mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-12-22 15:34:59 -05:00
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# Copyright 2017 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 traceback
|
|
from io import StringIO
|
|
from types import TracebackType
|
|
from typing import Optional, Tuple, Type
|
|
|
|
|
|
class LogFormatter(logging.Formatter):
|
|
"""Log formatter which gives more detail for exceptions
|
|
|
|
This is the same as the standard log formatter, except that when logging
|
|
exceptions [typically via log.foo("msg", exc_info=1)], it prints the
|
|
sequence that led up to the point at which the exception was caught.
|
|
(Normally only stack frames between the point the exception was raised and
|
|
where it was caught are logged).
|
|
"""
|
|
|
|
def formatException(
|
|
self,
|
|
ei: Tuple[
|
|
Optional[Type[BaseException]],
|
|
Optional[BaseException],
|
|
Optional[TracebackType],
|
|
],
|
|
) -> str:
|
|
sio = StringIO()
|
|
(typ, val, tb) = ei
|
|
|
|
# log the stack above the exception capture point if possible, but
|
|
# check that we actually have an f_back attribute to work around
|
|
# https://twistedmatrix.com/trac/ticket/9305
|
|
|
|
if tb and hasattr(tb.tb_frame, "f_back"):
|
|
sio.write("Capture point (most recent call last):\n")
|
|
traceback.print_stack(tb.tb_frame.f_back, None, sio)
|
|
|
|
traceback.print_exception(typ, val, tb, None, sio)
|
|
s = sio.getvalue()
|
|
sio.close()
|
|
if s[-1:] == "\n":
|
|
s = s[:-1]
|
|
return s
|