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 => nil, :version => Gem::Requirement.default add_option('-i', '--[no-]installed', 'Check for installed gem') do |value, options| options[:installed] = value end add_option('-I', 'Equivalent to --no-installed') do |value, options| options[:installed] = false 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] unless options[:installed].nil? then if name.source.empty? then alert_error "You must specify a gem name" exit_code |= 4 else installed = installed? name, options[:version] installed = !installed unless options[:installed] if installed then say "true" else say "false" exit_code |= 1 end end terminate_interaction exit_code end req = Gem::Requirement.default # TODO: deprecate for real dep = Gem::Deprecate.skip_during { Gem::Dependency.new name, req } dep.prerelease = prerelease 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_tuple, spec] end output_query_results spec_tuples end if remote? then if ui.outs.tty? or both? then say say "*** REMOTE GEMS ***" say end fetcher = Gem::SpecFetcher.fetcher type = if options[:all] if options[:prerelease] :complete else :released end elsif options[:prerelease] :prerelease else :latest end if options[:name].source.empty? spec_tuples = fetcher.detect(type) { true } else spec_tuples = fetcher.detect(type) do |name_tuple| options[:name] === name_tuple.name end end 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| versions[spec_tuple.name] << [spec_tuple, source] end versions = versions.sort_by do |(n,_),_| n.downcase end output_versions output, versions say output.join(options[:details] ? "\n\n" : "\n") end def output_versions output, versions versions.each do |gem_name, matching_tuples| matching_tuples = matching_tuples.sort_by { |n,_| n.version }.reverse platforms = Hash.new { |h,version| h[version] = [] } matching_tuples.each do |n, _| platforms[n.version] << n.platform if n.platform end seen = {} matching_tuples.delete_if do |n,_| if seen[n.version] then true else seen[n.version] = true false end end output << make_entry(matching_tuples, platforms) end end def entry_details entry, detail_tuple, specs, platforms return unless options[:details] name_tuple, spec = detail_tuple spec = spec.fetch_spec name_tuple unless Gem::Specification === spec entry << "\n" spec_platforms entry, platforms spec_authors entry, spec spec_homepage entry, spec spec_license entry, spec spec_loaded_from entry, spec, specs spec_summary entry, spec end def entry_versions entry, name_tuples, platforms return unless options[:versions] list = if platforms.empty? or options[:details] then name_tuples.map { |n| n.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 entry << " (#{list.join ', '})" end def make_entry entry_tuples, platforms detail_tuple = entry_tuples.first name_tuples, specs = entry_tuples.flatten.partition do |item| Gem::NameTuple === item end entry = [name_tuples.first.name] entry_versions entry, name_tuples, platforms entry_details entry, detail_tuple, specs, platforms entry.join end def spec_authors entry, spec authors = "Author#{spec.authors.length > 1 ? 's' : ''}: " authors << spec.authors.join(', ') entry << format_text(authors, 68, 4) end def spec_homepage entry, spec return if spec.homepage.nil? or spec.homepage.empty? entry << "\n" << format_text("Homepage: #{spec.homepage}", 68, 4) end def spec_license entry, spec return if spec.license.nil? or spec.license.empty? licenses = "License#{spec.licenses.length > 1 ? 's' : ''}: " licenses << spec.licenses.join(', ') entry << "\n" << format_text(licenses, 68, 4) end def spec_loaded_from entry, spec, specs return unless spec.loaded_from if specs.length == 1 then default = spec.default_gem? ? ' (default)' : nil entry << "\n" << " Installed at#{default}: #{spec.base_dir}" else label = 'Installed at' specs.each do |s| version = s.version.to_s version << ', default' if s.default_gem? entry << "\n" << " #{label} (#{version}): #{s.base_dir}" label = ' ' * label.length end end end def spec_platforms entry, platforms non_ruby = platforms.any? do |_, pls| pls.any? { |pl| pl != Gem::Platform::RUBY } end return unless non_ruby 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 def spec_summary entry, spec entry << "\n\n" << format_text(spec.summary, 68, 4) end end