Mercurial > kallithea
view rhodecode/lib/celerylib/__init__.py @ 1547:fbc762ae3496 beta
unified generation of repo groups choices
added on-the-fly conversion to new repository groups format (supporting path as a link)
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Tue, 11 Oct 2011 23:39:03 +0200 |
parents | 191f3f08236d |
children | 752b0a7b7679 2755c11c90d8 |
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# -*- coding: utf-8 -*- """ rhodecode.lib.celerylib.__init__ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ celery libs for RhodeCode :created_on: Nov 27, 2010 :author: marcink :copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com> :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 hashlib import md5 from decorator import decorator from pylons import config from vcs.utils.lazy import LazyProperty from rhodecode.lib import str2bool from rhodecode.lib.pidlock import DaemonLock, LockHeld from celery.messaging import establish_connection log = logging.getLogger(__name__) try: CELERY_ON = str2bool(config['app_conf'].get('use_celery')) except KeyError: CELERY_ON = False class ResultWrapper(object): def __init__(self, task): self.task = task @LazyProperty def result(self): return self.task def run_task(task, *args, **kwargs): 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') 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(str, params))).hexdigest() return lockkey def locked_task(func): def __wrapper(func, *fargs, **fkwargs): lockkey = __get_lockkey(func, *fargs, **fkwargs) lockkey_path = config['here'] 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)