Coverage for src/tagmania/iac_tools/timing.py: 100%

1"""Utilities for logging operation durations.""" 

2 

3from __future__ import annotations 

4 

5import logging 

6import time 

7from collections.abc import Iterator 

8from contextlib import contextmanager 

9 

10 

11@contextmanager 

12def log_duration(logger: logging.Logger, label: str) -> Iterator[None]: 

13 """Log the wall-clock duration of the wrapped block at INFO level. 

14 

15 Emits the duration even if the wrapped block raises, so partial runs 

16 still produce a timing line. 

17 """ 

18 start = time.perf_counter() 

19 try: 

20 yield 

21 finally: 

22 elapsed = time.perf_counter() - start 

23 logger.info(f"{label} took {elapsed:.1f}s")