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# Software Management Providers
#
# Copyright (C) 2012-2013 Red Hat, Inc.  All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
# Authors: Michal Minar <miminar@redhat.com>
#

"""
Common utilities meant to be used only be ``yumdb`` subpackage.
"""

from itertools import chain
import inspect
import logging
import os

from lmi.software.util import cmpi_logging

def setup_logging(config):
    """
    This is meant to be used by ``YumWorker`` process to setup logging
    independent of what providers are using. Unfortunately ``YumWorker``
    can not use the same facilities as the rest of program, because
    logging is done through *broker*.
    """
    try:
        logging.config.dictConfig(config)
        cmpi_logging.logger = logging.getLogger('lmi.software.yumdb')
    except Exception:   #pylint: disable=W0703
        # logging is not set up but client expects us to work
        # all messages are dumped to /dev/null
        logging.config.dictConfig({
            'version' : 1,
            'disable_existing_loggers' : True,
            'handlers': {
                'null' : {
                    'class': 'logging.handlers.FileHandler',
                    'level': 'CRITICAL',
                    'filename': '/dev/null'
                }
            },
            'loggers' : {
                'root' : {
                    'level': 'CRITICAL',
                    'handlers' : ['null'],
                    'propagate' : False
                }
            }
        })