45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
"""Logging for Python YQL."""
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import os
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import logging
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import logging.handlers
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LOG_DIRECTORY_DEFAULT = os.path.join(os.path.dirname(__file__), "../logs")
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LOG_DIRECTORY = os.environ.get("YQL_LOG_DIR", LOG_DIRECTORY_DEFAULT)
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LOG_LEVELS = {'debug': logging.DEBUG,
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'info': logging.INFO,
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'warning': logging.WARNING,
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'error': logging.ERROR,
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'critical': logging.CRITICAL}
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LOG_LEVEL = os.environ.get("YQL_LOGGING_LEVEL", 'debug')
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LOG_FILENAME = os.path.join(LOG_DIRECTORY, "python-yql.log")
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MAX_BYTES = 1024 * 1024
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log_level = LOG_LEVELS.get(LOG_LEVEL)
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yql_logger = logging.getLogger("python-yql")
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yql_logger.setLevel(LOG_LEVELS.get(LOG_LEVEL))
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class NullHandler(logging.Handler):
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def emit(self, record):
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pass
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def get_logger():
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"""Set-upt the logger if enabled or fallback to NullHandler."""
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if os.environ.get("YQL_LOGGING", False):
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if not os.path.exists(LOG_DIRECTORY):
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os.mkdir(LOG_DIRECTORY)
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log_handler = logging.handlers.RotatingFileHandler(
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LOG_FILENAME, maxBytes=MAX_BYTES,
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backupCount=5)
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formatter = logging.Formatter(
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"%(asctime)s - %(name)s - %(levelname)s - %(message)s")
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log_handler.setFormatter(formatter)
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else:
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log_handler = NullHandler()
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yql_logger.addHandler(log_handler)
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return yql_logger
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