refactor: split schema to @nuxt/schema and simplify kit (#2059)

docs/package.json

@@ -12,7 +12,6 @@
     "@docus/github": "1.0.4",
     "@docus/social-image": "1.0.3",
     "@docus/theme": "1.2.2",
-    "@nuxt/kit": "link:../packages/kit",
     "@nuxt/typescript-build": "^2.1.0",
     "fs-extra": "^10.0.0",
     "jiti": "^1.12.9",

docs/scripts/gen-docs.ts

@@ -117,7 +117,7 @@ async function generateDocs ({ configFile, configTemplate }) {
   const start = Date.now()
   console.log(`Updating docs on ${configFile}`)
   const template = await readFile(configTemplate, 'utf8')
-  const rootSchema = require('../../packages/kit/schema/config.schema.json') as Schema
+  const rootSchema = require('../../packages/schema/schema/config.schema.json') as Schema
   const keys = Object.keys(rootSchema.properties).sort()
   let generatedDocs = ''
 

docs/scripts/make-schema.sh

@@ -4,5 +4,5 @@ set -e
 cd ..
 yarn="node `pwd`/.yarn/releases/yarn-*.cjs"
 $yarn install
-cd packages/kit
+cd packages/schema
 $yarn prepack --stub

docs/yarn.lock

@@ -1472,10 +1472,6 @@
     untyped "^0.2.5"
     upath "^2.0.1"
 
-"@nuxt/kit@link:../packages/kit":
-  version "0.0.0"
-  uid ""
-
 "@nuxt/kit@npm:@nuxt/kit-edge":
   version "3.0.0-27247485.fb4359e"
   resolved "https://registry.yarnpkg.com/@nuxt/kit-edge/-/kit-edge-3.0.0-27247485.fb4359e.tgz#efbc5a2289857a698b5d04089ecf5fe9511f4bb2"
@@ -7328,16 +7324,6 @@ mlly@^0.3.0:
   resolved "https://registry.yarnpkg.com/mlly/-/mlly-0.3.0.tgz#5705b2a95551d79ad33feedc046daf7c6d079748"
   integrity sha512-6XphOVPsnIzuqNYlcZPMJhaMDDdrEgbLUlA7BPis8O0kkLPbOVA8GcXGeICGcnDotCtTkxAEWBT+FlhywrXTmg==
 
-mlly@^0.3.13:
-  version "0.3.13"
-  resolved "https://registry.yarnpkg.com/mlly/-/mlly-0.3.13.tgz#5433261f38ccebba6f72fabda863a4dfc84b16d8"
-  integrity sha512-EXpbSPqSQLR9NEdB25uoyIYLSUvAqDEI7wUeM1HwXHsPF5Gx7cP7kuby5Mz2LfCPxBrgMnbcyPhcTCJRTQ+uvA==
-
-mlly@^0.3.6:
-  version "0.3.10"
-  resolved "https://registry.yarnpkg.com/mlly/-/mlly-0.3.10.tgz#cf3353565c84e951311c46c8d2c8b320d90f9eb3"
-  integrity sha512-vD3A7naDtIOqHYZhnYUrECRO6UODWNqz6T0TS/pxwolzVoWKX/mXJF1XSM3qxruCDtkzJbzJPgesByihY/r3EA==
-
 move-concurrently@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"
@@ -8170,15 +8156,6 @@ pkg-types@^0.2.1:
   dependencies:
     jsonc-parser "^3.0.0"
 
-pkg-types@^0.3.1:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/pkg-types/-/pkg-types-0.3.1.tgz#d7a8b69efb8777a05afc5aabfc259a29a5d6d159"
-  integrity sha512-BjECNgz/tsyqg0/T4Z/U7WbFQXUT24nfkxPbALcrk/uHVeZf9MrGG4tfvYtu+jsrHCFMseLQ6woQddDEBATw3A==
-  dependencies:
-    jsonc-parser "^3.0.0"
-    mlly "^0.3.6"
-    pathe "^0.2.0"
-
 plausible-tracker@^0.3.4:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/plausible-tracker/-/plausible-tracker-0.3.4.tgz#6c4fb5888f62d0ab9b069fef7e3a06e2e728c65c"
@@ -10253,11 +10230,6 @@ std-env@^2.2.1, std-env@^2.3.0, std-env@^2.3.1:
   dependencies:
     ci-info "^3.1.1"
 
-std-env@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/std-env/-/std-env-3.0.1.tgz#bc4cbc0e438610197e34c2d79c3df30b491f5182"
-  integrity sha512-mC1Ps9l77/97qeOZc+HrOL7TIaOboHqMZ24dGVQrlxFcpPpfCHpH+qfUT7Dz+6mlG8+JPA1KfBQo19iC/+Ngcw==
-
 stream-browserify@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.2.tgz#87521d38a44aa7ee91ce1cd2a47df0cb49dd660b"

packages/bridge/package.json

@@ -22,6 +22,7 @@
     "@nuxt/kit": "3.0.0",
     "@nuxt/nitro": "3.0.0",
     "@nuxt/postcss8": "^1.1.3",
+    "@nuxt/schema": "3.0.0",
     "@vitejs/plugin-legacy": "^1.6.2",
     "@vue/composition-api": "^1.4.0",
     "@vueuse/head": "^0.7.2",

packages/bridge/src/runtime/composables.ts

@@ -3,7 +3,7 @@ import type { CombinedVueInstance } from 'vue/types/vue'
 import type { MetaInfo } from 'vue-meta'
 import type VueRouter from 'vue-router'
 import type { Route } from 'vue-router'
-import type { RuntimeConfig } from '@nuxt/kit'
+import type { RuntimeConfig } from '@nuxt/schema'
 import { useNuxtApp } from './app'
 
 export { useLazyAsyncData } from './asyncData'

packages/bridge/src/vite/templates.ts

@@ -1,7 +1,7 @@
 import hash from 'hash-sum'
 import { resolve } from 'pathe'
 
-import type { Nuxt, NuxtApp } from '@nuxt/kit'
+import type { Nuxt, NuxtApp } from '@nuxt/schema'
 
 type TemplateContext = {
   nuxt: Nuxt;

packages/bridge/types.d.ts

@@ -1,5 +1,5 @@
 import type {} from '@nuxt/nitro'
-import type { NuxtConfig as _NuxtConfig } from '@nuxt/kit'
+import type { NuxtConfig as _NuxtConfig } from '@nuxt/schema'
 import type { MetaInfo } from 'vue-meta'
 
 export interface BridgeConfig {

packages/kit/build.config.ts

@@ -4,27 +4,11 @@ export default defineBuildConfig({
   declaration: true,
   emitCJS: false,
   entries: [
-    {
-      input: 'src/config/schema/index',
-      outDir: 'schema',
-      name: 'config',
-      builder: 'untyped',
-      defaults: {
-        rootDir: '/project/'
-      }
-    },
     'src/index'
   ],
   externals: [
+    '@nuxt/schema',
     'webpack',
-    'vite',
-    'nuxt',
-    'nuxt3',
-    // type imports
-    '@vue/compiler-core',
-    'vue-meta',
-    'rollup-plugin-visualizer',
-    'webpack-bundle-analyzer',
-    'vue'
+    'vite'
   ]
 })

packages/kit/package.json

@@ -7,25 +7,18 @@
   "main": "./dist/index.mjs",
   "types": "./dist/index.d.ts",
   "files": [
-    "dist",
-    "schema"
+    "dist"
   ],
   "scripts": {
     "prepack": "unbuild"
   },
-  "devDependencies": {
-    "@types/lodash.template": "^4",
-    "@types/semver": "^7",
-    "unbuild": "latest"
-  },
   "dependencies": {
+    "@nuxt/schema": "^3.0.0",
     "consola": "^2.15.3",
-    "create-require": "^1.1.1",
     "defu": "^5.0.0",
     "dotenv": "^10.0.0",
     "globby": "^11.0.4",
     "hash-sum": "^2.0.0",
-    "hookable": "^5.0.0",
     "jiti": "^1.12.9",
     "lodash.template": "^4.5.0",
     "mlly": "^0.3.13",
@@ -34,11 +27,14 @@
     "rc9": "^1.2.0",
     "scule": "^0.2.1",
     "semver": "^7.3.5",
-    "std-env": "^3.0.1",
-    "ufo": "^0.7.9",
     "unctx": "^1.0.2",
     "untyped": "^0.3.0"
   },
+  "devDependencies": {
+    "@types/lodash.template": "^4",
+    "@types/semver": "^7",
+    "unbuild": "latest"
+  },
   "engines": {
     "node": "^14.16.0 || ^16.11.0 || ^17.0.0"
   }

packages/kit/src/build.ts

@@ -0,0 +1,123 @@
+import type { WebpackPluginInstance, Configuration as WebpackConfig } from 'webpack'
+import type { Plugin as VitePlugin, UserConfig as ViteConfig } from 'vite'
+import { useNuxt } from './context'
+
+export interface ExtendConfigOptions {
+  /**
+   * Install plugin on dev
+   *
+   * @default true
+   */
+   dev?: boolean
+   /**
+    * Install plugin on build
+    *
+    * @default true
+    */
+   build?: boolean
+}
+
+export interface ExtendWebpackConfigOptions extends ExtendConfigOptions {
+  /**
+   * Install plugin on server side
+   *
+   * @default true
+   */
+  server?: boolean
+  /**
+   * Install plugin on client side
+   *
+   * @default true
+   */
+  client?: boolean
+  /**
+   * Install plugin on modern build
+   *
+   * @default true
+   * @deprecated Nuxt 2 only
+   */
+  modern?: boolean
+}
+
+export interface ExtendViteConfigOptions extends ExtendConfigOptions {}
+
+/**
+ * Extend Webpack config
+ *
+ * The fallback function might be called multiple times
+ * when applying to both client and server builds.
+ */
+export function extendWebpackConfig (
+  fn: ((config: WebpackConfig)=> void),
+  options: ExtendWebpackConfigOptions = {}
+) {
+  const nuxt = useNuxt()
+
+  if (options.dev === false && nuxt.options.dev) {
+    return
+  }
+  if (options.build === false && nuxt.options.build) {
+    return
+  }
+
+  nuxt.hook('webpack:config', (configs: WebpackConfig[]) => {
+    if (options.server !== false) {
+      const config = configs.find(i => i.name === 'server')
+      if (config) {
+        fn(config)
+      }
+    }
+    if (options.client !== false) {
+      const config = configs.find(i => i.name === 'client')
+      if (config) {
+        fn(config)
+      }
+    }
+    // Nuxt 2 backwards compatibility
+    if (options.modern !== false) {
+      const config = configs.find(i => i.name === 'modern')
+      if (config) {
+        fn(config)
+      }
+    }
+  })
+}
+
+/**
+ * Extend Vite config
+ */
+export function extendViteConfig (
+  fn: ((config: ViteConfig) => void),
+  options: ExtendViteConfigOptions = {}
+) {
+  const nuxt = useNuxt()
+
+  if (options.dev === false && nuxt.options.dev) {
+    return
+  }
+  if (options.build === false && nuxt.options.build) {
+    return
+  }
+
+  nuxt.hook('vite:extend', ({ config }) => fn(config))
+}
+
+/**
+ * Append Webpack plugin to the config.
+ */
+export function addWebpackPlugin (plugin: WebpackPluginInstance, options?: ExtendWebpackConfigOptions) {
+  extendWebpackConfig((config) => {
+    config.plugins = config.plugins || []
+    config.plugins.push(plugin)
+  }, options)
+}
+
+/**
+ * Append Vite plugin to the config.
+ */
+export function addVitePlugin (plugin: VitePlugin, options?: ExtendViteConfigOptions) {
+  extendViteConfig((config) => {
+    config.plugins = config.plugins || []
+    config.plugins.push(plugin)
+  }, options)
+}

packages/kit/src/compatibility.ts

@@ -0,0 +1,65 @@
+import satisfies from 'semver/functions/satisfies.js' // npm/node-semver#381
+import type { Nuxt, NuxtCompatibilityConstraints, NuxtCompatibilityIssues } from '@nuxt/schema'
+import { useNuxt } from './context'
+
+/**
+ * Check version constraints and return incompatibility issues as an array
+ */
+export function checkNuxtCompatibilityIssues (constraints: NuxtCompatibilityConstraints, nuxt: Nuxt = useNuxt()): NuxtCompatibilityIssues {
+  const issues: NuxtCompatibilityIssues = []
+  if (constraints.nuxt) {
+    const nuxtVersion = getNuxtVersion(nuxt)
+    const nuxtSemanticVersion = nuxtVersion.split('-').shift()
+    if (!satisfies(nuxtSemanticVersion, constraints.nuxt)) {
+      issues.push({
+        name: 'nuxt',
+        message: `Nuxt version \`${constraints.nuxt}\` is required but currently using \`${nuxtVersion}\``
+      })
+    }
+  }
+  issues.toString = () => issues.map(issue => ` - [${issue.name}] ${issue.message}`).join('\n')
+  return issues
+}
+
+/**
+ * Check version constraints and throw a detailed error if has any, otherwise returns true
+ */
+export function ensureNuxtCompatibility (constraints: NuxtCompatibilityConstraints, nuxt: Nuxt = useNuxt()): true {
+  const issues = checkNuxtCompatibilityIssues(constraints, nuxt)
+  if (issues.length) {
+    throw new Error('Nuxt compatibility issues found:\n' + issues.toString())
+  }
+  return true
+}
+
+/**
+ * Check version constraints and return true if passed, otherwise returns false
+ */
+export function hasNuxtCompatibility (constraints: NuxtCompatibilityConstraints, nuxt: Nuxt = useNuxt()) {
+  return !checkNuxtCompatibilityIssues(constraints, nuxt).length
+}
+
+/**
+ * Check if current nuxt instance is version 2 legacy
+ */
+export function isNuxt2 (nuxt: Nuxt = useNuxt()) {
+  return getNuxtVersion(nuxt).startsWith('2.')
+}
+
+/**
+ * Check if current nuxt instance is version 3
+ */
+export function isNuxt3 (nuxt: Nuxt = useNuxt()) {
+  return getNuxtVersion(nuxt).startsWith('3.')
+}
+
+/**
+ * Get nuxt version
+ */
+export function getNuxtVersion (nuxt: Nuxt | any = useNuxt() /* TODO: LegacyNuxt */) {
+  const version = (nuxt?._version || nuxt?.version || nuxt?.constructor?.version || '').replace(/^v/g, '')
+  if (!version) {
+    throw new Error('Cannot determine nuxt version! Is currect instance passed?')
+  }
+  return version
+}

packages/kit/src/components.ts

@@ -0,0 +1,62 @@
+import { pascalCase, kebabCase } from 'scule'
+import type { ComponentsDir, Component } from '@nuxt/schema'
+import { useNuxt } from './context'
+import { ensureNuxtCompatibility } from './compatibility'
+
+/**
+ * Register a directory to be scanned for components and imported only when used.
+ *
+ * Requires Nuxt 2.13+
+ */
+export function addComponentsDir (dir: ComponentsDir) {
+  const nuxt = useNuxt()
+  ensureNuxtCompatibility({ nuxt: '>=2.13' }, nuxt)
+  nuxt.options.components = nuxt.options.components || []
+  nuxt.hook('components:dirs', (dirs) => { dirs.push(dir) })
+}
+
+export type AddComponentOptions = { name: string, filePath: string } & Partial<Exclude<Component,
+'shortPath' | 'async' | 'level' | 'import' | 'asyncImport'
+>>
+
+/**
+ * Register a directory to be scanned for components and imported only when used.
+ *
+ * Requires Nuxt 2.13+
+ */
+export function addComponent (opts: AddComponentOptions) {
+  const nuxt = useNuxt()
+  ensureNuxtCompatibility({ nuxt: '>=2.13' }, nuxt)
+  nuxt.options.components = nuxt.options.components || []
+
+  // Apply defaults
+  const component: Component = {
+    export: opts.export || 'default',
+    chunkName: 'components/' + kebabCase(opts.name),
+    global: opts.global ?? false,
+    kebabName: kebabCase(opts.name || ''),
+    pascalName: pascalCase(opts.name || ''),
+    prefetch: false,
+    preload: false,
+
+    // Nuxt 2 support
+    shortPath: opts.filePath,
+    async: false,
+    level: 0,
+    asyncImport: `() => import('${opts.filePath}').then(r => r['${opts.export || 'default'}'])`,
+    import: `require('${opts.filePath}')['${opts.export || 'default'}']`,
+
+    ...opts
+  }
+
+  nuxt.hook('components:extend', (components: Component[]) => {
+    const existingComponent = components.find(c => c.pascalName === component.pascalName || c.kebabName === component.kebabName)
+    if (existingComponent) {
+      const name = existingComponent.pascalName || existingComponent.kebabName
+      console.warn(`Overriding ${name} component.`)
+      Object.assign(existingComponent, component)
+    } else {
+      components.push(component)
+    }
+  })
+}

packages/kit/src/context.ts

@@ -0,0 +1,15 @@
+import { getContext } from 'unctx'
+import type { Nuxt } from '@nuxt/schema'
+
+/** Direct access to the Nuxt context - see https://github.com/unjs/unctx. */
+export const nuxtCtx = getContext<Nuxt>('nuxt')
+
+/**
+ * Get access to Nuxt (if run within the Nuxt context) - see https://github.com/unjs/unctx.
+ *
+ * @example
+ * ```js
+ * const nuxt = useNuxt()
+ * ```
+ */
+export const useNuxt = nuxtCtx.use

packages/kit/src/index.ts

@@ -1,28 +1,24 @@
-// Augmentations
-import './types/global'
-
-// Config
-export * from './config/load'
-export * from './config/env'
-
-// Nuxt
-export * from './nuxt'
-
 // Module
 export * from './module/container'
 export * from './module/define'
 export * from './module/install'
-export * from './module/utils'
+
+// Loader
+export * from './loader/config'
+export * from './loader/nuxt'
 
 // Utils
-export * from './utils/cjs'
-export * from './utils/resolve'
+export * from './build'
+export * from './compatibility'
+export * from './components'
+export * from './context'
+export * from './pages'
+export * from './plugin'
+export * from './resolve'
+export * from './server'
+export * from './template'
 
-// Types
-export * from './types/config'
-export * from './types/hooks'
-export * from './types/module'
-export * from './types/nuxt'
-export * from './types/components'
-export * from './types/imports'
-export * from './types/runtime-config'
+// Internal Utils
+// TODO
+export * from './internal/cjs'
+export * from './internal/template'

packages/kit/src/internal/cjs.ts

@@ -15,6 +15,7 @@ export interface RequireModuleOptions extends ResolveModuleOptions {
   // native?: boolean
   /** Clear the require cache (force fresh require) but only if not within `node_modules` */
   clearCache?: boolean
+
   /** Automatically de-default the result of requiring the module. */
   interopDefault?: boolean
 }

packages/kit/src/internal/dotenv.ts

@@ -1,16 +1,17 @@
 import { promises as fsp, existsSync } from 'fs'
 import { resolve } from 'pathe'
 import dotenv from 'dotenv'
-import { LoadNuxtConfigOptions } from './load'
 
-export interface LoadDotEnvOptions {
+export interface DotenvOptions {
   /** The project root directory (either absolute or relative to the current working directory). */
   rootDir: string
+
   /**
    * What file to look in for environment variables (either absolute or relative
    * to the current working directory). For example, `.env`.
    */
-  dotenvFile: string | false
+  fileName: string
+
   /**
    * Whether to interpolate variables within .env.
    *
@@ -22,44 +23,44 @@ export interface LoadDotEnvOptions {
    * ```
    */
   expand: boolean
+
   /** An object describing environment variables (key, value pairs). */
   env: NodeJS.ProcessEnv
 }
 
+export type Env = typeof process.env
+
 /**
  * Load and interpolate environment variables into `process.env`.
  * If you need more control (or access to the values), consider using `loadDotenv` instead
  *
- * @param rootDir - The project root directory (either absolute or relative to the current working directory).
  */
-export async function loadEnv (rootDir: string, options: LoadNuxtConfigOptions['envConfig'] = {}) {
+export async function setupDotenv (options: DotenvOptions): Promise<Env> {
   const targetEnv = options.env ?? process.env
 
   // Load env
   const env = await loadDotenv({
-    rootDir,
-    dotenvFile: options.dotenv ?? '.env',
+    rootDir: options.rootDir,
+    fileName: options.fileName ?? '.env',
     env: targetEnv,
     expand: options.expand ?? true
   })
 
-  // Fill process.env so it is accessible in nuxt.config
+  // Fill process.env
   for (const key in env) {
     if (!key.startsWith('_') && targetEnv[key] === undefined) {
       targetEnv[key] = env[key]
     }
   }
+
+  return env
 }
 
 /** Load environment variables into an object. */
-export async function loadDotenv (opts: LoadDotEnvOptions) {
-  if (!opts.dotenvFile) {
-    return
-  }
-
+export async function loadDotenv (opts: DotenvOptions): Promise<Env> {
   const env = Object.create(null)
 
-  const dotenvFile = resolve(opts.rootDir, opts.dotenvFile)
+  const dotenvFile = resolve(opts.rootDir, opts.fileName)
 
   if (existsSync(dotenvFile)) {
     const parsed = dotenv.parse(await fsp.readFile(dotenvFile, 'utf-8'))

packages/kit/src/internal/template.ts

@@ -0,0 +1,42 @@
+import { promises as fsp } from 'fs'
+import lodashTemplate from 'lodash.template'
+import hash from 'hash-sum'
+import { camelCase } from 'scule'
+import { basename, extname } from 'pathe'
+
+import type { NuxtTemplate } from '@nuxt/schema'
+
+export async function compileTemplate (template: NuxtTemplate, ctx: any) {
+  const data = { ...ctx, options: template.options }
+  if (template.src) {
+    try {
+      const srcContents = await fsp.readFile(template.src, 'utf-8')
+      return lodashTemplate(srcContents, {})(data)
+    } catch (err) {
+      console.error('Error compiling template: ', template)
+      throw err
+    }
+  }
+  if (template.getContents) {
+    return template.getContents(data)
+  }
+  throw new Error('Invalid template: ' + JSON.stringify(template))
+}
+
+const serialize = (data: any) => JSON.stringify(data, null, 2).replace(/"{(.+)}"/g, '$1')
+
+const importName = (src: string) => `${camelCase(basename(src, extname(src))).replace(/[^a-zA-Z?\d\s:]/g, '')}_${hash(src)}`
+
+const importSources = (sources: string | string[], { lazy = false } = {}) => {
+  if (!Array.isArray(sources)) {
+    sources = [sources]
+  }
+  return sources.map((src) => {
+    if (lazy) {
+      return `const ${importName(src)} = () => import('${src}' /* webpackChunkName: '${src}' */)`
+    }
+    return `import ${importName(src)} from '${src}'`
+  }).join('\n')
+}
+
+export const templateUtils = { serialize, importName, importSources }

packages/kit/src/loader/config.ts

@@ -3,29 +3,31 @@ import { resolve } from 'pathe'
 import defu from 'defu'
 import { applyDefaults } from 'untyped'
 import * as rc from 'rc9'
-import { tryResolveModule, requireModule, scanRequireTree } from '../utils/cjs'
-import { NuxtOptions } from '../types/config'
-import nuxtConfigSchema from './schema'
-import { loadEnv } from './env'
+import type { NuxtOptions } from '@nuxt/schema'
+import { NuxtConfigSchema } from '@nuxt/schema'
+import { tryResolveModule, requireModule, scanRequireTree } from '../internal/cjs'
+import { setupDotenv, DotenvOptions } from '../internal/dotenv'
 
 export interface LoadNuxtConfigOptions {
   /** Your project root directory (either absolute or relative to the current working directory). */
   rootDir?: string
+
   /** The path to your `nuxt.config` file (either absolute or relative to your project `rootDir`). */
   configFile?: string
+
   /** Any overrides to your Nuxt configuration. */
   config?: Record<string, any>
-  envConfig?: {
-    dotenv?: string | false
-    env?: Record<string, string | undefined>
-    expand?: boolean
-  }
+
+  /** Configuration for loading dotenv */
+  dotenv?: DotenvOptions | false
 }
 
 export async function loadNuxtConfig (opts: LoadNuxtConfigOptions): Promise<NuxtOptions> {
   const rootDir = resolve(process.cwd(), opts.rootDir || '.')
 
-  await loadEnv(rootDir, opts.envConfig)
+  if (opts.dotenv !== false) {
+    await setupDotenv({ rootDir, ...opts.dotenv })
+  }
 
   const nuxtConfigFile = tryResolveModule(resolve(rootDir, opts.configFile || 'nuxt.config'))
 
@@ -58,5 +60,5 @@ export async function loadNuxtConfig (opts: LoadNuxtConfigOptions): Promise<Nuxt
   }
 
   // Resolve and apply defaults
-  return applyDefaults(nuxtConfigSchema, nuxtConfig) as NuxtOptions
+  return applyDefaults(NuxtConfigSchema, nuxtConfig) as NuxtOptions
 }

packages/kit/src/loader/nuxt.ts

@@ -1,22 +1,7 @@
-import { getContext } from 'unctx'
 import { readPackageJSON, resolvePackageJSON } from 'pkg-types'
-import { importModule, tryImportModule, RequireModuleOptions } from './utils/cjs'
-import type { Nuxt } from './types/nuxt'
-import type { NuxtConfig } from './types/config'
-import type { LoadNuxtConfigOptions } from './config/load'
-
-/** Direct access to the Nuxt context - see https://github.com/unjs/unctx. */
-export const nuxtCtx = getContext<Nuxt>('nuxt')
-
-/**
- * Get access to Nuxt (if run within the Nuxt context) - see https://github.com/unjs/unctx.
- *
- * @example
- * ```js
- * const nuxt = useNuxt()
- * ```
- */
-export const useNuxt = nuxtCtx.use
+import type { Nuxt, NuxtConfig } from '@nuxt/schema'
+import { importModule, tryImportModule, RequireModuleOptions } from '../internal/cjs'
+import type { LoadNuxtConfigOptions } from './config'
 
 export interface LoadNuxtOptions extends LoadNuxtConfigOptions {
   rootDir: string
@@ -52,7 +37,7 @@ export async function loadNuxt (opts: LoadNuxtOptions): Promise<Nuxt> {
     for: opts.dev ? 'dev' : 'build',
     configOverrides: opts.config,
     ready: opts.ready,
-    envConfig: opts.envConfig
+    envConfig: opts.dotenv // TODO: Backward format convertion
   })
 
   return nuxt as Nuxt

packages/kit/src/module/container.ts

@@ -1,36 +1,27 @@
 import { parse, relative } from 'pathe'
 import consola from 'consola'
-import type { Nuxt, NuxtPluginTemplate, NuxtTemplate } from '../types/nuxt'
-import { chainFn } from '../utils/task'
-import { isNuxt2, addTemplate, addPluginTemplate, addServerMiddleware } from './utils'
+import type { Nuxt, NuxtPluginTemplate, NuxtTemplate, ModuleContainer } from '@nuxt/schema'
+import { chainFn } from '../internal/task'
+import { addTemplate } from '../template'
+import { addServerMiddleware } from '../server'
+import { isNuxt2 } from '../compatibility'
+import { addPluginTemplate } from '../plugin'
+
 import { installModule } from './install'
 
-/** Legacy ModuleContainer for backwards compatibility with existing Nuxt 2 modules. */
-export function createModuleContainer (nuxt: Nuxt) {
-  return {
+export function createModuleContainer (nuxt: Nuxt): ModuleContainer {
+  return <ModuleContainer>{
     nuxt,
     options: nuxt.options,
 
-    /**
-     * Returns a resolved promise immediately.
-     *
-     * @deprecated
-     */
-    ready () {
-      return Promise.resolve()
-    },
+    ready () { return Promise.resolve() },
+    addVendor () {},
 
-    /** @deprecated */
-    addVendor () {
-      console.warn('addVendor has been deprecated and has no effect.')
-    },
+    requireModule: installModule,
+    addModule: installModule,
+
+    addServerMiddleware,
 
-    /**
-     * Renders given template using lodash template during build into the project buildDir (`.nuxt`).
-     *
-     * If a fileName is not provided or the template is string, target file name defaults to
-     * [dirName].[fileName].[pathHash].[ext].
-     */
     addTemplate (template: string | NuxtTemplate) {
       if (typeof template === 'string') {
         template = { src: template }
@@ -41,29 +32,10 @@ export function createModuleContainer (nuxt: Nuxt) {
       return addTemplate(template)
     },
 
-    /**
-     * Registers a plugin template and prepends it to the plugins[] array.
-     *
-     * Note: You can use mode or .client and .server modifiers with fileName option
-     * to use plugin only in client or server side.
-     *
-     * If you choose to specify a fileName, you can configure a custom path for the
-     * fileName too, so you can choose the folder structure inside .nuxt folder in
-     * order to prevent name collisioning:
-     *
-     * @example
-     * ```js
-     * this.addPlugin({
-     *   src: path.resolve(__dirname, 'templates/foo.js'),
-     *   fileName: 'foo.server.js' // [optional] only include in server bundle
-     * })
-     * ```
-     */
     addPlugin (pluginTemplate: NuxtPluginTemplate): NuxtPluginTemplate {
       return addPluginTemplate(pluginTemplate)
     },
 
-    /** Register a custom layout. If its name is 'error' it will override the default error layout. */
     addLayout (tmpl: NuxtTemplate, name: string) {
       const { filename, src } = addTemplate(tmpl)
       const layoutName = name || parse(src).name
@@ -72,36 +44,22 @@ export function createModuleContainer (nuxt: Nuxt) {
       if (layout) {
         consola.warn(`Duplicate layout registration, "${layoutName}" has been registered as "${layout}"`)
       }
-
-      // Add to nuxt layouts
       nuxt.options.layouts[layoutName] = `./${filename}`
-
-      // If error layout, set ErrorPage
       if (name === 'error') {
         this.addErrorLayout(filename)
       }
     },
 
-    /**
-     * Set the layout that will render Nuxt errors. It should already have been added via addLayout or addTemplate.
-     *
-     * @param dst - Path to layout file within the buildDir (`.nuxt/<dst>.vue`)
-     */
     addErrorLayout (dst: string) {
       const relativeBuildDir = relative(nuxt.options.rootDir, nuxt.options.buildDir)
       nuxt.options.ErrorPage = `~/${relativeBuildDir}/${dst}`
     },
 
-    /** Adds a new server middleware to the end of the server middleware array. */
-    addServerMiddleware,
-
-    /** Allows extending webpack build config by chaining `options.build.extend` function. */
     extendBuild (fn) {
       // @ts-ignore
       nuxt.options.build.extend = chainFn(nuxt.options.build.extend, fn)
     },
 
-    /** Allows extending routes by chaining `options.build.extendRoutes` function. */
     extendRoutes (fn) {
       if (isNuxt2(nuxt)) {
         nuxt.options.router.extendRoutes = chainFn(nuxt.options.router.extendRoutes, fn)
@@ -113,14 +71,6 @@ export function createModuleContainer (nuxt: Nuxt) {
           }
         })
       }
-    },
-
-    /** `requireModule` is a shortcut for `addModule` */
-    requireModule: installModule,
-
-    /** Registers a module. moduleOpts can be a string or an array ([src, options]). */
-    addModule: installModule
     }
   }
-
-export type ModuleContainer = ReturnType<typeof createModuleContainer>
+}

packages/kit/src/module/define.ts

@@ -3,10 +3,10 @@ import defu from 'defu'
 import { applyDefaults } from 'untyped'
 import consola from 'consola'
 import { dirname } from 'pathe'
-import { useNuxt, nuxtCtx } from '../nuxt'
-import type { Nuxt, NuxtTemplate } from '../types/nuxt'
-import type { NuxtModule, LegacyNuxtModule, ModuleOptions } from '../types/module'
-import { checkNuxtCompatibilityIssues, compileTemplate, isNuxt2, templateUtils } from './utils'
+import type { Nuxt, NuxtTemplate, NuxtModule, LegacyNuxtModule, ModuleOptions } from '@nuxt/schema'
+import { useNuxt, nuxtCtx } from '../context'
+import { isNuxt2, checkNuxtCompatibilityIssues } from '../compatibility'
+import { templateUtils, compileTemplate } from '../internal/template'
 
 /**
  * Define a Nuxt module, automatically merging defaults with user provided options, installing

packages/kit/src/module/install.ts

@@ -1,7 +1,6 @@
-import { resolveModule, requireModule, importModule } from '../utils/cjs'
-import { resolveAlias } from '../utils/resolve'
-import type { LegacyNuxtModule, NuxtModule, ModuleMeta, ModuleInstallOptions, ModuleOptions, ModuleSrc } from '../types/module'
-import type { Nuxt } from '../types/nuxt'
+import type { LegacyNuxtModule, NuxtModule, ModuleMeta, ModuleInstallOptions, ModuleOptions, ModuleSrc, Nuxt } from '@nuxt/schema'
+import { resolveModule, requireModule, importModule } from '../internal/cjs'
+import { resolveAlias } from '../resolve'
 import { defineNuxtModule } from './define'
 import { createModuleContainer } from './container'
 

packages/kit/src/module/utils.ts

@@ -1,446 +0,0 @@
-import { existsSync, promises as fsp } from 'fs'
-import { basename, extname, normalize, parse, resolve } from 'pathe'
-import lodashTemplate from 'lodash.template'
-import hash from 'hash-sum'
-import { pascalCase, camelCase, kebabCase } from 'scule'
-import type { WebpackPluginInstance, Configuration as WebpackConfig } from 'webpack'
-import type { Plugin as VitePlugin, UserConfig as ViteConfig } from 'vite'
-import satisfies from 'semver/functions/satisfies.js' // npm/node-semver#381
-import { NuxtCompatibilityConstraints, NuxtCompatibilityIssues } from '../types/module'
-import { Nuxt } from '../types/nuxt'
-import { useNuxt } from '../nuxt'
-import type { NuxtTemplate, NuxtPlugin, NuxtPluginTemplate } from '../types/nuxt'
-import type { ComponentsDir, Component } from '../types/components'
-import type { NuxtHooks } from '../types/hooks'
-
-/**
- * Renders given template using lodash template during build into the project buildDir
- */
-export function addTemplate (_template: NuxtTemplate | string) {
-  const nuxt = useNuxt()
-
-  // Noprmalize template
-  const template = normalizeTemplate(_template)
-
-  // Remove any existing template with the same filename
-  nuxt.options.build.templates = nuxt.options.build.templates
-    .filter(p => normalizeTemplate(p).filename !== template.filename)
-
-  // Add to templates array
-  nuxt.options.build.templates.push(template)
-
-  return template
-}
-
-/**
- * Normalize a nuxt template object
- */
-export function normalizeTemplate (template: NuxtTemplate | string): NuxtTemplate {
-  if (!template) {
-    throw new Error('Invalid template: ' + JSON.stringify(template))
-  }
-
-  // Normalize
-  if (typeof template === 'string') {
-    template = { src: template }
-  } else {
-    template = { ...template }
-  }
-
-  // Use src if provided
-  if (template.src) {
-    if (!existsSync(template.src)) {
-      throw new Error('Template not found: ' + template.src)
-    }
-    if (!template.filename) {
-      const srcPath = parse(template.src)
-      template.filename = template.fileName ||
-        `${basename(srcPath.dir)}.${srcPath.name}.${hash(template.src)}${srcPath.ext}`
-    }
-  }
-
-  if (!template.src && !template.getContents) {
-    throw new Error('Invalid template. Either getContents or src options should be provided: ' + JSON.stringify(template))
-  }
-
-  if (!template.filename) {
-    throw new Error('Invalid template. Either filename should be provided: ' + JSON.stringify(template))
-  }
-
-  // Resolve dst
-  if (!template.dst) {
-    const nuxt = useNuxt()
-    template.dst = resolve(nuxt.options.buildDir, template.filename)
-  }
-
-  return template
-}
-
-/**
- * Normalize a nuxt plugin object
- */
-export function normalizePlugin (plugin: NuxtPlugin | string): NuxtPlugin {
-  // Normalize src
-  if (typeof plugin === 'string') {
-    plugin = { src: plugin }
-  } else {
-    plugin = { ...plugin }
-  }
-
-  if (!plugin.src) {
-    throw new Error('Invalid plugin. src option is required: ' + JSON.stringify(plugin))
-  }
-
-  // Normalize full path to plugin
-  plugin.src = normalize(plugin.src)
-
-  // Normalize mode
-  if (plugin.ssr) {
-    plugin.mode = 'server'
-  }
-  if (!plugin.mode) {
-    const [, mode = 'all'] = plugin.src.match(/\.(server|client)(\.\w+)*$/) || []
-    plugin.mode = mode as 'all' | 'client' | 'server'
-  }
-
-  return plugin
-}
-
-/**
- * Registers a nuxt plugin and to the plugins array.
- *
- * Note: You can use mode or .client and .server modifiers with fileName option
- * to use plugin only in client or server side.
- *
- * Note: By default plugin is prepended to the plugins array. You can use second argument to append (push) instead.
- *
- * @example
- * ```js
- * addPlugin({
- *   src: path.resolve(__dirname, 'templates/foo.js'),
- *   filename: 'foo.server.js' // [optional] only include in server bundle
- * })
- * ```
- */
-export interface AddPluginOptions { append?: Boolean }
-export function addPlugin (_plugin: NuxtPlugin | string, opts: AddPluginOptions = {}) {
-  const nuxt = useNuxt()
-
-  // Normalize plugin
-  const plugin = normalizePlugin(_plugin)
-
-  // Remove any existing plugin with the same src
-  nuxt.options.plugins = nuxt.options.plugins.filter(p => normalizePlugin(p).src !== plugin.src)
-
-  // Prepend to array by default to be before user provided plugins since is usually used by modules
-  nuxt.options.plugins[opts.append ? 'push' : 'unshift'](plugin)
-
-  return plugin
-}
-
-/**
- * Adds a template and registers as a nuxt plugin.
- */
-export function addPluginTemplate (plugin: NuxtPluginTemplate | string, opts: AddPluginOptions = {}): NuxtPluginTemplate {
-  if (typeof plugin === 'string') {
-    plugin = { src: plugin }
-  }
-
-  // Update plugin src to template destination
-  plugin.src = addTemplate(plugin).dst
-
-  return addPlugin(plugin, opts)
-}
-
-/** Adds a new server middleware to the end of the server middleware array. */
-export function addServerMiddleware (middleware) {
-  useNuxt().options.serverMiddleware.push(middleware)
-}
-
-export interface ExtendConfigOptions {
-  /**
-   * Install plugin on dev
-   *
-   * @default true
-   */
-   dev?: boolean
-   /**
-    * Install plugin on build
-    *
-    * @default true
-    */
-   build?: boolean
-}
-
-export interface ExtendWebpackConfigOptions extends ExtendConfigOptions {
-  /**
-   * Install plugin on server side
-   *
-   * @default true
-   */
-  server?: boolean
-  /**
-   * Install plugin on client side
-   *
-   * @default true
-   */
-  client?: boolean
-  /**
-   * Install plugin on modern build
-   *
-   * @default true
-   * @deprecated Nuxt 2 only
-   */
-  modern?: boolean
-}
-
-export interface ExtendViteConfigOptions extends ExtendConfigOptions {}
-
-/**
- * Extend Webpack config
- *
- * The fallback function might be called multiple times
- * when applying to both client and server builds.
- */
-export function extendWebpackConfig (
-  fn: ((config: WebpackConfig)=> void),
-  options: ExtendWebpackConfigOptions = {}
-) {
-  const nuxt = useNuxt()
-
-  if (options.dev === false && nuxt.options.dev) {
-    return
-  }
-  if (options.build === false && nuxt.options.build) {
-    return
-  }
-
-  nuxt.hook('webpack:config', (configs: WebpackConfig[]) => {
-    if (options.server !== false) {
-      const config = configs.find(i => i.name === 'server')
-      if (config) {
-        fn(config)
-      }
-    }
-    if (options.client !== false) {
-      const config = configs.find(i => i.name === 'client')
-      if (config) {
-        fn(config)
-      }
-    }
-    // Nuxt 2 backwards compatibility
-    if (options.modern !== false) {
-      const config = configs.find(i => i.name === 'modern')
-      if (config) {
-        fn(config)
-      }
-    }
-  })
-}
-
-/**
- * Extend Vite config
- */
-export function extendViteConfig (
-  fn: ((config: ViteConfig) => void),
-  options: ExtendViteConfigOptions = {}
-) {
-  const nuxt = useNuxt()
-
-  if (options.dev === false && nuxt.options.dev) {
-    return
-  }
-  if (options.build === false && nuxt.options.build) {
-    return
-  }
-
-  nuxt.hook('vite:extend', ({ config }) => fn(config))
-}
-
-/**
- * Append Webpack plugin to the config.
- */
-export function addWebpackPlugin (plugin: WebpackPluginInstance, options?: ExtendWebpackConfigOptions) {
-  extendWebpackConfig((config) => {
-    config.plugins = config.plugins || []
-    config.plugins.push(plugin)
-  }, options)
-}
-
-/**
- * Append Vite plugin to the config.
- */
-export function addVitePlugin (plugin: VitePlugin, options?: ExtendViteConfigOptions) {
-  extendViteConfig((config) => {
-    config.plugins = config.plugins || []
-    config.plugins.push(plugin)
-  }, options)
-}
-
-export async function compileTemplate (template: NuxtTemplate, ctx: any) {
-  const data = { ...ctx, options: template.options }
-  if (template.src) {
-    try {
-      const srcContents = await fsp.readFile(template.src, 'utf-8')
-      return lodashTemplate(srcContents, {})(data)
-    } catch (err) {
-      console.error('Error compiling template: ', template)
-      throw err
-    }
-  }
-  if (template.getContents) {
-    return template.getContents(data)
-  }
-  throw new Error('Invalid template: ' + JSON.stringify(template))
-}
-
-/**
- * Register a directory to be scanned for components and imported only when used.
- *
- * Requires Nuxt 2.13+
- */
-export function addComponentsDir (dir: ComponentsDir) {
-  const nuxt = useNuxt()
-  ensureNuxtCompatibility({ nuxt: '>=2.13' }, nuxt)
-  nuxt.options.components = nuxt.options.components || []
-  nuxt.hook('components:dirs', (dirs) => { dirs.push(dir) })
-}
-
-export type AddComponentOptions = { name: string, filePath: string } & Partial<Exclude<Component,
-'shortPath' | 'async' | 'level' | 'import' | 'asyncImport'
->>
-
-/**
- * Register a directory to be scanned for components and imported only when used.
- *
- * Requires Nuxt 2.13+
- */
-export function addComponent (opts: AddComponentOptions) {
-  const nuxt = useNuxt()
-  ensureNuxtCompatibility({ nuxt: '>=2.13' }, nuxt)
-  nuxt.options.components = nuxt.options.components || []
-
-  // Apply defaults
-  const component: Component = {
-    export: opts.export || 'default',
-    chunkName: 'components/' + kebabCase(opts.name),
-    global: opts.global ?? false,
-    kebabName: kebabCase(opts.name || ''),
-    pascalName: pascalCase(opts.name || ''),
-    prefetch: false,
-    preload: false,
-
-    // Nuxt 2 support
-    shortPath: opts.filePath,
-    async: false,
-    level: 0,
-    asyncImport: `() => import('${opts.filePath}').then(r => r['${opts.export || 'default'}'])`,
-    import: `require('${opts.filePath}')['${opts.export || 'default'}']`,
-
-    ...opts
-  }
-
-  nuxt.hook('components:extend', (components: Component[]) => {
-    const existingComponent = components.find(c => c.pascalName === component.pascalName || c.kebabName === component.kebabName)
-    if (existingComponent) {
-      const name = existingComponent.pascalName || existingComponent.kebabName
-      console.warn(`Overriding ${name} component.`)
-      Object.assign(existingComponent, component)
-    } else {
-      components.push(component)
-    }
-  })
-}
-
-export function extendPages (cb: NuxtHooks['pages:extend']) {
-  const nuxt = useNuxt()
-  if (isNuxt2(nuxt)) {
-    nuxt.hook('build:extendRoutes', cb)
-  } else {
-    nuxt.hook('pages:extend', cb)
-  }
-}
-
-const serialize = (data: any) => JSON.stringify(data, null, 2).replace(/"{(.+)}"/g, '$1')
-
-const importName = (src: string) => `${camelCase(basename(src, extname(src))).replace(/[^a-zA-Z?\d\s:]/g, '')}_${hash(src)}`
-
-const importSources = (sources: string | string[], { lazy = false } = {}) => {
-  if (!Array.isArray(sources)) {
-    sources = [sources]
-  }
-  return sources.map((src) => {
-    if (lazy) {
-      return `const ${importName(src)} = () => import('${src}' /* webpackChunkName: '${src}' */)`
-    }
-    return `import ${importName(src)} from '${src}'`
-  }).join('\n')
-}
-
-export const templateUtils = {
-  serialize,
-  importName,
-  importSources
-}
-
-/**
- * Check if current nuxt instance is version 2 legacy
- */
-export function isNuxt2 (nuxt: Nuxt = useNuxt()) {
-  return getNuxtVersion(nuxt).startsWith('2.')
-}
-
-/**
- * Check if current nuxt instance is version 3
- */
-export function isNuxt3 (nuxt: Nuxt = useNuxt()) {
-  return getNuxtVersion(nuxt).startsWith('3.')
-}
-
-/**
- * Get nuxt version
- */
-export function getNuxtVersion (nuxt: Nuxt | any = useNuxt() /* TODO: LegacyNuxt */) {
-  const version = (nuxt?._version || nuxt?.version || nuxt?.constructor?.version || '').replace(/^v/g, '')
-  if (!version) {
-    throw new Error('Cannot determine nuxt version! Is currect instance passed?')
-  }
-  return version
-}
-
-/**
- * Check version constraints and return incompatibility issues as an array
- */
-export function checkNuxtCompatibilityIssues (constraints: NuxtCompatibilityConstraints, nuxt: Nuxt = useNuxt()): NuxtCompatibilityIssues {
-  const issues: NuxtCompatibilityIssues = []
-  if (constraints.nuxt) {
-    const nuxtVersion = getNuxtVersion(nuxt)
-    const nuxtSemanticVersion = nuxtVersion.split('-').shift()
-    if (!satisfies(nuxtSemanticVersion, constraints.nuxt)) {
-      issues.push({
-        name: 'nuxt',
-        message: `Nuxt version \`${constraints.nuxt}\` is required but currently using \`${nuxtVersion}\``
-      })
-    }
-  }
-  issues.toString = () => issues.map(issue => ` - [${issue.name}] ${issue.message}`).join('\n')
-  return issues
-}
-
-/**
- * Check version constraints and throw a detailed error if has any, otherwise returns true
- */
-export function ensureNuxtCompatibility (constraints: NuxtCompatibilityConstraints, nuxt: Nuxt = useNuxt()): true {
-  const issues = checkNuxtCompatibilityIssues(constraints, nuxt)
-  if (issues.length) {
-    throw new Error('Nuxt compatibility issues found:\n' + issues.toString())
-  }
-  return true
-}
-
-/**
- * Check version constraints and return true if passed, otherwise returns false
- */
-export function hasNuxtCompatibility (constraints: NuxtCompatibilityConstraints, nuxt: Nuxt = useNuxt()) {
-  return !checkNuxtCompatibilityIssues(constraints, nuxt).length
-}

packages/kit/src/pages.ts

@@ -0,0 +1,12 @@
+import type { NuxtHooks } from '@nuxt/schema'
+import { useNuxt } from './context'
+import { isNuxt2 } from './compatibility'
+
+export function extendPages (cb: NuxtHooks['pages:extend']) {
+  const nuxt = useNuxt()
+  if (isNuxt2(nuxt)) {
+    nuxt.hook('build:extendRoutes', cb)
+  } else {
+    nuxt.hook('pages:extend', cb)
+  }
+}

packages/kit/src/plugin.ts

@@ -0,0 +1,80 @@
+import { normalize } from 'pathe'
+import type { NuxtPlugin, NuxtPluginTemplate } from '@nuxt/schema'
+import { useNuxt } from './context'
+import { addTemplate } from './template'
+
+/**
+ * Normalize a nuxt plugin object
+ */
+export function normalizePlugin (plugin: NuxtPlugin | string): NuxtPlugin {
+  // Normalize src
+  if (typeof plugin === 'string') {
+    plugin = { src: plugin }
+  } else {
+    plugin = { ...plugin }
+  }
+
+  if (!plugin.src) {
+    throw new Error('Invalid plugin. src option is required: ' + JSON.stringify(plugin))
+  }
+
+  // Normalize full path to plugin
+  plugin.src = normalize(plugin.src)
+
+  // Normalize mode
+  if (plugin.ssr) {
+    plugin.mode = 'server'
+  }
+  if (!plugin.mode) {
+    const [, mode = 'all'] = plugin.src.match(/\.(server|client)(\.\w+)*$/) || []
+    plugin.mode = mode as 'all' | 'client' | 'server'
+  }
+
+  return plugin
+}
+
+/**
+ * Registers a nuxt plugin and to the plugins array.
+ *
+ * Note: You can use mode or .client and .server modifiers with fileName option
+ * to use plugin only in client or server side.
+ *
+ * Note: By default plugin is prepended to the plugins array. You can use second argument to append (push) instead.
+ *
+ * @example
+ * ```js
+ * addPlugin({
+ *   src: path.resolve(__dirname, 'templates/foo.js'),
+ *   filename: 'foo.server.js' // [optional] only include in server bundle
+ * })
+ * ```
+ */
+export interface AddPluginOptions { append?: Boolean }
+export function addPlugin (_plugin: NuxtPlugin | string, opts: AddPluginOptions = {}) {
+  const nuxt = useNuxt()
+
+  // Normalize plugin
+  const plugin = normalizePlugin(_plugin)
+
+  // Remove any existing plugin with the same src
+  nuxt.options.plugins = nuxt.options.plugins.filter(p => normalizePlugin(p).src !== plugin.src)
+
+  // Prepend to array by default to be before user provided plugins since is usually used by modules
+  nuxt.options.plugins[opts.append ? 'push' : 'unshift'](plugin)
+
+  return plugin
+}
+
+/**
+ * Adds a template and registers as a nuxt plugin.
+ */
+export function addPluginTemplate (plugin: NuxtPluginTemplate | string, opts: AddPluginOptions = {}): NuxtPluginTemplate {
+  if (typeof plugin === 'string') {
+    plugin = { src: plugin }
+  }
+
+  // Update plugin src to template destination
+  plugin.src = addTemplate(plugin).dst
+
+  return addPlugin(plugin, opts)
+}

packages/kit/src/server.ts

@@ -0,0 +1,6 @@
+import { useNuxt } from './context'
+
+/** Adds a new server middleware to the end of the server middleware array. */
+export function addServerMiddleware (middleware) {
+  useNuxt().options.serverMiddleware.push(middleware)
+}

packages/kit/src/template.ts

@@ -0,0 +1,68 @@
+import { existsSync } from 'fs'
+import { basename, parse, resolve } from 'pathe'
+import hash from 'hash-sum'
+import type { NuxtTemplate } from '@nuxt/schema'
+import { useNuxt } from './context'
+
+/**
+ * Renders given template using lodash template during build into the project buildDir
+ */
+export function addTemplate (_template: NuxtTemplate | string) {
+  const nuxt = useNuxt()
+
+  // Noprmalize template
+  const template = normalizeTemplate(_template)
+
+  // Remove any existing template with the same filename
+  nuxt.options.build.templates = nuxt.options.build.templates
+    .filter(p => normalizeTemplate(p).filename !== template.filename)
+
+  // Add to templates array
+  nuxt.options.build.templates.push(template)
+
+  return template
+}
+
+/**
+ * Normalize a nuxt template object
+ */
+export function normalizeTemplate (template: NuxtTemplate | string): NuxtTemplate {
+  if (!template) {
+    throw new Error('Invalid template: ' + JSON.stringify(template))
+  }
+
+  // Normalize
+  if (typeof template === 'string') {
+    template = { src: template }
+  } else {
+    template = { ...template }
+  }
+
+  // Use src if provided
+  if (template.src) {
+    if (!existsSync(template.src)) {
+      throw new Error('Template not found: ' + template.src)
+    }
+    if (!template.filename) {
+      const srcPath = parse(template.src)
+      template.filename = template.fileName ||
+        `${basename(srcPath.dir)}.${srcPath.name}.${hash(template.src)}${srcPath.ext}`
+    }
+  }
+
+  if (!template.src && !template.getContents) {
+    throw new Error('Invalid template. Either getContents or src options should be provided: ' + JSON.stringify(template))
+  }
+
+  if (!template.filename) {
+    throw new Error('Invalid template. Either filename should be provided: ' + JSON.stringify(template))
+  }
+
+  // Resolve dst
+  if (!template.dst) {
+    const nuxt = useNuxt()
+    template.dst = resolve(nuxt.options.buildDir, template.filename)
+  }
+
+  return template
+}

packages/kit/src/types/runtime-config.ts

@@ -1,5 +0,0 @@
-export interface PublicRuntimeConfig extends Record<string, any> { }
-export interface PrivateRuntimeConfig extends PublicRuntimeConfig { }
-
-type _RuntimeConfig = PublicRuntimeConfig & Partial<PrivateRuntimeConfig>
-export interface RuntimeConfig extends _RuntimeConfig { }

packages/nitro/build.config.ts

@@ -18,5 +18,8 @@ export default defineBuildConfig({
     'ora',
     'vue-bundle-renderer',
     'vue-server-renderer'
+  ],
+  externals: [
+    '@nuxt/schema'
   ]
 })

packages/nitro/package.json

@@ -72,6 +72,7 @@
     "vue-server-renderer": "^2.6.14"
   },
   "devDependencies": {
+    "@nuxt/schema": "3.0.0",
     "@types/fs-extra": "^9.0.13",
     "@types/http-proxy": "^1.17.7",
     "@types/node-fetch": "^3.0.2",

packages/nitro/src/context.ts

@@ -3,7 +3,7 @@ import { resolve } from 'pathe'
 import defu from 'defu'
 import { createHooks, Hookable, NestedHooks } from 'hookable'
 import type { Preset } from 'unenv'
-import type { NuxtHooks, NuxtOptions } from '@nuxt/kit'
+import type { NuxtHooks, NuxtOptions } from '@nuxt/schema'
 import type { PluginVisualizerOptions } from 'rollup-plugin-visualizer'
 import { tryImport, resolvePath, detectTarget, extendPreset } from './utils'
 import * as PRESETS from './presets'

packages/nitro/src/server/middleware.ts

@@ -2,7 +2,8 @@ import { resolve, join, extname } from 'pathe'
 import { joinURL } from 'ufo'
 import globby from 'globby'
 import { watch } from 'chokidar'
-import { tryResolvePath, Nuxt } from '@nuxt/kit'
+import { tryResolvePath } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 import type { Middleware } from 'h3'
 
 export interface ServerMiddleware {

packages/nitro/types/shims.d.ts

@@ -11,7 +11,7 @@ declare module '#assets' {
 }
 
 declare module '#config' {
-  import type { PublicRuntimeConfig, PrivateRuntimeConfig } from '@nuxt/kit'
+  import type { PublicRuntimeConfig, PrivateRuntimeConfig } from '@nuxt/schema'
   export const privateConfig: PrivateRuntimeConfig
   export const publicConfig: PublicRuntimeConfig
   const runtimeConfig: PrivateRuntimeConfig & PublicRuntimeConfig

packages/nuxi/build.config.ts

@@ -10,6 +10,14 @@ export default defineBuildConfig({
   ],
   externals: [
     '@nuxt/kit',
-    'fsevents'
+    '@nuxt/schema',
+    'fsevents',
+    // TODO: Fix rollup/unbuild issue
+    'node:buffer',
+    'node:path',
+    'node:child_process',
+    'node:process',
+    'node:path',
+    'node:os'
   ]
 })

packages/nuxi/package.json

@@ -19,6 +19,7 @@
   "devDependencies": {
     "@nuxt/design": "0.1.5",
     "@nuxt/kit": "3.0.0",
+    "@nuxt/schema": "3.0.0",
     "@types/clear": "^0",
     "@types/mri": "^1.1.1",
     "@types/rimraf": "^3",

packages/nuxi/src/commands/dev.ts

@@ -1,7 +1,7 @@
 import { resolve, relative } from 'pathe'
 import chokidar from 'chokidar'
 import debounce from 'p-debounce'
-import type { Nuxt } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 import consola from 'consola'
 import { createServer, createLoadingHandler } from '../utils/server'
 import { showBanner } from '../utils/banner'

packages/nuxi/src/utils/prepare.ts

@@ -1,6 +1,6 @@
 import { promises as fsp } from 'fs'
 import { join, relative, resolve } from 'pathe'
-import { Nuxt, TSReference } from '@nuxt/kit'
+import { Nuxt, TSReference } from '@nuxt/schema'
 import defu from 'defu'
 import type { TSConfig } from 'pkg-types'
 import { getModulePaths, getNearestPackage } from './cjs'

packages/nuxt3/package.json

@@ -22,6 +22,7 @@
     "@nuxt/design": "^0.1.5",
     "@nuxt/kit": "3.0.0",
     "@nuxt/nitro": "3.0.0",
+    "@nuxt/schema": "3.0.0",
     "@nuxt/vite-builder": "3.0.0",
     "@nuxt/webpack-builder": "3.0.0",
     "@vue/reactivity": "^3.2.22",

packages/nuxt3/src/app/nuxt.ts

@@ -2,7 +2,7 @@
 import { getCurrentInstance, reactive } from 'vue'
 import type { App, VNode } from 'vue'
 import { createHooks, Hookable } from 'hookable'
-import type { RuntimeConfig } from '@nuxt/kit'
+import type { RuntimeConfig } from '@nuxt/schema'
 import { legacyPlugin, LegacyContext } from './compat/legacy-app'
 
 type NuxtMeta = {

packages/nuxt3/src/auto-imports/composables.ts

@@ -3,7 +3,7 @@ import { parse as parsePath, join } from 'pathe'
 import globby from 'globby'
 import { findExports } from 'mlly'
 import { camelCase } from 'scule'
-import { AutoImport } from '@nuxt/kit'
+import { AutoImport } from '@nuxt/schema'
 import { filterInPlace } from './utils'
 
 export async function scanForComposables (dir: string, autoImports: AutoImport[]) {

packages/nuxt3/src/auto-imports/context.ts

@@ -1,4 +1,4 @@
-import type { AutoImport } from '@nuxt/kit'
+import type { AutoImport } from '@nuxt/schema'
 
 export interface AutoImportContext {
   autoImports: AutoImport[]

packages/nuxt3/src/auto-imports/imports.ts

@@ -1,4 +1,4 @@
-import type { AutoImportSource } from '@nuxt/kit'
+import type { AutoImportSource } from '@nuxt/schema'
 
 export const Nuxt3AutoImports: AutoImportSource[] = [
   // #app

packages/nuxt3/src/auto-imports/module.ts

@@ -1,5 +1,5 @@
 import { addVitePlugin, addWebpackPlugin, defineNuxtModule, addTemplate, resolveAlias, addPluginTemplate, useNuxt } from '@nuxt/kit'
-import type { AutoImportsOptions } from '@nuxt/kit'
+import type { AutoImportsOptions } from '@nuxt/schema'
 import { isAbsolute, join, relative, resolve, normalize } from 'pathe'
 import { TransformPlugin } from './transform'
 import { Nuxt3AutoImports } from './imports'

packages/nuxt3/src/auto-imports/utils.ts

@@ -1,4 +1,4 @@
-import type { AutoImport } from '@nuxt/kit'
+import type { AutoImport } from '@nuxt/schema'
 
 export function toImports (autoImports: AutoImport[], isCJS = false) {
   const aliasKeyword = isCJS ? ' : ' : ' as '

packages/nuxt3/src/components/loader.ts

@@ -1,6 +1,6 @@
 import { createUnplugin } from 'unplugin'
 import { parseQuery, parseURL } from 'ufo'
-import { Component } from '@nuxt/kit'
+import { Component } from '@nuxt/schema'
 
 interface LoaderOptions {
   getComponents(): Component[]

packages/nuxt3/src/components/module.ts

@@ -1,7 +1,7 @@
 import { statSync } from 'fs'
 import { resolve } from 'pathe'
 import { defineNuxtModule, resolveAlias, addVitePlugin, addWebpackPlugin } from '@nuxt/kit'
-import type { Component, ComponentsDir, ComponentsOptions } from '@nuxt/kit'
+import type { Component, ComponentsDir, ComponentsOptions } from '@nuxt/schema'
 import { componentsTemplate, componentsTypeTemplate } from './templates'
 import { scanComponents } from './scan'
 import { loaderPlugin } from './loader'

packages/nuxt3/src/components/scan.ts

@@ -1,7 +1,7 @@
 import { basename, extname, join, dirname, relative } from 'pathe'
 import globby from 'globby'
 import { pascalCase, splitByCase } from 'scule'
-import type { ScanDir, Component, ComponentsDir } from '@nuxt/kit'
+import type { ScanDir, Component, ComponentsDir } from '@nuxt/schema'
 
 export function sortDirsByPathLength ({ path: pathA }: ScanDir, { path: pathB }: ScanDir): number {
   return pathB.split(/[\\/]/).filter(Boolean).length - pathA.split(/[\\/]/).filter(Boolean).length

packages/nuxt3/src/components/templates.ts

@@ -1,6 +1,6 @@
 
 import { relative } from 'pathe'
-import type { Component } from '@nuxt/kit'
+import type { Component } from '@nuxt/schema'
 
 export type ComponentsTemplateOptions = {
   buildDir?: string

packages/nuxt3/src/core/app.ts

@@ -1,7 +1,8 @@
 import { promises as fsp } from 'fs'
 import { resolve } from 'pathe'
 import defu from 'defu'
-import { tryResolvePath, resolveFiles, Nuxt, NuxtApp, normalizePlugin, normalizeTemplate, compileTemplate, templateUtils } from '@nuxt/kit'
+import type { Nuxt, NuxtApp } from '@nuxt/schema'
+import { tryResolvePath, resolveFiles, normalizePlugin, normalizeTemplate, compileTemplate, templateUtils } from '@nuxt/kit'
 
 import * as defaultTemplates from './templates'
 

packages/nuxt3/src/core/builder.ts

@@ -1,5 +1,5 @@
 import chokidar from 'chokidar'
-import { Nuxt } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 import { createApp, generateApp } from './app'
 
 export async function build (nuxt: Nuxt) {

packages/nuxt3/src/core/nitro.ts

@@ -1,6 +1,6 @@
 import { resolve } from 'pathe'
 import { wpfs, getNitroContext, createDevServer, resolveMiddleware, build, prepare, generate } from '@nuxt/nitro'
-import type { Nuxt } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 
 export function initNitro (nuxt: Nuxt) {
   // Create contexts

packages/nuxt3/src/core/nuxt.ts

@@ -1,6 +1,7 @@
 import { resolve } from 'pathe'
 import { createHooks } from 'hookable'
-import { loadNuxtConfig, LoadNuxtOptions, Nuxt, NuxtOptions, NuxtConfig, nuxtCtx, installModule, ModuleContainer, NuxtHooks, addComponent } from '@nuxt/kit'
+import type { Nuxt, NuxtOptions, NuxtConfig, ModuleContainer, NuxtHooks } from '@nuxt/schema'
+import { loadNuxtConfig, LoadNuxtOptions, nuxtCtx, installModule, addComponent } from '@nuxt/kit'
 import pagesModule from '../pages/module'
 import metaModule from '../meta/module'
 import componentsModule from '../components/module'

packages/nuxt3/src/core/templates.ts

@@ -1,5 +1,5 @@
 import { templateUtils } from '@nuxt/kit'
-import type { Nuxt, NuxtApp } from '@nuxt/kit'
+import type { Nuxt, NuxtApp } from '@nuxt/schema'
 
 import { relative } from 'pathe'
 

packages/nuxt3/src/meta/runtime/composables.ts

@@ -1,7 +1,7 @@
 import { isFunction } from '@vue/shared'
 import { computed } from '@vue/reactivity'
 import type { ComputedGetter } from '@vue/reactivity'
-import type { MetaObject } from './types'
+import type { MetaObject } from '../../../../schema/src/types/meta'
 import { useNuxtApp } from '#app'
 
 /**

packages/nuxt3/src/meta/runtime/index.ts

@@ -1,2 +1,2 @@
 export * from './composables'
-export * from './types'
+export * from '../../../../schema/src/types/meta'

packages/nuxt3/src/pages/utils.ts

@@ -1,6 +1,7 @@
 import { basename, extname, relative, resolve } from 'pathe'
 import { encodePath } from 'ufo'
-import { Nuxt, resolveFiles, NuxtRoute } from '@nuxt/kit'
+import type { Nuxt, NuxtRoute } from '@nuxt/schema'
+import { resolveFiles } from '@nuxt/kit'
 import { kebabCase } from 'scule'
 
 enum SegmentParserState {

packages/nuxt3/test/auto-imports.test.ts

@@ -1,4 +1,4 @@
-import type { AutoImport } from '@nuxt/kit'
+import type { AutoImport } from '@nuxt/schema'
 import { expect } from 'chai'
 import * as VueFunctions from 'vue'
 import { AutoImportContext, updateAutoImportContext } from '../src/auto-imports/context'

packages/nuxt3/test/scan-components.test.ts

@@ -1,5 +1,5 @@
 import { resolve } from 'path'
-import { ComponentsDir } from '@nuxt/kit'
+import { ComponentsDir } from '@nuxt/schema'
 import { expect } from 'chai'
 import { scanComponents } from '../src/components/scan'
 

packages/schema/.gitignore

@@ -0,0 +1 @@
+/schema

packages/schema/README.md

@@ -0,0 +1,3 @@
+# Nuxt Schema
+
+> Cross-version Nuxt typedefs and defaults

packages/schema/build.config.ts

@@ -0,0 +1,33 @@
+import { defineBuildConfig } from 'unbuild'
+
+export default defineBuildConfig({
+  declaration: true,
+  emitCJS: false,
+  entries: [
+    {
+      input: 'src/config/index',
+      outDir: 'schema',
+      name: 'config',
+      builder: 'untyped',
+      defaults: {
+        rootDir: '/project/'
+      }
+    },
+    'src/index'
+  ],
+  externals: [
+    // Type imports
+    'nuxt3',
+    'vue-meta',
+    'vue',
+    'hookable',
+    'webpack',
+    'pkg-types',
+    'webpack-bundle-analyzer',
+    'rollup-plugin-visualizer',
+    'vite',
+    // Implicit
+    '@vue/compiler-core',
+    '@vue/shared ',
+  ]
+})

packages/schema/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "@nuxt/schema",
+  "version": "3.0.0",
+  "repository": "nuxt/framework",
+  "license": "MIT",
+  "type": "module",
+  "main": "./dist/index.mjs",
+  "types": "./dist/index.d.ts",
+  "files": [
+    "dist",
+    "schema"
+  ],
+  "scripts": {
+    "prepack": "unbuild"
+  },
+  "devDependencies": {
+    "@types/lodash.template": "^4",
+    "@types/semver": "^7",
+    "unbuild": "latest"
+  },
+  "dependencies": {
+    "create-require": "^1.1.1",
+    "defu": "^5.0.0",
+    "jiti": "^1.12.9",
+    "pathe": "^0.2.0",
+    "scule": "^0.2.1",
+    "std-env": "^3.0.1",
+    "ufo": "^0.7.9"
+  },
+  "engines": {
+    "node": "^14.16.0 || ^16.11.0 || ^17.0.0"
+  }
+}

packages/schema/src/config/_common.ts

@@ -684,7 +684,7 @@ export default {
    *   }
    * }
    * ```
-   * @type {typeof import('../src/types/runtime-config').PrivateRuntimeConfig}
+   * @type {typeof import('../src/types/config').PrivateRuntimeConfig}
    * @version 2
    * @version 3
    */
@@ -709,7 +709,7 @@ export default {
    *   }
    * }
    * ```
-   * @type {typeof import('../src/types/runtime-config').PublicRuntimeConfig}
+   * @type {typeof import('../src/types/config').PublicRuntimeConfig}
    * @version 2
    * @version 3
    */

packages/schema/src/index.ts

@@ -0,0 +1,13 @@
+
+// Types
+import './types/global'
+export * from './types/config'
+export * from './types/hooks'
+export * from './types/module'
+export * from './types/nuxt'
+export * from './types/components'
+export * from './types/imports'
+export * from './types/pages'
+
+// Schema
+export { default as NuxtConfigSchema } from './config/index'

packages/schema/src/types/config.ts

@@ -5,3 +5,10 @@ export interface NuxtOptions extends ConfigSchema { }
 type DeepPartial<T> = T extends Record<string, any> ? { [P in keyof T]?: DeepPartial<T[P]> | T[P] } : T
 
 export interface NuxtConfig extends DeepPartial<ConfigSchema> { }
+
+
+export interface PublicRuntimeConfig extends Record<string, any> { }
+export interface PrivateRuntimeConfig extends PublicRuntimeConfig { }
+
+type _RuntimeConfig = PublicRuntimeConfig & Partial<PrivateRuntimeConfig>
+export interface RuntimeConfig extends _RuntimeConfig { }

packages/schema/src/types/hooks.ts

@@ -1,9 +1,9 @@
 import type { IncomingMessage, ServerResponse } from 'http'
 import type { Compiler, Configuration, Stats } from 'webpack'
 import type { TSConfig } from 'pkg-types'
-import type { ModuleContainer } from '../module/container'
-import type { NuxtTemplate, Nuxt, NuxtApp } from '../types/nuxt'
-import type { AutoImport, AutoImportSource } from '../types/imports'
+import type { ModuleContainer } from './module'
+import type { NuxtTemplate, Nuxt, NuxtApp } from './nuxt'
+import type { AutoImport, AutoImportSource } from './imports'
 import type { NuxtConfig, NuxtOptions } from './config'
 import type { Component, ComponentsDir, ScanDir, ComponentsOptions } from './components'
 

packages/schema/src/types/module.ts

@@ -1,6 +1,6 @@
-import type { ModuleContainer } from '../module/container'
-import { Nuxt } from './nuxt'
 import { NuxtHooks } from './hooks'
+import type { Nuxt, NuxtTemplate } from "./nuxt";
+
 
 export interface NuxtCompatibilityConstraints {
   /**
@@ -71,3 +71,41 @@ export type ModuleInstallOptions =
   ModuleSrc |
   [ModuleSrc, ModuleOptions?] |
   Partial<ModuleInstallOptionsObj>
+
+/**
+* Legacy ModuleContainer for backwards compatibility with Nuxt 2 module format.
+*/
+export interface ModuleContainer {
+  nuxt: Nuxt
+  options: Nuxt['options']
+
+  /** @deprecated */
+  ready(): Promise<any>
+
+  /** @deprecated */
+  addVendor(): void
+
+  /** Renders given template using lodash template during build into the project buildDir (`.nuxt`).*/
+  addTemplate(template: string | NuxtTemplate): NuxtTemplate
+
+  /** Register a custom layout. If its name is 'error' it will override the default error layout. */
+  addLayout(tmpl: NuxtTemplate, name: string): any
+
+  /** Set the layout that will render Nuxt errors. It should already have been added via addLayout or addTemplate. */
+  addErrorLayout(dst: string): void
+
+  /** Adds a new server middleware to the end of the server middleware array. */
+  addServerMiddleware(arg1: any): void
+
+  /** Allows extending webpack build config by chaining `options.build.extend` function. */
+  extendBuild(fn): void
+
+  /** Allows extending routes by chaining `options.build.extendRoutes` function. */
+  extendRoutes(fn): void
+
+  /** Registers a module */
+  requireModule(nuxt: Nuxt, opts: any): Promise<void>
+
+  /** Registers a module */
+  addModule(nuxt: Nuxt, opts: any): Promise<void>
+}

packages/schema/src/types/pages.ts

@@ -0,0 +1,2 @@
+// TODO: Lost!
+export interface NuxtRoute { }

packages/vite/build.config.ts

@@ -7,7 +7,9 @@ export default defineBuildConfig({
     'src/index'
   ],
   dependencies: [
-    '@nuxt/kit',
     'vue'
+  ],
+  externals: [
+    '@nuxt/schema'
   ]
 })

packages/vite/package.json

@@ -13,6 +13,7 @@
     "prepack": "unbuild"
   },
   "devDependencies": {
+    "@nuxt/schema": "3.0.0",
     "unbuild": "latest",
     "vue": "3.2.22"
   },

packages/vite/src/css.ts

@@ -1,6 +1,7 @@
 import createResolver from 'postcss-import-resolver'
 import defu from 'defu'
-import { Nuxt, requireModule } from '@nuxt/kit'
+import { requireModule } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 import { ViteOptions } from './vite'
 import { distDir } from './dirs'
 

packages/vite/src/vite.ts

@@ -1,7 +1,7 @@
 import * as vite from 'vite'
 import { resolve } from 'pathe'
 import consola from 'consola'
-import type { Nuxt } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 import type { InlineConfig, SSROptions } from 'vite'
 import type { Options } from '@vitejs/plugin-vue'
 import { sanitizeFilePath } from 'mlly'

packages/webpack/build.config.ts

@@ -21,5 +21,8 @@ export default defineBuildConfig({
     'vue-style-loader',
     '@babel/core',
     'vue'
+  ],
+  externals: [
+    '@nuxt/schema'
   ]
 })

packages/webpack/package.json

@@ -56,6 +56,7 @@
     "webpackbar": "^5.0.2"
   },
   "devDependencies": {
+    "@nuxt/schema": "3.0.0",
     "@types/pify": "^5.0.1",
     "@types/terser-webpack-plugin": "^5.0.4",
     "@types/webpack-bundle-analyzer": "^4.4.1",

packages/webpack/src/utils/config.ts

@@ -1,7 +1,7 @@
 import consola from 'consola'
 import { cloneDeep } from 'lodash-es'
 import type { Configuration } from 'webpack'
-import type { Nuxt } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 
 export interface WebpackConfigContext extends ReturnType<typeof createWebpackConfigContext>{ }
 

packages/webpack/src/utils/postcss.ts

@@ -4,7 +4,8 @@ import consola from 'consola'
 import { createCommonJS } from 'mlly'
 import { defaults, merge, cloneDeep } from 'lodash-es'
 import createResolver from 'postcss-import-resolver'
-import { Nuxt, requireModule } from '@nuxt/kit'
+import { requireModule } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 
 const isPureObject = obj => obj !== null && !Array.isArray(obj) && typeof obj === 'object'
 

packages/webpack/src/webpack.ts

@@ -12,7 +12,7 @@ import type { Compiler, Watching } from 'webpack'
 import type { Context as WebpackDevMiddlewareContext, Options as WebpackDevMiddlewareOptions } from 'webpack-dev-middleware'
 import type { MiddlewareOptions as WebpackHotMiddlewareOptions } from 'webpack-hot-middleware'
 
-import type { Nuxt } from '@nuxt/kit'
+import type { Nuxt } from '@nuxt/schema'
 import { createMFS } from './utils/mfs'
 import { client, server } from './configs'
 import { createWebpackConfigContext, applyPresets, getWebpackConfig } from './utils/config'

yarn.lock

@@ -2425,6 +2425,7 @@ __metadata:
     "@nuxt/kit": 3.0.0
     "@nuxt/nitro": 3.0.0
     "@nuxt/postcss8": ^1.1.3
+    "@nuxt/schema": 3.0.0
     "@nuxt/types": ^2.15.8
     "@types/fs-extra": ^9.0.13
     "@types/hash-sum": ^1.0.0
@@ -2743,15 +2744,14 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@nuxt/kit@workspace:packages/kit"
   dependencies:
+    "@nuxt/schema": ^3.0.0
     "@types/lodash.template": ^4
     "@types/semver": ^7
     consola: ^2.15.3
-    create-require: ^1.1.1
     defu: ^5.0.0
     dotenv: ^10.0.0
     globby: ^11.0.4
     hash-sum: ^2.0.0
-    hookable: ^5.0.0
     jiti: ^1.12.9
     lodash.template: ^4.5.0
     mlly: ^0.3.13
@@ -2760,8 +2760,6 @@ __metadata:
     rc9: ^1.2.0
     scule: ^0.2.1
     semver: ^7.3.5
-    std-env: ^3.0.1
-    ufo: ^0.7.9
     unbuild: latest
     unctx: ^1.0.2
     untyped: ^0.3.0
@@ -2790,6 +2788,7 @@ __metadata:
     "@nuxt/design": 0.1.5
     "@nuxt/devalue": ^2.0.0
     "@nuxt/kit": 3.0.0
+    "@nuxt/schema": 3.0.0
     "@rollup/plugin-alias": ^3.1.8
     "@rollup/plugin-commonjs": ^21.0.1
     "@rollup/plugin-inject": ^4.0.3
@@ -2880,6 +2879,23 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@nuxt/schema@3.0.0, @nuxt/schema@^3.0.0, @nuxt/schema@workspace:packages/schema":
+  version: 0.0.0-use.local
+  resolution: "@nuxt/schema@workspace:packages/schema"
+  dependencies:
+    "@types/lodash.template": ^4
+    "@types/semver": ^7
+    create-require: ^1.1.1
+    defu: ^5.0.0
+    jiti: ^1.12.9
+    pathe: ^0.2.0
+    scule: ^0.2.1
+    std-env: ^3.0.1
+    ufo: ^0.7.9
+    unbuild: latest
+  languageName: unknown
+  linkType: soft
+
 "@nuxt/server-edge@npm:2.16.0-27282256.ab1c6cb4":
   version: 2.16.0-27282256.ab1c6cb4
   resolution: "@nuxt/server-edge@npm:2.16.0-27282256.ab1c6cb4"
@@ -3030,6 +3046,7 @@ __metadata:
   resolution: "@nuxt/vite-builder@workspace:packages/vite"
   dependencies:
     "@nuxt/kit": 3.0.0
+    "@nuxt/schema": 3.0.0
     "@vitejs/plugin-vue": ^1.9.4
     "@vitejs/plugin-vue-jsx": ^1.2.0
     autoprefixer: ^10.4.0
@@ -3137,6 +3154,7 @@ __metadata:
     "@babel/core": ^7.16.0
     "@nuxt/friendly-errors-webpack-plugin": ^2.5.2
     "@nuxt/kit": 3.0.0
+    "@nuxt/schema": 3.0.0
     "@types/pify": ^5.0.1
     "@types/terser-webpack-plugin": ^5.0.4
     "@types/webpack-bundle-analyzer": ^4.4.1
@@ -15142,6 +15160,7 @@ __metadata:
   dependencies:
     "@nuxt/design": 0.1.5
     "@nuxt/kit": 3.0.0
+    "@nuxt/schema": 3.0.0
     "@types/clear": ^0
     "@types/mri": ^1.1.1
     "@types/rimraf": ^3
@@ -15247,6 +15266,7 @@ __metadata:
     "@nuxt/design": ^0.1.5
     "@nuxt/kit": 3.0.0
     "@nuxt/nitro": 3.0.0
+    "@nuxt/schema": 3.0.0
     "@nuxt/vite-builder": 3.0.0
     "@nuxt/webpack-builder": 3.0.0
     "@types/hash-sum": ^1.0.0