text: from django.core.management.base import BaseCommand
  import os, re
  
  class Command(BaseCommand):
      help = "(Re)Generate versions of Images"
  
      def handle(self, *args, **options):
          from filebrowser.settings import EXTENSION_LIST, EXCLUDE, VERSIONS, EXTENSIONS
          from filebrowser.conf import fb_settings
          
          # Precompile regular expressions
          filter_re = []
          for exp in EXCLUDE:
             filter_re.append(re.compile(exp))
          for k,v in VERSIONS.items():
              exp = (r'_%s.(%s)') % (k, '|'.join(EXTENSION_LIST))
              filter_re.append(re.compile(exp))
              
          path = os.path.join(fb_settings.MEDIA_ROOT, fb_settings.DIRECTORY)
          
          # walkt throu the filebrowser directory
          # for all/new files (except file versions itself and excludes)
          for dirpath,dirnames,filenames in os.walk(path):
              for filename in filenames:
                  filtered = False
                  # no "hidden" files (stating with ".")
                  if filename.startswith('.'):
                      continue
                  # check the exclude list
                  for re_prefix in filter_re:
                      if re_prefix.search(filename):
                          filtered = True
                  if filtered:
                      continue
                  (tmp, extension) = os.path.splitext(filename)
                  if extension in EXTENSIONS["Image"]:
                      self.createVersions(os.path.join(dirpath, filename))
      
      def createVersions(self, path):
          print ("generating versions for: ", path)
          from filebrowser.settings import VERSIONS
          from filebrowser.functions import version_generator
          for version in VERSIONS:
              #print "                          ", version
              version_generator(path, version, True)
  