# File lib/rubygems/commands/sources_command.rb, line 10
10:   def initialize
11:     require 'fileutils'
12: 
13:     super 'sources',
14:           'Manage the sources and cache file RubyGems uses to search for gems'
15: 
16:     add_option '-a', '--add SOURCE_URI', 'Add source' do |value, options|
17:       options[:add] = value
18:     end
19: 
20:     add_option '-l', '--list', 'List sources' do |value, options|
21:       options[:list] = value
22:     end
23: 
24:     add_option '-r', '--remove SOURCE_URI', 'Remove source' do |value, options|
25:       options[:remove] = value
26:     end
27: 
28:     add_option '-c', '--clear-all',
29:                'Remove all sources (clear the cache)' do |value, options|
30:       options[:clear_all] = value
31:     end
32: 
33:     add_option '-u', '--update', 'Update source cache' do |value, options|
34:       options[:update] = value
35:     end
36: 
37:     add_proxy_option
38:   end

    # File lib/rubygems/commands/sources_command.rb, line 40
40:   def defaults_str
41:     '--list'
42:   end

     # File lib/rubygems/commands/sources_command.rb, line 44
 44:   def execute
 45:     options[:list] = !(options[:add] ||
 46:                        options[:clear_all] ||
 47:                        options[:remove] ||
 48:                        options[:update])
 49: 
 50:     if options[:clear_all] then
 51:       path = Gem::SpecFetcher.fetcher.dir
 52:       FileUtils.rm_rf path
 53: 
 54:       unless File.exist? path then
 55:         say "*** Removed specs cache ***"
 56:       else
 57:         unless File.writable? path then
 58:           say "*** Unable to remove source cache (write protected) ***"
 59:         else
 60:           say "*** Unable to remove source cache ***"
 61:         end
 62: 
 63:         terminate_interaction 1
 64:       end
 65:     end
 66: 
 67:     if options[:add] then
 68:       source_uri = options[:add]
 69:       uri = URI.parse source_uri
 70: 
 71:       begin
 72:         Gem::SpecFetcher.fetcher.load_specs uri, 'specs'
 73:         Gem.sources << source_uri
 74:         Gem.configuration.write
 75: 
 76:         say "#{source_uri} added to sources"
 77:       rescue URI::Error, ArgumentError
 78:         say "#{source_uri} is not a URI"
 79:         terminate_interaction 1
 80:       rescue Gem::RemoteFetcher::FetchError => e
 81:         say "Error fetching #{source_uri}:\n\t#{e.message}"
 82:         terminate_interaction 1
 83:       end
 84:     end
 85: 
 86:     if options[:remove] then
 87:       source_uri = options[:remove]
 88: 
 89:       unless Gem.sources.include? source_uri then
 90:         say "source #{source_uri} not present in cache"
 91:       else
 92:         Gem.sources.delete source_uri
 93:         Gem.configuration.write
 94: 
 95:         say "#{source_uri} removed from sources"
 96:       end
 97:     end
 98: 
 99:     if options[:update] then
100:       fetcher = Gem::SpecFetcher.fetcher
101: 
102:       Gem.sources.each do |update_uri|
103:         update_uri = URI.parse update_uri
104:         fetcher.load_specs update_uri, 'specs'
105:         fetcher.load_specs update_uri, 'latest_specs'
106:       end
107: 
108:       say "source cache successfully updated"
109:     end
110: 
111:     if options[:list] then
112:       say "*** CURRENT SOURCES ***"
113:       say
114: 
115:       Gem.sources.each do |source|
116:         say source
117:       end
118:     end
119:   end