65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
# This file is part of Radicale Server - Calendar Server
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# Copyright © 2011-2016 Guillaume Ayoub
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Radicale. If not, see <http://www.gnu.org/licenses/>.
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"""
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Radicale logging module.
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Manage logging from a configuration file. For more information, see:
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http://docs.python.org/library/logging.config.html
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"""
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import logging
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import logging.config
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import os
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import signal
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import sys
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def configure_from_file(logger, filename, debug):
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logging.config.fileConfig(filename, disable_existing_loggers=False)
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if debug:
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logger.setLevel(logging.DEBUG)
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for handler in logger.handlers:
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handler.setLevel(logging.DEBUG)
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return logger
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def start(name="radicale", filename=None, debug=False):
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"""Start the logging according to the configuration."""
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logger = logging.getLogger(name)
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if filename and os.path.exists(filename):
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# Configuration taken from file
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configure_from_file(logger, filename, debug)
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# Reload config on SIGHUP (UNIX only)
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if hasattr(signal, "SIGHUP"):
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def handler(signum, frame):
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configure_from_file(logger, filename, debug)
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signal.signal(signal.SIGHUP, handler)
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else:
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# Default configuration, standard output
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if filename:
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logger.warning(
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"Logging configuration file '%s' not found, using stderr." %
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filename)
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handler = logging.StreamHandler(sys.stderr)
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handler.setFormatter(
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logging.Formatter("[%(thread)x] %(levelname)s: %(message)s"))
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logger.addHandler(handler)
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if debug:
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logger.setLevel(logging.DEBUG)
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return logger
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