core/logger.py

   1 # synarere -- a highly modular and stable IRC bot.
   2 # Copyright (C) 2010 Michael Rodriguez.
   3 # Rights to this code are documented in docs/LICENSE.
   4
   5 '''Logger facility.'''
   6
   7 # Import required Python module.
   8 import logging
   9
  10 # Import required Python function.
  11 from logging import handlers
  12
  13 # Import required core modules.
  14 import var
  15
  16 # Make these references to the real methods.
  17 debug, info, warning, error, critical = None, None, None, None, None
  18
  19 def get_level():
  20     '''Get the logging level.'''
  21
  22     if var.conf.get('logger', 'level')[0] == 'info':
  23         return logging.INFO
  24     elif var.conf.get('logger', 'level')[0] == 'warning':
  25         return logging.WARNING
  26     elif var.conf.get('logger', 'level')[0] == 'debug':
  27         return logging.DEBUG
  28     elif var.conf.get('logger', 'level')[0] == 'error':
  29         return logging.ERROR
  30     elif var.conf.get('logger', 'level')[0] == 'critical':
  31         return logging.CRITICAL
  32
  33     return logging.INFO
  34
  35 def init():
  36     '''Initialise the logging subsystem.'''
  37
  38     global debug, info, warning, error, critical
  39
  40     var.log = logging.getLogger('synarere')
  41
  42     # Set up logging to stderr if we're in foreground mode.
  43     if not var.fork:
  44         stream = logging.StreamHandler()
  45     else:
  46         stream = None
  47
  48     handler = handlers.RotatingFileHandler(filename=var.conf.get('logger', 'path')[0], maxBytes=var.conf.get('logger', 'max_size')[0], backupCount=var.conf.get('logger', 'max_logs')[0])
  49     formatter = logging.Formatter(var.conf.get('logger', 'format')[0])
  50
  51     handler.setFormatter(formatter)
  52
  53     if stream:
  54         stream_format = logging.Formatter(var.conf.get('logger', 'stream_format')[0])
  55         stream.setFormatter(stream_format)
  56         var.log.addHandler(stream)
  57
  58     var.log.addHandler(handler)
  59     var.log.setLevel(get_level())
  60
  61     debug, info, warning = var.log.debug, var.log.info, var.log.warning
  62     error, critical = var.log.error, var.log.critical