# File lib/rubygems/indexer.rb, line 93
  def install_index
    verbose = Gem.configuration.really_verbose

    say "Moving index into production dir #{@dest_directory}" if verbose

    files = @master_index.files + @quick_index.files + @marshal_index.files

    files.each do |file|
      relative_name = file[/\A#{Regexp.escape @directory}.(.*)/, 1]
      dest_name = File.join @dest_directory, relative_name

      FileUtils.rm_rf dest_name, :verbose => verbose
      FileUtils.mv file, @dest_directory, :verbose => verbose
    end
  end