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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 command, "for use with --installed" 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 terminate_interaction exit_code end req = Gem::Requirement.default # TODO: deprecate for real dep = Gem::Deprecate.skip_during { Gem::Dependency.new name, req } 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::Specification.find_all { \|s\| s.name =~ name and req =~ s.version } 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] 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 output_query_results spec_tuples end end private ## # Check if gem +name+ version +version+ is installed. def installed?(name, req = Gem::Requirement.default) Gem::Specification.any? { \|s\| s.name =~ name and req =~ s.version } 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 \|(_, version,_),_\| version end.reverse platforms = Hash.new { \|h,version\| h[version] = [] } matching_tuples.map do \|(_, version, platform,_),_\| platforms[version] << platform if platform end seen = {} matching_tuples.delete_if do \|(_, version,_),_\| if seen[version] then true else seen[version] = true false end end entry = gem_name.dup if options[:versions] then list = if platforms.empty? or options[:details] then matching_tuples.map { \|(_, version,_),_\| version }.uniq else platforms.sort.reverse.map do \|version, pls\| if pls == [Gem::Platform::RUBY] then version else ruby = pls.delete Gem::Platform::RUBY platform_list = [ruby, pls.sort].compact "#{version} #{platform_list.join ' '}" end end end.join ', ' entry << " (#{list})" 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