SickGear/sickbeard/logger.py
2016-12-10 04:54:07 +00:00

301 lines
10 KiB
Python

#
# This file is part of SickGear.
#
# SickGear is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SickGear is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SickGear. If not, see <http://www.gnu.org/licenses/>.
from __future__ import with_statement
import codecs
import logging
import glob
import os
import re
import sys
import threading
import time
import zipfile
from logging.handlers import TimedRotatingFileHandler
import sickbeard
from sickbeard import classes
import sickbeard.helpers
try:
from lib.send2trash import send2trash
except ImportError:
pass
ERROR = logging.ERROR
WARNING = logging.WARNING
MESSAGE = logging.INFO
DEBUG = logging.DEBUG
DB = 5
reverseNames = {u'ERROR': ERROR, u'WARNING': WARNING, u'INFO': MESSAGE, u'DEBUG': DEBUG, u'DB': DB}
# suppress output with this handler
class NullHandler(logging.Handler):
def emit(self, record):
pass
class SBRotatingLogHandler(object):
def __init__(self, log_file):
self.log_file = log_file
self.log_file_path = log_file
self.h_file = None
self.h_console = None
self.console_logging = False
self.log_lock = threading.Lock()
self.log_types = ['sickbeard', 'tornado.application', 'tornado.general', 'imdbpy', 'subliminal']
self.log_types_null = ['tornado.access']
def __del__(self):
pass
def close_log(self, handler=None):
handlers = []
if not handler:
handlers = [self.h_file]
if None is not self.h_console:
handlers += [self.h_console]
elif not isinstance(handler, list):
handlers = [handler]
for handler in handlers:
for logger_name in self.log_types + self.log_types_null:
logging.getLogger(logger_name).removeHandler(handler)
handler.flush()
handler.close()
def init_logging(self, console_logging=False):
self.console_logging |= console_logging
self.log_file_path = os.path.join(sickbeard.LOG_DIR, self.log_file)
# get old handler for post switch-over closure
old_h_file = old_h_console = None
if self.h_file or self.h_console:
if self.h_file:
old_h_file = self.h_file
if self.h_console:
old_h_console = self.h_console
# add a new logging level DB
logging.addLevelName(5, 'DB')
if self.console_logging:
# get a console handler to output INFO or higher messages to sys.stderr
h_console = logging.StreamHandler()
h_console.setLevel((logging.INFO, logging.DEBUG)[sickbeard.DEBUG])
h_console.setFormatter(DispatchingFormatter(self._formatters(), logging.Formatter('%(message)s'), ))
self.h_console = h_console
# add the handler to the root logger
for logger_name in self.log_types:
logging.getLogger(logger_name).addHandler(h_console)
for logger_name in self.log_types_null:
logging.getLogger(logger_name).addHandler(NullHandler())
h_file = TimedCompressedRotatingFileHandler(self.log_file_path, logger=self)
h_file.setLevel(reverseNames[sickbeard.FILE_LOGGING_PRESET])
h_file.setFormatter(DispatchingFormatter(self._formatters(False), logging.Formatter('%(message)s'), ))
self.h_file = h_file
for logger_name in self.log_types:
logging.getLogger(logger_name).addHandler(h_file)
log_level = (logging.WARNING, logging.DEBUG)[sickbeard.DEBUG]
for logger_name in [x for x in self.log_types if 'sickbeard' != x]:
logging.getLogger(logger_name).setLevel(log_level)
logging.getLogger('sickbeard').setLevel(DB)
# as now logging in new log folder, close old handlers
if old_h_file:
self.close_log(old_h_file)
if old_h_console:
self.close_log(old_h_console)
def _formatters(self, log_simple=True):
fmt = {}
for logger_name in self.log_types:
source = (re.sub('(.*\.\w\w\w).*$', r'\1', logger_name).upper() + ' :: ', '')['sickbeard' == logger_name]
fmt.setdefault(logger_name, logging.Formatter(
'%(asctime)s %(levelname)' + ('-8', '')[log_simple] + 's ' + source
+ '%(message)s', ('%Y-%m-%d ', '')[log_simple] + '%H:%M:%S'))
return fmt
def log(self, to_log, log_level=MESSAGE):
with self.log_lock:
out_line = '%s :: %s' % (threading.currentThread().getName(), to_log)
sb_logger = logging.getLogger('sickbeard')
setattr(sb_logger, 'db', lambda *args: sb_logger.log(DB, *args))
# sub_logger = logging.getLogger('subliminal')
# imdb_logger = logging.getLogger('imdbpy')
# tornado_logger = logging.getLogger('tornado')
try:
if DEBUG == log_level:
sb_logger.debug(out_line)
elif MESSAGE == log_level:
sb_logger.info(out_line)
elif WARNING == log_level:
sb_logger.warning(out_line)
elif ERROR == log_level:
sb_logger.error(out_line)
# add errors to the UI logger
classes.ErrorViewer.add(classes.UIError(out_line))
elif DB == log_level:
sb_logger.db(out_line)
else:
sb_logger.log(log_level, out_line)
except ValueError:
pass
def log_error_and_exit(self, error_msg):
log(error_msg, ERROR)
if not self.console_logging:
sys.exit(error_msg.encode(sickbeard.SYS_ENCODING, 'xmlcharrefreplace'))
else:
sys.exit(1)
class DispatchingFormatter:
def __init__(self, formatters, default_formatter):
self._formatters = formatters
self._default_formatter = default_formatter
def __del__(self):
pass
def format(self, record):
formatter = self._formatters.get(record.name, self._default_formatter)
return formatter.format(record)
class TimedCompressedRotatingFileHandler(TimedRotatingFileHandler):
def __init__(self, log_file_path, logger=None, when='midnight', interval=1,
backup_count=16, encoding='utf-8', delay=False, utc=False):
super(TimedCompressedRotatingFileHandler, self).__init__(log_file_path, when, interval,
backup_count, encoding, delay, utc)
self.logger_instance = logger
"""
Extended version of TimedRotatingFileHandler that compress logs on rollover.
by Angel Freire <cuerty at gmail dot com>
"""
def doRollover(self):
"""
do a rollover; in this case, a date/time stamp is appended to the filename
when the rollover happens. However, you want the file to be named for the
start of the interval, not the current time. If there is a backup count,
then we have to get a list of matching filenames, sort them and remove
the one with the oldest suffix.
This method is modified from the one in TimedRotatingFileHandler.
example:
logger.TimedCompressedRotatingFileHandler(sickbeard.logger.sb_log_instance.log_file_path, when='M', interval=2,
logger=sickbeard.logger.sb_log_instance).doRollover()
"""
if not self.logger_instance:
return
# get the time that this sequence started at
t = self.rolloverAt - self.interval
start_time = time.localtime(t)
file_name = self.baseFilename.rpartition('.')[0]
dfn = '%s_%s.log' % (file_name, time.strftime(self.suffix, start_time))
self.delete_logfile(dfn)
self.logger_instance.close_log()
self.logger_instance.h_file = self.logger_instance.h_console = None
try:
self.stream.close()
except AttributeError:
pass
from sickbeard import encodingKludge
try:
encodingKludge.ek(os.rename, self.baseFilename, dfn)
except (StandardError, Exception):
pass
self.logger_instance.init_logging()
if self.encoding:
self.stream = codecs.open(self.baseFilename, 'w', self.encoding)
else:
self.stream = open(self.baseFilename, 'w')
zip_name = '%s.zip' % dfn.rpartition('.')[0]
self.delete_logfile(zip_name)
with zipfile.ZipFile(zip_name, 'w', zipfile.ZIP_DEFLATED) as zip_fh:
zip_fh.write(dfn, os.path.basename(dfn))
self.delete_logfile(dfn)
if 0 < self.backupCount:
# find the oldest log file and delete it
all_names = encodingKludge.ek(glob.glob, file_name + '_*')
if len(all_names) > self.backupCount:
all_names.sort()
self.delete_logfile(all_names[0])
self.rolloverAt = self.rolloverAt + self.interval
@staticmethod
def delete_logfile(filepath):
if os.path.exists(filepath):
if sickbeard.TRASH_ROTATE_LOGS:
send2trash(filepath)
else:
sickbeard.helpers.remove_file_failed(filepath)
sb_log_instance = SBRotatingLogHandler('sickgear.log')
def log(to_log, log_level=MESSAGE):
sb_log_instance.log(to_log, log_level)
def log_error_and_exit(error_msg):
sb_log_instance.log_error_and_exit(error_msg)
def close():
sb_log_instance.close_log()
def log_set_level():
if sb_log_instance.h_file:
sb_log_instance.h_file.setLevel(reverseNames[sickbeard.FILE_LOGGING_PRESET])
def current_log_file():
return os.path.join(sickbeard.LOG_DIR, sb_log_instance.log_file)