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files >> //opt/alt/ruby19/lib64/ruby/1.9.1/rubygems/source_index.rb
#-- # Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others. # All rights reserved. # See LICENSE.txt for permissions. #++ require 'rubygems/specification' require 'rubygems/deprecate' ## # 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. class Gem::SourceIndex include Enumerable attr_reader :gems # :nodoc: ## # Directories to use to refresh this SourceIndex when calling refresh! attr_accessor :spec_dirs ## # 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 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. def self.installed_spec_directories # TODO: move to Gem::Utils Gem.path.collect { |dir| File.join(dir, "specifications") } end ## # Creates a new SourceIndex from the ruby format gem specifications in # +spec_dirs+. def self.from_gems_in(*spec_dirs) new spec_dirs end ## # Loads a ruby-format specification from +file_name+ and returns the # loaded spec. 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. 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 def all_gems gems end def prerelease_gems @gems.reject { |name, gem| !gem.version.prerelease? } end def released_gems @gems.reject { |name, gem| gem.version.prerelease? } end ## # Reconstruct the source index from the specifications in +spec_dirs+. 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 specifications for the latest released versions # of each gem in this index. 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 ## # An array including only the prerelease gemspecs def prerelease_specs prerelease_gems.values end ## # An array including only the released gemspecs def released_specs released_gems.values end ## # Add a gem specification to the source index. 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. def add_specs(*gem_specs) Gem::Deprecate.skip_during do gem_specs.each do |spec| add_spec spec end end end ## # Remove a gem specification named +full_name+. def remove_spec(full_name) @gems.delete full_name end ## # Iterate over the specifications in the source index. def each(&block) # :yields: gem.full_name, gem @gems.each(&block) end ## # The gem specification given a full gem spec name. def specification(full_name) @gems[full_name] end ## # The signature for the source index. Changes in the signature indicate a # change in the index. def index_signature require 'digest' Digest::SHA256.new.hexdigest(@gems.keys.sort.join(',')).to_s end ## # The signature for the given gem specification. def gem_signature(gem_full_name) require 'digest' Digest::SHA256.new.hexdigest(@gems[gem_full_name].to_yaml).to_s end def size @gems.size end alias length size ## # Find a gem by an exact match on the short name. 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 ## # 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. 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}/i 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 ## # 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). def refresh! raise 'source index not created from disk' if @spec_dirs.nil? load_gems_in(*@spec_dirs) end ## # Returns an Array of Gem::Specifications that are not up to date. 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 def ==(other) # :nodoc: self.class === other and @gems == other.gems end def dump Marshal.dump(self) end end # :stopdoc: module Gem ## # Cache is an alias for SourceIndex to allow older YAMLized source index # objects to load properly. Cache = SourceIndex end class Gem::SourceIndex extend Gem::Deprecate deprecate :all_gems, :none, 2011, 10 deprecate :==, :none, 2011, 11 # noisy deprecate :add_specs, :none, 2011, 11 # noisy deprecate :each, :none, 2011, 11 deprecate :gems, :none, 2011, 11 deprecate :load_gems_in, :none, 2011, 11 deprecate :refresh!, :none, 2011, 11 deprecate :spec_dirs=, "Specification.dirs=", 2011, 11 # noisy deprecate :add_spec, "Specification.add_spec", 2011, 11 deprecate :find_name, "Specification.find_by_name", 2011, 11 deprecate :gem_signature, :none, 2011, 11 deprecate :index_signature, :none, 2011, 11 deprecate :initialize, :none, 2011, 11 deprecate :latest_specs, "Specification.latest_specs", 2011, 11 deprecate :length, "Specification.all.length", 2011, 11 deprecate :outdated, :none, 2011, 11 deprecate :prerelease_gems, :none, 2011, 11 deprecate :prerelease_specs, :none, 2011, 11 deprecate :released_gems, :none, 2011, 11 deprecate :released_specs, :none, 2011, 11 deprecate :remove_spec, "Specification.remove_spec", 2011, 11 deprecate :search, :none, 2011, 11 deprecate :size, "Specification.all.size", 2011, 11 deprecate :spec_dirs, "Specification.dirs", 2011, 11 deprecate :specification, "Specification.find", 2011, 11 class << self extend Gem::Deprecate deprecate :from_gems_in, :none, 2011, 10 deprecate :from_installed_gems, :none, 2011, 10 deprecate :installed_spec_directories, "Specification.dirs", 2011, 11 deprecate :load_specification, :none, 2011, 10 end end # :startdoc:
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