rumba/log.py


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import logging

import sys

import multiprocessing


def setup():
    handler = logging.StreamHandler(sys.stdout)
    handler.lock = multiprocessing.RLock()
    logging.basicConfig(format='{asctime} | {levelname:3.3} | '
                               '{name:11.11} | {message}',
                        style='{',
                        datefmt='%H:%M:%S',
                        handlers=[handler],
                        level=logging.DEBUG)
    logging.addLevelName(logging.CRITICAL, 'CRT')
    logging.addLevelName(logging.ERROR, 'ERR')
    logging.addLevelName(logging.WARNING, 'WRN')
    logging.addLevelName(logging.INFO, 'INF')
    logging.addLevelName(logging.DEBUG, 'DBG')
    logging.getLogger('').setLevel(logging.ERROR)


# Used for the first call, in order to configure logging
def _get_logger_with_setup(name):
    setup()
    # Swap _get_logger implementation to the setup-less version.
    global _get_logger
    _get_logger = _get_logger_without_setup
    return logging.getLogger(name)


# Then this one is used.
def _get_logger_without_setup(name):
    return logging.getLogger(name)


_get_logger = _get_logger_with_setup


def get_logger(name):
    logger = _get_logger(name.split('.')[-1])
    logger.setLevel(logging.DEBUG)
    return logger