Fix #1265: manage log rotation

* mandaye/config.py: add rotation options
 * mandaye/log.py: use TimedRotatingFileHandler
 * mandaye_server.py: cosmetic

mandaye/config.py

@@ -11,6 +11,13 @@ debug = False
 syslog = False
 log_file = '/var/log/mandaye/mandaye.log'
 log_level = logging.INFO
+# Log rotation
+# W[0-6] : weekly (0: Monday), D: day, ... (python doc)
+log_when = 'W6'
+# Every week
+log_interval = 1
+# BackupCount (keep one year of log)
+log_backup = 52
 
 # Template directory
 template_directory = 'mandaye/templates'
@@ -72,7 +79,7 @@ session_opts = {
         'session.expire': 3600,
 }
 
-# token timeout (for Vincennes)
+# token timeout
 # timeout in seconds
 token_timeout = 60
 

mandaye/log.py

@@ -1,8 +1,8 @@
 
 import logging
-from logging import FileHandler
-from logging.handlers import SysLogHandler
-from mandaye.config import log_level, syslog, log_file
+from logging.handlers import SysLogHandler, TimedRotatingFileHandler
+from mandaye.config import log_level, log_file, syslog
+from mandaye.config import log_when, log_interval, log_backup
 
 logger = logging.getLogger('mandaye')
 logger.setLevel(log_level)
@@ -16,7 +16,11 @@ else:
 
 # File logging
 if log_file:
-    filehandler = FileHandler(log_file)
+    filehandler = TimedRotatingFileHandler(log_file, when=log_when,
+            interval=log_interval, backupCount=log_backup)
+    filehandler.setFormatter(
+            logging.Formatter('%(asctime)s %(levelname)s %(message)s',
+            datefmt='%Y-%m-%d %H:%M:%S'))
     logger.addHandler(filehandler)
 else:
     filehandler = None

mandaye_server.py

@@ -22,7 +22,7 @@ def main():
     """ The ``gunicorn`` command line runner for launcing Gunicorn with
     generic WSGI applications.
     """
-    logger.info('Launching Mandaye ...')
+    logger.info('Mandaye start')
     WSGIApplication("%prog [OPTIONS]").run()
 
 if __name__ == "__main__":