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chore: import upstream snapshot with attribution
2026-07-13 13:00:43 +08:00

50 lines
1.7 KiB
Python

"""Formatters for DeepTutor's stdlib logging pipeline."""
from __future__ import annotations
from datetime import datetime, timezone
import json
import logging
from typing import Any
from .context import LOG_CONTEXT_FIELDS, current_log_context
class ContextFilter(logging.Filter):
"""Attach contextvars and explicit record fields to each LogRecord."""
def filter(self, record: logging.LogRecord) -> bool:
context = current_log_context()
for key in LOG_CONTEXT_FIELDS:
value = getattr(record, key, None)
if value is not None:
context[key] = value
record.log_context = context
return True
class JsonlFormatter(logging.Formatter):
"""One structured JSON object per line."""
def format(self, record: logging.LogRecord) -> str:
entry: dict[str, Any] = {
"timestamp": datetime.fromtimestamp(record.created, timezone.utc).isoformat(),
"level": record.levelname,
"logger": record.name,
"message": record.getMessage(),
"context": getattr(record, "log_context", {}) or {},
}
if record.exc_info:
entry["exception"] = self.formatException(record.exc_info)
return json.dumps(entry, ensure_ascii=False, default=str)
class ConsoleFormatter(logging.Formatter):
"""Small human-readable formatter for local development."""
def format(self, record: logging.LogRecord) -> str:
context = getattr(record, "log_context", {}) or {}
stage = f" @{context['stage']}" if context.get("stage") else ""
task = f" #{context['task_id']}" if context.get("task_id") else ""
return f"{record.levelname:<7} {record.name}{stage}{task} - {record.getMessage()}"