34 lines
1.2 KiB
Python
34 lines
1.2 KiB
Python
from __future__ import annotations
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import json
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import sys
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from datetime import datetime
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from pathlib import Path
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from typing import Any, Dict, Optional
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def utc_iso() -> str:
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return datetime.utcnow().replace(microsecond=0).isoformat() + "Z"
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class Logger:
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def __init__(self, log_path: Optional[str] = None):
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self.log_path = Path(log_path) if log_path else None
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if self.log_path:
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self.log_path.parent.mkdir(parents=True, exist_ok=True)
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def _write(self, level: str, msg: str, extra: Optional[Dict[str, Any]] = None) -> None:
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line = f"{utc_iso()} [{level}] {msg}"
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print(line, file=sys.stdout, flush=True)
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if self.log_path:
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payload = {"ts": utc_iso(), "level": level, "msg": msg, "extra": extra or {}}
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with self.log_path.open("a", encoding="utf-8") as f:
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f.write(json.dumps(payload, ensure_ascii=False) + "\n")
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def info(self, msg: str, extra: Optional[Dict[str, Any]] = None) -> None:
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self._write("INFO", msg, extra)
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def warn(self, msg: str, extra: Optional[Dict[str, Any]] = None) -> None:
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self._write("WARN", msg, extra)
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def error(self, msg: str, extra: Optional[Dict[str, Any]] = None) -> None:
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self._write("ERROR", msg, extra)
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