__init__.py 文件源码

def initialise_logger(app):
    """
    Read environment config then initialise a 2MB rotating log.  Prod Log Level can be reduced to help diagnose Prod
    only issues.
    """

    log_dir = app.config['LOG_DIR']
    log_level = app.config['LOG_LEVEL']

    if not os.path.exists(log_dir):
        os.makedirs(log_dir)

    file_handler = RotatingFileHandler(log_dir + '/tasking-manager.log', 'a', 2 * 1024 * 1024, 3)
    file_handler.setLevel(log_level)
    file_handler.setFormatter(logging.Formatter(
        '%(asctime)s %(levelname)s: %(message)s [in %(pathname)s:%(lineno)d]'))

    app.logger.addHandler(file_handler)
    app.logger.setLevel(log_level)