fix SyntaxWarning: name 'CELERY_ON' is used prior to global declaration

rhodecode/lib/celerylib/__init__.py

@@ -1,130 +1,130 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.lib.celerylib.__init__
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
     celery libs for RhodeCode
 
     :created_on: Nov 27, 2010
     :author: marcink
     :copyright: (C) 2010-2012 Marcin Kuzminski <[e-mail]>
     :license: GPLv3, see COPYING for more details.
 """
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
 import sys
 import socket
 import traceback
 import logging
 from os.path import dirname as dn, join as jn
 from pylons import config
 
 from hashlib import md5
 from decorator import decorator
 
 from rhodecode.lib.vcs.utils.lazy import LazyProperty
 from rhodecode import CELERY_ON, CELERY_EAGER
 from rhodecode.lib.utils2 import str2bool, safe_str
 from rhodecode.lib.pidlock import DaemonLock, LockHeld
 from rhodecode.model import init_model
 from rhodecode.model import meta
 from rhodecode.model.db import Statistics, Repository, User
 
 from sqlalchemy import engine_from_config
 
 from celery.messaging import establish_connection
 
 log = logging.getLogger(__name__)
 
 
 class ResultWrapper(object):
     def __init__(self, task):
         self.task = task
 
     @LazyProperty
     def result(self):
         return self.task
 
 
 def run_task(task, *args, **kwargs):
+    global CELERY_ON
     if CELERY_ON:
         try:
             t = task.apply_async(args=args, kwargs=kwargs)
             log.info('running task %s:%s' % (t.task_id, task))
             return t
 
         except socket.error, e:
             if isinstance(e, IOError) and e.errno == 111:
                 log.debug('Unable to connect to celeryd. Sync execution')
-                global CELERY_ON
                 CELERY_ON = False
             else:
                 log.error(traceback.format_exc())
         except KeyError, e:
                 log.debug('Unable to connect to celeryd. Sync execution')
         except Exception, e:
             log.error(traceback.format_exc())
 
     log.debug('executing task %s in sync mode' % task)
     return ResultWrapper(task(*args, **kwargs))
 
 
 def __get_lockkey(func, *fargs, **fkwargs):
     params = list(fargs)
     params.extend(['%s-%s' % ar for ar in fkwargs.items()])
 
     func_name = str(func.__name__) if hasattr(func, '__name__') else str(func)
 
     lockkey = 'task_%s.lock' % \
         md5(func_name + '-' + '-'.join(map(safe_str, params))).hexdigest()
     return lockkey
 
 
 def locked_task(func):
     def __wrapper(func, *fargs, **fkwargs):
         lockkey = __get_lockkey(func, *fargs, **fkwargs)
         lockkey_path = config['app_conf']['cache_dir']
 
         log.info('running task with lockkey %s' % lockkey)
         try:
             l = DaemonLock(file_=jn(lockkey_path, lockkey))
             ret = func(*fargs, **fkwargs)
             l.release()
             return ret
         except LockHeld:
             log.info('LockHeld')
             return 'Task with key %s already running' % lockkey
 
     return decorator(__wrapper, func)
 
 
 def get_session():
     if CELERY_ON:
         engine = engine_from_config(config, 'sqlalchemy.db1.')
         init_model(engine)
     sa = meta.Session()
     return sa
 
 
 def dbsession(func):
     def __wrapper(func, *fargs, **fkwargs):
         try:
             ret = func(*fargs, **fkwargs)
             return ret
         finally:
             if CELERY_ON and CELERY_EAGER is False:
                 meta.Session.remove()
 
     return decorator(__wrapper, func)