From d5fa2e7510844ad092804b7c11bf6847f7c4e45d Mon Sep 17 00:00:00 2001 From: wxiaoguang Date: Tue, 7 Feb 2023 09:18:52 +0800 Subject: [PATCH] Fix restore repo bug, clarify the problem of ForeignIndex (#22776) Fix #22581 TLDR: #18446 made a mess with ForeignIndex and triggered a design flaw/bug of #16356, then a quick patch #21271 helped #18446, then the the bug was re-triggered by #21721 . Related: * #16356 * BasicIssueContext https://github.com/go-gitea/gitea/pull/16356/files#diff-7938eb670d42a5ead6b08121e16aa4537a4d716c1cf37923c70470020fb9d036R16-R27 * #18446 * If some issues were dumped without ForeignIndex, then they would be imported as ForeignIndex=0 https://github.com/go-gitea/gitea/pull/18446/files#diff-1624a3e715d8fc70edf2db1630642b7d6517f8c359cc69d58c3958b34ba4ce5eR38-R39 * #21271 * It patched the above bug (somewhat), made the issues without ForeignIndex could have the same value as LocalIndex * #21721 * It re-triggered the zero-ForeignIndex bug. ps: I am not sure whether the changes in `GetForeignIndex` are ideal (at least, now it has almost the same behavior as BasicIssueContext in #16356), it's just a quick fix. Feel free to edit on this PR directly or replace it. Co-authored-by: zeripath --- modules/migration/comment.go | 3 +-- modules/migration/issue.go | 13 +++++++++++-- modules/migration/review.go | 12 +++++++++++- 3 files changed, 23 insertions(+), 5 deletions(-) diff --git a/modules/migration/comment.go b/modules/migration/comment.go index f994e972e..92ce30e30 100644 --- a/modules/migration/comment.go +++ b/modules/migration/comment.go @@ -8,8 +8,7 @@ import "time" // Commentable can be commented upon type Commentable interface { - GetLocalIndex() int64 - GetForeignIndex() int64 + Reviewable GetContext() DownloaderContext } diff --git a/modules/migration/issue.go b/modules/migration/issue.go index 7cb9f84b0..3d1d1b4e0 100644 --- a/modules/migration/issue.go +++ b/modules/migration/issue.go @@ -34,6 +34,15 @@ func (issue *Issue) GetExternalName() string { return issue.PosterName } // GetExternalID ExternalUserMigrated interface func (issue *Issue) GetExternalID() int64 { return issue.PosterID } -func (issue *Issue) GetLocalIndex() int64 { return issue.Number } -func (issue *Issue) GetForeignIndex() int64 { return issue.ForeignIndex } +func (issue *Issue) GetLocalIndex() int64 { return issue.Number } + +func (issue *Issue) GetForeignIndex() int64 { + // see the comment of Reviewable.GetForeignIndex + // if there is no ForeignIndex, then use LocalIndex + if issue.ForeignIndex == 0 { + return issue.Number + } + return issue.ForeignIndex +} + func (issue *Issue) GetContext() DownloaderContext { return issue.Context } diff --git a/modules/migration/review.go b/modules/migration/review.go index a420c130c..79e821b2e 100644 --- a/modules/migration/review.go +++ b/modules/migration/review.go @@ -8,6 +8,16 @@ import "time" // Reviewable can be reviewed type Reviewable interface { GetLocalIndex() int64 + + // GetForeignIndex presents the foreign index, which could be misused: + // For example, if there are 2 Gitea sites: site-A exports a dataset, then site-B imports it: + // * if site-A exports files by using its LocalIndex + // * from site-A's view, LocalIndex is site-A's IssueIndex while ForeignIndex is site-B's IssueIndex + // * but from site-B's view, LocalIndex is site-B's IssueIndex while ForeignIndex is site-A's IssueIndex + // + // So the exporting/importing must be paired, but the meaning of them looks confusing then: + // * either site-A and site-B both use LocalIndex during dumping/restoring + // * or site-A and site-B both use ForeignIndex GetForeignIndex() int64 } @@ -37,7 +47,7 @@ type Review struct { // GetExternalName ExternalUserMigrated interface func (r *Review) GetExternalName() string { return r.ReviewerName } -// ExternalID ExternalUserMigrated interface +// GetExternalID ExternalUserMigrated interface func (r *Review) GetExternalID() int64 { return r.ReviewerID } // ReviewComment represents a review comment