171 lines
3.7 KiB
Ruby
171 lines
3.7 KiB
Ruby
require 'English'
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require 'rubygems/command'
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require 'rubygems/version_option'
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class Gem::Commands::ContentsCommand < Gem::Command
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include Gem::VersionOption
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def initialize
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super 'contents', 'Display the contents of the installed gems',
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:specdirs => [], :lib_only => false, :prefix => true
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add_version_option
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add_option( '--all',
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"Contents for all gems") do |all, options|
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options[:all] = all
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end
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add_option('-s', '--spec-dir a,b,c', Array,
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"Search for gems under specific paths") do |spec_dirs, options|
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options[:specdirs] = spec_dirs
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end
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add_option('-l', '--[no-]lib-only',
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"Only return files in the Gem's lib_dirs") do |lib_only, options|
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options[:lib_only] = lib_only
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end
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add_option( '--[no-]prefix',
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"Don't include installed path prefix") do |prefix, options|
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options[:prefix] = prefix
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end
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@path_kind = nil
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@spec_dirs = nil
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@version = nil
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end
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def arguments # :nodoc:
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"GEMNAME name of gem to list contents for"
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end
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def defaults_str # :nodoc:
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"--no-lib-only --prefix"
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end
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def description # :nodoc:
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<<-EOF
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The contents command lists the files in an installed gem. The listing can
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be given as full file names, file names without the installed directory
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prefix or only the files that are requireable.
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EOF
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end
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def usage # :nodoc:
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"#{program_name} GEMNAME [GEMNAME ...]"
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end
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def execute
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@version = options[:version] || Gem::Requirement.default
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@spec_dirs = specification_directories
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@path_kind = path_description @spec_dirs
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names = gem_names
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names.each do |name|
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found = gem_contents name
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terminate_interaction 1 unless found or names.length > 1
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end
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end
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def files_in spec
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if spec.default_gem? then
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files_in_default_gem spec
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else
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files_in_gem spec
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end
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end
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def files_in_gem spec
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gem_path = spec.full_gem_path
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extra = "/{#{spec.require_paths.join ','}}" if options[:lib_only]
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glob = "#{gem_path}#{extra}/**/*"
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prefix_re = /#{Regexp.escape(gem_path)}\//
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Dir[glob].map do |file|
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[gem_path, file.sub(prefix_re, "")]
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end
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end
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def files_in_default_gem spec
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spec.files.sort.map do |file|
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case file
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when /\A#{spec.bindir}\//
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[Gem::ConfigMap[:bindir], $POSTMATCH]
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when /\.so\z/
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[Gem::ConfigMap[:archdir], file]
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else
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[Gem::ConfigMap[:rubylibdir], file]
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end
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end
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end
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def gem_contents name
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spec = spec_for name
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return false unless spec
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files = files_in spec
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show_files files
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true
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end
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def gem_names # :nodoc:
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if options[:all] then
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Gem::Specification.map(&:name)
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else
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get_all_gem_names
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end
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end
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def path_description spec_dirs # :nodoc:
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if spec_dirs.empty? then
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spec_dirs = Gem::Specification.dirs
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"default gem paths"
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else
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"specified path"
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end
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end
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def show_files files
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files.sort.each do |prefix, basename|
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absolute_path = File.join(prefix, basename)
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next if File.directory? absolute_path
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if options[:prefix] then
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say absolute_path
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else
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say basename
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end
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end
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end
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def spec_for name
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spec = Gem::Specification.find_all_by_name(name, @version).last
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return spec if spec
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say "Unable to find gem '#{name}' in #{@path_kind}"
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if Gem.configuration.verbose then
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say "\nDirectories searched:"
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@spec_dirs.sort.each { |dir| say dir }
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end
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return nil
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end
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def specification_directories # :nodoc:
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options[:specdirs].map do |i|
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[i, File.join(i, "specifications")]
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end.flatten
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end
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end
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