add_feed (Raggle::Engine)

    # File raggle, line 4831
        def Engine::add_feed(opts)
          matching_feed = false
          $config['feeds'].each { |feed|
            matching_feed = true if feed['url'] == opts['url']
          }
          # do not add duplicate feeds
          unless matching_feed
            %w{title refresh priority}.each { |i| opts[i] ||= $config["default_feed_#{i}"] }
            $config['feeds'].add(opts['title'], opts['url'], opts['refresh'],
                                 opts['lock_title?'], opts['save_items?'],
                                 (opts['site'] || ''), (opts['desc'] || ''),
                                 (opts['items'] || []), opts['image'],
                                 opts['category'], opts['force'],
                                 opts['priority'], opts['max_items'])

            # can't keep adding params to Feed::List#add forever :/
            $config['feeds'].get(-1)['max_items'] = opts['max_items'] if opts['max_items']
          else
            $new_status = $config['msg_added_existing']
          end
          # return whether we successfully added the feed
          !matching_feed
        end