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39 lines
1015 B
Python
39 lines
1015 B
Python
2 years ago
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"""Customize logging
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Defines custom logger class for the `logger.verbose(...)` method.
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init_logging() must be called before any other modules that call logging.getLogger.
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"""
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import logging
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from typing import Any, cast
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# custom log level for `--verbose` output
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# between DEBUG and INFO
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VERBOSE = 15
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class VerboseLogger(logging.Logger):
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"""Custom Logger, defining a verbose log-level
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VERBOSE is between INFO and DEBUG.
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"""
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def verbose(self, msg: str, *args: Any, **kwargs: Any) -> None:
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return self.log(VERBOSE, msg, *args, **kwargs)
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def getLogger(name: str) -> VerboseLogger:
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"""logging.getLogger, but ensures our VerboseLogger class is returned"""
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return cast(VerboseLogger, logging.getLogger(name))
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def init_logging() -> None:
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"""Register our VerboseLogger and VERBOSE log level.
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Should be called before any calls to getLogger(),
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i.e. in pip._internal.__init__
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"""
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logging.setLoggerClass(VerboseLogger)
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logging.addLevelName(VERBOSE, "VERBOSE")
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