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| import re |
| from logging import handlers |
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| class EnhancedRotatingFileHandler(handlers.TimedRotatingFileHandler, |
| handlers.RotatingFileHandler): |
| """ |
| Handler for logging to a set of files, which switches from one file |
| to the next when the current file reaches a certain size, or at certain |
| timed intervals |
| @filename - log file name |
| @max_bytes - file size in bytes to rotate file |
| @interval - Duration to rotate file |
| @backup_count - Maximum number of files to retain |
| @encoding - file encoding |
| @when - 'when' events supported: |
| # S - Seconds |
| # M - Minutes |
| # H - Hours |
| # D - Days |
| # midnight - roll over at midnight |
| # W{0-6} - roll over on a certain day; 0 - Monday |
| Here we are defaulting rotation with minutes interval |
| """ |
| def __init__(self, filename, max_bytes=1, interval=60, backup_count=0, |
| encoding=None, when='M'): |
| max_bytes = max_bytes * 1024 * 1024 |
| handlers.TimedRotatingFileHandler.__init__(self, filename=filename, |
| when=when, |
| interval=interval, |
| backupCount=backup_count, |
| encoding=encoding) |
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| handlers.RotatingFileHandler.__init__(self, filename=filename, |
| mode='a', |
| maxBytes=max_bytes, |
| backupCount=backup_count, |
| encoding=encoding) |
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| |
| def shouldRollover(self, record): |
| return handlers.TimedRotatingFileHandler.shouldRollover(self, record) \ |
| or handlers.RotatingFileHandler.shouldRollover(self, record) |
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| |
| def doRollover(self): |
| self.suffix = "%Y-%m-%d_%H-%M-%S" |
| self.extMatch = r"^\d{4}-\d{2}-\d{2}_\d{2}-\d{2}-\d{2}(\.\w+)?$" |
| self.extMatch = re.compile(self.extMatch, re.ASCII) |
| handlers.TimedRotatingFileHandler.doRollover(self) |
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