JezK
Edit File: specification_command.rb
require 'rubygems/command' require 'rubygems/local_remote_options' require 'rubygems/version_option' require 'rubygems/format' class Gem::Commands::SpecificationCommand < Gem::Command include Gem::LocalRemoteOptions include Gem::VersionOption def initialize Gem.load_yaml super 'specification', 'Display gem specification (in yaml)', :domain => :local, :version => Gem::Requirement.default, :format => :yaml add_version_option('examine') add_platform_option add_option('--all', 'Output specifications for all versions of', 'the gem') do |value, options| options[:all] = true end add_option('--ruby', 'Output ruby format') do |value, options| options[:format] = :ruby end add_option('--yaml', 'Output RUBY format') do |value, options| options[:format] = :yaml end add_option('--marshal', 'Output Marshal format') do |value, options| options[:format] = :marshal end add_local_remote_options end def arguments # :nodoc: <<-ARGS GEMFILE name of gem to show the gemspec for FIELD name of gemspec field to show ARGS end def defaults_str # :nodoc: "--local --version '#{Gem::Requirement.default}' --yaml" end def usage # :nodoc: "#{program_name} [GEMFILE] [FIELD]" end def execute specs = [] gem = options[:args].shift unless gem then raise Gem::CommandLineError, "Please specify a gem name or file on the command line" end case options[:version] when String req = Gem::Requirement.parse options[:version] when Gem::Requirement req = options[:version] else raise Gem::CommandLineError, "Unsupported version type: #{options[:version]}" end if !req.none? and options[:all] alert_error "Specify --all or -v, not both" terminate_interaction 1 end if options[:all] dep = Gem::Dependency.new gem else dep = Gem::Dependency.new gem, options[:version] end field = get_one_optional_argument raise Gem::CommandLineError, "--ruby and FIELD are mutually exclusive" if field and options[:format] == :ruby if local? then if File.exist? gem then specs << Gem::Format.from_file_by_path(gem).spec rescue nil end if specs.empty? then specs.push(*dep.matching_specs) end end if remote? then found = Gem::SpecFetcher.fetcher.fetch dep, true if dep.prerelease? or options[:prerelease] found += Gem::SpecFetcher.fetcher.fetch dep, false, true, true end specs.push(*found.map { |spec,| spec }) end if specs.empty? then alert_error "Unknown gem '#{gem}'" terminate_interaction 1 end unless options[:all] then specs = [specs.sort_by { |s| s.version }.last] end specs.each do |s| s = s.send field if field say case options[:format] when :ruby then s.to_ruby when :marshal then Marshal.dump s else s.to_yaml end say "\n" end end end