微信小程序页面迁移校验之前 P5任务处理之前
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packages/shared/src/neozqyy_shared/repo_root.py
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82
packages/shared/src/neozqyy_shared/repo_root.py
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# -*- coding: utf-8 -*-
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"""仓库根目录校验工具 — 全仓共享。
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所有使用相对路径(docs/、export/、.kiro/ 等)的脚本,
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应在入口处调用 ensure_repo_root() 确保 cwd 正确。
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用法:
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from neozqyy_shared.repo_root import ensure_repo_root
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ensure_repo_root()
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行为:
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1. cwd 已是仓库根 → 直接返回
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2. cwd 不是根但能通过 __main__.__file__ 或调用栈推断 → 自动 chdir + 警告
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3. 无法定位 → 抛出 RuntimeError
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"""
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from __future__ import annotations
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import os
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import warnings
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from pathlib import Path
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# 仓库根的标志文件组合(同时存在才算)
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_MARKERS = ("pyproject.toml", ".kiro")
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def _is_repo_root(p: Path) -> bool:
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return (p / "pyproject.toml").is_file() and (p / ".kiro").is_dir()
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def _find_root_from_file(anchor: Path, max_depth: int = 8) -> Path | None:
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"""从给定文件路径向上搜索仓库根。"""
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current = anchor.resolve().parent
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for _ in range(max_depth):
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if _is_repo_root(current):
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return current
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parent = current.parent
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if parent == current:
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break
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current = parent
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return None
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def ensure_repo_root() -> Path:
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"""校验并确保 cwd 为仓库根目录。
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Returns:
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仓库根目录的 Path 对象。
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Raises:
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RuntimeError: 无法定位仓库根目录。
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"""
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cwd = Path.cwd()
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if _is_repo_root(cwd):
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return cwd
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# 策略 1:通过 __main__.__file__ 推断(脚本直接运行时可用)
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import __main__
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main_file = getattr(__main__, "__file__", None)
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if main_file:
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root = _find_root_from_file(Path(main_file))
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if root:
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os.chdir(root)
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warnings.warn(
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f"cwd 不是仓库根目录,已自动切换: {cwd} → {root}",
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stacklevel=2,
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)
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return root
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# 策略 2:通过本文件位置推断(packages/shared/src/neozqyy_shared/repo_root.py)
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root = _find_root_from_file(Path(__file__))
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if root:
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os.chdir(root)
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warnings.warn(
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f"cwd 不是仓库根目录,已自动切换: {cwd} → {root}",
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stacklevel=2,
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)
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return root
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raise RuntimeError(
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f"无法定位仓库根目录。当前 cwd={cwd}。"
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f"请在仓库根目录下运行脚本。"
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)
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