kapsikkum-unmanic – Rev 1
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
unmanic.unlogger.py
Written by: Josh.5 <jsunnex@gmail.com>
Date: 06 Jan 2019, (8:41 AM)
Copyright:
Copyright (C) Josh Sunnex - All Rights Reserved
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
OR OTHER DEALINGS IN THE SOFTWARE.
"""
import os
import logging
from unmanic.libs.singleton import SingletonType
class UnmanicLogger(object, metaclass=SingletonType):
_enable_log_to_file = None
stream_handler = None
file_handler = None
_settings = None
_logger = None
def __init__(self, log_to_file=True):
self._enable_log_to_file = log_to_file
# Create our default parent logger and set the default level to info
self._logger = logging.getLogger("Unmanic")
# Initially set this logger to INFO (once the config is applied, this may change)
self._logger.setLevel(logging.INFO)
# Prevent logging from being passed up the chain
self._logger.propagate = False
# Create formatter
self.formatter = logging.Formatter(
'%(asctime)s:%(levelname)s:%(name)s - %(message)s',
datefmt='%Y-%m-%dT%H:%M:%S'
)
# Add stream handler
if not self.stream_handler:
# Create file handler
self.stream_handler = logging.StreamHandler()
# Apply formatter
self.stream_handler.setFormatter(self.formatter)
# Set the log level of the stream handle
self.stream_handler.setLevel(logging.INFO)
# Add handler
self._logger.addHandler(self.stream_handler)
# Add file handler
self.setup_file_handler()
def setup_file_handler(self):
if self._enable_log_to_file and not self.file_handler and self._settings and self._settings.get_log_path():
# Create directory if not exists
if not os.path.exists(self._settings.get_log_path()):
os.makedirs(self._settings.get_log_path())
# Create file handler
log_file = os.path.join(self._settings.get_log_path(), 'unmanic.log')
self.file_handler = logging.handlers.TimedRotatingFileHandler(log_file, when='midnight', interval=1,
backupCount=7)
# Apply formatter
self.file_handler.setFormatter(self.formatter)
# Set log level of file handler...
if self._settings.get_debugging():
self.file_handler.setLevel(logging.DEBUG)
else:
self.file_handler.setLevel(logging.INFO)
# Set the log level of the stream handle always to error
self.stream_handler.setLevel(logging.CRITICAL)
# Add handler
self._logger.addHandler(self.file_handler)
def disable_file_handler(self, debugging=False):
# Set the log level of the stream handle back to INFO or DEBUG
if debugging:
self.stream_handler.setLevel(logging.DEBUG)
else:
self.stream_handler.setLevel(logging.INFO)
# Remove handler
self._logger.removeHandler(self.file_handler)
def enable_debugging(self):
logger = self.get_logger(__class__.__name__)
logger.info('Debug logging enabled')
self._logger.setLevel(logging.DEBUG)
def disable_debugging(self):
logger = self.get_logger(__class__.__name__)
logger.info('Debug logging disabled')
self._logger.setLevel(logging.INFO)
def setup_logger(self, settings):
logger = self.get_logger(__class__.__name__)
logger.info("Initialising file logger. All further logs should output to the 'unmanic.log' file")
# Set/Update our settings
self._settings = settings
if not self.file_handler:
self.setup_file_handler()
if self._settings.get_debugging():
self.enable_debugging()
else:
self.disable_debugging()
def get_logger(self, name=None):
if name:
logger = logging.getLogger("Unmanic." + name)
else:
logger = self._logger
return logger