require 'rubygems/command' require 'rubygems/local_remote_options' require 'rubygems/spec_fetcher' require 'rubygems/version_option' require 'rubygems/text' class Gem::Commands::QueryCommand < Gem::Command include Gem::Text include Gem::LocalRemoteOptions include Gem::VersionOption def initialize(name = 'query', summary = 'Query gem information in local or remote repositories') super name, summary, :name => //, :domain => :local, :details => false, :versions => true, :installed => false, :version => Gem::Requirement.default add_option('-i', '--[no-]installed', 'Check for installed gem') do |value, options| options[:installed] = value end add_version_option add_option('-n', '--name-matches REGEXP', 'Name of gem(s) to query on matches the', 'provided REGEXP') do |value, options| options[:name] = /#{value}/i end add_option('-d', '--[no-]details', 'Display detailed information of gem(s)') do |value, options| options[:details] = value end add_option( '--[no-]versions', 'Display only gem names') do |value, options| options[:versions] = value options[:details] = false unless value end add_option('-a', '--all', 'Display all gem versions') do |value, options| options[:all] = value end add_option( '--[no-]prerelease', 'Display prerelease versions') do |value, options| options[:prerelease] = value end add_local_remote_options end def defaults_str # :nodoc: "--local --name-matches // --no-details --versions --no-installed" end def execute exit_code = 0 name = options[:name] prerelease = options[:prerelease] if options[:installed] then if name.source.empty? then alert_error "You must specify a gem name" exit_code |= 4 elsif installed? name, options[:version] then say "true" else say "false" exit_code |= 1 end raise Gem::SystemExitException, exit_code end dep = Gem::Dependency.new name, Gem::Requirement.default if local? then if prerelease and not both? then alert_warning "prereleases are always shown locally" end if ui.outs.tty? or both? then say say "*** LOCAL GEMS ***" say end specs = Gem.source_index.search dep spec_tuples = specs.map do |spec| [[spec.name, spec.version, spec.original_platform, spec], :local] end output_query_results spec_tuples end if remote? then if ui.outs.tty? or both? then say say "*** REMOTE GEMS ***" say end all = options[:all] begin fetcher = Gem::SpecFetcher.fetcher spec_tuples = fetcher.find_matching dep, all, false, prerelease spec_tuples += fetcher.find_matching dep, false, false, true if prerelease and all rescue Gem::RemoteFetcher::FetchError => e if prerelease then raise Gem::OperationNotSupportedError, "Prereleases not supported on legacy repositories" end raise unless fetcher.warn_legacy e do require 'rubygems/source_info_cache' dep.name = '' if dep.name == // specs = Gem::SourceInfoCache.search_with_source dep, false, all spec_tuples = specs.map do |spec, source_uri| [[spec.name, spec.version, spec.original_platform, spec], source_uri] end end end output_query_results spec_tuples end end private ## # Check if gem +name+ version +version+ is installed. def installed?(name, version = Gem::Requirement.default) dep = Gem::Dependency.new name, version !Gem.source_index.search(dep).empty? end def output_query_results(spec_tuples) output = [] versions = Hash.new { |h,name| h[name] = [] } spec_tuples.each do |spec_tuple, source_uri| versions[spec_tuple.first] << [spec_tuple, source_uri] end versions = versions.sort_by do |(name,_),_| name.downcase end versions.each do |gem_name, matching_tuples| matching_tuples = matching_tuples.sort_by do |(name, version,_),_| version end.reverse platforms = Hash.new { |h,version| h[version] = [] } matching_tuples.map do |(name, version, platform,_),_| platforms[version] << platform if platform end seen = {} matching_tuples.delete_if do |(name, version,_),_| if seen[version] then true else seen[version] = true false end end entry = gem_name.dup if options[:versions] then versions = matching_tuples.map { |(name, version,_),_| version }.uniq entry << " (#{versions.join ', '})" end if options[:details] then detail_tuple = matching_tuples.first spec = if detail_tuple.first.length == 4 then detail_tuple.first.last else uri = URI.parse detail_tuple.last Gem::SpecFetcher.fetcher.fetch_spec detail_tuple.first, uri end entry << "\n" non_ruby = platforms.any? do |_, pls| pls.any? { |pl| pl != Gem::Platform::RUBY } end if non_ruby then if platforms.length == 1 then title = platforms.values.length == 1 ? 'Platform' : 'Platforms' entry << " #{title}: #{platforms.values.sort.join ', '}\n" else entry << " Platforms:\n" platforms.sort_by do |version,| version end.each do |version, pls| label = " #{version}: " data = format_text pls.sort.join(', '), 68, label.length data[0, label.length] = label entry << data << "\n" end end end authors = "Author#{spec.authors.length > 1 ? 's' : ''}: " authors << spec.authors.join(', ') entry << format_text(authors, 68, 4) if spec.rubyforge_project and not spec.rubyforge_project.empty? then rubyforge = "Rubyforge: http://rubyforge.org/projects/#{spec.rubyforge_project}" entry << "\n" << format_text(rubyforge, 68, 4) end if spec.homepage and not spec.homepage.empty? then entry << "\n" << format_text("Homepage: #{spec.homepage}", 68, 4) end if spec.license and not spec.license.empty? then licenses = "License#{spec.licenses.length > 1 ? 's' : ''}: " licenses << spec.licenses.join(', ') entry << "\n" << format_text(licenses, 68, 4) end if spec.loaded_from then if matching_tuples.length == 1 then loaded_from = File.dirname File.dirname(spec.loaded_from) entry << "\n" << " Installed at: #{loaded_from}" else label = 'Installed at' matching_tuples.each do |(_,version,_,s),| loaded_from = File.dirname File.dirname(s.loaded_from) entry << "\n" << " #{label} (#{version}): #{loaded_from}" label = ' ' * label.length end end end entry << "\n\n" << format_text(spec.summary, 68, 4) end output << entry end say output.join(options[:details] ? "\n\n" : "\n") end end