86 lines
2.3 KiB
Python
86 lines
2.3 KiB
Python
from __future__ import annotations
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import logging
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import os
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import sys
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from logging.handlers import RotatingFileHandler
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from pathlib import Path
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from typing import Optional, Union
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def create_logger(
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name: str = "factuges-sync",
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*,
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level: int = logging.INFO,
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log_path: Optional[Union[str, Path]] = None,
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max_bytes: int = 5_000_000, # rotación opcional
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backup_count: int = 3,
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) -> logging.Logger:
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"""
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Crea un logger consistente para FactuGES Sync.
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Reglas:
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- SIEMPRE envia logs a stdout (Docker-friendly).
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- SOLO en producción escribe también a fichero si `log_path` está definido.
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- `log_path` puede ser `str` o `Path`.
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- Evita duplicar handlers.
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"""
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logger = logging.getLogger(name)
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logger.setLevel(level)
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# Si ya está configurado, no duplicamos handlers
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if logger.handlers:
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return logger
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formatter = logging.Formatter(
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"%(asctime)s - %(levelname)s - %(message)s"
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)
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# ------------------------------
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# 1) Handler de consola (siempre)
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# ------------------------------
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h_console = logging.StreamHandler(sys.stdout)
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h_console.setFormatter(formatter)
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logger.addHandler(h_console)
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# ------------------------------
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# 2) Handler de fichero (solo prod)
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# ------------------------------
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is_production = os.getenv("ENV") == "production"
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if log_path and is_production:
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p = Path(log_path)
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# Aseguramos directorios
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p.parent.mkdir(parents=True, exist_ok=True)
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# Puedes usar FileHandler simple, pero Rotating es más seguro.
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h_file = RotatingFileHandler(
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filename=str(p),
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maxBytes=max_bytes,
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backupCount=backup_count,
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encoding="utf-8",
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)
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h_file.setFormatter(formatter)
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logger.addHandler(h_file)
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# Verificación explícita
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try:
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test_msg = f"Log file active at: {p}"
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h_file.acquire()
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h_file.stream.write(f"{test_msg}\n")
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h_file.flush()
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h_file.release()
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logger.info(test_msg)
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except Exception as e:
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logger.error(f"ERROR: cannot write to log file {p}: {e}")
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raise
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return logger
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# logger "global" ya creado
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logger = create_logger()
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