alexei.dolgolyov
e2e1107df7
Lint & Test / test (push) Has been cancelled
- Replace URL-based image_source/url fields with image_asset_id/video_asset_id on StaticImagePictureSource and VideoCaptureSource (clean break, no migration) - Resolve asset IDs to file paths at runtime via AssetStore.get_file_path() - Add EntitySelect asset pickers for image/video in stream editor modal - Add notification sound configuration (global sound + per-app overrides) - Unify per-app color and sound overrides into single "Per-App Overrides" section - Persist notification history between server restarts - Add asset management system (upload, edit, delete, soft-delete) - Replace emoji buttons with SVG icons throughout UI - Various backend improvements: SQLite stores, auth, backup, MQTT, webhooks
39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
"""Atomic file write utilities."""
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import json
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import logging
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import os
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import tempfile
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from pathlib import Path
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logger = logging.getLogger(__name__)
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def atomic_write_json(file_path: Path, data: dict, indent: int = 2) -> None:
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"""Write JSON data to file atomically via temp file + rename.
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Prevents data corruption if the process crashes or loses power
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mid-write. The rename operation is atomic on most filesystems.
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"""
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file_path = Path(file_path)
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file_path.parent.mkdir(parents=True, exist_ok=True)
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# Write to a temp file in the same directory (same filesystem for atomic rename)
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fd, tmp_path = tempfile.mkstemp(
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dir=file_path.parent,
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prefix=f".{file_path.stem}_",
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suffix=".tmp",
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)
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try:
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with os.fdopen(fd, "w", encoding="utf-8") as f:
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json.dump(data, f, indent=indent, ensure_ascii=False)
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os.replace(tmp_path, file_path)
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except BaseException:
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# Clean up temp file on any error
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try:
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os.unlink(tmp_path)
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except OSError as e:
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logger.debug("Failed to clean up temp file %s: %s", tmp_path, e)
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pass
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raise
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