mediagoblin/mg_globals.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 In some places, we need to access the database, public_store, queue_store
  18 """
  19
  20 import gettext
  21 import pkg_resources
  22 import threading
  23
  24
  25 #############################
  26 # General mediagoblin globals
  27 #############################
  28
  29 # SQL database engine
  30 database = None
  31
  32 # beaker's cache manager
  33 cache = None
  34
  35 # should be the same as the
  36 public_store = None
  37 queue_store = None
  38
  39 # A WorkBenchManager
  40 workbench_manager = None
  41
  42 # A thread-local scope
  43 thread_scope = threading.local()
  44
  45 # gettext (this needs to default to English so it doesn't break
  46 #   in case we're running a script without the app like
  47 #   ./bin/gmg theme assetlink)
  48 thread_scope.translations = gettext.translation(
  49     'mediagoblin',
  50     pkg_resources.resource_filename(
  51         'mediagoblin', 'i18n'), ['en'], fallback=True)
  52
  53 # app and global config objects
  54 app_config = None
  55 global_config = None
  56
  57 # The actual app object
  58 app = None
  59
  60
  61 def setup_globals(**kwargs):
  62     """
  63     Sets up a bunch of globals in this module.
  64
  65     Takes the globals to setup as keyword arguments.  If globals are
  66     specified that aren't set as variables above, then throw an error.
  67     """
  68     from mediagoblin import mg_globals
  69
  70     for key, value in kwargs.iteritems():
  71         if not hasattr(mg_globals, key):
  72             raise AssertionError("Global %s not known" % key)
  73         setattr(mg_globals, key, value)