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"""Debugging support."""
from __future__ import absolute_import, unicode_literals
import logging
from vine.utils import wraps
from kombu.five import items, python_2_unicode_compatible
from kombu.log import get_logger
__all__ = ['setup_logging', 'Logwrapped']
def setup_logging(loglevel=logging.DEBUG, loggers=['kombu.connection',
'kombu.channel']):
"""Setup logging to stdout."""
for logger_name in loggers:
logger = get_logger(logger_name)
logger.addHandler(logging.StreamHandler())
logger.setLevel(loglevel)
@python_2_unicode_compatible
class Logwrapped(object):
"""Wrap all object methods, to log on call."""
__ignore = ('__enter__', '__exit__')
def __init__(self, instance, logger=None, ident=None):
self.instance = instance
self.logger = get_logger(logger)
self.ident = ident
def __getattr__(self, key):
meth = getattr(self.instance, key)
if not callable(meth) or key in self.__ignore:
return meth
@wraps(meth)
def __wrapped(*args, **kwargs):
info = ''
if self.ident:
info += self.ident.format(self.instance)
info += '{0.__name__}('.format(meth)
if args:
info += ', '.join(map(repr, args))
if kwargs:
if args:
info += ', '
info += ', '.join('{k}={v!r}'.format(k=key, v=value)
for key, value in items(kwargs))
info += ')'
self.logger.debug(info)
return meth(*args, **kwargs)
return __wrapped
def __repr__(self):
return repr(self.instance)
def __dir__(self):
return dir(self.instance)
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