main.py 文件源码

def configure_logging(options):
    '''Configure log-level and logging handlers.

    :param bool quiet:
        If *True*, do not configure a console handler.
        Defaults to *False*.
    :param bool verbose:
        If *True*, set the log-level for the console handler
        to DEBUG. Has no effect if ``quiet`` is *True*.
        Defaults to *False*.
    :param str logfile:
        If given, set up a RotatingFileHandler to receive logging output.
        Should be the absolute path to the desired logfile
        or special value "syslog".
        Defaults to *None* (no logfile).
    :param int log_level:
        Level to use for ``logfile``.
        Must be one of the constants defined in the ``logging`` module
        (e.g. DEBUG, INFO, ...).
        Has no effect if ``logfile`` is not given.
    '''
    rootlog = logging.getLogger()
    rootlog.setLevel(logging.DEBUG)

    if not options.quiet:
        console_hdl = logging.StreamHandler()
        console_level = logging.DEBUG if options.verbose else logging.WARNING
        console_hdl.setLevel(console_level)
        console_hdl.setFormatter(logging.Formatter(CONSOLE_FMT))
        rootlog.addHandler(console_hdl)

    if options.logfile:
        if options.logfile == 'syslog':
            logfile_hdl = handlers.SysLogHandler(address='/dev/log')
            logfile_hdl.setFormatter(logging.Formatter(SYSLOG_FMT))
        else:
            logfile_hdl = handlers.RotatingFileHandler(options.logfile)
            logfile_hdl.setFormatter(logging.Formatter(LOGFILE_FMT))
        logfile_hdl.setLevel(options.log_level)
        rootlog.addHandler(logfile_hdl)