torrent_manager.rb

require 'cgi'
require 'open-uri'

class TorrentManager

  def initialize
    # configuration options
    @list_file = "torrents.txt"
    @watch_dir = File.expand_path "~/watch"

    unless File.exists? @list_file
      puts "#{@list_file} file is missing."
      exit 2
    end

    unless File.directory? @watch_dir
      puts "#{@watch_dir} directory is missing."
      exit 2
    end

  end
  
  def get_remote_torrent_list
    @remote_torrents = File.open(@list_file).read.split
  end
  
  def download_torrent_files
    @remote_torrents.each do |torrent|
      puts "Downloading #{torrent}"
      download torrent
    end
  end

  def run
    get_remote_torrent_list
    download_torrent_files
  end
  
  private
  
  def download(url)
    local_file = File.join(@watch_dir, File.basename(url))
    # this was way easier than doing it in ruby
    `/opt/local/bin/wget -q -O #{local_file} #{url}`
  end

end

if $0 == __FILE__
  tm = TorrentManager.new
  tm.run
end

nice