Source code for lasso.logger

import logging

__all__ = ["WranglerLogger", "setupLogging"]


# for all the Wrangler logging needs!
WranglerLogger = logging.getLogger("WranglerLogger")


def setupLogging(infoLogFilename, debugLogFilename, logToConsole=True):
    """Sets up the logger.  The infoLog is terse, just gives the bare minimum of details
    so the network composition will be clear later.
    The debuglog is very noisy, for debugging.

    Pass none to either.
    Spews it all out to console too, if logToConsole is true.
    """
    # clear handlers if any exist already
    WranglerLogger.handlers = []

    # create a logger
    WranglerLogger.setLevel(logging.DEBUG)

    if infoLogFilename:
        infologhandler = logging.StreamHandler(open(infoLogFilename, "w"))
        infologhandler.setLevel(logging.INFO)
        infologhandler.setFormatter(
            logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
        )
        WranglerLogger.addHandler(infologhandler)

    if debugLogFilename:
        debugloghandler = logging.StreamHandler(open(debugLogFilename, "w"))
        debugloghandler.setLevel(logging.DEBUG)
        debugloghandler.setFormatter(
            logging.Formatter("%(asctime)s %(levelname)s %(message)s", "%Y-%m-%d %H:%M")
        )
        WranglerLogger.addHandler(debugloghandler)

    if logToConsole:
        consolehandler = logging.StreamHandler()
        consolehandler.setLevel(logging.DEBUG)
        consolehandler.setFormatter(
            logging.Formatter("%(name)-12s: %(levelname)-8s %(message)s")
        )
        WranglerLogger.addHandler(consolehandler)