cdist/cdist/log.py

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# 2010-2013 Nico Schottelius (nico-cdist at schottelius.org)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
import logging
import sys
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# Define additional cdist logging levels.
logging.OFF = logging.CRITICAL + 10 # disable logging
logging.addLevelName(logging.OFF, 'OFF')
logging.VERBOSE = logging.INFO - 5
logging.addLevelName(logging.VERBOSE, 'VERBOSE')
def _verbose(msg, *args, **kwargs):
logging.log(logging.VERBOSE, msg, *args, **kwargs)
logging.verbose = _verbose
logging.TRACE = logging.DEBUG - 5
logging.addLevelName(logging.TRACE, 'TRACE')
def _trace(msg, *args, **kwargs):
logging.log(logging.TRACE, msg, *args, **kwargs)
logging.trace = _trace
class DefaultLog(logging.Logger):
FORMAT = '%(levelname)s: %(message)s'
class StdoutFilter(logging.Filter):
def filter(self, rec):
return rec.levelno != logging.ERROR
class StderrFilter(logging.Filter):
def filter(self, rec):
return rec.levelno == logging.ERROR
def __init__(self, name):
super().__init__(name)
formatter = logging.Formatter(self.FORMAT)
self.addFilter(self)
stdout_handler = logging.StreamHandler(sys.stdout)
stdout_handler.addFilter(self.StdoutFilter())
stdout_handler.setLevel(logging.TRACE)
stdout_handler.setFormatter(formatter)
stderr_handler = logging.StreamHandler(sys.stderr)
stderr_handler.addFilter(self.StderrFilter())
stderr_handler.setLevel(logging.ERROR)
stderr_handler.setFormatter(formatter)
self.addHandler(stdout_handler)
self.addHandler(stderr_handler)
def filter(self, record):
"""Prefix messages with logger name"""
record.msg = self.name + ": " + str(record.msg)
return True
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def verbose(self, msg, *args, **kwargs):
self.log(logging.VERBOSE, msg, *args, **kwargs)
def trace(self, msg, *args, **kwargs):
self.log(logging.TRACE, msg, *args, **kwargs)
class ParallelLog(DefaultLog):
FORMAT = '%(levelname)s: [%(process)d]: %(message)s'
def setupDefaultLogging():
del logging.getLogger().handlers[:]
logging.setLoggerClass(DefaultLog)
def setupParallelLogging():
del logging.getLogger().handlers[:]
logging.setLoggerClass(ParallelLog)
setupDefaultLogging()