lefthook.json

{
  "pre-commit": {
    "parallel": true,
    "commands": {
      "main-branch-check": {
        "only": [{ "ref": "main" }],
        "run": "exit 1",
        "fail_text": "Please switch to another branch before committing. Use `git switch -c <branch-name>`."
      },
      "prettier": {
        "run": "npx prettier {staged_files} --check --ignore-unknown",
        "fail_text": "Please fix the formatting issues before committing. Use `npm run format`."
      },
      "eslint": {
        "glob": "*.{mjs,ts}",
        "run": "npx eslint {staged_files}",
        "fail_text": "Please fix the ESLint issues before committing. Try `npx eslint --fix .`."
      },
      "markdownlint": {
        "glob": "*.md",
        "run": "npx markdownlint {staged_files}",
        "fail_text": "Please fix the markdownlint issues before committing. Try `npx markdownlint --fix .`."
      },
      "build": {
        "glob": "src/**",
        "run": "npm run build",
        "fail_text": "Please fix the build issues before committing. Try `npm run build`."
      },
      "test": {
        "glob": "{src,tests}/**",
        "run": "npm run test",
        "fail_text": "Please fix the test issues before committing. Try `npm run test:watch`."
      },
      "type-test": {
        "glob": "{src,type-tests}/**",
        "run": "npm run type-test",
        "fail_text": "Please fix the type test issues before committing. Try `npm run type-test:watch`."
      }
    }
  },
  "output": [
    "summary",
    "success",
    "failure",
    "execution",
    "execution_out",
    "execution_info",
    "skips"
  ]
}