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| # | |
| # Toyota Motor Europe NV/SA and its affiliated companies retain all intellectual | |
| # property and proprietary rights in and to this software and related documentation. | |
| # Any commercial use, reproduction, disclosure or distribution of this software and | |
| # related documentation without an express license agreement from Toyota Motor Europe NV/SA | |
| # is strictly prohibited. | |
| # | |
| import logging | |
| import sys | |
| from datetime import datetime | |
| import atexit | |
| from pathlib import Path | |
| def _colored(msg, color): | |
| colors = {'red': '\033[91m', 'green': '\033[92m', 'yellow': '\033[93m', 'normal': '\033[0m'} | |
| return colors[color] + msg + colors["normal"] | |
| class ColorFormatter(logging.Formatter): | |
| """ | |
| Class to make command line log entries more appealing | |
| Inspired by https://github.com/facebookresearch/detectron2 | |
| """ | |
| def formatMessage(self, record): | |
| """ | |
| Print warnings yellow and errors red | |
| :param record: | |
| :return: | |
| """ | |
| log = super().formatMessage(record) | |
| if record.levelno == logging.WARNING: | |
| prefix = _colored("WARNING", "yellow") | |
| elif record.levelno == logging.ERROR or record.levelno == logging.CRITICAL: | |
| prefix = _colored("ERROR", "red") | |
| else: | |
| return log | |
| return prefix + " " + log | |
| def get_logger(name, level=logging.DEBUG, root=False, log_dir=None): | |
| """ | |
| Replaces the standard library logging.getLogger call in order to make some configuration | |
| for all loggers. | |
| :param name: pass the __name__ variable | |
| :param level: the desired log level | |
| :param root: call only once in the program | |
| :param log_dir: if root is set to True, this defines the directory where a log file is going | |
| to be created that contains all logging output | |
| :return: the logger object | |
| """ | |
| logger = logging.getLogger(name) | |
| logger.setLevel(level) | |
| if root: | |
| # create handler for console | |
| console_handler = logging.StreamHandler(sys.stdout) | |
| console_handler.setLevel(level) | |
| formatter = ColorFormatter(_colored("[%(asctime)s %(name)s]: ", "green") + "%(message)s", | |
| datefmt="%m/%d %H:%M:%S") | |
| console_handler.setFormatter(formatter) | |
| logger.addHandler(console_handler) | |
| logger.propagate = False # otherwise root logger prints things again | |
| if log_dir is not None: | |
| # add handler to log to a file | |
| log_dir = Path(log_dir) | |
| if not log_dir.exists(): | |
| logger.info(f"Logging directory {log_dir} does not exist and will be created") | |
| log_dir.mkdir(parents=True) | |
| timestamp = datetime.now().strftime("%d-%m-%Y_%H-%M-%S") | |
| log_file = log_dir / f"{timestamp}.log" | |
| # open stream and make sure it will be closed | |
| stream = log_file.open(mode="w") | |
| atexit.register(stream.close) | |
| formatter = logging.Formatter("[%(asctime)s] %(name)s %(levelname)s: %(message)s", | |
| datefmt="%m/%d %H:%M:%S") | |
| file_handler = logging.StreamHandler(stream) | |
| file_handler.setLevel(level) | |
| file_handler.setFormatter(formatter) | |
| logger.addHandler(file_handler) | |
| return logger | |