mediagoblin/tools/files.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU Affero General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU Affero General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU Affero General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 from mediagoblin import mg_globals
  18
  19 import os
  20
  21 def _jointhat(thing):
  22     if type(thing) == type(list()) or\
  23             type(thing) == type(tuple()):
  24         filepath = ""
  25         for item in thing:
  26             filepath = os.path.join(filepath, item)
  27         return filepath
  28     else:
  29         raise TypeError, "expecting a list or tuple, {0} received".format(
  30             str(type(thing)))
  31
  32 def delete_media_files(media):
  33     """
  34     Delete all files associated with a MediaEntry
  35
  36     Arguments:
  37      - media: A MediaEntry document
  38     """
  39     no_such_files = []
  40     for listpath in media.media_files.itervalues():
  41         try:
  42             mg_globals.public_store.delete_file(
  43                 listpath)
  44         except OSError:
  45             no_such_files.append(_jointhat(listpath))
  46
  47     for attachment in media.attachment_files:
  48         try:
  49             mg_globals.public_store.delete_file(
  50                 attachment['filepath'])
  51         except OSError:
  52             no_such_files.append(_jointhat(attachment))
  53
  54     if no_such_files:
  55         # This breaks pep8 as far as I know
  56         raise OSError, ", ".join(no_such_files)