Synnefo » ./kamaki

#!/usr/bin/env python

# Copyright 2012 GRNET S.A. All rights reserved.

#

# Redistribution and use in source and binary forms, with or

# without modification, are permitted provided that the following

# conditions are met:

#

#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

#

#   2. Redistributions in binary form must reproduce the above

#      copyright notice, this list of conditions and the following

#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

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import logging

from os import environ

_logger = None

def init_logger_file(name, level='DEBUG'):

    logger = logging.getLogger(name)

    handler = logging.FileHandler(name + '.log')

    formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')

    handler.setFormatter(formatter)

    logger.addHandler(handler)

    level = getattr(logging, level, logging.DEBUG)

    logger.setLevel(level)

    global _logger

    _logger = logger

    return logger

def init_logger_stderr(name, level='DEBUG'):

    logger = logging.getLogger(name)

    from sys import stderr

    handler = logging.StreamHandler(stderr)

    formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')

    handler.setFormatter(formatter)

    logger.addHandler(handler)

    level = getattr(logging, level, logging.DEBUG)

    logger.setLevel(level)

    global _logger

    _logger = logger

    return logger

def debug(fmt, *args):

    global _logger

    if _logger is None:

        init_logger_stderr('logger', get_level())

    _logger.debug(fmt % args)

def get_level(default='INFO'):

    try:

        return environ['DEBUG_LEVEL']

    except:

        return default