Automatically Unrar Everything In A Folder

auto_unrar.rb

def episode(dir)
  dir.match "HDTV"
end

def unrar_delete(thefile,allfiles)
  if system "/opt/local/bin/unrar e -y %s > /dev/null" % thefile.gsub(' ',' ')
    for file in allfiles
      File.delete(file)
    end
    return true
  end
  return false
end

rootdir = "/Volumes/Filmer/Incoming";

Dir["%s/*"; % rootdir].each do |dir|
  if File.directory? dir and not dir.match "UNPACKED"
    ok = false
    Dir.chdir(dir)
    Dir['%s/*.rar' % dir].each do |rarfile|
      puts rarfile
      ok = unrar_delete(rarfile, Dir[rarfile.gsub("part01","part??")]) if rarfile.match "part01.rar"
      ok = unrar_delete(rarfile, Dir[rarfile.gsub(".rar",".r??")]) if not rarfile.match /part[0-9]{2}/
    end

    if ok
      if episode(dir)
        system "mv *.avi %s" % rootdir
        system "mv *.mkv %s" % rootdir
        Dir.chdir(rootdir)
        system "rm -r %s" % dir
      else
        File.rename(dir,"%s UNPACKED" % dir)
      end
    end
  end
end