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https://github.com/kuhyx/screen-locker.git
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Krzysztof kuhy Rudnicki
0411116f24
Silent-failure checker, mypy, pylint now clean. Hidden packages count as installed (pm list -u), pull gets a long timeout, wifi entries are matched by ro.serialno, and a missing log/drop dir is a warning. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WzxdWZ9CKZsNxtD5Jr9bYD
72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
"""The retirement's own memory: the anchor, the backup, the done stamp.
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One small JSON file (path: ``_runnerup_retire.STATE_FILE``). Written
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atomically and only by a real run (``--status`` and ``--dry-run`` never write),
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so the file is also the proof that a run happened. The anchor is stored once
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and never moved: a later, earlier-looking credit must not push the deadline.
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"""
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from __future__ import annotations
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from dataclasses import asdict, dataclass, fields
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from datetime import datetime
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import json
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import logging
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import os
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from pathlib import Path
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import tempfile
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_logger = logging.getLogger(__name__)
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@dataclass(frozen=True)
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class RetireState:
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"""What a previous run recorded (all ISO strings, empty until known)."""
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anchor_at: str = ""
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backup_path: str = ""
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done_at: str = ""
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done_reason: str = ""
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@property
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def anchor(self) -> datetime | None:
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"""The stored anchor as an aware datetime, or None."""
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return datetime.fromisoformat(self.anchor_at) if self.anchor_at else None
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def load_state(path: Path) -> RetireState:
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"""Read the state; a missing file is a fresh start, a bad one is loud."""
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if not path.exists():
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return RetireState()
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try:
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raw = json.loads(path.read_text(encoding="utf-8"))
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except (OSError, ValueError) as exc:
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_logger.warning(
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"Retire state %s is unreadable (%s): starting from scratch, so the "
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"anchor is re-derived and the uninstall re-checked",
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path,
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exc,
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)
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return RetireState()
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if not isinstance(raw, dict):
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_logger.warning("Retire state %s is not a JSON object: ignored", path)
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return RetireState()
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known = {f.name for f in fields(RetireState)}
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clean = {k: v for k, v in raw.items() if k in known and isinstance(v, str)}
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try:
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state = RetireState(**clean)
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_ = state.anchor
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except ValueError as exc:
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_logger.warning("Retire state %s holds a bad anchor (%s): ignored", path, exc)
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return RetireState()
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return state
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def save_state(path: Path, state: RetireState) -> None:
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"""Atomically replace the state file (creates the directory on first write)."""
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path.parent.mkdir(parents=True, exist_ok=True)
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fd, tmp = tempfile.mkstemp(dir=path.parent, prefix=".retire-", suffix=".tmp")
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with os.fdopen(fd, "w", encoding="utf-8") as handle:
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json.dump(asdict(state), handle, indent=2)
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Path(tmp).replace(path)
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