setup-pre-commit

Development

在当前仓库设置 Husky pre-commit hooks，集成 lint-staged (Prettier)、类型检查和测试。适用于用户想添加 pre-commit hooks、设置 Husky、配置 lint-staged，或在提交时运行格式化、类型检查和测试时。

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Source SKILL.md: https://github.com/vinvcn/mattpocock-skills-zh-CN/blob/HEAD/skills/misc/setup-pre-commit/SKILL.md

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Setup Pre-Commit Hooks

What This Sets Up

Husky pre-commit hook
lint-staged 对所有 staged files 运行 Prettier
Prettier config（如果缺失）
pre-commit hook 中的 typecheck 和 test scripts

Steps

1. Detect package manager

检查 package-lock.json (npm)、pnpm-lock.yaml (pnpm)、yarn.lock (yarn)、bun.lockb (bun)。使用存在的那个。不清楚时默认 npm。

2. Install dependencies

作为 devDependencies 安装：

husky lint-staged prettier

3. Initialize Husky

npx husky init

这会创建 .husky/ dir，并向 package.json 添加 prepare: "husky"。

4. Create `.husky/pre-commit`

写入这个文件（Husky v9+ 不需要 shebang）：

npx lint-staged
npm run typecheck
npm run test

Adapt：把 npm 替换为检测到的 package manager。如果 repo 的 package.json 没有 typecheck 或 test script，就省略对应行并告知用户。

5. Create `.lintstagedrc`

{
  "*": "prettier --ignore-unknown --write"
}

6. Create `.prettierrc` (if missing)

只有没有 Prettier config 时才创建。使用这些 defaults：

{
  "useTabs": false,
  "tabWidth": 2,
  "printWidth": 80,
  "singleQuote": false,
  "trailingComma": "es5",
  "semi": true,
  "arrowParens": "always"
}

7. Verify

.husky/pre-commit 存在且可执行
.lintstagedrc 存在
package.json 中的 prepare script 是 "husky"
prettier config 存在
运行 npx lint-staged 验证可用

8. Commit

Stage 所有 changed/created files，并用 message 提交：Add pre-commit hooks (husky + lint-staged + prettier)

这会经过新的 pre-commit hooks，是一个不错的 smoke test。

Notes

Husky v9+ 不需要 hook files 中的 shebangs
prettier --ignore-unknown 会跳过 Prettier 无法 parse 的 files（images 等）
pre-commit 先运行 lint-staged（快，只针对 staged files），再运行完整 typecheck 和 tests