/usr/lib/python2.7/dist-packages/celery/app/log.py is in python-celery 3.1.20-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 | # -*- coding: utf-8 -*-
"""
celery.app.log
~~~~~~~~~~~~~~
The Celery instances logging section: ``Celery.log``.
Sets up logging for the worker and other programs,
redirects stdouts, colors log output, patches logging
related compatibility fixes, and so on.
"""
from __future__ import absolute_import
import logging
import os
import sys
from logging.handlers import WatchedFileHandler
from kombu.log import NullHandler
from kombu.utils.encoding import set_default_encoding_file
from celery import signals
from celery._state import get_current_task
from celery.five import class_property, string_t
from celery.utils import isatty, node_format
from celery.utils.log import (
get_logger, mlevel,
ColorFormatter, ensure_process_aware_logger,
LoggingProxy, get_multiprocessing_logger,
reset_multiprocessing_logger,
)
from celery.utils.term import colored
__all__ = ['TaskFormatter', 'Logging']
MP_LOG = os.environ.get('MP_LOG', False)
class TaskFormatter(ColorFormatter):
def format(self, record):
task = get_current_task()
if task and task.request:
record.__dict__.update(task_id=task.request.id,
task_name=task.name)
else:
record.__dict__.setdefault('task_name', '???')
record.__dict__.setdefault('task_id', '???')
return ColorFormatter.format(self, record)
class Logging(object):
#: The logging subsystem is only configured once per process.
#: setup_logging_subsystem sets this flag, and subsequent calls
#: will do nothing.
_setup = False
def __init__(self, app):
self.app = app
self.loglevel = mlevel(self.app.conf.CELERYD_LOG_LEVEL)
self.format = self.app.conf.CELERYD_LOG_FORMAT
self.task_format = self.app.conf.CELERYD_TASK_LOG_FORMAT
self.colorize = self.app.conf.CELERYD_LOG_COLOR
def setup(self, loglevel=None, logfile=None, redirect_stdouts=False,
redirect_level='WARNING', colorize=None, hostname=None):
handled = self.setup_logging_subsystem(
loglevel, logfile, colorize=colorize, hostname=hostname,
)
if not handled:
if redirect_stdouts:
self.redirect_stdouts(redirect_level)
os.environ.update(
CELERY_LOG_LEVEL=str(loglevel) if loglevel else '',
CELERY_LOG_FILE=str(logfile) if logfile else '',
)
return handled
def redirect_stdouts(self, loglevel=None, name='celery.redirected'):
self.redirect_stdouts_to_logger(
get_logger(name), loglevel=loglevel
)
os.environ.update(
CELERY_LOG_REDIRECT='1',
CELERY_LOG_REDIRECT_LEVEL=str(loglevel or ''),
)
def setup_logging_subsystem(self, loglevel=None, logfile=None, format=None,
colorize=None, hostname=None, **kwargs):
if self.already_setup:
return
if logfile and hostname:
logfile = node_format(logfile, hostname)
self.already_setup = True
loglevel = mlevel(loglevel or self.loglevel)
format = format or self.format
colorize = self.supports_color(colorize, logfile)
reset_multiprocessing_logger()
ensure_process_aware_logger()
receivers = signals.setup_logging.send(
sender=None, loglevel=loglevel, logfile=logfile,
format=format, colorize=colorize,
)
if not receivers:
root = logging.getLogger()
if self.app.conf.CELERYD_HIJACK_ROOT_LOGGER:
root.handlers = []
get_logger('celery').handlers = []
get_logger('celery.task').handlers = []
get_logger('celery.redirected').handlers = []
# Configure root logger
self._configure_logger(
root, logfile, loglevel, format, colorize, **kwargs
)
# Configure the multiprocessing logger
self._configure_logger(
get_multiprocessing_logger(),
logfile, loglevel if MP_LOG else logging.ERROR,
format, colorize, **kwargs
)
signals.after_setup_logger.send(
sender=None, logger=root,
loglevel=loglevel, logfile=logfile,
format=format, colorize=colorize,
)
# then setup the root task logger.
self.setup_task_loggers(loglevel, logfile, colorize=colorize)
try:
stream = logging.getLogger().handlers[0].stream
except (AttributeError, IndexError):
pass
else:
set_default_encoding_file(stream)
# This is a hack for multiprocessing's fork+exec, so that
# logging before Process.run works.
logfile_name = logfile if isinstance(logfile, string_t) else ''
os.environ.update(_MP_FORK_LOGLEVEL_=str(loglevel),
_MP_FORK_LOGFILE_=logfile_name,
_MP_FORK_LOGFORMAT_=format)
return receivers
def _configure_logger(self, logger, logfile, loglevel,
format, colorize, **kwargs):
if logger is not None:
self.setup_handlers(logger, logfile, format,
colorize, **kwargs)
if loglevel:
logger.setLevel(loglevel)
def setup_task_loggers(self, loglevel=None, logfile=None, format=None,
colorize=None, propagate=False, **kwargs):
"""Setup the task logger.
If `logfile` is not specified, then `sys.stderr` is used.
Will return the base task logger object.
"""
loglevel = mlevel(loglevel or self.loglevel)
format = format or self.task_format
colorize = self.supports_color(colorize, logfile)
logger = self.setup_handlers(
get_logger('celery.task'),
logfile, format, colorize,
formatter=TaskFormatter, **kwargs
)
logger.setLevel(loglevel)
# this is an int for some reason, better not question why.
logger.propagate = int(propagate)
signals.after_setup_task_logger.send(
sender=None, logger=logger,
loglevel=loglevel, logfile=logfile,
format=format, colorize=colorize,
)
return logger
def redirect_stdouts_to_logger(self, logger, loglevel=None,
stdout=True, stderr=True):
"""Redirect :class:`sys.stdout` and :class:`sys.stderr` to a
logging instance.
:param logger: The :class:`logging.Logger` instance to redirect to.
:param loglevel: The loglevel redirected messages will be logged as.
"""
proxy = LoggingProxy(logger, loglevel)
if stdout:
sys.stdout = proxy
if stderr:
sys.stderr = proxy
return proxy
def supports_color(self, colorize=None, logfile=None):
colorize = self.colorize if colorize is None else colorize
if self.app.IS_WINDOWS:
# Windows does not support ANSI color codes.
return False
if colorize or colorize is None:
# Only use color if there is no active log file
# and stderr is an actual terminal.
return logfile is None and isatty(sys.stderr)
return colorize
def colored(self, logfile=None, enabled=None):
return colored(enabled=self.supports_color(enabled, logfile))
def setup_handlers(self, logger, logfile, format, colorize,
formatter=ColorFormatter, **kwargs):
if self._is_configured(logger):
return logger
handler = self._detect_handler(logfile)
handler.setFormatter(formatter(format, use_color=colorize))
logger.addHandler(handler)
return logger
def _detect_handler(self, logfile=None):
"""Create log handler with either a filename, an open stream
or :const:`None` (stderr)."""
logfile = sys.__stderr__ if logfile is None else logfile
if hasattr(logfile, 'write'):
return logging.StreamHandler(logfile)
return WatchedFileHandler(logfile)
def _has_handler(self, logger):
if logger.handlers:
return any(not isinstance(h, NullHandler) for h in logger.handlers)
def _is_configured(self, logger):
return self._has_handler(logger) and not getattr(
logger, '_rudimentary_setup', False)
def setup_logger(self, name='celery', *args, **kwargs):
"""Deprecated: No longer used."""
self.setup_logging_subsystem(*args, **kwargs)
return logging.root
def get_default_logger(self, name='celery', **kwargs):
return get_logger(name)
@class_property
def already_setup(cls):
return cls._setup
@already_setup.setter # noqa
def already_setup(cls, was_setup):
cls._setup = was_setup
|