class Gem::Commands::GenerateIndexCommand

# File rubygems/commands/generate_index_command.rb, line 12
def initialize
  super 'generate_index',
        'Generates the index files for a gem server directory',
        :directory => '.', :build_modern => true

  add_option '-d', '--directory=DIRNAME',
             'repository base dir containing gems subdir' do |dir, options|
    options[:directory] = File.expand_path dir
  end

  add_option '--[no-]modern',
             'Generate indexes for RubyGems',
             '(always true)' do |value, options|
    options[:build_modern] = value
  end

  deprecate_option('--modern', version: '4.0', extra_msg: 'Modern indexes (specs, latest_specs, and prerelease_specs) are always generated, so this option is not needed.')
  deprecate_option('--no-modern', version: '4.0', extra_msg: 'The `--no-modern` option is currently ignored. Modern indexes (specs, latest_specs, and prerelease_specs) are always generated.')

  add_option '--update',
             'Update modern indexes with gems added',
             'since the last update' do |value, options|
    options[:update] = value
  end
end

# File rubygems/commands/generate_index_command.rb, line 68
def execute
  # This is always true because it's the only way now.
  options[:build_modern] = true

  if not File.exist?(options[:directory]) or
     not File.directory?(options[:directory])
    alert_error "unknown directory name #{options[:directory]}."
    terminate_interaction 1
  else
    indexer = Gem::Indexer.new options.delete(:directory), options

    if options[:update]
      indexer.update_index
    else
      indexer.generate_index
    end
  end
end