18 lines
688 B
Python
18 lines
688 B
Python
import os
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import sqlite3
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from datetime import datetime, timezone
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from pathlib import Path
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root=Path(__file__).resolve().parent.parent
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source=Path(os.getenv('SIMKEEP_DB',str(root/'data'/'simkeep.db'))).resolve()
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if not source.is_file():
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raise SystemExit('数据库尚未创建')
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directory=source.parent/'backups'
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directory.mkdir(mode=0o700,exist_ok=True)
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target=directory/f"simkeep-{datetime.now(timezone.utc).strftime('%Y%m%d-%H%M%S-%f')}.db"
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fd=os.open(target,os.O_WRONLY|os.O_CREAT|os.O_EXCL,0o600)
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os.close(fd)
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with sqlite3.connect(f'{source.as_uri()}?mode=ro',uri=True) as original,sqlite3.connect(target) as backup:
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original.backup(backup)
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print(f'备份完成：{target}')
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