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7124acf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | """Keep a paid run's console output next to its result file (added 2026-09-23).
The result JSONs hold scores; the console holds the WHY — every rejected planner
attempt with its validator error, retrieval distances, per-turn steps. Before this, that
text lived only in whatever terminal or temp file launched the run, and was lost with it.
`start_run_log` tees stdout + stderr into `<results>/logs/<name>_<stamp>.log` for the
rest of the process. Call it first in `main`, before anything logs: structlog's default
logger binds the stream on first use. ANSI colour codes are stripped from the file.
"""
from __future__ import annotations
import re
import sys
from datetime import datetime
from pathlib import Path
from typing import TextIO
_ANSI = re.compile(r"\x1b\[[0-9;]*m")
class _Tee:
def __init__(self, console: TextIO, file: TextIO) -> None:
self._console, self._file = console, file
def write(self, s: str) -> int:
self._console.write(s)
self._file.write(_ANSI.sub("", s))
return len(s)
def flush(self) -> None:
self._console.flush()
self._file.flush()
def isatty(self) -> bool:
return self._console.isatty()
def __getattr__(self, name: str): # encoding, fileno, … — whatever callers ask for
return getattr(self._console, name)
def run_stamp() -> str:
return datetime.now().strftime("%Y-%m-%d_%H%M%S")
def start_run_log(results_dir: Path, name: str, stamp: str) -> Path:
"""Tee this process's stdout/stderr into `results_dir/logs/{name}_{stamp}.log`."""
logs = results_dir / "logs"
logs.mkdir(parents=True, exist_ok=True)
path = logs / f"{name}_{stamp}.log"
fh = path.open("w", encoding="utf-8")
sys.stdout = _Tee(sys.stdout, fh)
sys.stderr = _Tee(sys.stderr, fh)
print(f"[run log] {path}")
return path
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