63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Zentrales Logging-Modul
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→ Unterstützt LOGLEVEL und LOGFILE aus der .env
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→ Plattformunabhängig (Windows/Linux)
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→ Erstellt automatisch das Log-Verzeichnis bei Bedarf
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→ Fällt bei ungültigem Log-Level sicher auf INFO zurück
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"""
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import logging
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import os
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from logging.handlers import RotatingFileHandler
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from pathlib import Path
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def safe_log_level(level_str: str) -> int:
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"""Wandelt einen Level-String in einen gültigen Logging-Level um."""
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levels = {
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"CRITICAL": logging.CRITICAL,
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"ERROR": logging.ERROR,
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"WARNING": logging.WARNING,
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"INFO": logging.INFO,
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"DEBUG": logging.DEBUG,
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"NOTSET": logging.NOTSET,
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}
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return levels.get(level_str.upper(), logging.INFO)
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LOGLEVEL = safe_log_level(os.getenv("LOGLEVEL", "INFO"))
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LOGFILE = os.getenv("LOGFILE") # z. B. logs/app.log
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def get_logger(name: str) -> logging.Logger:
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logger = logging.getLogger(name)
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if logger.handlers:
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return logger # Logger bereits konfiguriert
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logger.setLevel(LOGLEVEL)
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formatter = logging.Formatter("[%(asctime)s] %(levelname)s %(name)s: %(message)s")
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# Konsole
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console_handler = logging.StreamHandler()
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console_handler.setFormatter(formatter)
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logger.addHandler(console_handler)
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# Datei (optional)
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if LOGFILE:
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logfile_path = Path(LOGFILE)
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try:
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logfile_path.parent.mkdir(parents=True, exist_ok=True)
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file_handler = RotatingFileHandler(
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logfile_path, maxBytes=1_000_000, backupCount=3, encoding="utf-8"
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)
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file_handler.setFormatter(formatter)
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logger.addHandler(file_handler)
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except Exception as e:
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logger.warning(f"Konnte Logdatei nicht schreiben: {e}")
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return logger
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