The SourceIndex object indexes all the gems available from a particular source (e.g. a list of gem directories, or a remote source). A SourceIndex maps a gem full name to a gem specification.
NOTE |
The class used to be named Cache, but that became confusing when cached source fetchers where introduced. The constant Gem::Cache is an alias for this class to allow old YAMLized source index objects to load properly. |
Creates a new SourceIndex from the ruby format gem specifications in spec_dirs.
# File lib/rubygems/source_index.rb, line 66 def self.from_gems_in(*spec_dirs) new spec_dirs end
Factory method to construct a source index instance for a given path.
deprecated |
If supplied, from_installed_gems will act just like from_gems_in. This argument is deprecated and is provided just for backwards compatibility, and should not generally be used. |
return |
SourceIndex instance |
# File lib/rubygems/source_index.rb, line 45 def self.from_installed_gems(*deprecated) if deprecated.empty? from_gems_in(*installed_spec_directories) else warn "NOTE: from_installed_gems(arg) is deprecated. From #{caller.first}" from_gems_in(*deprecated) # HACK warn end end
Returns a list of directories from Gem.path that contain specifications.
# File lib/rubygems/source_index.rb, line 57 def self.installed_spec_directories # TODO: move to Gem::Utils Gem.path.collect { |dir| File.join(dir, "specifications") } end
Loads a ruby-format specification from file_name and returns the loaded spec.
# File lib/rubygems/source_index.rb, line 74 def self.load_specification(file_name) Gem::Deprecate.skip_during do Gem::Specification.load Gem::Path.new(file_name) end end
Constructs a source index instance from the provided specifications, which is a Hash of gem full names and Gem::Specifications.
# File lib/rubygems/source_index.rb, line 84 def initialize specs_or_dirs = [] @gems = {} @spec_dirs = nil case specs_or_dirs when Hash then specs_or_dirs.each do |full_name, spec| add_spec spec end when Array, String then self.spec_dirs = Array(specs_or_dirs) refresh! else arg = specs_or_dirs.inspect warn "NOTE: SourceIndex.new(#{arg}) is deprecated; From #{caller.first}." end end
Add a gem specification to the source index.
# File lib/rubygems/source_index.rb, line 186 def add_spec(gem_spec, name = gem_spec.full_name) # No idea why, but the Indexer wants to insert them using original_name # instead of full_name. So we make it an optional arg. @gems[name] = gem_spec end
Add gem specifications to the source index.
# File lib/rubygems/source_index.rb, line 195 def add_specs(*gem_specs) Gem::Deprecate.skip_during do gem_specs.each do |spec| add_spec spec end end end
# File lib/rubygems/source_index.rb, line 102 def all_gems gems end
# File lib/rubygems/source_index.rb, line 350 def dump Marshal.dump(self) end
Iterate over the specifications in the source index.
# File lib/rubygems/source_index.rb, line 213 def each(&block) # :yields: gem.full_name, gem @gems.each(&block) end
Find a gem by an exact match on the short name.
# File lib/rubygems/source_index.rb, line 251 def find_name(gem_name, requirement = Gem::Requirement.default) dep = Gem::Dependency.new gem_name, requirement Gem::Deprecate.skip_during do search dep end end
The signature for the given gem specification.
# File lib/rubygems/source_index.rb, line 237 def gem_signature(gem_full_name) require 'digest' Digest::SHA256.new.hexdigest(@gems[gem_full_name].to_yaml).to_s end
The signature for the source index. Changes in the signature indicate a change in the index.
# File lib/rubygems/source_index.rb, line 228 def index_signature require 'digest' Digest::SHA256.new.hexdigest(@gems.keys.sort.join(',')).to_s end
Returns an Array specifications for the latest released versions of each gem in this index.
# File lib/rubygems/source_index.rb, line 138 def latest_specs(include_prerelease=false) result = Hash.new { |h,k| h[k] = [] } latest = {} sort.each do |_, spec| name = spec.name curr_ver = spec.version prev_ver = latest.key?(name) ? latest[name].version : nil next if !include_prerelease && curr_ver.prerelease? next unless prev_ver.nil? or curr_ver >= prev_ver or latest[name].platform != Gem::Platform::RUBY if prev_ver.nil? or (curr_ver > prev_ver and spec.platform == Gem::Platform::RUBY) then result[name].clear latest[name] = spec end if spec.platform != Gem::Platform::RUBY then result[name].delete_if do |result_spec| result_spec.platform == spec.platform end end result[name] << spec end result.values.flatten end
Reconstruct the source index from the specifications in spec_dirs.
# File lib/rubygems/source_index.rb, line 117 def load_gems_in(*spec_dirs) @gems.clear spec_dirs.reverse_each do |spec_dir| spec_files = Dir[File.join(spec_dir, "*.gemspec")] spec_files.each do |spec_file| gemspec = Gem::Deprecate.skip_during do Gem::Specification.load spec_file end add_spec gemspec if gemspec end end self end
Returns an Array of Gem::Specifications that are not up to date.
# File lib/rubygems/source_index.rb, line 328 def outdated outdateds = [] latest_specs.each do |local| dependency = Gem::Dependency.new local.name, ">= #{local.version}" fetcher = Gem::SpecFetcher.fetcher remotes = fetcher.find_matching dependency remotes = remotes.map { |(_, version, _), _| version } latest = remotes.sort.last outdateds << local.name if latest and local.version < latest end outdateds end
# File lib/rubygems/source_index.rb, line 106 def prerelease_gems @gems.reject { |name, gem| !gem.version.prerelease? } end
An array including only the prerelease gemspecs
# File lib/rubygems/source_index.rb, line 172 def prerelease_specs prerelease_gems.values end
Replaces the gems in the source index from specifications in the directories this source index was created from. Raises an exception if this source index wasn't created from a directory (via from_gems_in or from_installed_gems, or having spec_dirs set).
# File lib/rubygems/source_index.rb, line 320 def refresh! raise 'source index not created from disk' if @spec_dirs.nil? load_gems_in(*@spec_dirs) end
# File lib/rubygems/source_index.rb, line 110 def released_gems @gems.reject { |name, gem| gem.version.prerelease? } end
An array including only the released gemspecs
# File lib/rubygems/source_index.rb, line 179 def released_specs released_gems.values end
Remove a gem specification named full_name.
# File lib/rubygems/source_index.rb, line 206 def remove_spec(full_name) @gems.delete full_name end
Search for a gem by Gem::Dependency gem_pattern. If only_platform is true, only gems matching Gem::Platform.local will be returned. An Array of matching Gem::Specification objects is returned.
For backwards compatibility, a String or Regexp pattern may be passed as gem_pattern, and a Gem::Requirement for platform_only. This behavior is deprecated and will be removed.
# File lib/rubygems/source_index.rb, line 268 def search(gem_pattern, platform_or_requirement = false) requirement = nil only_platform = false # FIX: WTF is this?!? # TODO - Remove support and warning for legacy arguments after 2008/11 unless Gem::Dependency === gem_pattern warn "#{Gem.location_of_caller.join ':'}:Warning: Gem::SourceIndex#search support for #{gem_pattern.class} patterns is deprecated, use #find_name" end case gem_pattern when Regexp then requirement = platform_or_requirement || Gem::Requirement.default when Gem::Dependency then only_platform = platform_or_requirement requirement = gem_pattern.requirement gem_pattern = if Regexp === gem_pattern.name then gem_pattern.name elsif gem_pattern.name.empty? then // else /^#{Regexp.escape gem_pattern.name}$/ end else requirement = platform_or_requirement || Gem::Requirement.default gem_pattern = /#{gem_pattern}/ end unless Gem::Requirement === requirement then requirement = Gem::Requirement.create requirement end specs = @gems.values.select do |spec| spec.name =~ gem_pattern and requirement.satisfied_by? spec.version end if only_platform then specs = specs.select do |spec| Gem::Platform.match spec.platform end end specs.sort_by { |s| s.sort_obj } end
# File lib/rubygems/source_index.rb, line 243 def size @gems.size end
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