| 1 | import logging |
| 2 | import sys |
| 3 | from pathlib import Path |
| 4 | |
| 5 | _APP_LOGGER_PREFIX = "dy-downloader" |
| 6 | _KNOWN_LOGGER_NAMES = set() |
| 7 | |
| 8 | |
| 9 | def setup_logger( |
| 10 | name: str = "dy-downloader", |
| 11 | level: int = logging.INFO, |
| 12 | log_file: str = None, |
| 13 | console_level: int = logging.ERROR, |
| 14 | ) -> logging.Logger: |
| 15 | logger = logging.getLogger(name) |
| 16 | logger.setLevel(level) |
| 17 | logger.propagate = False |
| 18 | _KNOWN_LOGGER_NAMES.add(name) |
| 19 | |
| 20 | if logger.handlers: |
| 21 | return logger |
| 22 | |
| 23 | formatter = logging.Formatter( |
| 24 | "%(asctime)s - %(name)s - %(levelname)s - %(message)s", |
| 25 | datefmt="%Y-%m-%d %H:%M:%S", |
| 26 | ) |
| 27 | |
| 28 | console_handler = logging.StreamHandler(sys.stderr) |
| 29 | console_handler.setLevel(console_level) |
| 30 | console_handler.setFormatter(formatter) |
| 31 | logger.addHandler(console_handler) |
| 32 | |
| 33 | if log_file: |
| 34 | log_path = Path(log_file) |
| 35 | if log_path.parent != Path("."): |
| 36 | log_path.parent.mkdir(parents=True, exist_ok=True) |
| 37 | file_handler = logging.FileHandler(log_file, encoding="utf-8") |
| 38 | file_handler.setLevel(level) |
| 39 | file_handler.setFormatter(formatter) |
| 40 | logger.addHandler(file_handler) |
| 41 | |
| 42 | return logger |
| 43 | |
| 44 | |
| 45 | def set_console_log_level(level: int) -> None: |
| 46 | for name in _KNOWN_LOGGER_NAMES: |
| 47 | logger = logging.getLogger(name) |
| 48 | for handler in logger.handlers: |
| 49 | if isinstance(handler, logging.StreamHandler) and not isinstance( |
| 50 | handler, logging.FileHandler |
| 51 | ): |
| 52 | handler.setLevel(level) |
| 53 |