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pmbootstrap/pmb/helpers/logging.py
Oliver Smith 96da7f161a
logging: reset style at the end of log line (MR 2272)
Fix a regression from my recent patch that made text like the following
green:
	*** text ****
We also have log messages that only start with ***, but do not end with
***, coming from "pmbootstrap aportgen". They indicate that a new aport
has been generated, but are not a headline for the coming commands.

Fix that the aportgen messages don't reset the colors at the end of the
line, and so the next line would start with the color.

Fixes: 6ba138b6 ("logging: print text between *** in green (MR 2263)")
2024-03-17 16:24:30 +00:00

136 lines
4.1 KiB
Python

# Copyright 2023 Oliver Smith
# SPDX-License-Identifier: GPL-3.0-or-later
import logging
import os
import sys
import pmb.config
logfd = None
class log_handler(logging.StreamHandler):
"""
Write to stdout and to the already opened log file.
"""
_args = None
def emit(self, record):
try:
msg = self.format(record)
# INFO or higher: Write to stdout
if (not self._args.details_to_stdout and
not self._args.quiet and
record.levelno >= logging.INFO):
stream = self.stream
styles = pmb.config.styles
msg_col = (
msg.replace(
"NOTE:",
f"{styles['BLUE']}NOTE:{styles['END']}",
1,
)
.replace(
"WARNING:",
f"{styles['YELLOW']}WARNING:{styles['END']}",
1,
)
.replace(
"ERROR:",
f"{styles['RED']}ERROR:{styles['END']}",
1,
)
.replace(
"DONE!",
f"{styles['GREEN']}DONE!{styles['END']}",
1,
)
.replace(
"*** ",
f"{styles['GREEN']}*** ",
1,
)
)
msg_col += styles["END"]
stream.write(msg_col)
stream.write(self.terminator)
self.flush()
# Everything: Write to logfd
msg = "(" + str(os.getpid()).zfill(6) + ") " + msg
logfd.write(msg + "\n")
logfd.flush()
except (KeyboardInterrupt, SystemExit):
raise
except BaseException:
self.handleError(record)
def add_verbose_log_level():
"""
Add a new log level "verbose", which is below "debug". Also monkeypatch
logging, so it can be used with logging.verbose().
This function is based on work by Voitek Zylinski and sleepycal:
https://stackoverflow.com/a/20602183
All stackoverflow user contributions are licensed as CC-BY-SA:
https://creativecommons.org/licenses/by-sa/3.0/
"""
logging.VERBOSE = 5
logging.addLevelName(logging.VERBOSE, "VERBOSE")
logging.Logger.verbose = lambda inst, msg, * \
args, **kwargs: inst.log(logging.VERBOSE, msg, *args, **kwargs)
logging.verbose = lambda msg, *args, **kwargs: logging.log(logging.VERBOSE,
msg, *args,
**kwargs)
def init(args):
"""
Set log format and add the log file descriptor to logfd, add the
verbose log level.
"""
global logfd
# Set log file descriptor (logfd)
if args.details_to_stdout:
logfd = sys.stdout
else:
# Require containing directory to exist (so we don't create the work
# folder and break the folder migration logic, which needs to set the
# version upon creation)
dir = os.path.dirname(args.log)
if os.path.exists(dir):
logfd = open(args.log, "a+")
else:
logfd = open(os.devnull, "a+")
if args.action != "init":
print(f"WARNING: Can't create log file in '{dir}', path"
" does not exist!")
# Set log format
root_logger = logging.getLogger()
root_logger.handlers = []
formatter = logging.Formatter("[%(asctime)s] %(message)s",
datefmt="%H:%M:%S")
# Set log level
add_verbose_log_level()
root_logger.setLevel(logging.DEBUG)
if args.verbose:
root_logger.setLevel(logging.VERBOSE)
# Add a custom log handler
handler = log_handler()
log_handler._args = args
handler.setFormatter(formatter)
root_logger.addHandler(handler)
def disable():
logger = logging.getLogger()
logger.disabled = True