log.py 文件源码

def _setup_logging_from_flags():
    ops_root = getLogger().logger
    for handler in ops_root.handlers:
        ops_root.removeHandler(handler)

    logpath = _get_log_file_path()
    if logpath:
        filelog = logging.handlers.WatchedFileHandler(logpath)
        ops_root.addHandler(filelog)

        mode = int(options.logfile_mode, 8)
        st = os.stat(logpath)
        if st.st_mode != (stat.S_IFREG | mode):
            os.chmod(logpath, mode)

    for handler in ops_root.handlers:
        handler.setFormatter(logging.Formatter(fmt=options.log_format,
            datefmt=options.log_date_format))

    if options.verbose or options.debug:
        ops_root.setLevel(logging.DEBUG)
    else:
        ops_root.setLevel(logging.INFO)

    root = logging.getLogger()
    for handler in root.handlers:
        root.removeHandler(handler)
    handler = NullHandler()
    handler.setFormatter(logging.Formatter())
    root.addHandler(handler)