old_contents: from optparse import make_option
  
  from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      option_list = BaseCommand.option_list + (
          make_option('--force',
              action='store_true',
              default=False,
              help='Force update of all files, even if the source files are older than the current compressed file.'
          ),
          make_option('--dry-run',
              action='store_false',
              default=True,
              help='Don\'t attempt to update files.'
          ),
          make_option('--no-cache-bust',
              dest='bust_cache',
              action='store_false',
              default=True,
              help='Don\'t update version cache.'
          )
      )
      help = 'Updates and compresses CSS and JS on-demand'
      args = '<group>'
  
      def handle(self, group=None, **options):
          from pipeline.packager import Packager
          packager = Packager(
              force=options.get('force', False),
              verbose=int(options.get('verbosity', 1)) >= 2
          )
  
          sync = options.get('dry_run', True)
          bust_cache = options.get('bust_cache', True)
  
          for package_name in packager.packages['css']:
              if group and package_name != group:
                  continue
              package = packager.package_for('css', package_name)
              if packager.verbose or packager.force:
                  print
                  message = "CSS Group '%s'" % package_name
                  print message
                  print len(message) * '-'
              packager.pack_stylesheets(package, sync=sync, bust_cache=bust_cache)
  
          for package_name in packager.packages['js']:
              if group and package_name != group:
                  continue
              package = packager.package_for('js', package_name)
              if packager.verbose or packager.force:
                  print
                  message = "JS Group '%s'" % package_name
                  print message
                  print len(message) * '-'
              packager.pack_javascripts(package, sync=sync, bust_cache=bust_cache)
  
new_contents: from optparse import make_option
  
  from django.core.management.base import BaseCommand
  
  
  class Command(BaseCommand):
      option_list = BaseCommand.option_list + (
          make_option('--force',
              action='store_true',
              default=False,
              help='Force update of all files, even if the source files are older than the current compressed file.'
          ),
          make_option('--dry-run',
              action='store_false',
              default=True,
              help='Don\'t attempt to update files.'
          ),
          make_option('--no-cache-bust',
              dest='bust_cache',
              action='store_false',
              default=True,
              help='Don\'t update version cache.'
          )
      )
      help = 'Updates and compresses CSS and JS on-demand'
      args = '<groups>'
  
      def handle(self, *args, **options):
          from pipeline.packager import Packager
          packager = Packager(
              force=options.get('force', False),
              verbose=int(options.get('verbosity', 1)) >= 2
          )
          
          sync = options.get('dry_run', True)
          bust_cache = options.get('bust_cache', True)
  
          for package_name in packager.packages['css']:
              if args and package_name not in args:
                  continue
              package = packager.package_for('css', package_name)
              if packager.verbose or packager.force:
                  print
                  message = "CSS Group '%s'" % package_name
                  print message
                  print len(message) * '-'
              packager.pack_stylesheets(package, sync=sync, bust_cache=bust_cache)
  
          for package_name in packager.packages['js']:
              if args and package_name not in args:
                  continue
              package = packager.package_for('js', package_name)
              if packager.verbose or packager.force:
                  print
                  message = "JS Group '%s'" % package_name
                  print message
                  print len(message) * '-'
              packager.pack_javascripts(package, sync=sync, bust_cache=bust_cache)
  
subject: allow to specifiy several group as syncompress args