mirror of
https://gitlab.postmarketos.org/postmarketOS/pmbootstrap.git
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f21c216a26
While at it, also remove unnecessary "#!/usr/bin/env python3" in files that only get imported, and adjust other empty/comment lines in the beginnings of the files for consistency. This makes files easier to read, and makes the pmbootstrap codebase more consistent with the build.postmarketos.org codebase.
98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
# Copyright 2020 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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import logging
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import os
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import sys
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class log_handler(logging.StreamHandler):
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"""
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Write to stdout and to the already opened log file.
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"""
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_args = None
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def emit(self, record):
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try:
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msg = self.format(record)
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# INFO or higher: Write to stdout
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if (not self._args.details_to_stdout and
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not self._args.quiet and
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record.levelno >= logging.INFO):
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stream = self.stream
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stream.write(msg)
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stream.write(self.terminator)
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self.flush()
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# Everything: Write to logfd
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msg = "(" + str(os.getpid()).zfill(6) + ") " + msg
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self._args.logfd.write(msg + "\n")
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self._args.logfd.flush()
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except (KeyboardInterrupt, SystemExit):
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raise
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except BaseException:
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self.handleError(record)
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def add_verbose_log_level():
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"""
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Add a new log level "verbose", which is below "debug". Also monkeypatch
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logging, so it can be used with logging.verbose().
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This function is based on work by Voitek Zylinski and sleepycal:
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https://stackoverflow.com/a/20602183
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All stackoverflow user contributions are licensed as CC-BY-SA:
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https://creativecommons.org/licenses/by-sa/3.0/
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"""
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logging.VERBOSE = 5
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logging.addLevelName(logging.VERBOSE, "VERBOSE")
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logging.Logger.verbose = lambda inst, msg, * \
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args, **kwargs: inst.log(logging.VERBOSE, msg, *args, **kwargs)
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logging.verbose = lambda msg, *args, **kwargs: logging.log(logging.VERBOSE, msg,
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*args, **kwargs)
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def init(args):
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"""
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Set log format and add the log file descriptor to args.logfd, add the
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verbose log level.
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"""
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# Set log file descriptor (logfd)
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if args.details_to_stdout:
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setattr(args, "logfd", sys.stdout)
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else:
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# Require containing directory to exist (so we don't create the work
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# folder and break the folder migration logic, which needs to set the
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# version upon creation)
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dir = os.path.dirname(args.log)
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if os.path.exists(dir):
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setattr(args, "logfd", open(args.log, "a+"))
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else:
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setattr(args, "logfd", open(os.devnull, "a+"))
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if args.action != "init":
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print("WARNING: Can't create log file in '" + dir + "', path"
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" does not exist!")
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# Set log format
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root_logger = logging.getLogger()
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root_logger.handlers = []
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formatter = logging.Formatter("[%(asctime)s] %(message)s",
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datefmt="%H:%M:%S")
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# Set log level
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add_verbose_log_level()
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root_logger.setLevel(logging.DEBUG)
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if args.verbose:
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root_logger.setLevel(logging.VERBOSE)
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# Add a custom log handler
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handler = log_handler()
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log_handler._args = args
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handler.setFormatter(formatter)
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root_logger.addHandler(handler)
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def disable():
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logger = logging.getLogger()
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logger.disabled = True
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