Add rootDir setting to eslint-plugin-next (#27918 )

## Introduction

This PR enables setting a `rootDir` for a Next.js project, and follows the same pattern used by [`@typescript-eslint/parser`](https://github.com/typescript-eslint/typescript-eslint/tree/master/packages/parser#parseroptionsproject).

## Details

Previously, users had to pass paths to the rule itself.
```js
module.exports = {
  rules: { 
    "@next/next/no-html-link-for-pages": [
      "error",
      // This could be a string, or array of strings.
      "/packages/my-app/pages",
    ],
  },
};
```

With this PR, this has been simplified (the previous implementation still works as expected).
```js
module.exports = {
  settings: { 
    next: {
      rootDir: "/packages/my-app",
    },
  },
  rules: { 
    "@next/next/no-html-link-for-pages": "error",
  },
};
```

Further, this rule allows the use of globs, again aligning with `@typescript-eslint/parser`.
```js
module.exports = {
  settings: { 
    next: {
      // Globs
      rootDir: "/packages/*",
      rootDir: "/packages/{app-a,app-b}",

      // Arrays
      rootDir: ["/app-a", "/app-b"],
      
      // Arrays with globs
      rootDir: ["/main-app", "/other-apps/*"],
  },
};
```

This enables users to either provide per-workspace configuration with overrides, or to use globs for situations like monorepos where the apps share a domain (micro-frontends).

This doesn't solve, but improves https://github.com/vercel/next.js/issues/26330.

## Feature

- [x] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [x] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have helpful link attached, see `contributing.md`

## Documentation / Examples

- [x] Make sure the linting passes

2021-08-11 10:37:55 +00:00

152 B

Raw Permalink Blame History

`@next/eslint-plugin-next`

Documentation for @next/eslint-plugin-next can be found at: https://nextjs.org/docs/basic-features/eslint#eslint-plugin

152 B Raw Permalink Blame History

@next/eslint-plugin-next

152 B

Raw Permalink Blame History

`@next/eslint-plugin-next`