30 lines
1.2 KiB
Python
30 lines
1.2 KiB
Python
"""Block until the helpers' needs file grows (a helper appended something only Claude can do), then print the new
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part and exit, so the coordinator's background task wakes it. Also exits after --minutes as a heartbeat.
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py -3.12 -B tools/watch_needs.py [--file R:/Workspace/Scratch/helpers/needs.md] [--minutes 60]"""
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import argparse
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import time
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from pathlib import Path
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ap = argparse.ArgumentParser()
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ap.add_argument("--file", default=r"R:/Workspace/Scratch/helpers/needs.md")
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ap.add_argument("--minutes", type=float, default=60)
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args = ap.parse_args()
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path = Path(args.file)
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path.parent.mkdir(parents=True, exist_ok=True)
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path.touch(exist_ok=True)
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start = path.stat().st_size
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deadline = time.monotonic() + args.minutes * 60
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while time.monotonic() < deadline:
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size = path.stat().st_size
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if size > start:
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time.sleep(3) # let the writer finish its entry
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with path.open(encoding="utf-8", errors="replace") as f:
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f.seek(start)
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print(f.read().strip())
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raise SystemExit(0)
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if size < start: # the file was cleared: follow it from here
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start = size
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time.sleep(10)
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print(f"no new needs for {args.minutes:g} minutes")
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