23 lines
654 B
Python
23 lines
654 B
Python
# -*- coding: utf-8 -*-
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"""通用工具函数"""
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import hashlib
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from datetime import datetime
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from pathlib import Path
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def ensure_dir(path: Path):
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"""确保目录存在"""
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path.mkdir(parents=True, exist_ok=True)
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def make_surrogate_key(*parts) -> int:
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"""
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生成代理键
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将多个字段值拼接后计算SHA1，取前8字节转为无符号64位整数
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"""
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raw = "|".join("" if p is None else str(p) for p in parts)
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h = hashlib.sha1(raw.encode("utf-8")).digest()[:8]
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return int.from_bytes(h, byteorder="big", signed=False)
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def now_local(tz) -> datetime:
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"""获取本地当前时间"""
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return datetime.now(tz)
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