def add_local_remote_options
    add_option(:"Local/Remote", '-l', '--local',
               'Restrict operations to the LOCAL domain') do |value, options|
      options[:domain] = :local
    end

    add_option(:"Local/Remote", '-r', '--remote',
      'Restrict operations to the REMOTE domain') do |value, options|
      options[:domain] = :remote
    end

    add_option(:"Local/Remote", '-b', '--both',
               'Allow LOCAL and REMOTE operations') do |value, options|
      options[:domain] = :both
    end

    add_bulk_threshold_option
    add_clear_sources_option
    add_source_option
    add_proxy_option
    add_update_sources_option
  end
#
Add local/remote options to the command line parser.