairs. -// Perhaps the Kelvin symbol would be disallowed entirely, for example. -// Or perhaps it would encode as "!!k", or perhaps as "(212A)". -// -// Also, it would be nice to allow Unicode marks as well as letters, -// but marks include combining marks, and then we must deal not -// only with case folding but also normalization: both U+00E9 ('é') -// and U+0065 U+0301 ('e' followed by combining acute accent) -// look the same on the page and are treated by some file systems -// as the same path. If we do allow Unicode marks in paths, there -// must be some kind of normalization to allow only one canonical -// encoding of any character used in an import path. - -// EncodePath returns the safe encoding of the given module path. +// EscapePath returns the escaped form of the given module path. // It fails if the module path is invalid. -func EncodePath(path string) (encoding string, err error) { +func EscapePath(path string) (escaped string, err error) { if err := CheckPath(path); err != nil { return "", err } - return encodeString(path) + return escapeString(path) } -// EncodeVersion returns the safe encoding of the given module version. +// EscapeVersion returns the escaped form of the given module version. // Versions are allowed to be in non-semver form but must be valid file names // and not contain exclamation marks. -func EncodeVersion(v string) (encoding string, err error) { +func EscapeVersion(v string) (escaped string, err error) { if err := checkElem(v, true); err != nil || strings.Contains(v, "!") { - return "", fmt.Errorf("disallowed version string %q", v) + return "", &InvalidVersionError{ + Version: v, + Err: fmt.Errorf("disallowed version string"), + } } - return encodeString(v) + return escapeString(v) } -func encodeString(s string) (encoding string, err error) { +func escapeString(s string) (escaped string, err error) { haveUpper := false for _, r := range s { if r == '!' || r >= utf8.RuneSelf { // This should be disallowed by CheckPath, but diagnose anyway. - // The correctness of the encoding loop below depends on it. - return "", fmt.Errorf("internal error: inconsistency in EncodePath") + // The correctness of the escaping loop below depends on it. + return "", fmt.Errorf("internal error: inconsistency in EscapePath") } if 'A' <= r && r <= 'Z' { haveUpper = true @@ -480,39 +654,39 @@ func encodeString(s string) (encoding string, err error) { return string(buf), nil } -// DecodePath returns the module path of the given safe encoding. -// It fails if the encoding is invalid or encodes an invalid path. -func DecodePath(encoding string) (path string, err error) { - path, ok := decodeString(encoding) +// UnescapePath returns the module path for the given escaped path. +// It fails if the escaped path is invalid or describes an invalid path. +func UnescapePath(escaped string) (path string, err error) { + path, ok := unescapeString(escaped) if !ok { - return "", fmt.Errorf("invalid module path encoding %q", encoding) + return "", fmt.Errorf("invalid escaped module path %q", escaped) } if err := CheckPath(path); err != nil { - return "", fmt.Errorf("invalid module path encoding %q: %v", encoding, err) + return "", fmt.Errorf("invalid escaped module path %q: %v", escaped, err) } return path, nil } -// DecodeVersion returns the version string for the given safe encoding. -// It fails if the encoding is invalid or encodes an invalid version. +// UnescapeVersion returns the version string for the given escaped version. +// It fails if the escaped form is invalid or describes an invalid version. // Versions are allowed to be in non-semver form but must be valid file names // and not contain exclamation marks. -func DecodeVersion(encoding string) (v string, err error) { - v, ok := decodeString(encoding) +func UnescapeVersion(escaped string) (v string, err error) { + v, ok := unescapeString(escaped) if !ok { - return "", fmt.Errorf("invalid version encoding %q", encoding) + return "", fmt.Errorf("invalid escaped version %q", escaped) } if err := checkElem(v, true); err != nil { - return "", fmt.Errorf("disallowed version string %q", v) + return "", fmt.Errorf("invalid escaped version %q: %v", v, err) } return v, nil } -func decodeString(encoding string) (string, bool) { +func unescapeString(escaped string) (string, bool) { var buf []byte bang := false - for _, r := range encoding { + for _, r := range escaped { if r >= utf8.RuneSelf { return "", false } diff --git a/vendor/golang.org/x/tools/internal/semver/semver.go b/vendor/golang.org/x/mod/semver/semver.go similarity index 99% rename from vendor/golang.org/x/tools/internal/semver/semver.go rename to vendor/golang.org/x/mod/semver/semver.go index 4af7118e5..2988e3cf9 100644 --- a/vendor/golang.org/x/tools/internal/semver/semver.go +++ b/vendor/golang.org/x/mod/semver/semver.go @@ -107,7 +107,7 @@ func Build(v string) string { } // Compare returns an integer comparing two versions according to -// according to semantic version precedence. +// semantic version precedence. // The result will be 0 if v == w, -1 if v < w, or +1 if v > w. // // An invalid semantic version string is considered less than a valid one. @@ -263,7 +263,7 @@ func parseBuild(v string) (t, rest string, ok bool) { i := 1 start := 1 for i < len(v) { - if !isIdentChar(v[i]) { + if !isIdentChar(v[i]) && v[i] != '.' { return } if v[i] == '.' { diff --git a/vendor/golang.org/x/tools/go/ast/astutil/imports.go b/vendor/golang.org/x/tools/go/ast/astutil/imports.go index 3e4b19536..2087ceec9 100644 --- a/vendor/golang.org/x/tools/go/ast/astutil/imports.go +++ b/vendor/golang.org/x/tools/go/ast/astutil/imports.go @@ -275,9 +275,10 @@ func DeleteNamedImport(fset *token.FileSet, f *ast.File, name, path string) (del // We deleted an entry but now there may be // a blank line-sized hole where the import was. - if line-lastLine > 1 { + if line-lastLine > 1 || !gen.Rparen.IsValid() { // There was a blank line immediately preceding the deleted import, - // so there's no need to close the hole. + // so there's no need to close the hole. The right parenthesis is + // invalid after AddImport to an import statement without parenthesis. // Do nothing. } else if line != fset.File(gen.Rparen).LineCount() { // There was no blank line. Close the hole. diff --git a/vendor/golang.org/x/tools/go/internal/cgo/cgo.go b/vendor/golang.org/x/tools/go/internal/cgo/cgo.go index 0f652ea6f..5db8b3096 100644 --- a/vendor/golang.org/x/tools/go/internal/cgo/cgo.go +++ b/vendor/golang.org/x/tools/go/internal/cgo/cgo.go @@ -2,9 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -package cgo - -// This file handles cgo preprocessing of files containing `import "C"`. +// Package cgo handles cgo preprocessing of files containing `import "C"`. // // DESIGN // @@ -51,6 +49,8 @@ package cgo // its handling of function calls, analogous to the treatment of map // lookups in which y=m[k] and y,ok=m[k] are both legal. +package cgo + import ( "fmt" "go/ast" diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go b/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go index 9cf186605..8dcd8bbb7 100644 --- a/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go @@ -344,7 +344,7 @@ func (p *parser) expectKeyword(keyword string) { // PackageId = string_lit . // -func (p *parser) parsePackageId() string { +func (p *parser) parsePackageID() string { id, err := strconv.Unquote(p.expect(scanner.String)) if err != nil { p.error(err) @@ -384,7 +384,7 @@ func (p *parser) parseDotIdent() string { // func (p *parser) parseQualifiedName() (id, name string) { p.expect('@') - id = p.parsePackageId() + id = p.parsePackageID() p.expect('.') // Per rev f280b8a485fd (10/2/2013), qualified names may be used for anonymous fields. if p.tok == '?' { @@ -696,7 +696,7 @@ func (p *parser) parseInterfaceType(parent *types.Package) types.Type { // Complete requires the type's embedded interfaces to be fully defined, // but we do not define any - return types.NewInterface(methods, nil).Complete() + return newInterface(methods, nil).Complete() } // ChanType = ( "chan" [ "<-" ] | "<-" "chan" ) Type . @@ -785,7 +785,7 @@ func (p *parser) parseType(parent *types.Package) types.Type { func (p *parser) parseImportDecl() { p.expectKeyword("import") name := p.parsePackageName() - p.getPkg(p.parsePackageId(), name) + p.getPkg(p.parsePackageID(), name) } // int_lit = [ "+" | "-" ] { "0" ... "9" } . diff --git a/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go b/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go index db0c9a7ea..5ee692d38 100644 --- a/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go +++ b/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go @@ -11,11 +11,10 @@ import ( "encoding/json" "fmt" "go/types" - "log" - "os" "os/exec" "strings" - "time" + + "golang.org/x/tools/internal/gocommand" ) var debug = false @@ -78,97 +77,42 @@ func GetSizes(ctx context.Context, buildFlags, env []string, dir string, usesExp } func GetSizesGolist(ctx context.Context, buildFlags, env []string, dir string, usesExportData bool) (types.Sizes, error) { - args := []string{"list", "-f", "{{context.GOARCH}} {{context.Compiler}}"} - args = append(args, buildFlags...) - args = append(args, "--", "unsafe") - stdout, stderr, err := invokeGo(ctx, env, dir, usesExportData, args...) + inv := gocommand.Invocation{ + Verb: "list", + Args: []string{"-f", "{{context.GOARCH}} {{context.Compiler}}", "--", "unsafe"}, + Env: env, + BuildFlags: buildFlags, + WorkingDir: dir, + } + stdout, stderr, friendlyErr, rawErr := inv.RunRaw(ctx) var goarch, compiler string - if err != nil { - if strings.Contains(err.Error(), "cannot find main module") { + if rawErr != nil { + if strings.Contains(rawErr.Error(), "cannot find main module") { // User's running outside of a module. All bets are off. Get GOARCH and guess compiler is gc. // TODO(matloob): Is this a problem in practice? - envout, _, enverr := invokeGo(ctx, env, dir, usesExportData, "env", "GOARCH") + inv := gocommand.Invocation{ + Verb: "env", + Args: []string{"GOARCH"}, + Env: env, + WorkingDir: dir, + } + envout, enverr := inv.Run(ctx) if enverr != nil { - return nil, err + return nil, enverr } goarch = strings.TrimSpace(envout.String()) compiler = "gc" } else { - return nil, err + return nil, friendlyErr } } else { fields := strings.Fields(stdout.String()) if len(fields) < 2 { - return nil, fmt.Errorf("could not parse GOARCH and Go compiler in format \" \" from stdout of go command:\n%s\ndir: %s\nstdout: <<%s>>\nstderr: <<%s>>", - cmdDebugStr(env, args...), dir, stdout.String(), stderr.String()) + return nil, fmt.Errorf("could not parse GOARCH and Go compiler in format \" \":\nstdout: <<%s>>\nstderr: <<%s>>", + stdout.String(), stderr.String()) } goarch = fields[0] compiler = fields[1] } return types.SizesFor(compiler, goarch), nil } - -// invokeGo returns the stdout and stderr of a go command invocation. -func invokeGo(ctx context.Context, env []string, dir string, usesExportData bool, args ...string) (*bytes.Buffer, *bytes.Buffer, error) { - if debug { - defer func(start time.Time) { log.Printf("%s for %v", time.Since(start), cmdDebugStr(env, args...)) }(time.Now()) - } - stdout := new(bytes.Buffer) - stderr := new(bytes.Buffer) - cmd := exec.CommandContext(ctx, "go", args...) - // On darwin the cwd gets resolved to the real path, which breaks anything that - // expects the working directory to keep the original path, including the - // go command when dealing with modules. - // The Go stdlib has a special feature where if the cwd and the PWD are the - // same node then it trusts the PWD, so by setting it in the env for the child - // process we fix up all the paths returned by the go command. - cmd.Env = append(append([]string{}, env...), "PWD="+dir) - cmd.Dir = dir - cmd.Stdout = stdout - cmd.Stderr = stderr - if err := cmd.Run(); err != nil { - exitErr, ok := err.(*exec.ExitError) - if !ok { - // Catastrophic error: - // - executable not found - // - context cancellation - return nil, nil, fmt.Errorf("couldn't exec 'go %v': %s %T", args, err, err) - } - - // Export mode entails a build. - // If that build fails, errors appear on stderr - // (despite the -e flag) and the Export field is blank. - // Do not fail in that case. - if !usesExportData { - return nil, nil, fmt.Errorf("go %v: %s: %s", args, exitErr, stderr) - } - } - - // As of writing, go list -export prints some non-fatal compilation - // errors to stderr, even with -e set. We would prefer that it put - // them in the Package.Error JSON (see https://golang.org/issue/26319). - // In the meantime, there's nowhere good to put them, but they can - // be useful for debugging. Print them if $GOPACKAGESPRINTGOLISTERRORS - // is set. - if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTGOLISTERRORS") != "" { - fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(env, args...), stderr) - } - - // debugging - if false { - fmt.Fprintf(os.Stderr, "%s stdout: <<%s>>\n", cmdDebugStr(env, args...), stdout) - } - - return stdout, stderr, nil -} - -func cmdDebugStr(envlist []string, args ...string) string { - env := make(map[string]string) - for _, kv := range envlist { - split := strings.Split(kv, "=") - k, v := split[0], split[1] - env[k] = v - } - - return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v PWD=%v go %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["PWD"], args) -} diff --git a/vendor/golang.org/x/tools/go/packages/golist.go b/vendor/golang.org/x/tools/go/packages/golist.go index 9c895b389..b4a13ef45 100644 --- a/vendor/golang.org/x/tools/go/packages/golist.go +++ b/vendor/golang.org/x/tools/go/packages/golist.go @@ -6,26 +6,25 @@ package packages import ( "bytes" + "context" "encoding/json" "fmt" "go/types" - "io/ioutil" "log" "os" "os/exec" "path" "path/filepath" "reflect" - "regexp" + "sort" "strconv" "strings" "sync" - "time" "unicode" "golang.org/x/tools/go/internal/packagesdriver" - "golang.org/x/tools/internal/gopathwalk" - "golang.org/x/tools/internal/semver" + "golang.org/x/tools/internal/gocommand" + "golang.org/x/tools/internal/packagesinternal" ) // debug controls verbose logging. @@ -44,16 +43,21 @@ type responseDeduper struct { dr *driverResponse } -// init fills in r with a driverResponse. -func (r *responseDeduper) init(dr *driverResponse) { - r.dr = dr - r.seenRoots = map[string]bool{} - r.seenPackages = map[string]*Package{} +func newDeduper() *responseDeduper { + return &responseDeduper{ + dr: &driverResponse{}, + seenRoots: map[string]bool{}, + seenPackages: map[string]*Package{}, + } +} + +// addAll fills in r with a driverResponse. +func (r *responseDeduper) addAll(dr *driverResponse) { for _, pkg := range dr.Packages { - r.seenPackages[pkg.ID] = pkg + r.addPackage(pkg) } for _, root := range dr.Roots { - r.seenRoots[root] = true + r.addRoot(root) } } @@ -73,25 +77,47 @@ func (r *responseDeduper) addRoot(id string) { r.dr.Roots = append(r.dr.Roots, id) } -// goInfo contains global information from the go tool. -type goInfo struct { - rootDirs map[string]string - env goEnv +type golistState struct { + cfg *Config + ctx context.Context + + envOnce sync.Once + goEnvError error + goEnv map[string]string + + rootsOnce sync.Once + rootDirsError error + rootDirs map[string]string + + // vendorDirs caches the (non)existence of vendor directories. + vendorDirs map[string]bool } -type goEnv struct { - modulesOn bool +// getEnv returns Go environment variables. Only specific variables are +// populated -- computing all of them is slow. +func (state *golistState) getEnv() (map[string]string, error) { + state.envOnce.Do(func() { + var b *bytes.Buffer + b, state.goEnvError = state.invokeGo("env", "-json", "GOMOD", "GOPATH") + if state.goEnvError != nil { + return + } + + state.goEnv = make(map[string]string) + decoder := json.NewDecoder(b) + if state.goEnvError = decoder.Decode(&state.goEnv); state.goEnvError != nil { + return + } + }) + return state.goEnv, state.goEnvError } -func determineEnv(cfg *Config) goEnv { - buf, err := invokeGo(cfg, "env", "GOMOD") +// mustGetEnv is a convenience function that can be used if getEnv has already succeeded. +func (state *golistState) mustGetEnv() map[string]string { + env, err := state.getEnv() if err != nil { - return goEnv{} + panic(fmt.Sprintf("mustGetEnv: %v", err)) } - gomod := bytes.TrimSpace(buf.Bytes()) - - env := goEnv{} - env.modulesOn = len(gomod) > 0 return env } @@ -99,47 +125,38 @@ func determineEnv(cfg *Config) goEnv { // the build system package structure. // See driver for more details. func goListDriver(cfg *Config, patterns ...string) (*driverResponse, error) { - var sizes types.Sizes + // Make sure that any asynchronous go commands are killed when we return. + parentCtx := cfg.Context + if parentCtx == nil { + parentCtx = context.Background() + } + ctx, cancel := context.WithCancel(parentCtx) + defer cancel() + + response := newDeduper() + + // Fill in response.Sizes asynchronously if necessary. var sizeserr error var sizeswg sync.WaitGroup if cfg.Mode&NeedTypesSizes != 0 || cfg.Mode&NeedTypes != 0 { sizeswg.Add(1) go func() { - sizes, sizeserr = getSizes(cfg) + var sizes types.Sizes + sizes, sizeserr = packagesdriver.GetSizesGolist(ctx, cfg.BuildFlags, cfg.Env, cfg.Dir, usesExportData(cfg)) + // types.SizesFor always returns nil or a *types.StdSizes. + response.dr.Sizes, _ = sizes.(*types.StdSizes) sizeswg.Done() }() } - defer sizeswg.Wait() - // start fetching rootDirs - var info goInfo - var rootDirsReady, envReady = make(chan struct{}), make(chan struct{}) - go func() { - info.rootDirs = determineRootDirs(cfg) - close(rootDirsReady) - }() - go func() { - info.env = determineEnv(cfg) - close(envReady) - }() - getGoInfo := func() *goInfo { - <-rootDirsReady - <-envReady - return &info - } - - // Ensure that we don't leak goroutines: Load is synchronous, so callers will - // not expect it to access the fields of cfg after the call returns. - defer getGoInfo() - - // always pass getGoInfo to golistDriver - golistDriver := func(cfg *Config, patterns ...string) (*driverResponse, error) { - return golistDriver(cfg, getGoInfo, patterns...) + state := &golistState{ + cfg: cfg, + ctx: ctx, + vendorDirs: map[string]bool{}, } // Determine files requested in contains patterns var containFiles []string - var packagesNamed []string restPatterns := make([]string, 0, len(patterns)) // Extract file= and other [querytype]= patterns. Report an error if querytype // doesn't exist. @@ -155,8 +172,6 @@ extractQueries: containFiles = append(containFiles, value) case "pattern": restPatterns = append(restPatterns, value) - case "iamashamedtousethedisabledqueryname": - packagesNamed = append(packagesNamed, value) case "": // not a reserved query restPatterns = append(restPatterns, pattern) default: @@ -172,52 +187,34 @@ extractQueries: } } - response := &responseDeduper{} - var err error - // See if we have any patterns to pass through to go list. Zero initial // patterns also requires a go list call, since it's the equivalent of // ".". if len(restPatterns) > 0 || len(patterns) == 0 { - dr, err := golistDriver(cfg, restPatterns...) + dr, err := state.createDriverResponse(restPatterns...) if err != nil { return nil, err } - response.init(dr) - } else { - response.init(&driverResponse{}) + response.addAll(dr) } - sizeswg.Wait() - if sizeserr != nil { - return nil, sizeserr - } - // types.SizesFor always returns nil or a *types.StdSizes - response.dr.Sizes, _ = sizes.(*types.StdSizes) - - var containsCandidates []string - if len(containFiles) != 0 { - if err := runContainsQueries(cfg, golistDriver, response, containFiles, getGoInfo); err != nil { + if err := state.runContainsQueries(response, containFiles); err != nil { return nil, err } } - if len(packagesNamed) != 0 { - if err := runNamedQueries(cfg, golistDriver, response, packagesNamed); err != nil { - return nil, err - } - } - - modifiedPkgs, needPkgs, err := processGolistOverlay(cfg, response, getGoInfo) + modifiedPkgs, needPkgs, err := state.processGolistOverlay(response) if err != nil { return nil, err } + + var containsCandidates []string if len(containFiles) > 0 { containsCandidates = append(containsCandidates, modifiedPkgs...) containsCandidates = append(containsCandidates, needPkgs...) } - if err := addNeededOverlayPackages(cfg, golistDriver, response, needPkgs, getGoInfo); err != nil { + if err := state.addNeededOverlayPackages(response, needPkgs); err != nil { return nil, err } // Check candidate packages for containFiles. @@ -246,28 +243,32 @@ extractQueries: } } + sizeswg.Wait() + if sizeserr != nil { + return nil, sizeserr + } return response.dr, nil } -func addNeededOverlayPackages(cfg *Config, driver driver, response *responseDeduper, pkgs []string, getGoInfo func() *goInfo) error { +func (state *golistState) addNeededOverlayPackages(response *responseDeduper, pkgs []string) error { if len(pkgs) == 0 { return nil } - dr, err := driver(cfg, pkgs...) + dr, err := state.createDriverResponse(pkgs...) if err != nil { return err } for _, pkg := range dr.Packages { response.addPackage(pkg) } - _, needPkgs, err := processGolistOverlay(cfg, response, getGoInfo) + _, needPkgs, err := state.processGolistOverlay(response) if err != nil { return err } - return addNeededOverlayPackages(cfg, driver, response, needPkgs, getGoInfo) + return state.addNeededOverlayPackages(response, needPkgs) } -func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, queries []string, goInfo func() *goInfo) error { +func (state *golistState) runContainsQueries(response *responseDeduper, queries []string) error { for _, query := range queries { // TODO(matloob): Do only one query per directory. fdir := filepath.Dir(query) @@ -277,44 +278,17 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q if err != nil { return fmt.Errorf("could not determine absolute path of file= query path %q: %v", query, err) } - dirResponse, err := driver(cfg, pattern) - if err != nil || (len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].Errors) == 1) { - // There was an error loading the package. Try to load the file as an ad-hoc package. - // Usually the error will appear in a returned package, but may not if we're in modules mode - // and the ad-hoc is located outside a module. + dirResponse, err := state.createDriverResponse(pattern) + + // If there was an error loading the package, or the package is returned + // with errors, try to load the file as an ad-hoc package. + // Usually the error will appear in a returned package, but may not if we're + // in module mode and the ad-hoc is located outside a module. + if err != nil || len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].GoFiles) == 0 && + len(dirResponse.Packages[0].Errors) == 1 { var queryErr error - dirResponse, queryErr = driver(cfg, query) - if queryErr != nil { - // Return the original error if the attempt to fall back failed. - return err - } - // If we get nothing back from `go list`, try to make this file into its own ad-hoc package. - if len(dirResponse.Packages) == 0 && queryErr == nil { - dirResponse.Packages = append(dirResponse.Packages, &Package{ - ID: "command-line-arguments", - PkgPath: query, - GoFiles: []string{query}, - CompiledGoFiles: []string{query}, - Imports: make(map[string]*Package), - }) - dirResponse.Roots = append(dirResponse.Roots, "command-line-arguments") - } - // Special case to handle issue #33482: - // If this is a file= query for ad-hoc packages where the file only exists on an overlay, - // and exists outside of a module, add the file in for the package. - if len(dirResponse.Packages) == 1 && (dirResponse.Packages[0].ID == "command-line-arguments" || - filepath.ToSlash(dirResponse.Packages[0].PkgPath) == filepath.ToSlash(query)) { - if len(dirResponse.Packages[0].GoFiles) == 0 { - filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath - // TODO(matloob): check if the file is outside of a root dir? - for path := range cfg.Overlay { - if path == filename { - dirResponse.Packages[0].Errors = nil - dirResponse.Packages[0].GoFiles = []string{path} - dirResponse.Packages[0].CompiledGoFiles = []string{path} - } - } - } + if dirResponse, queryErr = state.adhocPackage(pattern, query); queryErr != nil { + return err // return the original error } } isRoot := make(map[string]bool, len(dirResponse.Roots)) @@ -342,276 +316,47 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q return nil } -// modCacheRegexp splits a path in a module cache into module, module version, and package. -var modCacheRegexp = regexp.MustCompile(`(.*)@([^/\\]*)(.*)`) - -func runNamedQueries(cfg *Config, driver driver, response *responseDeduper, queries []string) error { - // calling `go env` isn't free; bail out if there's nothing to do. - if len(queries) == 0 { - return nil - } - // Determine which directories are relevant to scan. - roots, modRoot, err := roots(cfg) +// adhocPackage attempts to load or construct an ad-hoc package for a given +// query, if the original call to the driver produced inadequate results. +func (state *golistState) adhocPackage(pattern, query string) (*driverResponse, error) { + response, err := state.createDriverResponse(query) if err != nil { - return err + return nil, err } - - // Scan the selected directories. Simple matches, from GOPATH/GOROOT - // or the local module, can simply be "go list"ed. Matches from the - // module cache need special treatment. - var matchesMu sync.Mutex - var simpleMatches, modCacheMatches []string - add := func(root gopathwalk.Root, dir string) { - // Walk calls this concurrently; protect the result slices. - matchesMu.Lock() - defer matchesMu.Unlock() - - path := dir - if dir != root.Path { - path = dir[len(root.Path)+1:] - } - if pathMatchesQueries(path, queries) { - switch root.Type { - case gopathwalk.RootModuleCache: - modCacheMatches = append(modCacheMatches, path) - case gopathwalk.RootCurrentModule: - // We'd need to read go.mod to find the full - // import path. Relative's easier. - rel, err := filepath.Rel(cfg.Dir, dir) - if err != nil { - // This ought to be impossible, since - // we found dir in the current module. - panic(err) - } - simpleMatches = append(simpleMatches, "./"+rel) - case gopathwalk.RootGOPATH, gopathwalk.RootGOROOT: - simpleMatches = append(simpleMatches, path) - } - } - } - - startWalk := time.Now() - gopathwalk.Walk(roots, add, gopathwalk.Options{ModulesEnabled: modRoot != "", Debug: debug}) - cfg.Logf("%v for walk", time.Since(startWalk)) - - // Weird special case: the top-level package in a module will be in - // whatever directory the user checked the repository out into. It's - // more reasonable for that to not match the package name. So, if there - // are any Go files in the mod root, query it just to be safe. - if modRoot != "" { - rel, err := filepath.Rel(cfg.Dir, modRoot) - if err != nil { - panic(err) // See above. - } - - files, err := ioutil.ReadDir(modRoot) - if err != nil { - panic(err) // See above. - } - - for _, f := range files { - if strings.HasSuffix(f.Name(), ".go") { - simpleMatches = append(simpleMatches, rel) - break - } - } - } - - addResponse := func(r *driverResponse) { - for _, pkg := range r.Packages { - response.addPackage(pkg) - for _, name := range queries { - if pkg.Name == name { - response.addRoot(pkg.ID) - break - } - } - } - } - - if len(simpleMatches) != 0 { - resp, err := driver(cfg, simpleMatches...) - if err != nil { - return err - } - addResponse(resp) - } - - // Module cache matches are tricky. We want to avoid downloading new - // versions of things, so we need to use the ones present in the cache. - // go list doesn't accept version specifiers, so we have to write out a - // temporary module, and do the list in that module. - if len(modCacheMatches) != 0 { - // Collect all the matches, deduplicating by major version - // and preferring the newest. - type modInfo struct { - mod string - major string - } - mods := make(map[modInfo]string) - var imports []string - for _, modPath := range modCacheMatches { - matches := modCacheRegexp.FindStringSubmatch(modPath) - mod, ver := filepath.ToSlash(matches[1]), matches[2] - importPath := filepath.ToSlash(filepath.Join(matches[1], matches[3])) - - major := semver.Major(ver) - if prevVer, ok := mods[modInfo{mod, major}]; !ok || semver.Compare(ver, prevVer) > 0 { - mods[modInfo{mod, major}] = ver - } - - imports = append(imports, importPath) - } - - // Build the temporary module. - var gomod bytes.Buffer - gomod.WriteString("module modquery\nrequire (\n") - for mod, version := range mods { - gomod.WriteString("\t" + mod.mod + " " + version + "\n") - } - gomod.WriteString(")\n") - - tmpCfg := *cfg - - // We're only trying to look at stuff in the module cache, so - // disable the network. This should speed things up, and has - // prevented errors in at least one case, #28518. - tmpCfg.Env = append([]string{"GOPROXY=off"}, cfg.Env...) - - var err error - tmpCfg.Dir, err = ioutil.TempDir("", "gopackages-modquery") - if err != nil { - return err - } - defer os.RemoveAll(tmpCfg.Dir) - - if err := ioutil.WriteFile(filepath.Join(tmpCfg.Dir, "go.mod"), gomod.Bytes(), 0777); err != nil { - return fmt.Errorf("writing go.mod for module cache query: %v", err) - } - - // Run the query, using the import paths calculated from the matches above. - resp, err := driver(&tmpCfg, imports...) - if err != nil { - return fmt.Errorf("querying module cache matches: %v", err) - } - addResponse(resp) - } - - return nil -} - -func getSizes(cfg *Config) (types.Sizes, error) { - return packagesdriver.GetSizesGolist(cfg.Context, cfg.BuildFlags, cfg.Env, cfg.Dir, usesExportData(cfg)) -} - -// roots selects the appropriate paths to walk based on the passed-in configuration, -// particularly the environment and the presence of a go.mod in cfg.Dir's parents. -func roots(cfg *Config) ([]gopathwalk.Root, string, error) { - stdout, err := invokeGo(cfg, "env", "GOROOT", "GOPATH", "GOMOD") - if err != nil { - return nil, "", err - } - - fields := strings.Split(stdout.String(), "\n") - if len(fields) != 4 || len(fields[3]) != 0 { - return nil, "", fmt.Errorf("go env returned unexpected output: %q", stdout.String()) - } - goroot, gopath, gomod := fields[0], filepath.SplitList(fields[1]), fields[2] - var modDir string - if gomod != "" { - modDir = filepath.Dir(gomod) - } - - var roots []gopathwalk.Root - // Always add GOROOT. - roots = append(roots, gopathwalk.Root{ - Path: filepath.Join(goroot, "/src"), - Type: gopathwalk.RootGOROOT, - }) - // If modules are enabled, scan the module dir. - if modDir != "" { - roots = append(roots, gopathwalk.Root{ - Path: modDir, - Type: gopathwalk.RootCurrentModule, + // If we get nothing back from `go list`, + // try to make this file into its own ad-hoc package. + // TODO(rstambler): Should this check against the original response? + if len(response.Packages) == 0 { + response.Packages = append(response.Packages, &Package{ + ID: "command-line-arguments", + PkgPath: query, + GoFiles: []string{query}, + CompiledGoFiles: []string{query}, + Imports: make(map[string]*Package), }) + response.Roots = append(response.Roots, "command-line-arguments") } - // Add either GOPATH/src or GOPATH/pkg/mod, depending on module mode. - for _, p := range gopath { - if modDir != "" { - roots = append(roots, gopathwalk.Root{ - Path: filepath.Join(p, "/pkg/mod"), - Type: gopathwalk.RootModuleCache, - }) - } else { - roots = append(roots, gopathwalk.Root{ - Path: filepath.Join(p, "/src"), - Type: gopathwalk.RootGOPATH, - }) - } - } - - return roots, modDir, nil -} - -// These functions were copied from goimports. See further documentation there. - -// pathMatchesQueries is adapted from pkgIsCandidate. -// TODO: is it reasonable to do Contains here, rather than an exact match on a path component? -func pathMatchesQueries(path string, queries []string) bool { - lastTwo := lastTwoComponents(path) - for _, query := range queries { - if strings.Contains(lastTwo, query) { - return true - } - if hasHyphenOrUpperASCII(lastTwo) && !hasHyphenOrUpperASCII(query) { - lastTwo = lowerASCIIAndRemoveHyphen(lastTwo) - if strings.Contains(lastTwo, query) { - return true + // Handle special cases. + if len(response.Packages) == 1 { + // golang/go#33482: If this is a file= query for ad-hoc packages where + // the file only exists on an overlay, and exists outside of a module, + // add the file to the package and remove the errors. + if response.Packages[0].ID == "command-line-arguments" || + filepath.ToSlash(response.Packages[0].PkgPath) == filepath.ToSlash(query) { + if len(response.Packages[0].GoFiles) == 0 { + filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath + // TODO(matloob): check if the file is outside of a root dir? + for path := range state.cfg.Overlay { + if path == filename { + response.Packages[0].Errors = nil + response.Packages[0].GoFiles = []string{path} + response.Packages[0].CompiledGoFiles = []string{path} + } + } } } } - return false -} - -// lastTwoComponents returns at most the last two path components -// of v, using either / or \ as the path separator. -func lastTwoComponents(v string) string { - nslash := 0 - for i := len(v) - 1; i >= 0; i-- { - if v[i] == '/' || v[i] == '\\' { - nslash++ - if nslash == 2 { - return v[i:] - } - } - } - return v -} - -func hasHyphenOrUpperASCII(s string) bool { - for i := 0; i < len(s); i++ { - b := s[i] - if b == '-' || ('A' <= b && b <= 'Z') { - return true - } - } - return false -} - -func lowerASCIIAndRemoveHyphen(s string) (ret string) { - buf := make([]byte, 0, len(s)) - for i := 0; i < len(s); i++ { - b := s[i] - switch { - case b == '-': - continue - case 'A' <= b && b <= 'Z': - buf = append(buf, b+('a'-'A')) - default: - buf = append(buf, b) - } - } - return string(buf) + return response, nil } // Fields must match go list; @@ -636,6 +381,7 @@ type jsonPackage struct { Imports []string ImportMap map[string]string Deps []string + Module *packagesinternal.Module TestGoFiles []string TestImports []string XTestGoFiles []string @@ -656,10 +402,9 @@ func otherFiles(p *jsonPackage) [][]string { return [][]string{p.CFiles, p.CXXFiles, p.MFiles, p.HFiles, p.FFiles, p.SFiles, p.SwigFiles, p.SwigCXXFiles, p.SysoFiles} } -// golistDriver uses the "go list" command to expand the pattern -// words and return metadata for the specified packages. dir may be -// "" and env may be nil, as per os/exec.Command. -func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driverResponse, error) { +// createDriverResponse uses the "go list" command to expand the pattern +// words and return a response for the specified packages. +func (state *golistState) createDriverResponse(words ...string) (*driverResponse, error) { // go list uses the following identifiers in ImportPath and Imports: // // "p" -- importable package or main (command) @@ -673,11 +418,13 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv // Run "go list" for complete // information on the specified packages. - buf, err := invokeGo(cfg, golistargs(cfg, words)...) + buf, err := state.invokeGo("list", golistargs(state.cfg, words)...) if err != nil { return nil, err } seen := make(map[string]*jsonPackage) + pkgs := make(map[string]*Package) + additionalErrors := make(map[string][]Error) // Decode the JSON and convert it to Package form. var response driverResponse for dec := json.NewDecoder(buf); dec.More(); { @@ -708,18 +455,72 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv // contained in a known module or GOPATH entry. This will allow the package to be // properly "reclaimed" when overlays are processed. if filepath.IsAbs(p.ImportPath) && p.Error != nil { - pkgPath, ok := getPkgPath(cfg, p.ImportPath, rootsDirs) + pkgPath, ok, err := state.getPkgPath(p.ImportPath) + if err != nil { + return nil, err + } if ok { p.ImportPath = pkgPath } } if old, found := seen[p.ImportPath]; found { - if !reflect.DeepEqual(p, old) { - return nil, fmt.Errorf("internal error: go list gives conflicting information for package %v", p.ImportPath) + // If one version of the package has an error, and the other doesn't, assume + // that this is a case where go list is reporting a fake dependency variant + // of the imported package: When a package tries to invalidly import another + // package, go list emits a variant of the imported package (with the same + // import path, but with an error on it, and the package will have a + // DepError set on it). An example of when this can happen is for imports of + // main packages: main packages can not be imported, but they may be + // separately matched and listed by another pattern. + // See golang.org/issue/36188 for more details. + + // The plan is that eventually, hopefully in Go 1.15, the error will be + // reported on the importing package rather than the duplicate "fake" + // version of the imported package. Once all supported versions of Go + // have the new behavior this logic can be deleted. + // TODO(matloob): delete the workaround logic once all supported versions of + // Go return the errors on the proper package. + + // There should be exactly one version of a package that doesn't have an + // error. + if old.Error == nil && p.Error == nil { + if !reflect.DeepEqual(p, old) { + return nil, fmt.Errorf("internal error: go list gives conflicting information for package %v", p.ImportPath) + } + continue } - // skip the duplicate - continue + + // Determine if this package's error needs to be bubbled up. + // This is a hack, and we expect for go list to eventually set the error + // on the package. + if old.Error != nil { + var errkind string + if strings.Contains(old.Error.Err, "not an importable package") { + errkind = "not an importable package" + } else if strings.Contains(old.Error.Err, "use of internal package") && strings.Contains(old.Error.Err, "not allowed") { + errkind = "use of internal package not allowed" + } + if errkind != "" { + if len(old.Error.ImportStack) < 2 { + return nil, fmt.Errorf(`internal error: go list gave a %q error with an import stack with fewer than two elements`, errkind) + } + importingPkg := old.Error.ImportStack[len(old.Error.ImportStack)-2] + additionalErrors[importingPkg] = append(additionalErrors[importingPkg], Error{ + Pos: old.Error.Pos, + Msg: old.Error.Err, + Kind: ListError, + }) + } + } + + // Make sure that if there's a version of the package without an error, + // that's the one reported to the user. + if old.Error == nil { + continue + } + + // This package will replace the old one at the end of the loop. } seen[p.ImportPath] = p @@ -729,6 +530,8 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv GoFiles: absJoin(p.Dir, p.GoFiles, p.CgoFiles), CompiledGoFiles: absJoin(p.Dir, p.CompiledGoFiles), OtherFiles: absJoin(p.Dir, otherFiles(p)...), + forTest: p.ForTest, + module: p.Module, } // Work around https://golang.org/issue/28749: @@ -811,34 +614,43 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv msg += fmt.Sprintf(": import stack: %v", p.Error.ImportStack) } pkg.Errors = append(pkg.Errors, Error{ - Pos: p.Error.Pos, - Msg: msg, + Pos: p.Error.Pos, + Msg: msg, + Kind: ListError, }) } + pkgs[pkg.ID] = pkg + } + + for id, errs := range additionalErrors { + if p, ok := pkgs[id]; ok { + p.Errors = append(p.Errors, errs...) + } + } + for _, pkg := range pkgs { response.Packages = append(response.Packages, pkg) } + sort.Slice(response.Packages, func(i, j int) bool { return response.Packages[i].ID < response.Packages[j].ID }) return &response, nil } // getPkgPath finds the package path of a directory if it's relative to a root directory. -func getPkgPath(cfg *Config, dir string, goInfo func() *goInfo) (string, bool) { +func (state *golistState) getPkgPath(dir string) (string, bool, error) { absDir, err := filepath.Abs(dir) if err != nil { - cfg.Logf("error getting absolute path of %s: %v", dir, err) - return "", false + return "", false, err } - for rdir, rpath := range goInfo().rootDirs { - absRdir, err := filepath.Abs(rdir) - if err != nil { - cfg.Logf("error getting absolute path of %s: %v", rdir, err) - continue - } + roots, err := state.determineRootDirs() + if err != nil { + return "", false, err + } + + for rdir, rpath := range roots { // Make sure that the directory is in the module, // to avoid creating a path relative to another module. - if !strings.HasPrefix(absDir, absRdir) { - cfg.Logf("%s does not have prefix %s", absDir, absRdir) + if !strings.HasPrefix(absDir, rdir) { continue } // TODO(matloob): This doesn't properly handle symlinks. @@ -853,11 +665,11 @@ func getPkgPath(cfg *Config, dir string, goInfo func() *goInfo) (string, bool) { // Once the file is saved, gopls, or the next invocation of the tool will get the correct // result straight from golist. // TODO(matloob): Implement module tiebreaking? - return path.Join(rpath, filepath.ToSlash(r)), true + return path.Join(rpath, filepath.ToSlash(r)), true, nil } - return filepath.ToSlash(r), true + return filepath.ToSlash(r), true, nil } - return "", false + return "", false, nil } // absJoin absolutizes and flattens the lists of files. @@ -876,8 +688,8 @@ func absJoin(dir string, fileses ...[]string) (res []string) { func golistargs(cfg *Config, words []string) []string { const findFlags = NeedImports | NeedTypes | NeedSyntax | NeedTypesInfo fullargs := []string{ - "list", "-e", "-json", - fmt.Sprintf("-compiled=%t", cfg.Mode&(NeedCompiledGoFiles|NeedSyntax|NeedTypesInfo|NeedTypesSizes) != 0), + "-e", "-json", + fmt.Sprintf("-compiled=%t", cfg.Mode&(NeedCompiledGoFiles|NeedSyntax|NeedTypes|NeedTypesInfo|NeedTypesSizes) != 0), fmt.Sprintf("-test=%t", cfg.Tests), fmt.Sprintf("-export=%t", usesExportData(cfg)), fmt.Sprintf("-deps=%t", cfg.Mode&NeedImports != 0), @@ -892,25 +704,20 @@ func golistargs(cfg *Config, words []string) []string { } // invokeGo returns the stdout of a go command invocation. -func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) { - stdout := new(bytes.Buffer) - stderr := new(bytes.Buffer) - cmd := exec.CommandContext(cfg.Context, "go", args...) - // On darwin the cwd gets resolved to the real path, which breaks anything that - // expects the working directory to keep the original path, including the - // go command when dealing with modules. - // The Go stdlib has a special feature where if the cwd and the PWD are the - // same node then it trusts the PWD, so by setting it in the env for the child - // process we fix up all the paths returned by the go command. - cmd.Env = append(append([]string{}, cfg.Env...), "PWD="+cfg.Dir) - cmd.Dir = cfg.Dir - cmd.Stdout = stdout - cmd.Stderr = stderr - defer func(start time.Time) { - cfg.Logf("%s for %v, stderr: <<%s>> stdout: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, args...), stderr, stdout) - }(time.Now()) +func (state *golistState) invokeGo(verb string, args ...string) (*bytes.Buffer, error) { + cfg := state.cfg - if err := cmd.Run(); err != nil { + inv := &gocommand.Invocation{ + Verb: verb, + Args: args, + BuildFlags: cfg.BuildFlags, + Env: cfg.Env, + Logf: cfg.Logf, + WorkingDir: cfg.Dir, + } + + stdout, stderr, _, err := inv.RunRaw(cfg.Context) + if err != nil { // Check for 'go' executable not being found. if ee, ok := err.(*exec.Error); ok && ee.Err == exec.ErrNotFound { return nil, fmt.Errorf("'go list' driver requires 'go', but %s", exec.ErrNotFound) @@ -920,7 +727,7 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) { if !ok { // Catastrophic error: // - context cancellation - return nil, fmt.Errorf("couldn't exec 'go %v': %s %T", args, err, err) + return nil, fmt.Errorf("couldn't run 'go': %v", err) } // Old go version? @@ -947,7 +754,12 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) { !strings.ContainsRune("!\"#$%&'()*,:;<=>?[\\]^`{|}\uFFFD", r) } if len(stderr.String()) > 0 && strings.HasPrefix(stderr.String(), "# ") { - if strings.HasPrefix(strings.TrimLeftFunc(stderr.String()[len("# "):], isPkgPathRune), "\n") { + msg := stderr.String()[len("# "):] + if strings.HasPrefix(strings.TrimLeftFunc(msg, isPkgPathRune), "\n") { + return stdout, nil + } + // Treat pkg-config errors as a special case (golang.org/issue/36770). + if strings.HasPrefix(msg, "pkg-config") { return stdout, nil } } @@ -1036,16 +848,6 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) { return nil, fmt.Errorf("go %v: %s: %s", args, exitErr, stderr) } } - - // As of writing, go list -export prints some non-fatal compilation - // errors to stderr, even with -e set. We would prefer that it put - // them in the Package.Error JSON (see https://golang.org/issue/26319). - // In the meantime, there's nowhere good to put them, but they can - // be useful for debugging. Print them if $GOPACKAGESPRINTGOLISTERRORS - // is set. - if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTGOLISTERRORS") != "" { - fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(cmd, args...), stderr) - } return stdout, nil } diff --git a/vendor/golang.org/x/tools/go/packages/golist_overlay.go b/vendor/golang.org/x/tools/go/packages/golist_overlay.go index a7de62299..7974a6c9b 100644 --- a/vendor/golang.org/x/tools/go/packages/golist_overlay.go +++ b/vendor/golang.org/x/tools/go/packages/golist_overlay.go @@ -1,12 +1,13 @@ package packages import ( - "bytes" "encoding/json" "fmt" "go/parser" "go/token" + "os" "path/filepath" + "sort" "strconv" "strings" ) @@ -16,7 +17,7 @@ import ( // sometimes incorrect. // TODO(matloob): Handle unsupported cases, including the following: // - determining the correct package to add given a new import path -func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func() *goInfo) (modifiedPkgs, needPkgs []string, err error) { +func (state *golistState) processGolistOverlay(response *responseDeduper) (modifiedPkgs, needPkgs []string, err error) { havePkgs := make(map[string]string) // importPath -> non-test package ID needPkgsSet := make(map[string]bool) modifiedPkgsSet := make(map[string]bool) @@ -34,7 +35,23 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( // potentially modifying the transitive set of dependencies). var overlayAddsImports bool - for opath, contents := range cfg.Overlay { + // If both a package and its test package are created by the overlay, we + // need the real package first. Process all non-test files before test + // files, and make the whole process deterministic while we're at it. + var overlayFiles []string + for opath := range state.cfg.Overlay { + overlayFiles = append(overlayFiles, opath) + } + sort.Slice(overlayFiles, func(i, j int) bool { + iTest := strings.HasSuffix(overlayFiles[i], "_test.go") + jTest := strings.HasSuffix(overlayFiles[j], "_test.go") + if iTest != jTest { + return !iTest // non-tests are before tests. + } + return overlayFiles[i] < overlayFiles[j] + }) + for _, opath := range overlayFiles { + contents := state.cfg.Overlay[opath] base := filepath.Base(opath) dir := filepath.Dir(opath) var pkg *Package // if opath belongs to both a package and its test variant, this will be the test variant @@ -64,14 +81,8 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( testVariantOf = p continue nextPackage } + // We must have already seen the package of which this is a test variant. if pkg != nil && p != pkg && pkg.PkgPath == p.PkgPath { - // If we've already seen the test variant, - // make sure to label which package it is a test variant of. - if hasTestFiles(pkg) { - testVariantOf = p - continue nextPackage - } - // If we have already seen the package of which this is a test variant. if hasTestFiles(p) { testVariantOf = pkg } @@ -86,7 +97,10 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( if pkg == nil { // Try to find the module or gopath dir the file is contained in. // Then for modules, add the module opath to the beginning. - pkgPath, ok := getPkgPath(cfg, dir, rootDirs) + pkgPath, ok, err := state.getPkgPath(dir) + if err != nil { + return nil, nil, err + } if !ok { break } @@ -114,6 +128,11 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( if isTestFile && !isXTest && testVariantOf != nil { pkg.GoFiles = append(pkg.GoFiles, testVariantOf.GoFiles...) pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, testVariantOf.CompiledGoFiles...) + // Add the package under test and its imports to the test variant. + pkg.forTest = testVariantOf.PkgPath + for k, v := range testVariantOf.Imports { + pkg.Imports[k] = &Package{ID: v.ID} + } } } } @@ -130,42 +149,45 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( continue } for _, imp := range imports { - _, found := pkg.Imports[imp] - if !found { - overlayAddsImports = true - // TODO(matloob): Handle cases when the following block isn't correct. - // These include imports of vendored packages, etc. - id, ok := havePkgs[imp] - if !ok { - id = imp - } - pkg.Imports[imp] = &Package{ID: id} - // Add dependencies to the non-test variant version of this package as wel. - if testVariantOf != nil { - testVariantOf.Imports[imp] = &Package{ID: id} + if _, found := pkg.Imports[imp]; found { + continue + } + overlayAddsImports = true + id, ok := havePkgs[imp] + if !ok { + var err error + id, err = state.resolveImport(dir, imp) + if err != nil { + return nil, nil, err } } + pkg.Imports[imp] = &Package{ID: id} + // Add dependencies to the non-test variant version of this package as well. + if testVariantOf != nil { + testVariantOf.Imports[imp] = &Package{ID: id} + } } - continue } - // toPkgPath tries to guess the package path given the id. - // This isn't always correct -- it's certainly wrong for - // vendored packages' paths. - toPkgPath := func(id string) string { - // TODO(matloob): Handle vendor paths. - i := strings.IndexByte(id, ' ') - if i >= 0 { - return id[:i] + // toPkgPath guesses the package path given the id. + toPkgPath := func(sourceDir, id string) (string, error) { + if i := strings.IndexByte(id, ' '); i >= 0 { + return state.resolveImport(sourceDir, id[:i]) } - return id + return state.resolveImport(sourceDir, id) } - // Do another pass now that new packages have been created to determine the - // set of missing packages. + // Now that new packages have been created, do another pass to determine + // the new set of missing packages. for _, pkg := range response.dr.Packages { for _, imp := range pkg.Imports { - pkgPath := toPkgPath(imp.ID) + if len(pkg.GoFiles) == 0 { + return nil, nil, fmt.Errorf("cannot resolve imports for package %q with no Go files", pkg.PkgPath) + } + pkgPath, err := toPkgPath(filepath.Dir(pkg.GoFiles[0]), imp.ID) + if err != nil { + return nil, nil, err + } if _, ok := havePkgs[pkgPath]; !ok { needPkgsSet[pkgPath] = true } @@ -185,6 +207,52 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( return modifiedPkgs, needPkgs, err } +// resolveImport finds the the ID of a package given its import path. +// In particular, it will find the right vendored copy when in GOPATH mode. +func (state *golistState) resolveImport(sourceDir, importPath string) (string, error) { + env, err := state.getEnv() + if err != nil { + return "", err + } + if env["GOMOD"] != "" { + return importPath, nil + } + + searchDir := sourceDir + for { + vendorDir := filepath.Join(searchDir, "vendor") + exists, ok := state.vendorDirs[vendorDir] + if !ok { + info, err := os.Stat(vendorDir) + exists = err == nil && info.IsDir() + state.vendorDirs[vendorDir] = exists + } + + if exists { + vendoredPath := filepath.Join(vendorDir, importPath) + if info, err := os.Stat(vendoredPath); err == nil && info.IsDir() { + // We should probably check for .go files here, but shame on anyone who fools us. + path, ok, err := state.getPkgPath(vendoredPath) + if err != nil { + return "", err + } + if ok { + return path, nil + } + } + } + + // We know we've hit the top of the filesystem when we Dir / and get /, + // or C:\ and get C:\, etc. + next := filepath.Dir(searchDir) + if next == searchDir { + break + } + searchDir = next + } + return importPath, nil +} + func hasTestFiles(p *Package) bool { for _, f := range p.GoFiles { if strings.HasSuffix(f, "_test.go") { @@ -194,44 +262,59 @@ func hasTestFiles(p *Package) bool { return false } -// determineRootDirs returns a mapping from directories code can be contained in to the -// corresponding import path prefixes of those directories. -// Its result is used to try to determine the import path for a package containing -// an overlay file. -func determineRootDirs(cfg *Config) map[string]string { - // Assume modules first: - out, err := invokeGo(cfg, "list", "-m", "-json", "all") +// determineRootDirs returns a mapping from absolute directories that could +// contain code to their corresponding import path prefixes. +func (state *golistState) determineRootDirs() (map[string]string, error) { + env, err := state.getEnv() if err != nil { - return determineRootDirsGOPATH(cfg) + return nil, err + } + if env["GOMOD"] != "" { + state.rootsOnce.Do(func() { + state.rootDirs, state.rootDirsError = state.determineRootDirsModules() + }) + } else { + state.rootsOnce.Do(func() { + state.rootDirs, state.rootDirsError = state.determineRootDirsGOPATH() + }) + } + return state.rootDirs, state.rootDirsError +} + +func (state *golistState) determineRootDirsModules() (map[string]string, error) { + out, err := state.invokeGo("list", "-m", "-json", "all") + if err != nil { + return nil, err } m := map[string]string{} type jsonMod struct{ Path, Dir string } for dec := json.NewDecoder(out); dec.More(); { mod := new(jsonMod) if err := dec.Decode(mod); err != nil { - return m // Give up and return an empty map. Package won't be found for overlay. + return nil, err } if mod.Dir != "" && mod.Path != "" { // This is a valid module; add it to the map. - m[mod.Dir] = mod.Path + absDir, err := filepath.Abs(mod.Dir) + if err != nil { + return nil, err + } + m[absDir] = mod.Path } } - return m + return m, nil } -func determineRootDirsGOPATH(cfg *Config) map[string]string { +func (state *golistState) determineRootDirsGOPATH() (map[string]string, error) { m := map[string]string{} - out, err := invokeGo(cfg, "env", "GOPATH") - if err != nil { - // Could not determine root dir mapping. Everything is best-effort, so just return an empty map. - // When we try to find the import path for a directory, there will be no root-dir match and - // we'll give up. - return m + for _, dir := range filepath.SplitList(state.mustGetEnv()["GOPATH"]) { + absDir, err := filepath.Abs(dir) + if err != nil { + return nil, err + } + m[filepath.Join(absDir, "src")] = "" } - for _, p := range filepath.SplitList(string(bytes.TrimSpace(out.Bytes()))) { - m[filepath.Join(p, "src")] = "" - } - return m + return m, nil } func extractImports(filename string, contents []byte) ([]string, error) { diff --git a/vendor/golang.org/x/tools/go/packages/packages.go b/vendor/golang.org/x/tools/go/packages/packages.go index 050cca43a..1ac6558c1 100644 --- a/vendor/golang.org/x/tools/go/packages/packages.go +++ b/vendor/golang.org/x/tools/go/packages/packages.go @@ -23,6 +23,7 @@ import ( "sync" "golang.org/x/tools/go/gcexportdata" + "golang.org/x/tools/internal/packagesinternal" ) // A LoadMode controls the amount of detail to return when loading. @@ -34,6 +35,9 @@ import ( // Load may return more information than requested. type LoadMode int +// TODO(matloob): When a V2 of go/packages is released, rename NeedExportsFile to +// NeedExportFile to make it consistent with the Package field it's adding. + const ( // NeedName adds Name and PkgPath. NeedName LoadMode = 1 << iota @@ -51,7 +55,7 @@ const ( // NeedDeps adds the fields requested by the LoadMode in the packages in Imports. NeedDeps - // NeedExportsFile adds ExportsFile. + // NeedExportsFile adds ExportFile. NeedExportsFile // NeedTypes adds Types, Fset, and IllTyped. @@ -160,7 +164,7 @@ type Config struct { Tests bool // Overlay provides a mapping of absolute file paths to file contents. - // If the file with the given path already exists, the parser will use the + // If the file with the given path already exists, the parser will use the // alternative file contents provided by the map. // // Overlays provide incomplete support for when a given file doesn't @@ -292,6 +296,21 @@ type Package struct { // TypesSizes provides the effective size function for types in TypesInfo. TypesSizes types.Sizes + + // forTest is the package under test, if any. + forTest string + + // module is the module information for the package if it exists. + module *packagesinternal.Module +} + +func init() { + packagesinternal.GetForTest = func(p interface{}) string { + return p.(*Package).forTest + } + packagesinternal.GetModule = func(p interface{}) *packagesinternal.Module { + return p.(*Package).module + } } // An Error describes a problem with a package's metadata, syntax, or types. @@ -500,12 +519,23 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { if i, found := rootMap[pkg.ID]; found { rootIndex = i } + + // Overlays can invalidate export data. + // TODO(matloob): make this check fine-grained based on dependencies on overlaid files + exportDataInvalid := len(ld.Overlay) > 0 || pkg.ExportFile == "" && pkg.PkgPath != "unsafe" + // This package needs type information if the caller requested types and the package is + // either a root, or it's a non-root and the user requested dependencies ... + needtypes := (ld.Mode&NeedTypes|NeedTypesInfo != 0 && (rootIndex >= 0 || ld.Mode&NeedDeps != 0)) + // This package needs source if the call requested source (or types info, which implies source) + // and the package is either a root, or itas a non- root and the user requested dependencies... + needsrc := ((ld.Mode&(NeedSyntax|NeedTypesInfo) != 0 && (rootIndex >= 0 || ld.Mode&NeedDeps != 0)) || + // ... or if we need types and the exportData is invalid. We fall back to (incompletely) + // typechecking packages from source if they fail to compile. + (ld.Mode&NeedTypes|NeedTypesInfo != 0 && exportDataInvalid)) && pkg.PkgPath != "unsafe" lpkg := &loaderPackage{ Package: pkg, - needtypes: (ld.Mode&(NeedTypes|NeedTypesInfo) != 0 && ld.Mode&NeedDeps != 0 && rootIndex < 0) || rootIndex >= 0, - needsrc: (ld.Mode&(NeedSyntax|NeedTypesInfo) != 0 && ld.Mode&NeedDeps != 0 && rootIndex < 0) || rootIndex >= 0 || - len(ld.Overlay) > 0 || // Overlays can invalidate export data. TODO(matloob): make this check fine-grained based on dependencies on overlaid files - pkg.ExportFile == "" && pkg.PkgPath != "unsafe", + needtypes: needtypes, + needsrc: needsrc, } ld.pkgs[lpkg.ID] = lpkg if rootIndex >= 0 { @@ -713,7 +743,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { // which would then require that such created packages be explicitly // inserted back into the Import graph as a final step after export data loading. // The Diamond test exercises this case. - if !lpkg.needtypes { + if !lpkg.needtypes && !lpkg.needsrc { return } if !lpkg.needsrc { diff --git a/vendor/golang.org/x/tools/imports/forward.go b/vendor/golang.org/x/tools/imports/forward.go index eef25969d..b4f428767 100644 --- a/vendor/golang.org/x/tools/imports/forward.go +++ b/vendor/golang.org/x/tools/imports/forward.go @@ -4,6 +4,7 @@ package imports // import "golang.org/x/tools/imports" import ( "go/build" + "os" intimp "golang.org/x/tools/internal/imports" ) @@ -42,6 +43,10 @@ func Process(filename string, src []byte, opt *Options) ([]byte, error) { Env: &intimp.ProcessEnv{ GOPATH: build.Default.GOPATH, GOROOT: build.Default.GOROOT, + GOFLAGS: os.Getenv("GOFLAGS"), + GO111MODULE: os.Getenv("GO111MODULE"), + GOPROXY: os.Getenv("GOPROXY"), + GOSUMDB: os.Getenv("GOSUMDB"), Debug: Debug, LocalPrefix: LocalPrefix, }, diff --git a/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go b/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go index 7219c8e9f..9887f7e7a 100644 --- a/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go +++ b/vendor/golang.org/x/tools/internal/fastwalk/fastwalk.go @@ -14,14 +14,14 @@ import ( "sync" ) -// TraverseLink is used as a return value from WalkFuncs to indicate that the +// ErrTraverseLink is used as a return value from WalkFuncs to indicate that the // symlink named in the call may be traversed. -var TraverseLink = errors.New("fastwalk: traverse symlink, assuming target is a directory") +var ErrTraverseLink = errors.New("fastwalk: traverse symlink, assuming target is a directory") -// SkipFiles is a used as a return value from WalkFuncs to indicate that the +// ErrSkipFiles is a used as a return value from WalkFuncs to indicate that the // callback should not be called for any other files in the current directory. // Child directories will still be traversed. -var SkipFiles = errors.New("fastwalk: skip remaining files in directory") +var ErrSkipFiles = errors.New("fastwalk: skip remaining files in directory") // Walk is a faster implementation of filepath.Walk. // @@ -167,7 +167,7 @@ func (w *walker) onDirEnt(dirName, baseName string, typ os.FileMode) error { err := w.fn(joined, typ) if typ == os.ModeSymlink { - if err == TraverseLink { + if err == ErrTraverseLink { // Set callbackDone so we don't call it twice for both the // symlink-as-symlink and the symlink-as-directory later: w.enqueue(walkItem{dir: joined, callbackDone: true}) diff --git a/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_portable.go b/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_portable.go index a906b8759..b0d6327a9 100644 --- a/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_portable.go +++ b/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_portable.go @@ -26,7 +26,7 @@ func readDir(dirName string, fn func(dirName, entName string, typ os.FileMode) e continue } if err := fn(dirName, fi.Name(), fi.Mode()&os.ModeType); err != nil { - if err == SkipFiles { + if err == ErrSkipFiles { skipFiles = true continue } diff --git a/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go b/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go index 3369b1a0b..ce38fdcf8 100644 --- a/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go +++ b/vendor/golang.org/x/tools/internal/fastwalk/fastwalk_unix.go @@ -66,7 +66,7 @@ func readDir(dirName string, fn func(dirName, entName string, typ os.FileMode) e continue } if err := fn(dirName, name, typ); err != nil { - if err == SkipFiles { + if err == ErrSkipFiles { skipFiles = true continue } diff --git a/vendor/golang.org/x/tools/internal/gocommand/invoke.go b/vendor/golang.org/x/tools/internal/gocommand/invoke.go new file mode 100644 index 000000000..75d73e744 --- /dev/null +++ b/vendor/golang.org/x/tools/internal/gocommand/invoke.go @@ -0,0 +1,121 @@ +// Package gocommand is a helper for calling the go command. +package gocommand + +import ( + "bytes" + "context" + "fmt" + "os" + "os/exec" + "strings" + "time" +) + +// An Invocation represents a call to the go command. +type Invocation struct { + Verb string + Args []string + BuildFlags []string + Env []string + WorkingDir string + Logf func(format string, args ...interface{}) +} + +// Run runs the invocation, returning its stdout and an error suitable for +// human consumption, including stderr. +func (i *Invocation) Run(ctx context.Context) (*bytes.Buffer, error) { + stdout, _, friendly, _ := i.RunRaw(ctx) + return stdout, friendly +} + +// RunRaw is like Run, but also returns the raw stderr and error for callers +// that want to do low-level error handling/recovery. +func (i *Invocation) RunRaw(ctx context.Context) (stdout *bytes.Buffer, stderr *bytes.Buffer, friendlyError error, rawError error) { + log := i.Logf + if log == nil { + log = func(string, ...interface{}) {} + } + + goArgs := []string{i.Verb} + switch i.Verb { + case "mod": + // mod needs the sub-verb before build flags. + goArgs = append(goArgs, i.Args[0]) + goArgs = append(goArgs, i.BuildFlags...) + goArgs = append(goArgs, i.Args[1:]...) + case "env": + // env doesn't take build flags. + goArgs = append(goArgs, i.Args...) + default: + goArgs = append(goArgs, i.BuildFlags...) + goArgs = append(goArgs, i.Args...) + } + cmd := exec.Command("go", goArgs...) + stdout = &bytes.Buffer{} + stderr = &bytes.Buffer{} + cmd.Stdout = stdout + cmd.Stderr = stderr + // On darwin the cwd gets resolved to the real path, which breaks anything that + // expects the working directory to keep the original path, including the + // go command when dealing with modules. + // The Go stdlib has a special feature where if the cwd and the PWD are the + // same node then it trusts the PWD, so by setting it in the env for the child + // process we fix up all the paths returned by the go command. + cmd.Env = append(append([]string{}, i.Env...), "PWD="+i.WorkingDir) + cmd.Dir = i.WorkingDir + + defer func(start time.Time) { log("%s for %v", time.Since(start), cmdDebugStr(cmd)) }(time.Now()) + + rawError = runCmdContext(ctx, cmd) + friendlyError = rawError + if rawError != nil { + // Check for 'go' executable not being found. + if ee, ok := rawError.(*exec.Error); ok && ee.Err == exec.ErrNotFound { + friendlyError = fmt.Errorf("go command required, not found: %v", ee) + } + if ctx.Err() != nil { + friendlyError = ctx.Err() + } + friendlyError = fmt.Errorf("err: %v: stderr: %s", rawError, stderr) + } + return +} + +// runCmdContext is like exec.CommandContext except it sends os.Interrupt +// before os.Kill. +func runCmdContext(ctx context.Context, cmd *exec.Cmd) error { + if err := cmd.Start(); err != nil { + return err + } + resChan := make(chan error, 1) + go func() { + resChan <- cmd.Wait() + }() + + select { + case err := <-resChan: + return err + case <-ctx.Done(): + } + // Cancelled. Interrupt and see if it ends voluntarily. + cmd.Process.Signal(os.Interrupt) + select { + case err := <-resChan: + return err + case <-time.After(time.Second): + } + // Didn't shut down in response to interrupt. Kill it hard. + cmd.Process.Kill() + return <-resChan +} + +func cmdDebugStr(cmd *exec.Cmd) string { + env := make(map[string]string) + for _, kv := range cmd.Env { + split := strings.Split(kv, "=") + k, v := split[0], split[1] + env[k] = v + } + + return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v GOPROXY=%v PWD=%v go %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["GOPROXY"], env["PWD"], cmd.Args) +} diff --git a/vendor/golang.org/x/tools/internal/gopathwalk/walk.go b/vendor/golang.org/x/tools/internal/gopathwalk/walk.go index 9a61bdbf5..64309db74 100644 --- a/vendor/golang.org/x/tools/internal/gopathwalk/walk.go +++ b/vendor/golang.org/x/tools/internal/gopathwalk/walk.go @@ -77,6 +77,7 @@ func WalkSkip(roots []Root, add func(root Root, dir string), skip func(root Root } } +// walkDir creates a walker and starts fastwalk with this walker. func walkDir(root Root, add func(Root, string), skip func(root Root, dir string) bool, opts Options) { if _, err := os.Stat(root.Path); os.IsNotExist(err) { if opts.Debug { @@ -114,7 +115,7 @@ type walker struct { ignoredDirs []os.FileInfo // The ignored directories, loaded from .goimportsignore files. } -// init initializes the walker based on its Options. +// init initializes the walker based on its Options func (w *walker) init() { var ignoredPaths []string if w.root.Type == RootModuleCache { @@ -167,6 +168,7 @@ func (w *walker) getIgnoredDirs(path string) []string { return ignoredDirs } +// shouldSkipDir reports whether the file should be skipped or not. func (w *walker) shouldSkipDir(fi os.FileInfo, dir string) bool { for _, ignoredDir := range w.ignoredDirs { if os.SameFile(fi, ignoredDir) { @@ -180,20 +182,21 @@ func (w *walker) shouldSkipDir(fi os.FileInfo, dir string) bool { return false } +// walk walks through the given path. func (w *walker) walk(path string, typ os.FileMode) error { dir := filepath.Dir(path) if typ.IsRegular() { if dir == w.root.Path && (w.root.Type == RootGOROOT || w.root.Type == RootGOPATH) { // Doesn't make sense to have regular files // directly in your $GOPATH/src or $GOROOT/src. - return fastwalk.SkipFiles + return fastwalk.ErrSkipFiles } if !strings.HasSuffix(path, ".go") { return nil } w.add(w.root, dir) - return fastwalk.SkipFiles + return fastwalk.ErrSkipFiles } if typ == os.ModeDir { base := filepath.Base(path) @@ -221,7 +224,7 @@ func (w *walker) walk(path string, typ os.FileMode) error { return nil } if w.shouldTraverse(dir, fi) { - return fastwalk.TraverseLink + return fastwalk.ErrTraverseLink } } return nil diff --git a/vendor/golang.org/x/tools/internal/imports/fix.go b/vendor/golang.org/x/tools/internal/imports/fix.go index f531024da..5e0c9dff0 100644 --- a/vendor/golang.org/x/tools/internal/imports/fix.go +++ b/vendor/golang.org/x/tools/internal/imports/fix.go @@ -14,7 +14,6 @@ import ( "go/token" "io/ioutil" "os" - "os/exec" "path" "path/filepath" "reflect" @@ -22,12 +21,11 @@ import ( "strconv" "strings" "sync" - "time" "unicode" "unicode/utf8" "golang.org/x/tools/go/ast/astutil" - "golang.org/x/tools/go/packages" + "golang.org/x/tools/internal/gocommand" "golang.org/x/tools/internal/gopathwalk" ) @@ -82,7 +80,8 @@ type ImportFix struct { // IdentName is the identifier that this fix will add or remove. IdentName string // FixType is the type of fix this is (AddImport, DeleteImport, SetImportName). - FixType ImportFixType + FixType ImportFixType + Relevance int // see pkg } // An ImportInfo represents a single import statement. @@ -537,7 +536,7 @@ func getFixes(fset *token.FileSet, f *ast.File, filename string, env *ProcessEnv // derive package names from import paths, see if the file is already // complete. We can't add any imports yet, because we don't know // if missing references are actually package vars. - p := &pass{fset: fset, f: f, srcDir: srcDir} + p := &pass{fset: fset, f: f, srcDir: srcDir, env: env} if fixes, done := p.load(); done { return fixes, nil } @@ -559,8 +558,7 @@ func getFixes(fset *token.FileSet, f *ast.File, filename string, env *ProcessEnv } // Third pass: get real package names where we had previously used - // the naive algorithm. This is the first step that will use the - // environment, so we provide it here for the first time. + // the naive algorithm. p = &pass{fset: fset, f: f, srcDir: srcDir, env: env} p.loadRealPackageNames = true p.otherFiles = otherFiles @@ -585,62 +583,86 @@ func getFixes(fset *token.FileSet, f *ast.File, filename string, env *ProcessEnv return fixes, nil } -// getCandidatePkgs returns the list of pkgs that are accessible from filename, -// optionall filtered to only packages named pkgName. -func getCandidatePkgs(pkgName, filename string, env *ProcessEnv) ([]*pkg, error) { - // TODO(heschi): filter out current package. (Don't forget x_test can import x.) +// Highest relevance, used for the standard library. Chosen arbitrarily to +// match pre-existing gopls code. +const MaxRelevance = 7 - var result []*pkg +// getCandidatePkgs works with the passed callback to find all acceptable packages. +// It deduplicates by import path, and uses a cached stdlib rather than reading +// from disk. +func getCandidatePkgs(ctx context.Context, wrappedCallback *scanCallback, filename, filePkg string, env *ProcessEnv) error { + notSelf := func(p *pkg) bool { + return p.packageName != filePkg || p.dir != filepath.Dir(filename) + } // Start off with the standard library. - for importPath := range stdlib { - if pkgName != "" && path.Base(importPath) != pkgName { - continue - } - result = append(result, &pkg{ + for importPath, exports := range stdlib { + p := &pkg{ dir: filepath.Join(env.GOROOT, "src", importPath), importPathShort: importPath, packageName: path.Base(importPath), - relevance: 0, - }) - } - - // Exclude goroot results -- getting them is relatively expensive, not cached, - // and generally redundant with the in-memory version. - exclude := []gopathwalk.RootType{gopathwalk.RootGOROOT} - // Only the go/packages resolver uses the first argument, and nobody uses that resolver. - scannedPkgs, err := env.GetResolver().scan(nil, true, exclude) - if err != nil { - return nil, err + relevance: MaxRelevance, + } + if notSelf(p) && wrappedCallback.packageNameLoaded(p) { + wrappedCallback.exportsLoaded(p, exports) + } } + var mu sync.Mutex dupCheck := map[string]struct{}{} - for _, pkg := range scannedPkgs { - if pkgName != "" && pkg.packageName != pkgName { - continue - } - if !canUse(filename, pkg.dir) { - continue - } - if _, ok := dupCheck[pkg.importPathShort]; ok { - continue - } - dupCheck[pkg.importPathShort] = struct{}{} - result = append(result, pkg) + + scanFilter := &scanCallback{ + rootFound: func(root gopathwalk.Root) bool { + // Exclude goroot results -- getting them is relatively expensive, not cached, + // and generally redundant with the in-memory version. + return root.Type != gopathwalk.RootGOROOT && wrappedCallback.rootFound(root) + }, + dirFound: wrappedCallback.dirFound, + packageNameLoaded: func(pkg *pkg) bool { + mu.Lock() + defer mu.Unlock() + if _, ok := dupCheck[pkg.importPathShort]; ok { + return false + } + dupCheck[pkg.importPathShort] = struct{}{} + return notSelf(pkg) && wrappedCallback.packageNameLoaded(pkg) + }, + exportsLoaded: func(pkg *pkg, exports []string) { + // If we're an x_test, load the package under test's test variant. + if strings.HasSuffix(filePkg, "_test") && pkg.dir == filepath.Dir(filename) { + var err error + _, exports, err = loadExportsFromFiles(ctx, env, pkg.dir, true) + if err != nil { + return + } + } + wrappedCallback.exportsLoaded(pkg, exports) + }, } + return env.GetResolver().scan(ctx, scanFilter) +} - // Sort first by relevance, then by package name, with import path as a tiebreaker. - sort.Slice(result, func(i, j int) bool { - pi, pj := result[i], result[j] - if pi.relevance != pj.relevance { - return pi.relevance < pj.relevance - } - if pi.packageName != pj.packageName { - return pi.packageName < pj.packageName - } - return pi.importPathShort < pj.importPathShort - }) +func ScoreImportPaths(ctx context.Context, env *ProcessEnv, paths []string) map[string]int { + result := make(map[string]int) + for _, path := range paths { + result[path] = env.GetResolver().scoreImportPath(ctx, path) + } + return result +} - return result, nil +func PrimeCache(ctx context.Context, env *ProcessEnv) error { + // Fully scan the disk for directories, but don't actually read any Go files. + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true + }, + dirFound: func(pkg *pkg) bool { + return false + }, + packageNameLoaded: func(pkg *pkg) bool { + return false + }, + } + return getCandidatePkgs(ctx, callback, "", "", env) } func candidateImportName(pkg *pkg) string { @@ -651,23 +673,37 @@ func candidateImportName(pkg *pkg) string { } // getAllCandidates gets all of the candidates to be imported, regardless of if they are needed. -func getAllCandidates(filename string, env *ProcessEnv) ([]ImportFix, error) { - pkgs, err := getCandidatePkgs("", filename, env) - if err != nil { - return nil, err +func getAllCandidates(ctx context.Context, wrapped func(ImportFix), searchPrefix, filename, filePkg string, env *ProcessEnv) error { + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true + }, + dirFound: func(pkg *pkg) bool { + if !canUse(filename, pkg.dir) { + return false + } + // Try the assumed package name first, then a simpler path match + // in case of packages named vN, which are not uncommon. + return strings.HasPrefix(ImportPathToAssumedName(pkg.importPathShort), searchPrefix) || + strings.HasPrefix(path.Base(pkg.importPathShort), searchPrefix) + }, + packageNameLoaded: func(pkg *pkg) bool { + if !strings.HasPrefix(pkg.packageName, searchPrefix) { + return false + } + wrapped(ImportFix{ + StmtInfo: ImportInfo{ + ImportPath: pkg.importPathShort, + Name: candidateImportName(pkg), + }, + IdentName: pkg.packageName, + FixType: AddImport, + Relevance: pkg.relevance, + }) + return false + }, } - result := make([]ImportFix, 0, len(pkgs)) - for _, pkg := range pkgs { - result = append(result, ImportFix{ - StmtInfo: ImportInfo{ - ImportPath: pkg.importPathShort, - Name: candidateImportName(pkg), - }, - IdentName: pkg.packageName, - FixType: AddImport, - }) - } - return result, nil + return getCandidatePkgs(ctx, callback, filename, filePkg, env) } // A PackageExport is a package and its exports. @@ -676,42 +712,34 @@ type PackageExport struct { Exports []string } -func getPackageExports(completePackage, filename string, env *ProcessEnv) ([]PackageExport, error) { - pkgs, err := getCandidatePkgs(completePackage, filename, env) - if err != nil { - return nil, err +func getPackageExports(ctx context.Context, wrapped func(PackageExport), searchPkg, filename, filePkg string, env *ProcessEnv) error { + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true + }, + dirFound: func(pkg *pkg) bool { + return pkgIsCandidate(filename, references{searchPkg: nil}, pkg) + }, + packageNameLoaded: func(pkg *pkg) bool { + return pkg.packageName == searchPkg + }, + exportsLoaded: func(pkg *pkg, exports []string) { + sort.Strings(exports) + wrapped(PackageExport{ + Fix: &ImportFix{ + StmtInfo: ImportInfo{ + ImportPath: pkg.importPathShort, + Name: candidateImportName(pkg), + }, + IdentName: pkg.packageName, + FixType: AddImport, + Relevance: pkg.relevance, + }, + Exports: exports, + }) + }, } - - results := make([]PackageExport, 0, len(pkgs)) - for _, pkg := range pkgs { - fix := &ImportFix{ - StmtInfo: ImportInfo{ - ImportPath: pkg.importPathShort, - Name: candidateImportName(pkg), - }, - IdentName: pkg.packageName, - FixType: AddImport, - } - var exports []string - if e, ok := stdlib[pkg.importPathShort]; ok { - exports = e - } else { - exports, err = loadExportsForPackage(context.Background(), env, completePackage, pkg) - if err != nil { - if env.Debug { - env.Logf("while completing %q, error loading exports from %q: %v", completePackage, pkg.importPathShort, err) - } - continue - } - } - sort.Strings(exports) - results = append(results, PackageExport{ - Fix: fix, - Exports: exports, - }) - } - - return results, nil + return getCandidatePkgs(ctx, callback, filename, filePkg, env) } // ProcessEnv contains environment variables and settings that affect the use of @@ -720,20 +748,26 @@ type ProcessEnv struct { LocalPrefix string Debug bool + BuildFlags []string + // If non-empty, these will be used instead of the // process-wide values. GOPATH, GOROOT, GO111MODULE, GOPROXY, GOFLAGS, GOSUMDB string WorkingDir string - // If true, use go/packages regardless of the environment. - ForceGoPackages bool - // Logf is the default logger for the ProcessEnv. Logf func(format string, args ...interface{}) resolver Resolver } +// CopyConfig copies the env's configuration into a new env. +func (e *ProcessEnv) CopyConfig() *ProcessEnv { + copy := *e + copy.resolver = nil + return © +} + func (e *ProcessEnv) env() []string { env := os.Environ() add := func(k, v string) { @@ -757,73 +791,55 @@ func (e *ProcessEnv) GetResolver() Resolver { if e.resolver != nil { return e.resolver } - if e.ForceGoPackages { - e.resolver = &goPackagesResolver{env: e} - return e.resolver - } - - out, err := e.invokeGo("env", "GOMOD") + out, err := e.invokeGo(context.TODO(), "env", "GOMOD") if err != nil || len(bytes.TrimSpace(out.Bytes())) == 0 { - e.resolver = &gopathResolver{env: e} + e.resolver = newGopathResolver(e) return e.resolver } - e.resolver = &ModuleResolver{env: e} + e.resolver = newModuleResolver(e) return e.resolver } -func (e *ProcessEnv) newPackagesConfig(mode packages.LoadMode) *packages.Config { - return &packages.Config{ - Mode: mode, - Dir: e.WorkingDir, - Env: e.env(), - } -} - func (e *ProcessEnv) buildContext() *build.Context { ctx := build.Default ctx.GOROOT = e.GOROOT ctx.GOPATH = e.GOPATH - // As of Go 1.14, build.Context has a WorkingDir field + // As of Go 1.14, build.Context has a Dir field // (see golang.org/issue/34860). // Populate it only if present. - if wd := reflect.ValueOf(&ctx).Elem().FieldByName("WorkingDir"); wd.IsValid() && wd.Kind() == reflect.String { - wd.SetString(e.WorkingDir) + rc := reflect.ValueOf(&ctx).Elem() + dir := rc.FieldByName("Dir") + if !dir.IsValid() { + // Working drafts of Go 1.14 named the field "WorkingDir" instead. + // TODO(bcmills): Remove this case after the Go 1.14 beta has been released. + dir = rc.FieldByName("WorkingDir") } + if dir.IsValid() && dir.Kind() == reflect.String { + dir.SetString(e.WorkingDir) + } + return &ctx } -func (e *ProcessEnv) invokeGo(args ...string) (*bytes.Buffer, error) { - cmd := exec.Command("go", args...) - stdout := &bytes.Buffer{} - stderr := &bytes.Buffer{} - cmd.Stdout = stdout - cmd.Stderr = stderr - cmd.Env = e.env() - cmd.Dir = e.WorkingDir - - if e.Debug { - defer func(start time.Time) { e.Logf("%s for %v", time.Since(start), cmdDebugStr(cmd)) }(time.Now()) +func (e *ProcessEnv) invokeGo(ctx context.Context, verb string, args ...string) (*bytes.Buffer, error) { + inv := gocommand.Invocation{ + Verb: verb, + Args: args, + BuildFlags: e.BuildFlags, + Env: e.env(), + Logf: e.Logf, + WorkingDir: e.WorkingDir, } - if err := cmd.Run(); err != nil { - return nil, fmt.Errorf("running go: %v (stderr:\n%s)", err, stderr) - } - return stdout, nil -} - -func cmdDebugStr(cmd *exec.Cmd) string { - env := make(map[string]string) - for _, kv := range cmd.Env { - split := strings.Split(kv, "=") - k, v := split[0], split[1] - env[k] = v - } - - return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v GOPROXY=%v PWD=%v go %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["GOPROXY"], env["PWD"], cmd.Args) + return inv.Run(ctx) } func addStdlibCandidates(pass *pass, refs references) { add := func(pkg string) { + // Prevent self-imports. + if path.Base(pkg) == pass.f.Name.Name && filepath.Join(pass.env.GOROOT, "src", pkg) == pass.srcDir { + return + } exports := copyExports(stdlib[pkg]) pass.addCandidate( &ImportInfo{ImportPath: pkg}, @@ -848,94 +864,65 @@ func addStdlibCandidates(pass *pass, refs references) { type Resolver interface { // loadPackageNames loads the package names in importPaths. loadPackageNames(importPaths []string, srcDir string) (map[string]string, error) - // scan finds (at least) the packages satisfying refs. If loadNames is true, - // package names will be set on the results, and dirs whose package name - // could not be determined will be excluded. - scan(refs references, loadNames bool, exclude []gopathwalk.RootType) ([]*pkg, error) + // scan works with callback to search for packages. See scanCallback for details. + scan(ctx context.Context, callback *scanCallback) error // loadExports returns the set of exported symbols in the package at dir. // loadExports may be called concurrently. - loadExports(ctx context.Context, pkg *pkg) (string, []string, error) + loadExports(ctx context.Context, pkg *pkg, includeTest bool) (string, []string, error) + // scoreImportPath returns the relevance for an import path. + scoreImportPath(ctx context.Context, path string) int ClearForNewScan() } -// gopackagesResolver implements resolver for GOPATH and module workspaces using go/packages. -type goPackagesResolver struct { - env *ProcessEnv -} - -func (r *goPackagesResolver) ClearForNewScan() {} - -func (r *goPackagesResolver) loadPackageNames(importPaths []string, srcDir string) (map[string]string, error) { - if len(importPaths) == 0 { - return nil, nil - } - cfg := r.env.newPackagesConfig(packages.LoadFiles) - pkgs, err := packages.Load(cfg, importPaths...) - if err != nil { - return nil, err - } - names := map[string]string{} - for _, pkg := range pkgs { - names[VendorlessPath(pkg.PkgPath)] = pkg.Name - } - // We may not have found all the packages. Guess the rest. - for _, path := range importPaths { - if _, ok := names[path]; ok { - continue - } - names[path] = ImportPathToAssumedName(path) - } - return names, nil - -} - -func (r *goPackagesResolver) scan(refs references, _ bool, _ []gopathwalk.RootType) ([]*pkg, error) { - var loadQueries []string - for pkgName := range refs { - loadQueries = append(loadQueries, "iamashamedtousethedisabledqueryname="+pkgName) - } - sort.Strings(loadQueries) - cfg := r.env.newPackagesConfig(packages.LoadFiles) - goPackages, err := packages.Load(cfg, loadQueries...) - if err != nil { - return nil, err - } - - var scan []*pkg - for _, goPackage := range goPackages { - scan = append(scan, &pkg{ - dir: filepath.Dir(goPackage.CompiledGoFiles[0]), - importPathShort: VendorlessPath(goPackage.PkgPath), - goPackage: goPackage, - packageName: goPackage.Name, - }) - } - return scan, nil -} - -func (r *goPackagesResolver) loadExports(ctx context.Context, pkg *pkg) (string, []string, error) { - if pkg.goPackage == nil { - return "", nil, fmt.Errorf("goPackage not set") - } - var exports []string - fset := token.NewFileSet() - for _, fname := range pkg.goPackage.CompiledGoFiles { - f, err := parser.ParseFile(fset, fname, nil, 0) - if err != nil { - return "", nil, fmt.Errorf("parsing %s: %v", fname, err) - } - for name := range f.Scope.Objects { - if ast.IsExported(name) { - exports = append(exports, name) - } - } - } - return pkg.goPackage.Name, exports, nil +// A scanCallback controls a call to scan and receives its results. +// In general, minor errors will be silently discarded; a user should not +// expect to receive a full series of calls for everything. +type scanCallback struct { + // rootFound is called before scanning a new root dir. If it returns true, + // the root will be scanned. Returning false will not necessarily prevent + // directories from that root making it to dirFound. + rootFound func(gopathwalk.Root) bool + // dirFound is called when a directory is found that is possibly a Go package. + // pkg will be populated with everything except packageName. + // If it returns true, the package's name will be loaded. + dirFound func(pkg *pkg) bool + // packageNameLoaded is called when a package is found and its name is loaded. + // If it returns true, the package's exports will be loaded. + packageNameLoaded func(pkg *pkg) bool + // exportsLoaded is called when a package's exports have been loaded. + exportsLoaded func(pkg *pkg, exports []string) } func addExternalCandidates(pass *pass, refs references, filename string) error { - dirScan, err := pass.env.GetResolver().scan(refs, false, nil) + var mu sync.Mutex + found := make(map[string][]pkgDistance) + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true // We want everything. + }, + dirFound: func(pkg *pkg) bool { + return pkgIsCandidate(filename, refs, pkg) + }, + packageNameLoaded: func(pkg *pkg) bool { + if _, want := refs[pkg.packageName]; !want { + return false + } + if pkg.dir == pass.srcDir && pass.f.Name.Name == pkg.packageName { + // The candidate is in the same directory and has the + // same package name. Don't try to import ourselves. + return false + } + if !canUse(filename, pkg.dir) { + return false + } + mu.Lock() + defer mu.Unlock() + found[pkg.packageName] = append(found[pkg.packageName], pkgDistance{pkg, distance(pass.srcDir, pkg.dir)}) + return false // We'll do our own loading after we sort. + }, + } + err := pass.env.GetResolver().scan(context.Background(), callback) if err != nil { return err } @@ -962,7 +949,7 @@ func addExternalCandidates(pass *pass, refs references, filename string) error { go func(pkgName string, symbols map[string]bool) { defer wg.Done() - found, err := findImport(ctx, pass, dirScan, pkgName, symbols, filename) + found, err := findImport(ctx, pass, found[pkgName], pkgName, symbols, filename) if err != nil { firstErrOnce.Do(func() { @@ -1033,24 +1020,36 @@ func ImportPathToAssumedName(importPath string) string { // gopathResolver implements resolver for GOPATH workspaces. type gopathResolver struct { - env *ProcessEnv - cache *dirInfoCache + env *ProcessEnv + walked bool + cache *dirInfoCache + scanSema chan struct{} // scanSema prevents concurrent scans. } -func (r *gopathResolver) init() { - if r.cache == nil { - r.cache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, - } +func newGopathResolver(env *ProcessEnv) *gopathResolver { + r := &gopathResolver{ + env: env, + cache: &dirInfoCache{ + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, + }, + scanSema: make(chan struct{}, 1), } + r.scanSema <- struct{}{} + return r } func (r *gopathResolver) ClearForNewScan() { - r.cache = nil + <-r.scanSema + r.cache = &dirInfoCache{ + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, + } + r.walked = false + r.scanSema <- struct{}{} } func (r *gopathResolver) loadPackageNames(importPaths []string, srcDir string) (map[string]string, error) { - r.init() names := map[string]string{} for _, path := range importPaths { names[path] = importPathToName(r.env, path, srcDir) @@ -1130,7 +1129,6 @@ func packageDirToName(dir string) (packageName string, err error) { } type pkg struct { - goPackage *packages.Package dir string // absolute file path to pkg directory ("/usr/lib/go/src/net/http") importPathShort string // vendorless import path ("net/http", "a/b") packageName string // package name loaded from source if requested @@ -1178,8 +1176,7 @@ func distance(basepath, targetpath string) int { return strings.Count(p, string(filepath.Separator)) + 1 } -func (r *gopathResolver) scan(_ references, loadNames bool, exclude []gopathwalk.RootType) ([]*pkg, error) { - r.init() +func (r *gopathResolver) scan(ctx context.Context, callback *scanCallback) error { add := func(root gopathwalk.Root, dir string) { // We assume cached directories have not changed. We can skip them and their // children. @@ -1196,56 +1193,84 @@ func (r *gopathResolver) scan(_ references, loadNames bool, exclude []gopathwalk } r.cache.Store(dir, info) } - roots := filterRoots(gopathwalk.SrcDirsRoots(r.env.buildContext()), exclude) - gopathwalk.Walk(roots, add, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: false}) - var result []*pkg - for _, dir := range r.cache.Keys() { - info, ok := r.cache.Load(dir) - if !ok { - continue - } - if loadNames { - var err error - info, err = r.cache.CachePackageName(info) - if err != nil { - continue - } + processDir := func(info directoryPackageInfo) { + // Skip this directory if we were not able to get the package information successfully. + if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { + return } p := &pkg{ importPathShort: info.nonCanonicalImportPath, - dir: dir, - relevance: 1, - packageName: info.packageName, + dir: info.dir, + relevance: MaxRelevance - 1, } if info.rootType == gopathwalk.RootGOROOT { - p.relevance = 0 + p.relevance = MaxRelevance + } + + if !callback.dirFound(p) { + return + } + var err error + p.packageName, err = r.cache.CachePackageName(info) + if err != nil { + return + } + + if !callback.packageNameLoaded(p) { + return + } + if _, exports, err := r.loadExports(ctx, p, false); err == nil { + callback.exportsLoaded(p, exports) } - result = append(result, p) } - return result, nil + stop := r.cache.ScanAndListen(ctx, processDir) + defer stop() + // The callback is not necessarily safe to use in the goroutine below. Process roots eagerly. + roots := filterRoots(gopathwalk.SrcDirsRoots(r.env.buildContext()), callback.rootFound) + // We can't cancel walks, because we need them to finish to have a usable + // cache. Instead, run them in a separate goroutine and detach. + scanDone := make(chan struct{}) + go func() { + select { + case <-ctx.Done(): + return + case <-r.scanSema: + } + defer func() { r.scanSema <- struct{}{} }() + gopathwalk.Walk(roots, add, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: false}) + close(scanDone) + }() + select { + case <-ctx.Done(): + case <-scanDone: + } + return nil } -func filterRoots(roots []gopathwalk.Root, exclude []gopathwalk.RootType) []gopathwalk.Root { +func (r *gopathResolver) scoreImportPath(ctx context.Context, path string) int { + if _, ok := stdlib[path]; ok { + return MaxRelevance + } + return MaxRelevance - 1 +} + +func filterRoots(roots []gopathwalk.Root, include func(gopathwalk.Root) bool) []gopathwalk.Root { var result []gopathwalk.Root -outer: for _, root := range roots { - for _, i := range exclude { - if i == root.Type { - continue outer - } + if !include(root) { + continue } result = append(result, root) } return result } -func (r *gopathResolver) loadExports(ctx context.Context, pkg *pkg) (string, []string, error) { - r.init() - if info, ok := r.cache.Load(pkg.dir); ok { +func (r *gopathResolver) loadExports(ctx context.Context, pkg *pkg, includeTest bool) (string, []string, error) { + if info, ok := r.cache.Load(pkg.dir); ok && !includeTest { return r.cache.CacheExports(ctx, r.env, info) } - return loadExportsFromFiles(ctx, r.env, pkg.dir) + return loadExportsFromFiles(ctx, r.env, pkg.dir, includeTest) } // VendorlessPath returns the devendorized version of the import path ipath. @@ -1261,7 +1286,7 @@ func VendorlessPath(ipath string) string { return ipath } -func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (string, []string, error) { +func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string, includeTest bool) (string, []string, error) { var exports []string // Look for non-test, buildable .go files which could provide exports. @@ -1272,7 +1297,7 @@ func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (str var files []os.FileInfo for _, fi := range all { name := fi.Name() - if !strings.HasSuffix(name, ".go") || strings.HasSuffix(name, "_test.go") { + if !strings.HasSuffix(name, ".go") || (!includeTest && strings.HasSuffix(name, "_test.go")) { continue } match, err := env.buildContext().MatchFile(dir, fi.Name()) @@ -1305,6 +1330,10 @@ func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (str // handled by MatchFile above. continue } + if includeTest && strings.HasSuffix(f.Name.Name, "_test") { + // x_test package. We want internal test files only. + continue + } pkgName = f.Name.Name for name := range f.Scope.Objects { if ast.IsExported(name) { @@ -1323,29 +1352,7 @@ func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (str // findImport searches for a package with the given symbols. // If no package is found, findImport returns ("", false, nil) -func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, symbols map[string]bool, filename string) (*pkg, error) { - pkgDir, err := filepath.Abs(filename) - if err != nil { - return nil, err - } - pkgDir = filepath.Dir(pkgDir) - - // Find candidate packages, looking only at their directory names first. - var candidates []pkgDistance - for _, pkg := range dirScan { - if pkg.dir == pkgDir && pass.f.Name.Name == pkgName { - // The candidate is in the same directory and has the - // same package name. Don't try to import ourselves. - continue - } - if pkgIsCandidate(filename, pkgName, pkg) { - candidates = append(candidates, pkgDistance{ - pkg: pkg, - distance: distance(pkgDir, pkg.dir), - }) - } - } - +func findImport(ctx context.Context, pass *pass, candidates []pkgDistance, pkgName string, symbols map[string]bool, filename string) (*pkg, error) { // Sort the candidates by their import package length, // assuming that shorter package names are better than long // ones. Note that this sorts by the de-vendored name, so @@ -1358,7 +1365,6 @@ func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, } // Collect exports for packages with matching names. - rescv := make([]chan *pkg, len(candidates)) for i := range candidates { rescv[i] = make(chan *pkg, 1) @@ -1393,7 +1399,9 @@ func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, if pass.env.Debug { pass.env.Logf("loading exports in dir %s (seeking package %s)", c.pkg.dir, pkgName) } - exports, err := loadExportsForPackage(ctx, pass.env, pkgName, c.pkg) + // If we're an x_test, load the package under test's test variant. + includeTest := strings.HasSuffix(pass.f.Name.Name, "_test") && c.pkg.dir == pass.srcDir + _, exports, err := pass.env.GetResolver().loadExports(ctx, c.pkg, includeTest) if err != nil { if pass.env.Debug { pass.env.Logf("loading exports in dir %s (seeking package %s): %v", c.pkg.dir, pkgName, err) @@ -1430,17 +1438,6 @@ func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, return nil, nil } -func loadExportsForPackage(ctx context.Context, env *ProcessEnv, expectPkg string, pkg *pkg) ([]string, error) { - pkgName, exports, err := env.GetResolver().loadExports(ctx, pkg) - if err != nil { - return nil, err - } - if expectPkg != pkgName { - return nil, fmt.Errorf("dir %v is package %v, wanted %v", pkg.dir, pkgName, expectPkg) - } - return exports, err -} - // pkgIsCandidate reports whether pkg is a candidate for satisfying the // finding which package pkgIdent in the file named by filename is trying // to refer to. @@ -1453,7 +1450,7 @@ func loadExportsForPackage(ctx context.Context, env *ProcessEnv, expectPkg strin // filename is the file being formatted. // pkgIdent is the package being searched for, like "client" (if // searching for "client.New") -func pkgIsCandidate(filename, pkgIdent string, pkg *pkg) bool { +func pkgIsCandidate(filename string, refs references, pkg *pkg) bool { // Check "internal" and "vendor" visibility: if !canUse(filename, pkg.dir) { return false @@ -1471,17 +1468,18 @@ func pkgIsCandidate(filename, pkgIdent string, pkg *pkg) bool { // "bar", which is strongly discouraged // anyway. There's no reason goimports needs // to be slow just to accommodate that. - lastTwo := lastTwoComponents(pkg.importPathShort) - if strings.Contains(lastTwo, pkgIdent) { - return true - } - if hasHyphenOrUpperASCII(lastTwo) && !hasHyphenOrUpperASCII(pkgIdent) { - lastTwo = lowerASCIIAndRemoveHyphen(lastTwo) + for pkgIdent := range refs { + lastTwo := lastTwoComponents(pkg.importPathShort) if strings.Contains(lastTwo, pkgIdent) { return true } + if hasHyphenOrUpperASCII(lastTwo) && !hasHyphenOrUpperASCII(pkgIdent) { + lastTwo = lowerASCIIAndRemoveHyphen(lastTwo) + if strings.Contains(lastTwo, pkgIdent) { + return true + } + } } - return false } diff --git a/vendor/golang.org/x/tools/internal/imports/imports.go b/vendor/golang.org/x/tools/internal/imports/imports.go index e066d909e..2e7a317e5 100644 --- a/vendor/golang.org/x/tools/internal/imports/imports.go +++ b/vendor/golang.org/x/tools/internal/imports/imports.go @@ -11,6 +11,7 @@ package imports import ( "bufio" "bytes" + "context" "fmt" "go/ast" "go/build" @@ -21,6 +22,7 @@ import ( "io" "io/ioutil" "log" + "os" "regexp" "strconv" "strings" @@ -114,23 +116,23 @@ func ApplyFixes(fixes []*ImportFix, filename string, src []byte, opt *Options, e return formatFile(fileSet, file, src, nil, opt) } -// GetAllCandidates gets all of the standard library candidate packages to import in -// sorted order on import path. -func GetAllCandidates(filename string, opt *Options) (pkgs []ImportFix, err error) { - _, opt, err = initialize(filename, nil, opt) +// GetAllCandidates gets all of the packages starting with prefix that can be +// imported by filename, sorted by import path. +func GetAllCandidates(ctx context.Context, callback func(ImportFix), searchPrefix, filename, filePkg string, opt *Options) error { + _, opt, err := initialize(filename, []byte{}, opt) if err != nil { - return nil, err + return err } - return getAllCandidates(filename, opt.Env) + return getAllCandidates(ctx, callback, searchPrefix, filename, filePkg, opt.Env) } // GetPackageExports returns all known packages with name pkg and their exports. -func GetPackageExports(pkg, filename string, opt *Options) (exports []PackageExport, err error) { - _, opt, err = initialize(filename, nil, opt) +func GetPackageExports(ctx context.Context, callback func(PackageExport), searchPkg, filename, filePkg string, opt *Options) error { + _, opt, err := initialize(filename, []byte{}, opt) if err != nil { - return nil, err + return err } - return getPackageExports(pkg, filename, opt.Env) + return getPackageExports(ctx, callback, searchPkg, filename, filePkg, opt.Env) } // initialize sets the values for opt and src. @@ -145,8 +147,12 @@ func initialize(filename string, src []byte, opt *Options) ([]byte, *Options, er // Set the env if the user has not provided it. if opt.Env == nil { opt.Env = &ProcessEnv{ - GOPATH: build.Default.GOPATH, - GOROOT: build.Default.GOROOT, + GOPATH: build.Default.GOPATH, + GOROOT: build.Default.GOROOT, + GOFLAGS: os.Getenv("GOFLAGS"), + GO111MODULE: os.Getenv("GO111MODULE"), + GOPROXY: os.Getenv("GOPROXY"), + GOSUMDB: os.Getenv("GOSUMDB"), } } diff --git a/vendor/golang.org/x/tools/internal/imports/mod.go b/vendor/golang.org/x/tools/internal/imports/mod.go index 0f9b87eb7..28d4b1ff3 100644 --- a/vendor/golang.org/x/tools/internal/imports/mod.go +++ b/vendor/golang.org/x/tools/internal/imports/mod.go @@ -13,11 +13,10 @@ import ( "sort" "strconv" "strings" - "sync" + "golang.org/x/mod/module" + "golang.org/x/mod/semver" "golang.org/x/tools/internal/gopathwalk" - "golang.org/x/tools/internal/module" - "golang.org/x/tools/internal/semver" ) // ModuleResolver implements resolver for modules using the go command as little @@ -26,11 +25,14 @@ type ModuleResolver struct { env *ProcessEnv moduleCacheDir string dummyVendorMod *ModuleJSON // If vendoring is enabled, the pseudo-module that represents the /vendor directory. + roots []gopathwalk.Root + scanSema chan struct{} // scanSema prevents concurrent scans and guards scannedRoots. + scannedRoots map[gopathwalk.Root]bool - Initialized bool - Main *ModuleJSON - ModsByModPath []*ModuleJSON // All modules, ordered by # of path components in module Path... - ModsByDir []*ModuleJSON // ...or Dir. + initialized bool + main *ModuleJSON + modsByModPath []*ModuleJSON // All modules, ordered by # of path components in module Path... + modsByDir []*ModuleJSON // ...or Dir. // moduleCacheCache stores information about the module cache. moduleCacheCache *dirInfoCache @@ -41,13 +43,23 @@ type ModuleJSON struct { Path string // module path Replace *ModuleJSON // replaced by this module Main bool // is this the main module? + Indirect bool // is this module only an indirect dependency of main module? Dir string // directory holding files for this module, if any GoMod string // path to go.mod file for this module, if any GoVersion string // go version used in module } +func newModuleResolver(e *ProcessEnv) *ModuleResolver { + r := &ModuleResolver{ + env: e, + scanSema: make(chan struct{}, 1), + } + r.scanSema <- struct{}{} + return r +} + func (r *ModuleResolver) init() error { - if r.Initialized { + if r.initialized { return nil } mainMod, vendorEnabled, err := vendorEnabled(r.env) @@ -58,13 +70,13 @@ func (r *ModuleResolver) init() error { if mainMod != nil && vendorEnabled { // Vendor mode is on, so all the non-Main modules are irrelevant, // and we need to search /vendor for everything. - r.Main = mainMod + r.main = mainMod r.dummyVendorMod = &ModuleJSON{ Path: "", Dir: filepath.Join(mainMod.Dir, "vendor"), } - r.ModsByModPath = []*ModuleJSON{mainMod, r.dummyVendorMod} - r.ModsByDir = []*ModuleJSON{mainMod, r.dummyVendorMod} + r.modsByModPath = []*ModuleJSON{mainMod, r.dummyVendorMod} + r.modsByDir = []*ModuleJSON{mainMod, r.dummyVendorMod} } else { // Vendor mode is off, so run go list -m ... to find everything. r.initAllMods() @@ -72,35 +84,69 @@ func (r *ModuleResolver) init() error { r.moduleCacheDir = filepath.Join(filepath.SplitList(r.env.GOPATH)[0], "/pkg/mod") - sort.Slice(r.ModsByModPath, func(i, j int) bool { + sort.Slice(r.modsByModPath, func(i, j int) bool { count := func(x int) int { - return strings.Count(r.ModsByModPath[x].Path, "/") + return strings.Count(r.modsByModPath[x].Path, "/") } return count(j) < count(i) // descending order }) - sort.Slice(r.ModsByDir, func(i, j int) bool { + sort.Slice(r.modsByDir, func(i, j int) bool { count := func(x int) int { - return strings.Count(r.ModsByDir[x].Dir, "/") + return strings.Count(r.modsByDir[x].Dir, "/") } return count(j) < count(i) // descending order }) + r.roots = []gopathwalk.Root{ + {filepath.Join(r.env.GOROOT, "/src"), gopathwalk.RootGOROOT}, + } + if r.main != nil { + r.roots = append(r.roots, gopathwalk.Root{r.main.Dir, gopathwalk.RootCurrentModule}) + } + if vendorEnabled { + r.roots = append(r.roots, gopathwalk.Root{r.dummyVendorMod.Dir, gopathwalk.RootOther}) + } else { + addDep := func(mod *ModuleJSON) { + if mod.Replace == nil { + // This is redundant with the cache, but we'll skip it cheaply enough. + r.roots = append(r.roots, gopathwalk.Root{mod.Dir, gopathwalk.RootModuleCache}) + } else { + r.roots = append(r.roots, gopathwalk.Root{mod.Dir, gopathwalk.RootOther}) + } + } + // Walk dependent modules before scanning the full mod cache, direct deps first. + for _, mod := range r.modsByModPath { + if !mod.Indirect && !mod.Main { + addDep(mod) + } + } + for _, mod := range r.modsByModPath { + if mod.Indirect && !mod.Main { + addDep(mod) + } + } + r.roots = append(r.roots, gopathwalk.Root{r.moduleCacheDir, gopathwalk.RootModuleCache}) + } + + r.scannedRoots = map[gopathwalk.Root]bool{} if r.moduleCacheCache == nil { r.moduleCacheCache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, } } if r.otherCache == nil { r.otherCache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, } } - r.Initialized = true + r.initialized = true return nil } func (r *ModuleResolver) initAllMods() error { - stdout, err := r.env.invokeGo("list", "-m", "-json", "...") + stdout, err := r.env.invokeGo(context.TODO(), "list", "-m", "-json", "...") if err != nil { return err } @@ -116,27 +162,37 @@ func (r *ModuleResolver) initAllMods() error { // Can't do anything with a module that's not downloaded. continue } - r.ModsByModPath = append(r.ModsByModPath, mod) - r.ModsByDir = append(r.ModsByDir, mod) + // golang/go#36193: the go command doesn't always clean paths. + mod.Dir = filepath.Clean(mod.Dir) + r.modsByModPath = append(r.modsByModPath, mod) + r.modsByDir = append(r.modsByDir, mod) if mod.Main { - r.Main = mod + r.main = mod } } return nil } func (r *ModuleResolver) ClearForNewScan() { + <-r.scanSema + r.scannedRoots = map[gopathwalk.Root]bool{} r.otherCache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, } + r.scanSema <- struct{}{} } func (r *ModuleResolver) ClearForNewMod() { - env := r.env + <-r.scanSema *r = ModuleResolver{ - env: env, + env: r.env, + moduleCacheCache: r.moduleCacheCache, + otherCache: r.otherCache, + scanSema: r.scanSema, } r.init() + r.scanSema <- struct{}{} } // findPackage returns the module and directory that contains the package at @@ -144,7 +200,7 @@ func (r *ModuleResolver) ClearForNewMod() { func (r *ModuleResolver) findPackage(importPath string) (*ModuleJSON, string) { // This can't find packages in the stdlib, but that's harmless for all // the existing code paths. - for _, m := range r.ModsByModPath { + for _, m := range r.modsByModPath { if !strings.HasPrefix(importPath, m.Path) { continue } @@ -211,7 +267,7 @@ func (r *ModuleResolver) cacheKeys() []string { } // cachePackageName caches the package name for a dir already in the cache. -func (r *ModuleResolver) cachePackageName(info directoryPackageInfo) (directoryPackageInfo, error) { +func (r *ModuleResolver) cachePackageName(info directoryPackageInfo) (string, error) { if info.rootType == gopathwalk.RootModuleCache { return r.moduleCacheCache.CachePackageName(info) } @@ -238,7 +294,7 @@ func (r *ModuleResolver) findModuleByDir(dir string) *ModuleJSON { // - in /vendor/ in -mod=vendor mode. // - nested module? Dunno. // Rumor has it that replace targets cannot contain other replace targets. - for _, m := range r.ModsByDir { + for _, m := range r.modsByDir { if !strings.HasPrefix(dir, m.Dir) { continue } @@ -333,41 +389,49 @@ func (r *ModuleResolver) loadPackageNames(importPaths []string, srcDir string) ( return names, nil } -func (r *ModuleResolver) scan(_ references, loadNames bool, exclude []gopathwalk.RootType) ([]*pkg, error) { +func (r *ModuleResolver) scan(ctx context.Context, callback *scanCallback) error { if err := r.init(); err != nil { - return nil, err + return err } - // Walk GOROOT, GOPATH/pkg/mod, and the main module. - roots := []gopathwalk.Root{ - {filepath.Join(r.env.GOROOT, "/src"), gopathwalk.RootGOROOT}, - } - if r.Main != nil { - roots = append(roots, gopathwalk.Root{r.Main.Dir, gopathwalk.RootCurrentModule}) - } - if r.dummyVendorMod != nil { - roots = append(roots, gopathwalk.Root{r.dummyVendorMod.Dir, gopathwalk.RootOther}) - } else { - roots = append(roots, gopathwalk.Root{r.moduleCacheDir, gopathwalk.RootModuleCache}) - // Walk replace targets, just in case they're not in any of the above. - for _, mod := range r.ModsByModPath { - if mod.Replace != nil { - roots = append(roots, gopathwalk.Root{mod.Dir, gopathwalk.RootOther}) - } + processDir := func(info directoryPackageInfo) { + // Skip this directory if we were not able to get the package information successfully. + if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { + return } + pkg, err := r.canonicalize(info) + if err != nil { + return + } + + if !callback.dirFound(pkg) { + return + } + pkg.packageName, err = r.cachePackageName(info) + if err != nil { + return + } + + if !callback.packageNameLoaded(pkg) { + return + } + _, exports, err := r.loadExports(ctx, pkg, false) + if err != nil { + return + } + callback.exportsLoaded(pkg, exports) } - roots = filterRoots(roots, exclude) + // Start processing everything in the cache, and listen for the new stuff + // we discover in the walk below. + stop1 := r.moduleCacheCache.ScanAndListen(ctx, processDir) + defer stop1() + stop2 := r.otherCache.ScanAndListen(ctx, processDir) + defer stop2() - var result []*pkg - var mu sync.Mutex - - // We assume cached directories have not changed. We can skip them and their - // children. + // We assume cached directories are fully cached, including all their + // children, and have not changed. We can skip them. skip := func(root gopathwalk.Root, dir string) bool { - mu.Lock() - defer mu.Unlock() - info, ok := r.cacheLoad(dir) if !ok { return false @@ -379,44 +443,64 @@ func (r *ModuleResolver) scan(_ references, loadNames bool, exclude []gopathwalk return packageScanned } - // Add anything new to the cache. We'll process everything in it below. + // Add anything new to the cache, and process it if we're still listening. add := func(root gopathwalk.Root, dir string) { - mu.Lock() - defer mu.Unlock() - r.cacheStore(r.scanDirForPackage(root, dir)) } - gopathwalk.WalkSkip(roots, add, skip, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: true}) - - // Everything we already had, and everything new, is now in the cache. - for _, dir := range r.cacheKeys() { - info, ok := r.cacheLoad(dir) - if !ok { - continue + // r.roots and the callback are not necessarily safe to use in the + // goroutine below. Process them eagerly. + roots := filterRoots(r.roots, callback.rootFound) + // We can't cancel walks, because we need them to finish to have a usable + // cache. Instead, run them in a separate goroutine and detach. + scanDone := make(chan struct{}) + go func() { + select { + case <-ctx.Done(): + return + case <-r.scanSema: } + defer func() { r.scanSema <- struct{}{} }() + // We have the lock on r.scannedRoots, and no other scans can run. + for _, root := range roots { + if ctx.Err() != nil { + return + } - // Skip this directory if we were not able to get the package information successfully. - if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { - continue - } - - // If we want package names, make sure the cache has them. - if loadNames { - var err error - if info, err = r.cachePackageName(info); err != nil { + if r.scannedRoots[root] { continue } + gopathwalk.WalkSkip([]gopathwalk.Root{root}, add, skip, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: true}) + r.scannedRoots[root] = true } - - res, err := r.canonicalize(info) - if err != nil { - continue - } - result = append(result, res) + close(scanDone) + }() + select { + case <-ctx.Done(): + case <-scanDone: } + return nil +} - return result, nil +func (r *ModuleResolver) scoreImportPath(ctx context.Context, path string) int { + if _, ok := stdlib[path]; ok { + return MaxRelevance + } + mod, _ := r.findPackage(path) + return modRelevance(mod) +} + +func modRelevance(mod *ModuleJSON) int { + switch { + case mod == nil: // out of scope + return MaxRelevance - 4 + case mod.Indirect: + return MaxRelevance - 3 + case !mod.Main: + return MaxRelevance - 2 + default: + return MaxRelevance - 1 // main module ties with stdlib + } } // canonicalize gets the result of canonicalizing the packages using the results @@ -428,15 +512,14 @@ func (r *ModuleResolver) canonicalize(info directoryPackageInfo) (*pkg, error) { importPathShort: info.nonCanonicalImportPath, dir: info.dir, packageName: path.Base(info.nonCanonicalImportPath), - relevance: 0, + relevance: MaxRelevance, }, nil } importPath := info.nonCanonicalImportPath - relevance := 2 + mod := r.findModuleByDir(info.dir) // Check if the directory is underneath a module that's in scope. - if mod := r.findModuleByDir(info.dir); mod != nil { - relevance = 1 + if mod != nil { // It is. If dir is the target of a replace directive, // our guessed import path is wrong. Use the real one. if mod.Dir == info.dir { @@ -445,15 +528,16 @@ func (r *ModuleResolver) canonicalize(info directoryPackageInfo) (*pkg, error) { dirInMod := info.dir[len(mod.Dir)+len("/"):] importPath = path.Join(mod.Path, filepath.ToSlash(dirInMod)) } - } else if info.needsReplace { + } else if !strings.HasPrefix(importPath, info.moduleName) { + // The module's name doesn't match the package's import path. It + // probably needs a replace directive we don't have. return nil, fmt.Errorf("package in %q is not valid without a replace statement", info.dir) } res := &pkg{ importPathShort: importPath, dir: info.dir, - packageName: info.packageName, // may not be populated if the caller didn't ask for it - relevance: relevance, + relevance: modRelevance(mod), } // We may have discovered a package that has a different version // in scope already. Canonicalize to that one if possible. @@ -463,14 +547,14 @@ func (r *ModuleResolver) canonicalize(info directoryPackageInfo) (*pkg, error) { return res, nil } -func (r *ModuleResolver) loadExports(ctx context.Context, pkg *pkg) (string, []string, error) { +func (r *ModuleResolver) loadExports(ctx context.Context, pkg *pkg, includeTest bool) (string, []string, error) { if err := r.init(); err != nil { return "", nil, err } - if info, ok := r.cacheLoad(pkg.dir); ok { + if info, ok := r.cacheLoad(pkg.dir); ok && !includeTest { return r.cacheExports(ctx, r.env, info) } - return loadExportsFromFiles(ctx, r.env, pkg.dir) + return loadExportsFromFiles(ctx, r.env, pkg.dir, includeTest) } func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) directoryPackageInfo { @@ -488,7 +572,7 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir } switch root.Type { case gopathwalk.RootCurrentModule: - importPath = path.Join(r.Main.Path, filepath.ToSlash(subdir)) + importPath = path.Join(r.main.Path, filepath.ToSlash(subdir)) case gopathwalk.RootModuleCache: matches := modCacheRegexp.FindStringSubmatch(subdir) if len(matches) == 0 { @@ -497,7 +581,7 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir err: fmt.Errorf("invalid module cache path: %v", subdir), } } - modPath, err := module.DecodePath(filepath.ToSlash(matches[1])) + modPath, err := module.UnescapePath(filepath.ToSlash(matches[1])) if err != nil { if r.env.Debug { r.env.Logf("decoding module cache path %q: %v", subdir, err) @@ -516,7 +600,6 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir dir: dir, rootType: root.Type, nonCanonicalImportPath: importPath, - needsReplace: false, moduleDir: modDir, moduleName: modName, } @@ -524,14 +607,6 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir // stdlib packages are always in scope, despite the confusing go.mod return result } - // Check that this package is not obviously impossible to import. - if !strings.HasPrefix(importPath, modName) { - // The module's declared path does not match - // its expected path. It probably needs a - // replace directive we don't have. - result.needsReplace = true - } - return result } @@ -624,7 +699,7 @@ func getMainModuleAnd114(env *ProcessEnv) (*ModuleJSON, bool, error) { {{.GoVersion}} {{range context.ReleaseTags}}{{if eq . "go1.14"}}{{.}}{{end}}{{end}} ` - stdout, err := env.invokeGo("list", "-m", "-f", format) + stdout, err := env.invokeGo(context.TODO(), "list", "-m", "-f", format) if err != nil { return nil, false, nil } diff --git a/vendor/golang.org/x/tools/internal/imports/mod_cache.go b/vendor/golang.org/x/tools/internal/imports/mod_cache.go index f6b070a3f..5b4f03acc 100644 --- a/vendor/golang.org/x/tools/internal/imports/mod_cache.go +++ b/vendor/golang.org/x/tools/internal/imports/mod_cache.go @@ -49,10 +49,6 @@ type directoryPackageInfo struct { // nonCanonicalImportPath is the package's expected import path. It may // not actually be importable at that path. nonCanonicalImportPath string - // needsReplace is true if the nonCanonicalImportPath does not match the - // module's declared path, making it impossible to import without a - // replace directive. - needsReplace bool // Module-related information. moduleDir string // The directory that is the module root of this dir. @@ -97,15 +93,86 @@ func (info *directoryPackageInfo) reachedStatus(target directoryPackageStatus) ( type dirInfoCache struct { mu sync.Mutex // dirs stores information about packages in directories, keyed by absolute path. - dirs map[string]*directoryPackageInfo + dirs map[string]*directoryPackageInfo + listeners map[*int]cacheListener +} + +type cacheListener func(directoryPackageInfo) + +// ScanAndListen calls listener on all the items in the cache, and on anything +// newly added. The returned stop function waits for all in-flight callbacks to +// finish and blocks new ones. +func (d *dirInfoCache) ScanAndListen(ctx context.Context, listener cacheListener) func() { + ctx, cancel := context.WithCancel(ctx) + + // Flushing out all the callbacks is tricky without knowing how many there + // are going to be. Setting an arbitrary limit makes it much easier. + const maxInFlight = 10 + sema := make(chan struct{}, maxInFlight) + for i := 0; i < maxInFlight; i++ { + sema <- struct{}{} + } + + cookie := new(int) // A unique ID we can use for the listener. + + // We can't hold mu while calling the listener. + d.mu.Lock() + var keys []string + for key := range d.dirs { + keys = append(keys, key) + } + d.listeners[cookie] = func(info directoryPackageInfo) { + select { + case <-ctx.Done(): + return + case <-sema: + } + listener(info) + sema <- struct{}{} + } + d.mu.Unlock() + + stop := func() { + cancel() + d.mu.Lock() + delete(d.listeners, cookie) + d.mu.Unlock() + for i := 0; i < maxInFlight; i++ { + <-sema + } + } + + // Process the pre-existing keys. + for _, k := range keys { + select { + case <-ctx.Done(): + return stop + default: + } + if v, ok := d.Load(k); ok { + listener(v) + } + } + + return stop } // Store stores the package info for dir. func (d *dirInfoCache) Store(dir string, info directoryPackageInfo) { d.mu.Lock() - defer d.mu.Unlock() - stored := info // defensive copy - d.dirs[dir] = &stored + _, old := d.dirs[dir] + d.dirs[dir] = &info + var listeners []cacheListener + for _, l := range d.listeners { + listeners = append(listeners, l) + } + d.mu.Unlock() + + if !old { + for _, l := range listeners { + l(info) + } + } } // Load returns a copy of the directoryPackageInfo for absolute directory dir. @@ -129,17 +196,17 @@ func (d *dirInfoCache) Keys() (keys []string) { return keys } -func (d *dirInfoCache) CachePackageName(info directoryPackageInfo) (directoryPackageInfo, error) { +func (d *dirInfoCache) CachePackageName(info directoryPackageInfo) (string, error) { if loaded, err := info.reachedStatus(nameLoaded); loaded { - return info, err + return info.packageName, err } if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { - return info, fmt.Errorf("cannot read package name, scan error: %v", err) + return "", fmt.Errorf("cannot read package name, scan error: %v", err) } info.packageName, info.err = packageDirToName(info.dir) info.status = nameLoaded d.Store(info.dir, info) - return info, info.err + return info.packageName, info.err } func (d *dirInfoCache) CacheExports(ctx context.Context, env *ProcessEnv, info directoryPackageInfo) (string, []string, error) { @@ -149,8 +216,8 @@ func (d *dirInfoCache) CacheExports(ctx context.Context, env *ProcessEnv, info d if reached, err := info.reachedStatus(nameLoaded); reached && err != nil { return "", nil, err } - info.packageName, info.exports, info.err = loadExportsFromFiles(ctx, env, info.dir) - if info.err == context.Canceled { + info.packageName, info.exports, info.err = loadExportsFromFiles(ctx, env, info.dir, false) + if info.err == context.Canceled || info.err == context.DeadlineExceeded { return info.packageName, info.exports, info.err } // The cache structure wants things to proceed linearly. We can skip a diff --git a/vendor/golang.org/x/tools/internal/packagesinternal/packages.go b/vendor/golang.org/x/tools/internal/packagesinternal/packages.go new file mode 100644 index 000000000..b13ce33a3 --- /dev/null +++ b/vendor/golang.org/x/tools/internal/packagesinternal/packages.go @@ -0,0 +1,27 @@ +// Package packagesinternal exposes internal-only fields from go/packages. +package packagesinternal + +import "time" + +// Fields must match go list; +type Module struct { + Path string // module path + Version string // module version + Versions []string // available module versions (with -versions) + Replace *Module // replaced by this module + Time *time.Time // time version was created + Update *Module // available update, if any (with -u) + Main bool // is this the main module? + Indirect bool // is this module only an indirect dependency of main module? + Dir string // directory holding files for this module, if any + GoMod string // path to go.mod file used when loading this module, if any + GoVersion string // go version used in module + Error *ModuleError // error loading module +} +type ModuleError struct { + Err string // the error itself +} + +var GetForTest = func(p interface{}) string { return "" } + +var GetModule = func(p interface{}) *Module { return nil } diff --git a/vendor/golang.org/x/xerrors/LICENSE b/vendor/golang.org/x/xerrors/LICENSE new file mode 100644 index 000000000..e4a47e17f --- /dev/null +++ b/vendor/golang.org/x/xerrors/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2019 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/xerrors/PATENTS b/vendor/golang.org/x/xerrors/PATENTS new file mode 100644 index 000000000..733099041 --- /dev/null +++ b/vendor/golang.org/x/xerrors/PATENTS @@ -0,0 +1,22 @@ +Additional IP Rights Grant (Patents) + +"This implementation" means the copyrightable works distributed by +Google as part of the Go project. + +Google hereby grants to You a perpetual, worldwide, non-exclusive, +no-charge, royalty-free, irrevocable (except as stated in this section) +patent license to make, have made, use, offer to sell, sell, import, +transfer and otherwise run, modify and propagate the contents of this +implementation of Go, where such license applies only to those patent +claims, both currently owned or controlled by Google and acquired in +the future, licensable by Google that are necessarily infringed by this +implementation of Go. This grant does not include claims that would be +infringed only as a consequence of further modification of this +implementation. If you or your agent or exclusive licensee institute or +order or agree to the institution of patent litigation against any +entity (including a cross-claim or counterclaim in a lawsuit) alleging +that this implementation of Go or any code incorporated within this +implementation of Go constitutes direct or contributory patent +infringement, or inducement of patent infringement, then any patent +rights granted to you under this License for this implementation of Go +shall terminate as of the date such litigation is filed. diff --git a/vendor/golang.org/x/xerrors/README b/vendor/golang.org/x/xerrors/README new file mode 100644 index 000000000..aac7867a5 --- /dev/null +++ b/vendor/golang.org/x/xerrors/README @@ -0,0 +1,2 @@ +This repository holds the transition packages for the new Go 1.13 error values. +See golang.org/design/29934-error-values. diff --git a/vendor/golang.org/x/xerrors/adaptor.go b/vendor/golang.org/x/xerrors/adaptor.go new file mode 100644 index 000000000..4317f2483 --- /dev/null +++ b/vendor/golang.org/x/xerrors/adaptor.go @@ -0,0 +1,193 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package xerrors + +import ( + "bytes" + "fmt" + "io" + "reflect" + "strconv" +) + +// FormatError calls the FormatError method of f with an errors.Printer +// configured according to s and verb, and writes the result to s. +func FormatError(f Formatter, s fmt.State, verb rune) { + // Assuming this function is only called from the Format method, and given + // that FormatError takes precedence over Format, it cannot be called from + // any package that supports errors.Formatter. It is therefore safe to + // disregard that State may be a specific printer implementation and use one + // of our choice instead. + + // limitations: does not support printing error as Go struct. + + var ( + sep = " " // separator before next error + p = &state{State: s} + direct = true + ) + + var err error = f + + switch verb { + // Note that this switch must match the preference order + // for ordinary string printing (%#v before %+v, and so on). + + case 'v': + if s.Flag('#') { + if stringer, ok := err.(fmt.GoStringer); ok { + io.WriteString(&p.buf, stringer.GoString()) + goto exit + } + // proceed as if it were %v + } else if s.Flag('+') { + p.printDetail = true + sep = "\n - " + } + case 's': + case 'q', 'x', 'X': + // Use an intermediate buffer in the rare cases that precision, + // truncation, or one of the alternative verbs (q, x, and X) are + // specified. + direct = false + + default: + p.buf.WriteString("%!") + p.buf.WriteRune(verb) + p.buf.WriteByte('(') + switch { + case err != nil: + p.buf.WriteString(reflect.TypeOf(f).String()) + default: + p.buf.WriteString("") + } + p.buf.WriteByte(')') + io.Copy(s, &p.buf) + return + } + +loop: + for { + switch v := err.(type) { + case Formatter: + err = v.FormatError((*printer)(p)) + case fmt.Formatter: + v.Format(p, 'v') + break loop + default: + io.WriteString(&p.buf, v.Error()) + break loop + } + if err == nil { + break + } + if p.needColon || !p.printDetail { + p.buf.WriteByte(':') + p.needColon = false + } + p.buf.WriteString(sep) + p.inDetail = false + p.needNewline = false + } + +exit: + width, okW := s.Width() + prec, okP := s.Precision() + + if !direct || (okW && width > 0) || okP { + // Construct format string from State s. + format := []byte{'%'} + if s.Flag('-') { + format = append(format, '-') + } + if s.Flag('+') { + format = append(format, '+') + } + if s.Flag(' ') { + format = append(format, ' ') + } + if okW { + format = strconv.AppendInt(format, int64(width), 10) + } + if okP { + format = append(format, '.') + format = strconv.AppendInt(format, int64(prec), 10) + } + format = append(format, string(verb)...) + fmt.Fprintf(s, string(format), p.buf.String()) + } else { + io.Copy(s, &p.buf) + } +} + +var detailSep = []byte("\n ") + +// state tracks error printing state. It implements fmt.State. +type state struct { + fmt.State + buf bytes.Buffer + + printDetail bool + inDetail bool + needColon bool + needNewline bool +} + +func (s *state) Write(b []byte) (n int, err error) { + if s.printDetail { + if len(b) == 0 { + return 0, nil + } + if s.inDetail && s.needColon { + s.needNewline = true + if b[0] == '\n' { + b = b[1:] + } + } + k := 0 + for i, c := range b { + if s.needNewline { + if s.inDetail && s.needColon { + s.buf.WriteByte(':') + s.needColon = false + } + s.buf.Write(detailSep) + s.needNewline = false + } + if c == '\n' { + s.buf.Write(b[k:i]) + k = i + 1 + s.needNewline = true + } + } + s.buf.Write(b[k:]) + if !s.inDetail { + s.needColon = true + } + } else if !s.inDetail { + s.buf.Write(b) + } + return len(b), nil +} + +// printer wraps a state to implement an xerrors.Printer. +type printer state + +func (s *printer) Print(args ...interface{}) { + if !s.inDetail || s.printDetail { + fmt.Fprint((*state)(s), args...) + } +} + +func (s *printer) Printf(format string, args ...interface{}) { + if !s.inDetail || s.printDetail { + fmt.Fprintf((*state)(s), format, args...) + } +} + +func (s *printer) Detail() bool { + s.inDetail = true + return s.printDetail +} diff --git a/vendor/golang.org/x/xerrors/codereview.cfg b/vendor/golang.org/x/xerrors/codereview.cfg new file mode 100644 index 000000000..3f8b14b64 --- /dev/null +++ b/vendor/golang.org/x/xerrors/codereview.cfg @@ -0,0 +1 @@ +issuerepo: golang/go diff --git a/vendor/golang.org/x/xerrors/doc.go b/vendor/golang.org/x/xerrors/doc.go new file mode 100644 index 000000000..eef99d9d5 --- /dev/null +++ b/vendor/golang.org/x/xerrors/doc.go @@ -0,0 +1,22 @@ +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package xerrors implements functions to manipulate errors. +// +// This package is based on the Go 2 proposal for error values: +// https://golang.org/design/29934-error-values +// +// These functions were incorporated into the standard library's errors package +// in Go 1.13: +// - Is +// - As +// - Unwrap +// +// Also, Errorf's %w verb was incorporated into fmt.Errorf. +// +// Use this package to get equivalent behavior in all supported Go versions. +// +// No other features of this package were included in Go 1.13, and at present +// there are no plans to include any of them. +package xerrors // import "golang.org/x/xerrors" diff --git a/vendor/golang.org/x/xerrors/errors.go b/vendor/golang.org/x/xerrors/errors.go new file mode 100644 index 000000000..e88d3772d --- /dev/null +++ b/vendor/golang.org/x/xerrors/errors.go @@ -0,0 +1,33 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package xerrors + +import "fmt" + +// errorString is a trivial implementation of error. +type errorString struct { + s string + frame Frame +} + +// New returns an error that formats as the given text. +// +// The returned error contains a Frame set to the caller's location and +// implements Formatter to show this information when printed with details. +func New(text string) error { + return &errorString{text, Caller(1)} +} + +func (e *errorString) Error() string { + return e.s +} + +func (e *errorString) Format(s fmt.State, v rune) { FormatError(e, s, v) } + +func (e *errorString) FormatError(p Printer) (next error) { + p.Print(e.s) + e.frame.Format(p) + return nil +} diff --git a/vendor/golang.org/x/xerrors/fmt.go b/vendor/golang.org/x/xerrors/fmt.go new file mode 100644 index 000000000..74c1c93ec --- /dev/null +++ b/vendor/golang.org/x/xerrors/fmt.go @@ -0,0 +1,109 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package xerrors + +import ( + "fmt" + "strings" + + "golang.org/x/xerrors/internal" +) + +// Errorf formats according to a format specifier and returns the string as a +// value that satisfies error. +// +// The returned error includes the file and line number of the caller when +// formatted with additional detail enabled. If the last argument is an error +// the returned error's Format method will return it if the format string ends +// with ": %s", ": %v", or ": %w". If the last argument is an error and the +// format string ends with ": %w", the returned error implements Wrapper +// with an Unwrap method returning it. +func Errorf(format string, a ...interface{}) error { + err, wrap := lastError(format, a) + format = formatPlusW(format) + if err == nil { + return &noWrapError{fmt.Sprintf(format, a...), nil, Caller(1)} + } + + // TODO: this is not entirely correct. The error value could be + // printed elsewhere in format if it mixes numbered with unnumbered + // substitutions. With relatively small changes to doPrintf we can + // have it optionally ignore extra arguments and pass the argument + // list in its entirety. + msg := fmt.Sprintf(format[:len(format)-len(": %s")], a[:len(a)-1]...) + frame := Frame{} + if internal.EnableTrace { + frame = Caller(1) + } + if wrap { + return &wrapError{msg, err, frame} + } + return &noWrapError{msg, err, frame} +} + +// formatPlusW is used to avoid the vet check that will barf at %w. +func formatPlusW(s string) string { + return s +} + +func lastError(format string, a []interface{}) (err error, wrap bool) { + wrap = strings.HasSuffix(format, ": %w") + if !wrap && + !strings.HasSuffix(format, ": %s") && + !strings.HasSuffix(format, ": %v") { + return nil, false + } + + if len(a) == 0 { + return nil, false + } + + err, ok := a[len(a)-1].(error) + if !ok { + return nil, false + } + + return err, wrap +} + +type noWrapError struct { + msg string + err error + frame Frame +} + +func (e *noWrapError) Error() string { + return fmt.Sprint(e) +} + +func (e *noWrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) } + +func (e *noWrapError) FormatError(p Printer) (next error) { + p.Print(e.msg) + e.frame.Format(p) + return e.err +} + +type wrapError struct { + msg string + err error + frame Frame +} + +func (e *wrapError) Error() string { + return fmt.Sprint(e) +} + +func (e *wrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) } + +func (e *wrapError) FormatError(p Printer) (next error) { + p.Print(e.msg) + e.frame.Format(p) + return e.err +} + +func (e *wrapError) Unwrap() error { + return e.err +} diff --git a/vendor/golang.org/x/xerrors/format.go b/vendor/golang.org/x/xerrors/format.go new file mode 100644 index 000000000..1bc9c26b9 --- /dev/null +++ b/vendor/golang.org/x/xerrors/format.go @@ -0,0 +1,34 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package xerrors + +// A Formatter formats error messages. +type Formatter interface { + error + + // FormatError prints the receiver's first error and returns the next error in + // the error chain, if any. + FormatError(p Printer) (next error) +} + +// A Printer formats error messages. +// +// The most common implementation of Printer is the one provided by package fmt +// during Printf (as of Go 1.13). Localization packages such as golang.org/x/text/message +// typically provide their own implementations. +type Printer interface { + // Print appends args to the message output. + Print(args ...interface{}) + + // Printf writes a formatted string. + Printf(format string, args ...interface{}) + + // Detail reports whether error detail is requested. + // After the first call to Detail, all text written to the Printer + // is formatted as additional detail, or ignored when + // detail has not been requested. + // If Detail returns false, the caller can avoid printing the detail at all. + Detail() bool +} diff --git a/vendor/golang.org/x/xerrors/frame.go b/vendor/golang.org/x/xerrors/frame.go new file mode 100644 index 000000000..0de628ec5 --- /dev/null +++ b/vendor/golang.org/x/xerrors/frame.go @@ -0,0 +1,56 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package xerrors + +import ( + "runtime" +) + +// A Frame contains part of a call stack. +type Frame struct { + // Make room for three PCs: the one we were asked for, what it called, + // and possibly a PC for skipPleaseUseCallersFrames. See: + // https://go.googlesource.com/go/+/032678e0fb/src/runtime/extern.go#169 + frames [3]uintptr +} + +// Caller returns a Frame that describes a frame on the caller's stack. +// The argument skip is the number of frames to skip over. +// Caller(0) returns the frame for the caller of Caller. +func Caller(skip int) Frame { + var s Frame + runtime.Callers(skip+1, s.frames[:]) + return s +} + +// location reports the file, line, and function of a frame. +// +// The returned function may be "" even if file and line are not. +func (f Frame) location() (function, file string, line int) { + frames := runtime.CallersFrames(f.frames[:]) + if _, ok := frames.Next(); !ok { + return "", "", 0 + } + fr, ok := frames.Next() + if !ok { + return "", "", 0 + } + return fr.Function, fr.File, fr.Line +} + +// Format prints the stack as error detail. +// It should be called from an error's Format implementation +// after printing any other error detail. +func (f Frame) Format(p Printer) { + if p.Detail() { + function, file, line := f.location() + if function != "" { + p.Printf("%s\n ", function) + } + if file != "" { + p.Printf("%s:%d\n", file, line) + } + } +} diff --git a/vendor/golang.org/x/xerrors/go.mod b/vendor/golang.org/x/xerrors/go.mod new file mode 100644 index 000000000..870d4f612 --- /dev/null +++ b/vendor/golang.org/x/xerrors/go.mod @@ -0,0 +1,3 @@ +module golang.org/x/xerrors + +go 1.11 diff --git a/vendor/golang.org/x/xerrors/internal/internal.go b/vendor/golang.org/x/xerrors/internal/internal.go new file mode 100644 index 000000000..89f4eca5d --- /dev/null +++ b/vendor/golang.org/x/xerrors/internal/internal.go @@ -0,0 +1,8 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package internal + +// EnableTrace indicates whether stack information should be recorded in errors. +var EnableTrace = true diff --git a/vendor/golang.org/x/xerrors/wrap.go b/vendor/golang.org/x/xerrors/wrap.go new file mode 100644 index 000000000..9a3b51037 --- /dev/null +++ b/vendor/golang.org/x/xerrors/wrap.go @@ -0,0 +1,106 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package xerrors + +import ( + "reflect" +) + +// A Wrapper provides context around another error. +type Wrapper interface { + // Unwrap returns the next error in the error chain. + // If there is no next error, Unwrap returns nil. + Unwrap() error +} + +// Opaque returns an error with the same error formatting as err +// but that does not match err and cannot be unwrapped. +func Opaque(err error) error { + return noWrapper{err} +} + +type noWrapper struct { + error +} + +func (e noWrapper) FormatError(p Printer) (next error) { + if f, ok := e.error.(Formatter); ok { + return f.FormatError(p) + } + p.Print(e.error) + return nil +} + +// Unwrap returns the result of calling the Unwrap method on err, if err implements +// Unwrap. Otherwise, Unwrap returns nil. +func Unwrap(err error) error { + u, ok := err.(Wrapper) + if !ok { + return nil + } + return u.Unwrap() +} + +// Is reports whether any error in err's chain matches target. +// +// An error is considered to match a target if it is equal to that target or if +// it implements a method Is(error) bool such that Is(target) returns true. +func Is(err, target error) bool { + if target == nil { + return err == target + } + + isComparable := reflect.TypeOf(target).Comparable() + for { + if isComparable && err == target { + return true + } + if x, ok := err.(interface{ Is(error) bool }); ok && x.Is(target) { + return true + } + // TODO: consider supporing target.Is(err). This would allow + // user-definable predicates, but also may allow for coping with sloppy + // APIs, thereby making it easier to get away with them. + if err = Unwrap(err); err == nil { + return false + } + } +} + +// As finds the first error in err's chain that matches the type to which target +// points, and if so, sets the target to its value and returns true. An error +// matches a type if it is assignable to the target type, or if it has a method +// As(interface{}) bool such that As(target) returns true. As will panic if target +// is not a non-nil pointer to a type which implements error or is of interface type. +// +// The As method should set the target to its value and return true if err +// matches the type to which target points. +func As(err error, target interface{}) bool { + if target == nil { + panic("errors: target cannot be nil") + } + val := reflect.ValueOf(target) + typ := val.Type() + if typ.Kind() != reflect.Ptr || val.IsNil() { + panic("errors: target must be a non-nil pointer") + } + if e := typ.Elem(); e.Kind() != reflect.Interface && !e.Implements(errorType) { + panic("errors: *target must be interface or implement error") + } + targetType := typ.Elem() + for err != nil { + if reflect.TypeOf(err).AssignableTo(targetType) { + val.Elem().Set(reflect.ValueOf(err)) + return true + } + if x, ok := err.(interface{ As(interface{}) bool }); ok && x.As(target) { + return true + } + err = Unwrap(err) + } + return false +} + +var errorType = reflect.TypeOf((*error)(nil)).Elem() diff --git a/vendor/modules.txt b/vendor/modules.txt index 98ee2f9b1..fd2108874 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -46,6 +46,7 @@ gitea.com/macaron/session/redis ## explicit gitea.com/macaron/toolbox # github.com/BurntSushi/toml v0.3.1 +## explicit github.com/BurntSushi/toml # github.com/PuerkitoBio/goquery v1.5.0 ## explicit @@ -184,6 +185,10 @@ github.com/ethantkoenig/rupture ## explicit # github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 ## explicit +# github.com/fatih/color v1.9.0 +github.com/fatih/color +# github.com/fatih/structtag v1.2.0 +github.com/fatih/structtag # github.com/fsnotify/fsnotify v1.4.7 github.com/fsnotify/fsnotify # github.com/gliderlabs/ssh v0.2.2 @@ -445,11 +450,15 @@ github.com/markbates/goth/providers/nextcloud github.com/markbates/goth/providers/openidConnect github.com/markbates/goth/providers/twitter github.com/markbates/goth/providers/yandex -# github.com/mattn/go-isatty v0.0.7 +# github.com/mattn/go-colorable v0.1.4 +github.com/mattn/go-colorable +# github.com/mattn/go-isatty v0.0.11 ## explicit github.com/mattn/go-isatty # github.com/mattn/go-oci8 v0.0.0-20190320171441-14ba190cf52d ## explicit +# github.com/mattn/go-runewidth v0.0.7 +github.com/mattn/go-runewidth # github.com/mattn/go-sqlite3 v1.11.0 ## explicit github.com/mattn/go-sqlite3 @@ -458,10 +467,19 @@ github.com/matttproud/golang_protobuf_extensions/pbutil # github.com/mcuadros/go-version v0.0.0-20190308113854-92cdf37c5b75 ## explicit github.com/mcuadros/go-version +# github.com/mgechev/dots v0.0.0-20190921121421-c36f7dcfbb81 +## explicit +github.com/mgechev/dots +# github.com/mgechev/revive v1.0.2 +## explicit +github.com/mgechev/revive/formatter +github.com/mgechev/revive/lint +github.com/mgechev/revive/rule # github.com/microcosm-cc/bluemonday v0.0.0-20161012083705-f77f16ffc87a ## explicit github.com/microcosm-cc/bluemonday # github.com/mitchellh/go-homedir v1.1.0 +## explicit github.com/mitchellh/go-homedir # github.com/mitchellh/mapstructure v1.1.2 github.com/mitchellh/mapstructure @@ -478,6 +496,8 @@ github.com/nfnt/resize # github.com/niklasfasching/go-org v0.1.9 ## explicit github.com/niklasfasching/go-org/org +# github.com/olekukonko/tablewriter v0.0.4 +github.com/olekukonko/tablewriter # github.com/oliamb/cutter v0.2.2 ## explicit github.com/oliamb/cutter @@ -490,7 +510,7 @@ github.com/olivere/elastic/v7/uritemplates github.com/pelletier/go-toml # github.com/philhofer/fwd v1.0.0 github.com/philhofer/fwd -# github.com/pkg/errors v0.8.1 +# github.com/pkg/errors v0.9.1 ## explicit github.com/pkg/errors # github.com/pmezard/go-difflib v1.0.0 @@ -661,6 +681,9 @@ golang.org/x/crypto/ssh golang.org/x/crypto/ssh/agent golang.org/x/crypto/ssh/internal/bcrypt_pbkdf golang.org/x/crypto/ssh/knownhosts +# golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee +golang.org/x/mod/module +golang.org/x/mod/semver # golang.org/x/net v0.0.0-20200301022130-244492dfa37a ## explicit golang.org/x/net/context @@ -708,8 +731,7 @@ golang.org/x/text/transform golang.org/x/text/unicode/bidi golang.org/x/text/unicode/norm golang.org/x/text/width -# golang.org/x/tools v0.0.0-20191213221258-04c2e8eff935 -## explicit +# golang.org/x/tools v0.0.0-20200225230052-807dcd883420 golang.org/x/tools/go/ast/astutil golang.org/x/tools/go/buildutil golang.org/x/tools/go/gcexportdata @@ -720,10 +742,13 @@ golang.org/x/tools/go/loader golang.org/x/tools/go/packages golang.org/x/tools/imports golang.org/x/tools/internal/fastwalk +golang.org/x/tools/internal/gocommand golang.org/x/tools/internal/gopathwalk golang.org/x/tools/internal/imports -golang.org/x/tools/internal/module -golang.org/x/tools/internal/semver +golang.org/x/tools/internal/packagesinternal +# golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 +golang.org/x/xerrors +golang.org/x/xerrors/internal # google.golang.org/appengine v1.6.4 google.golang.org/appengine google.golang.org/appengine/cloudsql