Coverage for sn/logging.py : 77%

""" 

This module provides standardized logging for whole sentinel network. 

There are 2 preconfigured handlers: 

- syslog - INFO and higher severity 

- file under rotation - DEBUG and higher severity 

Expected usage in your script: 

``` 

import logging 

import sn 

logger = logging.getLogger("component_name") 

logger.info("I'm running!") 

``` 

Your logger will inherit INFO level from root logger. This is kind a fail-safe 

mechanism. If you need to use DEBUG level, you must enable it explicitly: 

``` 

import logging 

import sn 

logger = logging.getLogger("component_name") 

logger.setLevel(logging.DEBUG) 

logger.debug("Still running...") 

``` 

Please, do not change logging format for syslog handler. It will be parsed by 

TM. File handler is prefixed by current time, for better debugging. 

""" 

import sys 

import logging 

import logging.handlers 

formatter = logging.Formatter("sentinel: %(levelname)s [%(name)s.%(funcName)s:%(lineno)d] %(message)s", 

"%Y-%m-%d %H:%M:%S") 

time_formatter = logging.Formatter("[%(asctime)s] %(levelname)s [%(name)s.%(funcName)s:%(lineno)d] %(message)s", 

"%Y-%m-%d %H:%M:%S") 

syslog_handler = logging.handlers.SysLogHandler(address="/dev/log") 

syslog_handler.setFormatter(formatter) 

syslog_handler.setLevel(logging.INFO) 

file_handler = logging.handlers.RotatingFileHandler("sentinel.log", maxBytes=10*1024*1024, backupCount=10) 

file_handler.setFormatter(time_formatter) 

file_handler.setLevel(logging.DEBUG) 

root_logger = logging.getLogger() 

root_logger.setLevel(logging.INFO) 

root_logger.addHandler(syslog_handler) 

root_logger.addHandler(file_handler) 

def log_uncaught(exc_type, exc_value, exc_traceback): 

if issubclass(exc_type, KeyboardInterrupt): 

sys.__excepthook__(exc_type, exc_value, exc_traceback) 

return 

root_logger.exception("Uncaught exception", exc_info=(exc_type, exc_value, exc_traceback)) 

sys.__excepthook__(exc_type, exc_value, exc_traceback) 

sys.excepthook = log_uncaught