# File lib/rubygems/commands/contents_command.rb, line 8
 8:   def initialize
 9:     super 'contents', 'Display the contents of the installed gems',
10:           :specdirs => [], :lib_only => false
11: 
12:     add_version_option
13: 
14:     add_option('-s', '--spec-dir a,b,c', Array,
15:                "Search for gems under specific paths") do |spec_dirs, options|
16:       options[:specdirs] = spec_dirs
17:     end
18: 
19:     add_option('-l', '--[no-]lib-only',
20:                "Only return files in the Gem's lib_dirs") do |lib_only, options|
21:       options[:lib_only] = lib_only
22:     end
23:   end

    # File lib/rubygems/commands/contents_command.rb, line 37
37:   def execute
38:     version = options[:version] || Gem::Requirement.default
39:     gem = get_one_gem_name
40: 
41:     s = options[:specdirs].map do |i|
42:       [i, File.join(i, "specifications")]
43:     end.flatten
44: 
45:     path_kind = if s.empty? then
46:                   s = Gem::SourceIndex.installed_spec_directories
47:                   "default gem paths"
48:                 else
49:                   "specified path"
50:                 end
51: 
52:     si = Gem::SourceIndex.from_gems_in(*s)
53: 
54:     gem_spec = si.search(/\A#{gem}\z/, version).last
55: 
56:     unless gem_spec then
57:       say "Unable to find gem '#{gem}' in #{path_kind}"
58: 
59:       if Gem.configuration.verbose then
60:         say "\nDirectories searched:"
61:         s.each { |dir| say dir }
62:       end
63: 
64:       terminate_interaction
65:     end
66: 
67:     files = options[:lib_only] ? gem_spec.lib_files : gem_spec.files
68:     files.each do |f|
69:       say File.join(gem_spec.full_gem_path, f)
70:     end
71:   end