feat: allow override rootdir for generated configs

Author: antfu

packages/module/src/modules/config/generate.ts

@@ -55,7 +55,7 @@ export async function generateESLintConfig(
     },
   )
 
-  const dirs = getDirs(nuxt) || {}
+  const dirs = getDirs(nuxt, options) || {}
 
   for (const addon of addons) {
     const resolved = await addon.getConfigs()

packages/module/src/modules/config/utils.ts

@@ -1,8 +1,11 @@
 import type { Nuxt } from '@nuxt/schema'
 import { relative, resolve } from 'pathe'
 import type { NuxtESLintConfigOptions } from '@nuxt/eslint-config/flat'
+import type { ModuleOptions } from '../../types'
+
+export function getDirs(nuxt: Nuxt, options: ModuleOptions): NuxtESLintConfigOptions['dirs'] {
+  const rootDir = (typeof options.config === 'object' && options.config.rootDir) || nuxt.options.rootDir
 
-export function getDirs(nuxt: Nuxt): NuxtESLintConfigOptions['dirs'] {
   const dirs: Required<NuxtESLintConfigOptions['dirs']> = {
     pages: [],
     composables: [],
@@ -13,12 +16,12 @@ export function getDirs(nuxt: Nuxt): NuxtESLintConfigOptions['dirs'] {
     middleware: [],
     modules: [],
     servers: [],
-    root: [nuxt.options.rootDir],
+    root: [],
     src: [],
   }
 
   for (const layer of nuxt.options._layers) {
-    const r = (t: string) => relative(nuxt.options.rootDir, resolve(layer.config.srcDir, t.replace(/^~[/\\]/, '')))
+    const r = (t: string) => relative(rootDir, resolve(layer.config.srcDir, t.replace(/^~[/\\]/, '')))
 
     dirs.src.push(r(''))
     dirs.pages.push(r(nuxt.options.dir.pages || 'pages'))

packages/module/src/types.ts

@@ -26,6 +26,14 @@ export interface ConfigGenOptions extends NuxtESLintFeaturesOptions {
    * @default true
    */
   autoInit?: boolean
+
+  /**
+   * Override rootDir for the generated ESLint config
+   * If you generate ESLint config from a different directory, you can set this option
+   *
+   * @default nuxt.options.rootDir
+   */
+  rootDir?: string
 }
 
 export interface CheckerOptions {