mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-17 15:24:53 +00:00
46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
flask.logging
|
|
~~~~~~~~~~~~~
|
|
|
|
Implements the logging support for Flask.
|
|
|
|
:copyright: (c) 2011 by Armin Ronacher.
|
|
:license: BSD, see LICENSE for more details.
|
|
"""
|
|
|
|
from __future__ import absolute_import
|
|
|
|
from logging import getLogger, StreamHandler, Formatter, getLoggerClass, DEBUG
|
|
|
|
|
|
def create_logger(app):
|
|
"""Creates a logger for the given application. This logger works
|
|
similar to a regular Python logger but changes the effective logging
|
|
level based on the application's debug flag. Furthermore this
|
|
function also removes all attached handlers in case there was a
|
|
logger with the log name before.
|
|
"""
|
|
Logger = getLoggerClass()
|
|
|
|
class DebugLogger(Logger):
|
|
def getEffectiveLevel(x):
|
|
if x.level == 0 and app.debug:
|
|
return DEBUG
|
|
return Logger.getEffectiveLevel(x)
|
|
|
|
class DebugHandler(StreamHandler):
|
|
def emit(x, record):
|
|
StreamHandler.emit(x, record) if app.debug else None
|
|
|
|
handler = DebugHandler()
|
|
handler.setLevel(DEBUG)
|
|
handler.setFormatter(Formatter(app.debug_log_format))
|
|
logger = getLogger(app.logger_name)
|
|
# just in case that was not a new logger, get rid of all the handlers
|
|
# already attached to it.
|
|
del logger.handlers[:]
|
|
logger.__class__ = DebugLogger
|
|
logger.addHandler(handler)
|
|
return logger
|