579 lines
15 KiB
Ruby
579 lines
15 KiB
Ruby
require 'rubygems'
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require 'rubygems/config_file'
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module Bundler
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class RubygemsIntegration
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def self.version
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@version ||= Gem::Version.new(Gem::VERSION)
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end
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def self.provides?(req_str)
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Gem::Requirement.new(req_str).satisfied_by?(version)
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end
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def version
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self.class.version
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end
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def provides?(req_str)
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self.class.provides?(req_str)
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end
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def build_args
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Gem::Command.build_args
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end
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def build_args=(args)
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Gem::Command.build_args = args
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end
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def loaded_specs(name)
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Gem.loaded_specs[name]
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end
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def mark_loaded(spec)
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Gem.loaded_specs[spec.name] = spec
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end
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def path(obj)
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obj.to_s
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end
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def platforms
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Gem.platforms
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end
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def configuration
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Gem.configuration
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rescue Gem::SystemExitException => e
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Bundler.ui.error "#{e.class}: #{e.message}"
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Bundler.ui.trace e
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raise Gem::SystemExitException
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end
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def ruby_engine
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Gem.ruby_engine
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end
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def read_binary(path)
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Gem.read_binary(path)
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end
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def inflate(obj)
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Gem.inflate(obj)
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end
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def sources=(val)
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# Gem.configuration creates a new Gem::ConfigFile, which by default will read ~/.gemrc
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# If that file exists, its settings (including sources) will overwrite the values we
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# are about to set here. In order to avoid that, we force memoizing the config file now.
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configuration
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Gem.sources = val
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end
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def sources
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Gem.sources
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end
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def gem_dir
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Gem.dir
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end
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def gem_bindir
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Gem.bindir
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end
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def user_home
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Gem.user_home
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end
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def gem_path
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Gem.path
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end
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def gem_cache
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gem_path.map{|p| File.expand_path("cache", p) }
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end
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def spec_cache_dirs
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@spec_cache_dirs ||= begin
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dirs = gem_path.map {|dir| File.join(dir, 'specifications')}
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dirs << Gem.spec_cache_dir if Gem.respond_to?(:spec_cache_dir) # Not in Rubygems 2.0.3 or earlier
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dirs.uniq.select {|dir| File.directory? dir}
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end
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end
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def marshal_spec_dir
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Gem::MARSHAL_SPEC_DIR
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end
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def config_map
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Gem::ConfigMap
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end
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def repository_subdirectories
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%w[cache doc gems specifications]
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end
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def clear_paths
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Gem.clear_paths
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end
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def bin_path(gem, bin, ver)
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Gem.bin_path(gem, bin, ver)
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end
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def preserve_paths
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# this is a no-op outside of Rubygems 1.8
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yield
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end
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def ui=(obj)
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Gem::DefaultUserInteraction.ui = obj
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end
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def fetch_specs(all, pre, &blk)
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specs = Gem::SpecFetcher.new.list(all, pre)
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specs.each { yield } if block_given?
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specs
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end
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def fetch_prerelease_specs
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fetch_specs(false, true)
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rescue Gem::RemoteFetcher::FetchError
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[] # if we can't download them, there aren't any
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end
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def fetch_all_remote_specs
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# Fetch all specs, minus prerelease specs
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spec_list = fetch_specs(true, false)
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# Then fetch the prerelease specs
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fetch_prerelease_specs.each {|k, v| spec_list[k] += v }
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return spec_list
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end
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def with_build_args(args)
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old_args = self.build_args
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begin
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self.build_args = args
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yield
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ensure
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self.build_args = old_args
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end
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end
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def gem_from_path(path, policy = nil)
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require 'rubygems/format'
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Gem::Format.from_file_by_path(path, policy)
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end
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def spec_from_gem(path, policy = nil)
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require 'rubygems/security'
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gem_from_path(path, security_policies[policy]).spec
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rescue Gem::Package::FormatError
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raise GemspecError, "Could not read gem at #{path}. It may be corrupted."
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rescue Exception, Gem::Exception, Gem::Security::Exception => e
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if e.is_a?(Gem::Security::Exception) ||
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e.message =~ /unknown trust policy|unsigned gem/i ||
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e.message =~ /couldn't verify (meta)?data signature/i
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raise SecurityError,
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"The gem #{File.basename(path, '.gem')} can't be installed because " \
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"the security policy didn't allow it, with the message: #{e.message}"
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else
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raise e
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end
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end
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def build(spec, skip_validation = false)
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require 'rubygems/builder'
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Gem::Builder.new(spec).build
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end
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def build_gem(gem_dir, spec)
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SharedHelpers.chdir(gem_dir) { build(spec) }
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end
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def download_gem(spec, uri, path)
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uri = Bundler::Source.mirror_for(uri)
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fetcher = Gem::RemoteFetcher.new(configuration[:http_proxy])
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fetcher.download(spec, uri, path)
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end
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def security_policy_keys
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%w{High Medium Low AlmostNo No}.map { |level| "#{level}Security" }
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end
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def security_policies
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@security_policies ||= begin
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require 'rubygems/security'
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Gem::Security::Policies
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rescue LoadError, NameError
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{}
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end
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end
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def reverse_rubygems_kernel_mixin
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# Disable rubygems' gem activation system
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::Kernel.class_eval do
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if private_method_defined?(:gem_original_require)
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alias rubygems_require require
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alias require gem_original_require
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end
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undef gem
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end
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end
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def replace_gem(specs)
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reverse_rubygems_kernel_mixin
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executables = specs.map { |s| s.executables }.flatten
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::Kernel.send(:define_method, :gem) do |dep, *reqs|
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if executables.include? File.basename(caller.first.split(':').first)
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return
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end
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reqs.pop if reqs.last.is_a?(Hash)
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unless dep.respond_to?(:name) && dep.respond_to?(:requirement)
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dep = Gem::Dependency.new(dep, reqs)
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end
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spec = specs.find { |s| s.name == dep.name }
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if spec.nil?
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e = Gem::LoadError.new "#{dep.name} is not part of the bundle. Add it to Gemfile."
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e.name = dep.name
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if e.respond_to?(:requirement=)
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e.requirement = dep.requirement
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else
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e.version_requirement = dep.requirement
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end
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raise e
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elsif dep !~ spec
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e = Gem::LoadError.new "can't activate #{dep}, already activated #{spec.full_name}. " \
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"Make sure all dependencies are added to Gemfile."
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e.name = dep.name
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if e.respond_to?(:requirement=)
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e.requirement = dep.requirement
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else
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e.version_requirement = dep.requirement
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end
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raise e
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end
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true
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end
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end
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def stub_source_index(specs)
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Gem::SourceIndex.send(:alias_method, :old_initialize, :initialize)
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redefine_method(Gem::SourceIndex, :initialize) do |*args|
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@gems = {}
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# You're looking at this thinking: Oh! This is how I make those
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# rubygems deprecations go away!
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#
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# You'd be correct BUT using of this method in production code
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# must be approved by the rubygems team itself!
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#
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# This is your warning. If you use this and don't have approval
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# we can't protect you.
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#
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Deprecate.skip_during do
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self.spec_dirs = *args
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add_specs(*specs)
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end
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end
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end
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# Used to make bin stubs that are not created by bundler work
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# under bundler. The new Gem.bin_path only considers gems in
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# +specs+
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def replace_bin_path(specs)
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gem_class = (class << Gem ; self ; end)
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redefine_method(gem_class, :bin_path) do |name, *args|
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exec_name = args.first
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if exec_name == 'bundle'
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return ENV['BUNDLE_BIN_PATH']
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end
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spec = nil
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if exec_name
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spec = specs.find { |s| s.executables.include?(exec_name) }
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unless spec.name == name
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warn "Bundler is using a binstub that was created for a different gem.\n" \
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"This is deprecated, in future versions you may need to `bundle binstub #{name}` " \
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"to work around a system/bundle conflict."
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end
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spec or raise Gem::Exception, "can't find executable #{exec_name}"
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else
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spec = specs.find { |s| s.name == name }
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exec_name = spec.default_executable or raise Gem::Exception, "no default executable for #{spec.full_name}"
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end
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gem_bin = File.join(spec.full_gem_path, spec.bindir, exec_name)
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gem_from_path_bin = File.join(File.dirname(spec.loaded_from), spec.bindir, exec_name)
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File.exist?(gem_bin) ? gem_bin : gem_from_path_bin
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end
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end
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# Because Bundler has a static view of what specs are available,
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# we don't #refresh, so stub it out.
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def replace_refresh
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gem_class = (class << Gem ; self ; end)
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redefine_method(gem_class, :refresh) { }
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end
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# Replace or hook into Rubygems to provide a bundlerized view
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# of the world.
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def replace_entrypoints(specs)
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replace_gem(specs)
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stub_rubygems(specs)
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replace_bin_path(specs)
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replace_refresh
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Gem.clear_paths
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end
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# This backports the correct segment generation code from Rubygems 1.4+
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# by monkeypatching it into the method in Rubygems 1.3.6 and 1.3.7.
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def backport_segment_generation
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redefine_method(Gem::Version, :segments) do
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@segments ||= @version.scan(/[0-9]+|[a-z]+/i).map do |s|
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/^\d+$/ =~ s ? s.to_i : s
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end
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end
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end
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# This backport fixes the marshaling of @segments.
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def backport_yaml_initialize
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redefine_method(Gem::Version, :yaml_initialize) do |tag, map|
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@version = map['version']
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@segments = nil
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@hash = nil
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end
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end
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# This backports base_dir which replaces installation path
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# Rubygems 1.8+
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def backport_base_dir
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redefine_method(Gem::Specification, :base_dir) do
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return Gem.dir unless loaded_from
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File.dirname File.dirname loaded_from
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end
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end
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def backport_cache_file
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redefine_method(Gem::Specification, :cache_dir) do
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@cache_dir ||= File.join base_dir, "cache"
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end
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redefine_method(Gem::Specification, :cache_file) do
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@cache_file ||= File.join cache_dir, "#{full_name}.gem"
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end
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end
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def backport_spec_file
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redefine_method(Gem::Specification, :spec_dir) do
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@spec_dir ||= File.join base_dir, "specifications"
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end
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redefine_method(Gem::Specification, :spec_file) do
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@spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
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end
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end
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def redefine_method(klass, method, &block)
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if klass.instance_methods(false).include?(method)
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klass.send(:remove_method, method)
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end
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klass.send(:define_method, method, &block)
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end
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# Rubygems 1.4 through 1.6
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class Legacy < RubygemsIntegration
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def initialize
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super
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backport_base_dir
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backport_cache_file
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backport_spec_file
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backport_yaml_initialize
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end
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def stub_rubygems(specs)
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# Rubygems versions lower than 1.7 use SourceIndex#from_gems_in
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source_index_class = (class << Gem::SourceIndex ; self ; end)
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source_index_class.send(:define_method, :from_gems_in) do |*args|
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source_index = Gem::SourceIndex.new
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source_index.spec_dirs = *args
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source_index.add_specs(*specs)
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source_index
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end
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end
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def all_specs
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Gem.source_index.gems.values
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end
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def find_name(name)
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Gem.source_index.find_name(name)
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end
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end
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# Rubygems versions 1.3.6 and 1.3.7
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class Ancient < Legacy
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def initialize
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super
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backport_segment_generation
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end
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end
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# Rubygems 1.7
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class Transitional < Legacy
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def stub_rubygems(specs)
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stub_source_index(specs)
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end
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end
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# Rubygems 1.8.5-1.8.19
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class Modern < RubygemsIntegration
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def stub_rubygems(specs)
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Gem::Specification.all = specs
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Gem.post_reset {
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Gem::Specification.all = specs
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}
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stub_source_index(specs)
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end
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def all_specs
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Gem::Specification.to_a
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end
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def find_name(name)
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Gem::Specification.find_all_by_name name
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end
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end
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# Rubygems 1.8.0 to 1.8.4
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class AlmostModern < Modern
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# Rubygems [>= 1.8.0, < 1.8.5] has a bug that changes Gem.dir whenever
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# you call Gem::Installer#install with an :install_dir set. We have to
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# change it back for our sudo mode to work.
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def preserve_paths
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old_dir, old_path = gem_dir, gem_path
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yield
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Gem.use_paths(old_dir, old_path)
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end
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end
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# Rubygems 1.8.20+
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class MoreModern < Modern
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# Rubygems 1.8.20 and adds the skip_validation parameter, so that's
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# when we start passing it through.
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def build(spec, skip_validation = false)
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require 'rubygems/builder'
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Gem::Builder.new(spec).build(skip_validation)
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end
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end
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# Rubygems 2.0
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class Future < RubygemsIntegration
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def stub_rubygems(specs)
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Gem::Specification.all = specs
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Gem.post_reset do
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Gem::Specification.all = specs
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end
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end
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def all_specs
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Gem::Specification.to_a
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end
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def find_name(name)
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Gem::Specification.find_all_by_name name
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end
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def fetch_specs(source, name)
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path = source + "#{name}.#{Gem.marshal_version}.gz"
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string = Gem::RemoteFetcher.fetcher.fetch_path(path)
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Bundler.load_marshal(string)
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rescue Gem::RemoteFetcher::FetchError => e
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# it's okay for prerelease to fail
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raise e unless name == "prerelease_specs"
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end
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def fetch_all_remote_specs
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# Since SpecFetcher now returns NameTuples, we just fetch directly
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# and unmarshal the array ourselves.
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hash = {}
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Gem.sources.each do |source|
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source = URI.parse(source.to_s) unless source.is_a?(URI)
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hash[source] = fetch_specs(source, "specs")
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pres = fetch_specs(source, "prerelease_specs")
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hash[source].push(*pres) if pres && !pres.empty?
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end
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hash
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end
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def download_gem(spec, uri, path)
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require 'resolv'
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uri = Bundler::Source.mirror_for(uri)
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proxy, dns = configuration[:http_proxy], Resolv::DNS.new
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fetcher = Gem::RemoteFetcher.new(proxy, dns)
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fetcher.download(spec, uri, path)
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end
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def gem_from_path(path, policy = nil)
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require 'rubygems/package'
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p = Gem::Package.new(path)
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p.security_policy = policy if policy
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return p
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end
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def build(spec, skip_validation = false)
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require 'rubygems/package'
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Gem::Package.build(spec, skip_validation)
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end
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def repository_subdirectories
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Gem::REPOSITORY_SUBDIRECTORIES
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end
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end
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end
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if RubygemsIntegration.provides?(">= 1.99.99")
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@rubygems = RubygemsIntegration::Future.new
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elsif RubygemsIntegration.provides?('>= 1.8.20')
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@rubygems = RubygemsIntegration::MoreModern.new
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elsif RubygemsIntegration.provides?('>= 1.8.5')
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@rubygems = RubygemsIntegration::Modern.new
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elsif RubygemsIntegration.provides?('>= 1.8.0')
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@rubygems = RubygemsIntegration::AlmostModern.new
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elsif RubygemsIntegration.provides?('>= 1.7.0')
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@rubygems = RubygemsIntegration::Transitional.new
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elsif RubygemsIntegration.provides?('>= 1.4.0')
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@rubygems = RubygemsIntegration::Legacy.new
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else # Rubygems 1.3.6 and 1.3.7
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@rubygems = RubygemsIntegration::Ancient.new
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end
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class << self
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attr_reader :rubygems
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end
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end
|