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synapse/tests/test_utils/logging_setup.py
Patrick Cloke 8e9fc28c6a
Reload the pyo3-log config when the Python logging config changes. (#14976)
Since pyo3-log is initialized very early in the Python start-up
it caches the state of the loggers before they're fully initialized
(and thus are essentially disabled). Whenever we reload the
logging configuration we now also tell pyo3-log to discard
any cached logging configuration it has; it will refetch the
current logging configuration from Python at the next point
it logs.

This fixes Rust log lines not appearing in the homeserver logs.
2023-02-03 08:27:31 -05:00

57 lines
1.7 KiB
Python

# Copyright 2019 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import os
import twisted.logger
from synapse.logging.context import LoggingContextFilter
from synapse.synapse_rust import reset_logging_config
class ToTwistedHandler(logging.Handler):
"""logging handler which sends the logs to the twisted log"""
tx_log = twisted.logger.Logger()
def emit(self, record):
log_entry = self.format(record)
log_level = record.levelname.lower().replace("warning", "warn")
self.tx_log.emit(
twisted.logger.LogLevel.levelWithName(log_level), "{entry}", entry=log_entry
)
def setup_logging():
"""Configure the python logging appropriately for the tests.
(Logs will end up in _trial_temp.)
"""
root_logger = logging.getLogger()
log_format = (
"%(asctime)s - %(name)s - %(lineno)d - "
"%(levelname)s - %(request)s - %(message)s"
)
handler = ToTwistedHandler()
formatter = logging.Formatter(log_format)
handler.setFormatter(formatter)
handler.addFilter(LoggingContextFilter())
root_logger.addHandler(handler)
log_level = os.environ.get("SYNAPSE_TEST_LOG_LEVEL", "ERROR")
root_logger.setLevel(log_level)
reset_logging_config()