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- # -*- coding: utf-8 -*-
- """
-
- The :program:`celery beat` command.
-
- .. program:: celery beat
-
- .. seealso::
-
- See :ref:`preload-options` and :ref:`daemon-options`.
-
- .. cmdoption:: --detach
-
- Detach and run in the background as a daemon.
-
- .. cmdoption:: -s, --schedule
-
- Path to the schedule database. Defaults to `celerybeat-schedule`.
- The extension '.db' may be appended to the filename.
- Default is {default}.
-
- .. cmdoption:: -S, --scheduler
-
- Scheduler class to use.
- Default is :class:`celery.beat.PersistentScheduler`.
-
- .. cmdoption:: --max-interval
-
- Max seconds to sleep between schedule iterations.
-
- .. cmdoption:: -f, --logfile
-
- Path to log file. If no logfile is specified, `stderr` is used.
-
- .. cmdoption:: -l, --loglevel
-
- Logging level, choose between `DEBUG`, `INFO`, `WARNING`,
- `ERROR`, `CRITICAL`, or `FATAL`.
-
- """
- from __future__ import absolute_import
-
- from functools import partial
-
- from celery.platforms import detached, maybe_drop_privileges
-
- from celery.bin.base import Command, Option, daemon_options
-
- __all__ = ['beat']
-
-
- class beat(Command):
- """Start the beat periodic task scheduler.
-
- Examples::
-
- celery beat -l info
- celery beat -s /var/run/celery/beat-schedule --detach
- celery beat -S djcelery.schedulers.DatabaseScheduler
-
- """
- doc = __doc__
- enable_config_from_cmdline = True
- supports_args = False
-
- def run(self, detach=False, logfile=None, pidfile=None, uid=None,
- gid=None, umask=None, working_directory=None, **kwargs):
- if not detach:
- maybe_drop_privileges(uid=uid, gid=gid)
- workdir = working_directory
- kwargs.pop('app', None)
- beat = partial(self.app.Beat,
- logfile=logfile, pidfile=pidfile, **kwargs)
-
- if detach:
- with detached(logfile, pidfile, uid, gid, umask, workdir):
- return beat().run()
- else:
- return beat().run()
-
- def get_options(self):
- c = self.app.conf
-
- return (
- (Option('--detach', action='store_true'),
- Option('-s', '--schedule',
- default=c.CELERYBEAT_SCHEDULE_FILENAME),
- Option('--max-interval', type='float'),
- Option('-S', '--scheduler', dest='scheduler_cls'),
- Option('-l', '--loglevel', default=c.CELERYBEAT_LOG_LEVEL)) +
- daemon_options(default_pidfile='celerybeat.pid') +
- tuple(self.app.user_options['beat'])
- )
-
-
- def main(app=None):
- beat(app=app).execute_from_commandline()
-
- if __name__ == '__main__': # pragma: no cover
- main()
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