def install_indicies
    verbose = Gem.configuration.really_verbose

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

    files = @files
    files.delete @quick_marshal_dir if files.include? @quick_dir

    if files.include? @quick_marshal_dir and not files.include? @quick_dir then
      files.delete @quick_marshal_dir

      dst_name = File.join(@dest_directory, @quick_marshal_dir_base)

      FileUtils.mkdir_p File.dirname(dst_name), :verbose => verbose
      FileUtils.rm_rf dst_name, :verbose => verbose
      FileUtils.mv(@quick_marshal_dir, dst_name,
                   :verbose => verbose, :force => true)
    end

    files = files.map do |path|
      path.sub(/^#{Regexp.escape @directory}\/?/, '') # HACK?
    end

    files.each do |file|
      src_name = File.join @directory, file
      dst_name = File.join @dest_directory, file

      FileUtils.rm_rf dst_name, :verbose => verbose
      FileUtils.mv(src_name, @dest_directory,
                   :verbose => verbose, :force => true)
    end
  end
#
Install generated indicies into the destination directory.