feat: support plug-and-play, typescript runtime and native modules (#8389)

Co-authored-by: Clark Du <clark.duxin@gmail.com>

benchmarks/package.json

@@ -3,7 +3,7 @@
   "scripts": {
     "build": "npm run nuxt -- build",
     "start": "npm run build && npm run nuxt -- start",
-    "nuxt": "node -r esm ../packages/cli/bin/nuxt-cli.js",
+    "nuxt": "jiti ../packages/cli/bin/nuxt-cli.js",
     "bench:stateless": "ab -c1 -n3000 http://127.0.0.1:3000/stateless",
     "bench:stateless-big": "ab -c1 -n500 http://127.0.0.1:3000/stateless-big"
   }

distributions/nuxt-start/bin/nuxt-start.js

@@ -4,6 +4,8 @@ if (process.argv[2] !== 'start') {
   process.argv.splice(2, 0, 'start')
 }
 
+global.__NUXT_PATHS__ = (global.__NUXT_PATHS__ || []).concat(__dirname)
+
 const suffix = require('../package.json').name.includes('-edge') ? '-edge' : ''
 require('@nuxt/cli' + suffix).run()
   .catch((error) => {

distributions/nuxt-start/package.js

@@ -19,5 +19,19 @@ export default {
 
       await pkg.writePackage()
     }
-  }
+  },
+  ignoreUnused: [
+    // directly used by bin
+    '@nuxt/cli',
+    // discovered by config
+    '@nuxt/telemetry',
+    // vue-app externals for ssr
+    'node-fetch',
+    'vue',
+    'vue-client-only',
+    'vue-meta',
+    'vue-no-ssr',
+    'vue-router',
+    'vuex'
+  ]
 }

distributions/nuxt/bin/nuxt.js

@@ -1,5 +1,7 @@
 #!/usr/bin/env node
 
+global.__NUXT_PATHS__ = (global.__NUXT_PATHS__ || []).concat(__dirname)
+
 const suffix = require('../package.json').name.includes('-edge') ? '-edge' : ''
 require('@nuxt/cli' + suffix).run()
   .catch((error) => {

distributions/nuxt/package.js

@@ -9,5 +9,13 @@ export default {
         'README.md'
       ])
     }
-  }
+  },
+  ignoreUnused: [
+    // used by postinstall
+    '@nuxt/opencollective',
+    // discovered by config
+    '@nuxt/components',
+    '@nuxt/loading-screen',
+    '@nuxt/telemetry'
+  ]
 }

distributions/nuxt/package.json

@@ -48,7 +48,9 @@
     }
   ],
   "main": "dist/nuxt.js",
-  "bin": "bin/nuxt.js",
+  "bin": {
+    "nuxt": "./bin/nuxt.js"
+  },
   "files": [
     "bin",
     "dist",
@@ -65,8 +67,7 @@
     "@nuxt/generator": "2.14.12",
     "@nuxt/loading-screen": "^2.0.3",
     "@nuxt/opencollective": "^0.3.2",
-    "@nuxt/telemetry": "^1.3.0",
+    "@nuxt/telemetry": "^1.3.0"
-    "@nuxt/webpack": "2.14.12"
   },
   "engines": {
     "node": ">=10.13.0",

distributions/nuxt/src/index.js

@@ -1,4 +1,5 @@
 export * from '@nuxt/core'
 export * from '@nuxt/builder'
 export * from '@nuxt/generator'
+
 export { getWebpackConfig } from '@nuxt/cli'

package.json

@@ -12,18 +12,18 @@
   "scripts": {
     "audit": "improved-yarn-audit --ignore-dev-deps --min-severity moderate -e 1548",
     "build": "yarn clean && yarn pkg",
-    "changelog": "node -r esm scripts/changelog.js",
+    "changelog": "jiti scripts/changelog.js",
     "clean": "yarn clean:build && yarn clean:examples && yarn clean:test",
     "clean:build": "rimraf distributions/*/dist packages/*/dist",
     "clean:examples": "rimraf examples/*/dist examples/*/.nuxt",
     "clean:test": "rimraf test/fixtures/*/dist test/fixtures/*/.nuxt*/",
-    "dev": "node -r esm ./scripts/dev.js",
+    "dev": "jiti ./scripts/dev.js",
     "postinstall": "lerna link && yarn dev",
     "lint": "eslint --ext .js,.mjs,.vue .",
     "lint:app": "eslint-multiplexer eslint --ignore-path packages/vue-app/template/.eslintignore 'test/fixtures/!(missing-plugin)/.nuxt!(-dev)/**' | eslint-multiplexer -b",
     "ls-lint": "npx @ls-lint/ls-lint",
-    "nuxt": "node -r esm ./packages/cli/bin/nuxt-cli.js",
+    "nuxt": "jiti ./packages/cli/bin/nuxt-cli.js",
-    "pkg": "node -r esm ./scripts/package",
+    "pkg": "jiti ./scripts/package",
     "test": "yarn test:fixtures && yarn test:dev && yarn test:unit && test:types",
     "test:dev": "jest test/dev --forceExit",
     "test:e2e": "jest -i test/e2e --forceExit",
@@ -51,7 +51,6 @@
     "cross-spawn": "^7.0.3",
     "eslint": "^7.16.0",
     "eslint-multiplexer": "^2.0.0",
-    "esm": "^3.2.25",
     "execa": "^5.0.0",
     "express": "^4.17.1",
     "finalhandler": "^1.1.2",

packages/babel-preset-app/src/index.js

@@ -4,14 +4,14 @@ const coreJsMeta = {
       es6: 'es6',
       es7: 'es7'
     },
-    builtIns: '@babel/compat-data/corejs2-built-ins'
+    builtIns: require.resolve('@babel/compat-data/corejs2-built-ins')
   },
   3: {
     prefixes: {
       es6: 'es',
       es7: 'es'
     },
-    builtIns: 'core-js-compat/data'
+    builtIns: require.resolve('core-js-compat/data')
   }
 }
 

packages/builder/package.js

@@ -1,3 +1,7 @@
 export default {
-  build: true
+  build: true,
+  ignoreUnused: [
+    // used for legacy _ in template context
+    'lodash'
+  ]
 }

packages/builder/package.json

@@ -23,8 +23,7 @@
     "pify": "^5.0.0",
     "semver": "^7.3.4",
     "serialize-javascript": "^5.0.1",
-    "upath": "^2.0.1",
+    "upath": "^2.0.1"
-    "url-polyfill": "^1.1.12"
   },
   "publishConfig": {
     "access": "public"

packages/builder/src/builder.js

@@ -8,13 +8,7 @@ import hash from 'hash-sum'
 import pify from 'pify'
 import upath from 'upath'
 import semver from 'semver'
-
+import { debounce, omit, template, uniq, uniqBy } from 'lodash'
-import debounce from 'lodash/debounce'
-import omit from 'lodash/omit'
-import template from 'lodash/template'
-import uniq from 'lodash/uniq'
-import uniqBy from 'lodash/uniqBy'
-
 import {
   r,
   createRoutes,
@@ -27,6 +21,9 @@ import {
   TARGETS
 } from '@nuxt/utils'
 
+import { template as VueAppTemplate } from '@nuxt/vue-app'
+import { BundleBuilder as WebpackBuilder } from '@nuxt/webpack'
+
 import Ignore from './ignore'
 import BuildContext from './context/build'
 import TemplateContext from './context/template'
@@ -74,7 +71,7 @@ export default class Builder {
     }
 
     // Resolve template
-    this.template = this.options.build.template || '@nuxt/vue-app'
+    this.template = this.options.build.template || VueAppTemplate
     if (typeof this.template === 'string') {
       this.template = this.nuxt.resolver.requireModule(this.template).template
     }
@@ -96,7 +93,7 @@ export default class Builder {
     const context = new BuildContext(this)
 
     if (typeof BundleBuilder !== 'function') {
-      ({ BundleBuilder } = require('@nuxt/webpack'))
+      BundleBuilder = WebpackBuilder
     }
 
     return new BundleBuilder(context)

packages/builder/src/context/template.js

@@ -1,10 +1,10 @@
 import hash from 'hash-sum'
 import consola from 'consola'
-import uniqBy from 'lodash/uniqBy'
+import { uniqBy } from 'lodash'
 import serialize from 'serialize-javascript'
 
 import devalue from '@nuxt/devalue'
-import { r, wp, wChunk, serializeFunction, isFullStatic } from '@nuxt/utils'
+import { r, wp, wChunk, serializeFunction, isFullStatic, requireModule } from '@nuxt/utils'
 
 export default class TemplateContext {
   constructor (builder, options) {
@@ -70,7 +70,7 @@ export default class TemplateContext {
           get (target, prop) {
             if (!lodash) {
               consola.warn('Avoid using _ inside templates')
-              lodash = require('lodash')
+              lodash = requireModule('lodash')
             }
             return lodash[prop]
           }

packages/builder/test/__utils__/index.js

@@ -17,7 +17,7 @@ export const createNuxt = () => ({
   hook: jest.fn(),
   callHook: jest.fn(),
   resolver: {
-    requireModule: jest.fn(() => ({ template: 'builder-template' })),
+    requireModule: jest.fn(),
     resolveAlias: jest.fn(src => `resolveAlias(${src})`),
     resolvePath: jest.fn(src => `resolvePath(${src})`)
   }

packages/builder/test/builder.ctor.test.js

@@ -1,9 +1,11 @@
 import consola from 'consola'
+import { template as VueAppTemplate } from '@nuxt/vue-app'
 import { relativeTo, determineGlobals } from '@nuxt/utils'
 
 import Builder from '../src/builder'
 import { createNuxt } from './__utils__'
 
+jest.mock('@nuxt/vue-app')
 jest.mock('@nuxt/utils')
 jest.mock('../src/ignore')
 
@@ -37,9 +39,7 @@ describe('builder: builder constructor', () => {
 
     expect(builder._buildStatus).toEqual(1)
 
-    expect(nuxt.resolver.requireModule).toBeCalledTimes(1)
+    expect(builder.template).toBe(VueAppTemplate)
-    expect(nuxt.resolver.requireModule).toBeCalledWith('@nuxt/vue-app')
-    expect(builder.template).toEqual('builder-template')
 
     expect(builder.bundleBuilder).toBe(bundleBuilder)
   })
@@ -112,6 +112,5 @@ describe('builder: builder constructor', () => {
     const builder = new Builder(nuxt, bundleBuilder)
 
     expect(builder.template).toBe(nuxt.options.build.template)
-    expect(nuxt.resolver.requireModule).not.toBeCalled()
   })
 })

packages/builder/test/builder.generate.test.js

@@ -1,8 +1,8 @@
 import path from 'path'
+import lodash from 'lodash'
 import Glob from 'glob'
 import fs from 'fs-extra'
 import consola from 'consola'
-import template from 'lodash/template'
 import { r, createRoutes, stripWhitespace } from '@nuxt/utils'
 import { BundleBuilder } from '@nuxt/webpack'
 import Builder from '../src/builder'
@@ -10,9 +10,12 @@ import TemplateContext from '../src/context/template'
 import { createNuxt } from './__utils__'
 
 jest.mock('glob')
+jest.mock('lodash', () => ({
+  ...jest.requireActual('lodash'),
+  template: jest.fn()
+}))
 jest.mock('pify', () => fn => fn)
 jest.mock('fs-extra')
-jest.mock('lodash/template')
 jest.mock('@nuxt/utils')
 jest.mock('../src/context/template', () => jest.fn())
 jest.mock('../src/ignore', () => function () {
@@ -373,7 +376,7 @@ describe('builder: builder generate', () => {
     const builder = new Builder(nuxt, BundleBuilder)
     builder.relativeToBuild = jest.fn()
     const templateFn = jest.fn(() => 'compiled content')
-    template.mockImplementation(() => templateFn)
+    lodash.template.mockImplementation(() => templateFn)
     stripWhitespace.mockImplementation(content => `trim(${content})`)
 
     const templateContext = {
@@ -403,10 +406,10 @@ describe('builder: builder generate', () => {
     expect(fs.readFile).nthCalledWith(1, '/var/nuxt/src/foo.js', 'utf8')
     expect(fs.readFile).nthCalledWith(2, '/var/nuxt/src/bar.js', 'utf8')
     expect(fs.readFile).nthCalledWith(3, '/var/nuxt/src/baz.js', 'utf8')
-    expect(template).toBeCalledTimes(3)
+    expect(lodash.template).toBeCalledTimes(3)
-    expect(template).nthCalledWith(1, 'readFile(/var/nuxt/src/foo.js, utf8)', templateContext.templateOptions)
+    expect(lodash.template).nthCalledWith(1, 'readFile(/var/nuxt/src/foo.js, utf8)', templateContext.templateOptions)
-    expect(template).nthCalledWith(2, 'readFile(/var/nuxt/src/bar.js, utf8)', templateContext.templateOptions)
+    expect(lodash.template).nthCalledWith(2, 'readFile(/var/nuxt/src/bar.js, utf8)', templateContext.templateOptions)
-    expect(template).nthCalledWith(3, 'readFile(/var/nuxt/src/baz.js, utf8)', templateContext.templateOptions)
+    expect(lodash.template).nthCalledWith(3, 'readFile(/var/nuxt/src/baz.js, utf8)', templateContext.templateOptions)
     expect(templateFn).toBeCalledTimes(3)
     expect(templateFn).nthCalledWith(1, {
       ...templateContext.templateVars,
@@ -442,7 +445,7 @@ describe('builder: builder generate', () => {
     const nuxt = createNuxt()
     const builder = new Builder(nuxt, BundleBuilder)
     builder.relativeToBuild = jest.fn()
-    template.mockImplementation(() => {
+    lodash.template.mockImplementation(() => {
       throw new Error('compile failed')
     })
 

packages/builder/test/builder.watch.test.js

@@ -1,24 +1,25 @@
 import path from 'path'
 import chokidar from 'chokidar'
 import upath from 'upath'
-import debounce from 'lodash/debounce'
+import { debounce } from 'lodash'
 import { r, isString, isPureObject } from '@nuxt/utils'
-
 import { BundleBuilder } from '@nuxt/webpack'
 import Builder from '../src/builder'
 import { createNuxt } from './__utils__'
-jest.mock('@nuxt/webpack')
 
+jest.mock('lodash', () => ({
+  ...jest.requireActual('lodash'),
+  debounce: jest.fn(fn => fn)
+}))
 jest.mock('chokidar', () => ({
   watch: jest.fn().mockReturnThis(),
   on: jest.fn().mockReturnThis(),
   close: jest.fn().mockReturnThis()
 }))
 jest.mock('upath', () => ({ normalizeSafe: jest.fn(src => src) }))
-jest.mock('lodash/debounce', () => jest.fn(fn => fn))
 jest.mock('@nuxt/utils')
-jest.mock('../src/ignore')
 jest.mock('@nuxt/webpack')
+jest.mock('../src/ignore')
 
 describe('builder: builder watch', () => {
   beforeEach(() => {

packages/builder/test/context/template.test.js

@@ -6,7 +6,11 @@ import devalue from '@nuxt/devalue'
 import { r, wp, wChunk, serializeFunction } from '@nuxt/utils'
 import TemplateContext from '../../src/context/template'
 
-jest.mock('lodash', () => ({ test: 'test lodash', warn: 'only once' }))
+jest.mock('lodash', () => ({
+  ...jest.requireActual('lodash'),
+  test: 'test lodash',
+  warn: 'only once'
+}))
 
 describe('builder: buildContext', () => {
   const builder = {

packages/cli/package.js

@@ -1,3 +1,5 @@
 export default {
-  build: true
+  build: true,
+  ignoreUnused: ['crc'],
+  externals: ['crc/lib/crc32']
 }

packages/cli/package.json

@@ -20,13 +20,14 @@
     "connect": "^3.7.0",
     "consola": "^2.15.0",
     "crc": "^3.8.0",
+    "defu": "^3.2.2",
     "destr": "^1.0.1",
-    "esm": "^3.2.25",
     "execa": "^5.0.0",
     "exit": "^0.1.2",
     "fs-extra": "^9.0.1",
     "globby": "^11.0.1",
     "hable": "^3.0.0",
+    "lodash": "^4.4.2",
     "minimist": "^1.2.5",
     "opener": "1.5.2",
     "pretty-bytes": "^5.4.1",

packages/cli/src/commands/webpack.js

@@ -1,6 +1,6 @@
 import util from 'util'
 import consola from 'consola'
-import get from 'lodash/get'
+import { get } from 'lodash'
 import { common } from '../options'
 
 export default {

packages/cli/src/imports.js

@@ -1,31 +1,18 @@
-import path from 'path'
+import { requireModule } from '@nuxt/utils'
 
-const localNodeModules = path.resolve(process.cwd(), 'node_modules')
+export const importModule = (id) => {
-
-// Prefer importing modules from local node_modules (for NPX and global bin)
-async function _import (modulePath) {
-  for (const mp of [
-    path.resolve(localNodeModules, modulePath),
-    modulePath
-  ]) {
   try {
-      return await import(mp)
+    return Promise.resolve(requireModule(id))
-    } catch (e) {
+  } catch (err) {
-      if (e.code !== 'MODULE_NOT_FOUND') {
+    if (err.code === 'MODULE_NOT_FOUND') {
-        throw e
+      err.message = `Cannot import module '${id}'`
     }
+    return Promise.reject(err)
   }
-  }
-
-  const error = new Error(`Cannot import module '${modulePath}'`)
-  error.code = 'MODULE_NOT_FOUND'
-  throw error
 }
 
-export const builder = () => _import('@nuxt/builder')
+export const builder = () => importModule('@nuxt/builder')
-export const webpack = () => _import('@nuxt/webpack')
+export const webpack = () => importModule('@nuxt/webpack')
-export const generator = () => _import('@nuxt/generator')
+export const generator = () => importModule('@nuxt/generator')
-export const core = () => _import('@nuxt/core')
+export const core = () => importModule('@nuxt/core')
-export const server = () => _import('@nuxt/server')
+export const server = () => importModule('@nuxt/server')
-
-export const importModule = _import

packages/cli/src/run.js

@@ -2,6 +2,7 @@ import { existsSync } from 'fs'
 import { resolve } from 'path'
 import execa from 'execa'
 import consola from 'consola'
+import { requireModule } from '@nuxt/utils'
 import { name as pkgName } from '../package.json'
 import NuxtCommand from './command'
 import setup from './setup'
@@ -12,7 +13,7 @@ export default async function run (_argv, hooks = {}) {
   // Check for not installing both nuxt and nuxt-edge
   const dupPkg = pkgName === '@nuxt/cli-edge' ? 'cli' : 'cli-edge'
   const dupPkgJSON = resolve(__dirname, '../..' /* dist/../.. */, dupPkg, 'package.json')
-  if (existsSync(dupPkgJSON) && require(dupPkgJSON).name !== '@nuxt/' + dupPkg) {
+  if (existsSync(dupPkgJSON) && requireModule(dupPkgJSON).name !== '@nuxt/' + dupPkg) {
     consola.warn('Both `nuxt` and `nuxt-edge` dependencies are installed! Please choose one and remove the other one from dependencies.')
   }
 

packages/cli/src/utils/config.js

@@ -1,5 +1,5 @@
 import path from 'path'
-import defaultsDeep from 'lodash/defaultsDeep'
+import defu from 'defu'
 import { loadNuxtConfig as _loadNuxtConfig, getDefaultNuxtConfig } from '@nuxt/config'
 
 export async function loadNuxtConfig (argv, configContext) {
@@ -24,10 +24,10 @@ export async function loadNuxtConfig (argv, configContext) {
   }
 
   // Server options
-  options.server = defaultsDeep({
+  options.server = defu({
-    port: argv.port || undefined,
+    port: argv.port || null,
-    host: argv.hostname || undefined,
+    host: argv.hostname || null,
-    socket: argv['unix-socket'] || undefined
+    socket: argv['unix-socket'] || null
   }, options.server || {}, getDefaultNuxtConfig().server)
 
   return options

packages/cli/src/utils/serve.js

@@ -5,6 +5,7 @@ import connect from 'connect'
 import serveStatic from 'serve-static'
 import compression from 'compression'
 import { getNuxtConfig } from '@nuxt/config'
+import { requireModule } from '@nuxt/utils'
 import { showBanner } from '../utils/banner'
 import * as imports from '../imports'
 
@@ -16,7 +17,7 @@ export async function serve (cmd) {
 
   try {
     // overwrites with build config
-    const buildConfig = require(join(options.buildDir, 'nuxt/config.json'))
+    const buildConfig = requireModule(join(options.buildDir, 'nuxt/config.json'))
     options.target = buildConfig.target
   } catch (err) { }
 

packages/cli/test/unit/__snapshots__/webpack.test.js.snap

@@ -2,7 +2,7 @@
 
 exports[`webpack getWebpackConfig() 1`] = `
 "Object {
-  \\"loader\\": \\"vue-loader\\",
+  \\"loader\\": \\"<nuxtDir>/node_modules/vue-loader/lib/index.js\\",
   \\"options\\": Object {
     \\"productionMode\\": true,
     \\"transformAssetUrls\\": Object {
@@ -24,7 +24,7 @@ exports[`webpack nuxt webpack devtool 1`] = `
 exports[`webpack nuxt webpack module.rules 1`] = `
 "Array [
   Object {
-    \\"loader\\": \\"vue-loader\\",
+    \\"loader\\": \\"<nuxtDir>/node_modules/vue-loader/lib/index.js\\",
     \\"options\\": Object {
       \\"productionMode\\": true,
       \\"transformAssetUrls\\": Object {
@@ -90,13 +90,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
         \\"resourceQuery\\": /module/,
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -107,7 +107,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -124,13 +124,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
       Object {
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -138,7 +138,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -161,13 +161,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
         \\"resourceQuery\\": /module/,
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -178,7 +178,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -195,13 +195,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
       Object {
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -209,7 +209,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -232,13 +232,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
         \\"resourceQuery\\": /module/,
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -249,7 +249,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -272,13 +272,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
       Object {
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -286,7 +286,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -315,13 +315,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
         \\"resourceQuery\\": /module/,
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -332,7 +332,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -345,7 +345,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"sass-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/sass-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"sassOptions\\": Object {
                 \\"indentedSyntax\\": true,
@@ -358,13 +358,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
       Object {
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -372,7 +372,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -385,7 +385,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"sass-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/sass-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"sassOptions\\": Object {
                 \\"indentedSyntax\\": true,
@@ -404,13 +404,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
         \\"resourceQuery\\": /module/,
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -421,7 +421,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -434,7 +434,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"sass-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/sass-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
@@ -444,13 +444,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
       Object {
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -458,7 +458,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -471,7 +471,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"sass-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/sass-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
@@ -487,13 +487,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
         \\"resourceQuery\\": /module/,
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -504,7 +504,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -527,13 +527,13 @@ exports[`webpack nuxt webpack module.rules 1`] = `
       Object {
         \\"use\\": Array [
           Object {
-            \\"loader\\": \\"vue-style-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/vue-style-loader/index.js\\",
             \\"options\\": Object {
               \\"sourceMap\\": false,
             },
           },
           Object {
-            \\"loader\\": \\"css-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/css-loader/dist/cjs.js\\",
             \\"options\\": Object {
               \\"esModule\\": false,
               \\"importLoaders\\": 2,
@@ -541,7 +541,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
             },
           },
           Object {
-            \\"loader\\": \\"postcss-loader\\",
+            \\"loader\\": \\"<nuxtDir>/node_modules/postcss-loader/src/index.js\\",
             \\"options\\": Object {
               \\"order\\": \\"presetEnvAndCssnanoLast\\",
               \\"plugins\\": Array [
@@ -568,7 +568,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
     \\"test\\": /\\\\.(png|jpe?g|gif|svg|webp|avif)$/i,
     \\"use\\": Array [
       Object {
-        \\"loader\\": \\"url-loader\\",
+        \\"loader\\": \\"<nuxtDir>/node_modules/url-loader/dist/cjs.js\\",
         \\"options\\": Object {
           \\"esModule\\": false,
           \\"limit\\": 1000,
@@ -581,7 +581,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
     \\"test\\": /\\\\.(woff2?|eot|ttf|otf)(\\\\?.*)?$/i,
     \\"use\\": Array [
       Object {
-        \\"loader\\": \\"url-loader\\",
+        \\"loader\\": \\"<nuxtDir>/node_modules/url-loader/dist/cjs.js\\",
         \\"options\\": Object {
           \\"esModule\\": false,
           \\"limit\\": 1000,
@@ -594,7 +594,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
     \\"test\\": /\\\\.(webm|mp4|ogv)$/i,
     \\"use\\": Array [
       Object {
-        \\"loader\\": \\"file-loader\\",
+        \\"loader\\": \\"<nuxtDir>/node_modules/file-loader/dist/cjs.js\\",
         \\"options\\": Object {
           \\"esModule\\": false,
           \\"name\\": \\"videos/[name].[contenthash:7].[ext]\\",
@@ -608,7 +608,7 @@ exports[`webpack nuxt webpack module.rules 1`] = `
 
 exports[`webpack nuxt webpack module.rules loader=.*-loader 1`] = `
 "Object {
-  \\"loader\\": \\"vue-loader\\",
+  \\"loader\\": \\"<nuxtDir>/node_modules/vue-loader/lib/index.js\\",
   \\"options\\": Object {
     \\"productionMode\\": true,
     \\"transformAssetUrls\\": Object {
@@ -625,7 +625,7 @@ exports[`webpack nuxt webpack module.rules loader=.*-loader 1`] = `
 
 exports[`webpack nuxt webpack module.rules loader=vue- 1`] = `
 "Object {
-  \\"loader\\": \\"vue-loader\\",
+  \\"loader\\": \\"<nuxtDir>/node_modules/vue-loader/lib/index.js\\",
   \\"options\\": Object {
     \\"productionMode\\": true,
     \\"transformAssetUrls\\": Object {

packages/config/package.json

@@ -17,8 +17,8 @@
     "defu": "^3.2.2",
     "destr": "^1.0.1",
     "dotenv": "^8.2.0",
-    "esm": "^3.2.25",
     "jiti": "^0.1.17",
+    "lodash": "^4.17.20",
     "rc9": "^1.2.0",
     "std-env": "^2.2.1"
   },

packages/config/src/config/_common.js

@@ -1,4 +1,4 @@
-import capitalize from 'lodash/capitalize'
+import { capitalize } from 'lodash'
 import env from 'std-env'
 import { TARGETS } from '@nuxt/utils'
 

packages/config/src/load.js

@@ -4,28 +4,28 @@ import defu from 'defu'
 import consola from 'consola'
 import dotenv from 'dotenv'
 import { clearRequireCache, scanRequireTree } from '@nuxt/utils'
-import esm from 'esm'
+import jiti from 'jiti'
 import _createRequire from 'create-require'
 import destr from 'destr'
 import * as rc from 'rc9'
 import { defaultNuxtConfigFile } from './config'
 
 const isJest = typeof jest !== 'undefined'
+const _require = isJest ? _createRequire(__filename) : jiti(__filename)
 
 export async function loadNuxtConfig ({
   rootDir = '.',
   envConfig = {},
   configFile = defaultNuxtConfigFile,
   configContext = {},
-  configOverrides = {},
+  configOverrides = {}
-  createRequire = module => isJest ? _createRequire(module.filename) : esm(module, { cache: false })
 } = {}) {
   rootDir = path.resolve(rootDir)
 
   let options = {}
 
   try {
-    configFile = require.resolve(path.resolve(rootDir, configFile))
+    configFile = _require.resolve(path.resolve(rootDir, configFile))
   } catch (e) {
     if (e.code !== 'MODULE_NOT_FOUND') {
       throw (e)
@@ -56,7 +56,6 @@ export async function loadNuxtConfig ({
   if (configFile) {
     // Clear cache
     clearRequireCache(configFile)
-    const _require = createRequire(module)
     options = _require(configFile) || {}
     if (options.default) {
       options = options.default

packages/config/src/options.js

@@ -1,9 +1,7 @@
 import path from 'path'
 import fs from 'fs'
-import defaultsDeep from 'lodash/defaultsDeep'
+import { defaultsDeep, pick, uniq } from 'lodash'
 import defu from 'defu'
-import pick from 'lodash/pick'
-import uniq from 'lodash/uniq'
 import consola from 'consola'
 import destr from 'destr'
 import { TARGETS, MODES, guardDir, isNonEmptyString, isPureObject, isUrl, getMainModule, urlJoin, getPKG } from '@nuxt/utils'
@@ -465,20 +463,22 @@ export function getNuxtConfig (_options) {
     staticAssets.versionBase = urlJoin(staticAssets.base, staticAssets.version)
   }
 
-  // createRequire factory
+  // createRequire
-  if (options.createRequire === undefined) {
   const isJest = typeof jest !== 'undefined'
-    options.createRequire = isJest ? false : 'esm'
+  const defaultCreateRequire = isJest ? 'native' : 'jiti'
-  }
+
-  if (options.createRequire === 'esm') {
+  options.createRequire = process.env.NUXT_CREATE_REQUIRE || options.createRequire || defaultCreateRequire
-    const esm = require('esm')
+
-    options.createRequire = module => esm(module, { cache: false })
+  if (options.createRequire === 'native') {
+    const createRequire = require('create-require')
+    options.createRequire = p => createRequire(typeof p === 'string' ? p : p.filename)
   } else if (options.createRequire === 'jiti') {
     const jiti = require('jiti')
-    options.createRequire = module => jiti(module.filename)
+    options.createRequire = p => jiti(typeof p === 'string' ? p : p.filename)
   } else if (typeof options.createRequire !== 'function') {
-    const createRequire = require('create-require')
+    throw new TypeError(
-    options.createRequire = module => createRequire(module.filename)
+      `Unsupported createRequire value ${options.createRequire}! Possible values: "native", "jiti", <Function>`
+    )
   }
 
   // Indicator

packages/core/package.json

@@ -9,17 +9,14 @@
   ],
   "dependencies": {
     "@nuxt/config": "2.14.12",
-    "@nuxt/devalue": "^1.2.4",
     "@nuxt/server": "2.14.12",
     "@nuxt/utils": "2.14.12",
-    "@nuxt/vue-renderer": "2.14.12",
     "consola": "^2.15.0",
-    "debug": "^4.2.0",
+    "create-require": "^1.1.1",
-    "esm": "^3.2.25",
     "fs-extra": "^9.0.1",
     "hable": "^3.0.0",
     "hash-sum": "^2.0.0",
-    "std-env": "^2.2.1"
+    "lodash": "^4.17.20"
   },
   "publishConfig": {
     "access": "public"

packages/core/src/module.js

@@ -121,11 +121,13 @@ export default class ModuleContainer {
     )
   }
 
-  requireModule (moduleOpts) {
+  requireModule (moduleOpts, { requirePath } = {}) {
-    return this.addModule(moduleOpts)
+    return this.addModule(moduleOpts, undefined, { requirePath })
   }
 
-  async addModule (moduleOpts) {
+  async addModule (moduleOpts, arg2, arg3) {
+    // Arg2 was previously used for requireOnce which is ignored now
+    const { requirePath } = { ...arg2, ...arg3 }
     let src
     let options
     let handler
@@ -154,7 +156,7 @@ export default class ModuleContainer {
     // Resolve handler
     if (!handler) {
       try {
-        handler = this.nuxt.resolver.requireModule(src, { useESM: true })
+        handler = this.nuxt.resolver.requireModule(src, { requirePath })
       } catch (error) {
         if (error.code !== 'MODULE_NOT_FOUND') {
           throw error

packages/core/src/nuxt.js

@@ -1,5 +1,5 @@
 
-import isPlainObject from 'lodash/isPlainObject'
+import { isPlainObject } from 'lodash'
 import consola from 'consola'
 import Hookable from 'hable'
 

packages/core/src/resolver.js

@@ -1,6 +1,7 @@
 import { resolve, join } from 'path'
 import fs from 'fs-extra'
 import consola from 'consola'
+import createRequire from 'create-require'
 
 import {
   startsWithRootAlias,
@@ -20,23 +21,20 @@ export default class Resolver {
     this.resolveModule = this.resolveModule.bind(this)
     this.requireModule = this.requireModule.bind(this)
 
-    const { createRequire } = this.options
+    this._createRequire = this.options.createRequire || createRequire
-    this._require = createRequire ? createRequire(module) : module.require
+    this._require = this._createRequire(__filename)
-
-    this._resolve = require.resolve
   }
 
-  resolveModule (path) {
+  resolveModule (path, { requirePath } = {}) {
     try {
-      return this._resolve(path, {
+      return this._require.resolve(path, {
-        paths: this.options.modulesDir
+        paths: [
+          requirePath || __dirname,
+          ...[].concat(this.options.modulesDir)
+        ]
       })
     } catch (error) {
       if (error.code !== 'MODULE_NOT_FOUND') {
-        // TODO: remove after https://github.com/facebook/jest/pull/8487 released
-        if (process.env.NODE_ENV === 'test' && error.message.startsWith('Cannot resolve module')) {
-          return
-        }
         throw error
       }
     }
@@ -54,7 +52,7 @@ export default class Resolver {
     return resolve(this.options.srcDir, path)
   }
 
-  resolvePath (path, { alias, isAlias = alias, module, isModule = module, isStyle } = {}) {
+  resolvePath (path, { alias, isAlias = alias, module, isModule = module, isStyle, requirePath } = {}) {
     // TODO: Remove in Nuxt 3
     if (alias) {
       consola.warn('Using alias is deprecated and will be removed in Nuxt 3. Use `isAlias` instead.')
@@ -72,7 +70,7 @@ export default class Resolver {
 
     // Try to resolve it as a regular module
     if (isModule !== false) {
-      resolvedPath = this.resolveModule(path)
+      resolvedPath = this.resolveModule(path, { requirePath })
     }
 
     // Try to resolve alias
@@ -119,7 +117,7 @@ export default class Resolver {
     throw new Error(`Cannot resolve "${path}" from "${resolvedPath}"`)
   }
 
-  requireModule (path, { esm, useESM = esm, alias, isAlias = alias, intropDefault, interopDefault = intropDefault } = {}) {
+  requireModule (path, { alias, isAlias = alias, intropDefault, interopDefault = intropDefault, requirePath } = {}) {
     let resolvedPath = path
     let requiredModule
 
@@ -130,15 +128,12 @@ export default class Resolver {
     if (alias) {
       consola.warn('Using alias is deprecated and will be removed in Nuxt 3. Use `isAlias` instead.')
     }
-    if (esm) {
-      consola.warn('Using esm is deprecated and will be removed in Nuxt 3. Use `useESM` instead.')
-    }
 
     let lastError
 
     // Try to resolve path
     try {
-      resolvedPath = this.resolvePath(path, { isAlias })
+      resolvedPath = this.resolvePath(path, { isAlias, requirePath })
     } catch (e) {
       lastError = e
     }
@@ -151,18 +146,10 @@ export default class Resolver {
       clearRequireCache(resolvedPath)
     }
 
-    // By default use esm only for js,mjs files outside of node_modules
-    if (useESM === undefined) {
-      useESM = !isExternal && /.(js|mjs)$/.test(resolvedPath)
-    }
-
     // Try to require
     try {
-      if (useESM) {
+      const _require = requirePath ? this._createRequire(requirePath) : this._require
-        requiredModule = this._require(resolvedPath)
+      requiredModule = _require(resolvedPath)
-      } else {
-        requiredModule = require(resolvedPath)
-      }
     } catch (e) {
       lastError = e
     }

packages/core/test/module.test.js

@@ -318,7 +318,7 @@ describe('core: module', () => {
     module.requireModule(moduleOpts)
 
     expect(module.addModule).toBeCalledTimes(1)
-    expect(module.addModule).toBeCalledWith(moduleOpts)
+    expect(module.addModule).toBeCalledWith(moduleOpts, undefined, { requirePath: undefined })
   })
 
   test('should add string module', async () => {
@@ -332,7 +332,7 @@ describe('core: module', () => {
     const result = await module.addModule('moduleTest')
 
     expect(requireModule).toBeCalledTimes(1)
-    expect(requireModule).toBeCalledWith('moduleTest', { useESM: true })
+    expect(requireModule).toBeCalledWith('moduleTest', { requirePath: undefined })
     expect(module.requiredModules).toEqual({
       moduleTest: {
         handler: expect.any(Function),
@@ -381,7 +381,7 @@ describe('core: module', () => {
     const result = await module.addModule(['moduleTest', { test: true }])
 
     expect(requireModule).toBeCalledTimes(1)
-    expect(requireModule).toBeCalledWith('moduleTest', { useESM: true })
+    expect(requireModule).toBeCalledWith('moduleTest', { requirePath: undefined })
     expect(module.requiredModules).toEqual({
       moduleTest: {
         handler: expect.any(Function),

packages/core/test/resolver.test.js

@@ -5,13 +5,14 @@ import { startsWithRootAlias, startsWithSrcAlias } from '@nuxt/utils'
 
 import Resolver from '../src/resolver'
 
-jest.mock('esm', () => jest.fn(() => jest.fn()))
 jest.mock('fs-extra')
 jest.mock('@nuxt/utils')
 
 jest.spyOn(path, 'join')
 jest.spyOn(path, 'resolve')
 
+const modulesDir = path.resolve(__dirname, './__modules__')
+
 describe.posix('core: resolver', () => {
   beforeEach(() => {
     jest.clearAllMocks()
@@ -33,40 +34,22 @@ describe.posix('core: resolver', () => {
 
   test('should call require.resolve in resolveModule', () => {
     const resolver = new Resolver({
-      options: { modulesDir: '/var/nuxt/node_modules' }
+      options: { modulesDir }
     })
-    const resolve = resolver._resolve = jest.fn(() => '/var/nuxt/resolver/module')
 
-    const modulePath = resolver.resolveModule('/var/nuxt/resolver')
+    const modulePath = resolver.resolveModule('__resolver__')
 
-    expect(modulePath).toEqual('/var/nuxt/resolver/module')
+    expect(modulePath).toEqual(path.resolve(modulesDir, './__resolver__.js'))
-    expect(resolve).toBeCalledTimes(1)
-    expect(resolve).toBeCalledWith('/var/nuxt/resolver', { paths: '/var/nuxt/node_modules' })
   })
 
   test('should return undefined when module is not found', () => {
     const resolver = new Resolver({
-      options: { modulesDir: '/var/nuxt/node_modules' }
+      options: { modulesDir }
-    })
-    const resolve = resolver._resolve = jest.fn(() => {
-      const err = new Error()
-      err.code = 'MODULE_NOT_FOUND'
-      throw err
     })
 
-    const modulePath = resolver.resolveModule('/var/nuxt/resolver')
+    const modulePath = resolver.resolveModule('non-exist-module')
 
     expect(modulePath).toBeUndefined()
-    expect(resolve).toBeCalledTimes(1)
-  })
-
-  test('should throw error when require.resolve failed', () => {
-    const resolver = new Resolver({
-      options: { modulesDir: '/var/nuxt/node_modules' }
-    })
-    resolver._resolve = jest.fn(() => { throw new Error('resolve failed') })
-
-    expect(() => resolver.resolveModule('/var/nuxt/resolver')).toThrow('resolve failed')
   })
 
   test('should resolve root alias', () => {
@@ -380,18 +363,6 @@ describe.posix('core: resolver', () => {
       expect(resolvedModule).toEqual({ default: 'resolved module' })
     })
 
-    test('should require common module', () => {
-      const resolver = new Resolver({
-        options: {}
-      })
-      resolver.resolvePath = jest.fn(() => 'path')
-      resolver._require = jest.fn(() => ({ default: 'resolved module' }))
-
-      const resolvedModule = resolver.requireModule('path', { useESM: false })
-
-      expect(resolvedModule).toBe(path)
-    })
-
     test('should throw error if resolvePath failed', () => {
       const resolver = new Resolver({
         options: {}
@@ -444,11 +415,6 @@ describe.posix('core: resolver', () => {
       })
       resolver.resolvePath = jest.fn().mockReturnValue('/var/nuxt/resolver/file.js')
       resolver._require = jest.fn()
-
-      resolver.requireModule('/var/nuxt/resolver/file.js', { esm: true })
-      const warnMsg = 'Using esm is deprecated and will be removed in Nuxt 3. Use `useESM` instead.'
-      expect(consola.warn).toBeCalledTimes(1)
-      expect(consola.warn).toBeCalledWith(warnMsg)
     })
   })
 })

packages/generator/package.json

@@ -11,6 +11,7 @@
     "@nuxt/utils": "2.14.12",
     "chalk": "^4.1.0",
     "consola": "^2.15.0",
+    "defu": "^3.2.2",
     "devalue": "^2.0.1",
     "fs-extra": "^9.0.1",
     "html-minifier": "^4.0.0",

packages/generator/src/generator.js

@@ -7,7 +7,7 @@ import defu from 'defu'
 import htmlMinifier from 'html-minifier'
 import { parse } from 'node-html-parser'
 
-import { isFullStatic, flatRoutes, isString, isUrl, promisifyRoute, urlJoin, waitFor } from '@nuxt/utils'
+import { isFullStatic, flatRoutes, isString, isUrl, promisifyRoute, urlJoin, waitFor, requireModule } from '@nuxt/utils'
 
 export default class Generator {
   constructor (nuxt, builder) {
@@ -153,14 +153,14 @@ export default class Generator {
 
   getBuildConfig () {
     try {
-      return require(path.join(this.options.buildDir, 'nuxt/config.json'))
+      return requireModule(path.join(this.options.buildDir, 'nuxt/config.json'))
     } catch (err) {
       return null
     }
   }
 
   getAppRoutes () {
-    return require(path.join(this.options.buildDir, 'routes.json'))
+    return requireModule(path.join(this.options.buildDir, 'routes.json'))
   }
 
   async generateRoutes (routes) {
@@ -382,8 +382,9 @@ export default class Generator {
     let fileName
 
     if (this.options.generate.subFolders) {
-      fileName = path.join(route, path.sep, 'index.html') // /about -> /about/index.html
+      fileName = route === '/404'
-      fileName = fileName === '/404/index.html' ? '/404.html' : fileName // /404 -> /404.html
+        ? path.join(path.sep, '404.html') // /404 -> /404.html
+        : path.join(route, path.sep, 'index.html') // /about -> /about/index.html
     } else {
       const normalizedRoute = route.replace(/\/$/, '')
       fileName = route.length > 1 ? path.join(path.sep, normalizedRoute + '.html') : path.join(path.sep, 'index.html')

packages/generator/test/__utils__/index.js

@@ -1,3 +1,10 @@
+import { resolve } from 'path'
+import env from 'std-env'
+
+const isWin = env.windows
+
+const rootDir = isWin ? 'C:\\nuxt' : '/var/nuxt'
+
 export const createNuxt = () => ({
   ready: jest.fn(),
   callHook: jest.fn(),
@@ -6,11 +13,11 @@ export const createNuxt = () => ({
   },
   options: {
     mode: 'universal',
-    srcDir: '/var/nuxt/src',
+    srcDir: resolve(rootDir, 'src'),
-    buildDir: '/var/nuxt/build',
+    buildDir: resolve(rootDir, 'build'),
-    generate: { dir: '/var/nuxt/generate' },
+    generate: { dir: resolve(rootDir, 'generate') },
     build: { publicPath: '__public' },
-    dir: { static: '/var/nuxt/static' },
+    dir: { static: resolve(rootDir, 'static') },
     render: {}
   }
 })

packages/generator/test/generator.gen.test.js

@@ -1,4 +1,3 @@
-import path from 'path'
 import chalk from 'chalk'
 import consola from 'consola'
 import fsExtra from 'fs-extra'
@@ -7,7 +6,6 @@ import { waitFor } from '@nuxt/utils'
 import Generator from '../src/generator'
 import { createNuxt } from './__utils__'
 
-jest.mock('path')
 jest.mock('chalk', () => ({
   red: jest.fn(str => `red:${str}`),
   yellow: jest.fn(str => `yellow:${str}`),
@@ -17,17 +15,6 @@ jest.mock('fs-extra')
 jest.mock('@nuxt/utils')
 
 describe('generator: generate routes', () => {
-  const sep = path.sep
-
-  beforeAll(() => {
-    path.sep = '[sep]'
-    path.join.mockImplementation((...args) => `join(${args.join(', ')})`)
-  })
-
-  afterAll(() => {
-    path.sep = sep
-  })
-
   beforeEach(() => {
     jest.clearAllMocks()
   })
@@ -147,25 +134,28 @@ grey:bar failed`)
     const nuxt = createNuxt()
     nuxt.options.generate.fallback = 'fallback.html'
     const generator = new Generator(nuxt)
-    path.join.mockClear()
     fsExtra.exists.mockReturnValueOnce(false)
 
     await generator.afterGenerate()
 
-    expect(path.join).toBeCalledTimes(1)
-    expect(path.join).toBeCalledWith(generator.distPath, 'fallback.html')
     expect(fsExtra.exists).toBeCalledTimes(1)
-    expect(fsExtra.exists).toBeCalledWith(`join(${generator.distPath}, fallback.html)`)
+    expect(fsExtra.exists.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/fallback.html',
+      'C:\\nuxt\\generate\\fallback.html'
+    )
     expect(nuxt.server.renderRoute).toBeCalledTimes(1)
     expect(nuxt.server.renderRoute).toBeCalledWith('/', { spa: true })
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`join(${generator.distPath}, fallback.html)`, 'rendered html', 'utf8')
+    expect(fsExtra.writeFile).toBeCalledWith(expect.any(String), 'rendered html', 'utf8')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/fallback.html',
+      'C:\\nuxt\\generate\\fallback.html'
+    )
   })
 
   test('should disable writing fallback if fallback is empty or not string', async () => {
     const nuxt = createNuxt()
     const generator = new Generator(nuxt)
-    path.join.mockClear()
 
     nuxt.options.generate.fallback = ''
     await generator.afterGenerate()
@@ -173,7 +163,6 @@ grey:bar failed`)
     nuxt.options.generate.fallback = jest.fn()
     await generator.afterGenerate()
 
-    expect(path.join).not.toBeCalled()
     expect(fsExtra.exists).not.toBeCalled()
     expect(nuxt.server.renderRoute).not.toBeCalled()
     expect(fsExtra.writeFile).not.toBeCalled()
@@ -183,15 +172,15 @@ grey:bar failed`)
     const nuxt = createNuxt()
     nuxt.options.generate.fallback = 'fallback.html'
     const generator = new Generator(nuxt)
-    path.join.mockClear()
     fsExtra.exists.mockReturnValueOnce(true)
 
     await generator.afterGenerate()
 
-    expect(path.join).toBeCalledTimes(1)
-    expect(path.join).toBeCalledWith(generator.distPath, 'fallback.html')
     expect(fsExtra.exists).toBeCalledTimes(1)
-    expect(fsExtra.exists).toBeCalledWith(`join(${generator.distPath}, fallback.html)`)
+    expect(fsExtra.exists.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/fallback.html',
+      'C:\\nuxt\\generate\\fallback.html'
+    )
     expect(nuxt.server.renderRoute).not.toBeCalled()
     expect(fsExtra.writeFile).not.toBeCalled()
   })
@@ -199,7 +188,6 @@ grey:bar failed`)
   test('should disable writing fallback if fallback is empty or not string', async () => {
     const nuxt = createNuxt()
     const generator = new Generator(nuxt)
-    path.join.mockClear()
 
     nuxt.options.generate.fallback = ''
     await generator.afterGenerate()
@@ -207,7 +195,6 @@ grey:bar failed`)
     nuxt.options.generate.fallback = jest.fn()
     await generator.afterGenerate()
 
-    expect(path.join).not.toBeCalled()
     expect(fsExtra.exists).not.toBeCalled()
     expect(fsExtra.writeFile).not.toBeCalled()
   })

packages/generator/test/generator.init.test.js

@@ -1,4 +1,3 @@
-import path from 'path'
 import consola from 'consola'
 import fsExtra from 'fs-extra'
 import { flatRoutes, isString, isUrl, promisifyRoute } from '@nuxt/utils'
@@ -6,15 +5,12 @@ import { flatRoutes, isString, isUrl, promisifyRoute } from '@nuxt/utils'
 import Generator from '../src/generator'
 import { createNuxt, hookCalls } from './__utils__'
 
-jest.mock('path')
 jest.mock('fs-extra')
 jest.mock('@nuxt/utils')
 
 describe('generator: initialize', () => {
   beforeAll(() => {
     isString.mockImplementation(str => typeof str === 'string')
-    path.join.mockImplementation((...args) => `join(${args.join(', ')})`)
-    path.resolve.mockImplementation((...args) => `resolve(${args.join(', ')})`)
   })
 
   beforeEach(() => {
@@ -34,10 +30,22 @@ describe('generator: initialize', () => {
     expect(generator.nuxt).toBe(nuxt)
     expect(generator.options).toBe(nuxt.options)
     expect(generator.builder).toBe(builder)
-    expect(generator.staticRoutes).toEqual('resolve(/var/nuxt/src, /var/nuxt/static)')
+    expect(generator.staticRoutes).toBePath(
-    expect(generator.srcBuiltPath).toBe('resolve(/var/nuxt/build, dist, client)')
+      '/var/nuxt/static',
-    expect(generator.distPath).toBe('/var/nuxt/generate')
+      'C:\\nuxt\\static'
-    expect(generator.distNuxtPath).toBe('join(/var/nuxt/generate, )')
+    )
+    expect(generator.srcBuiltPath).toBePath(
+      '/var/nuxt/build/dist/client',
+      'C:\\nuxt\\build\\dist\\client'
+    )
+    expect(generator.distPath).toBePath(
+      '/var/nuxt/generate',
+      'C:\\nuxt\\generate'
+    )
+    expect(generator.distNuxtPath).toBePath(
+      '/var/nuxt/generate',
+      'C:\\nuxt\\generate'
+    )
   })
 
   test('should append publicPath to distPath if publicPath is not url', () => {
@@ -50,7 +58,10 @@ describe('generator: initialize', () => {
     const builder = jest.fn()
     const generator = new Generator(nuxt, builder)
 
-    expect(generator.distNuxtPath).toBe('join(/var/nuxt/generate, __public)')
+    expect(generator.distNuxtPath).toBePath(
+      '/var/nuxt/generate/__public',
+      'C:\\nuxt\\generate\\__public'
+    )
   })
 
   test('should initiate with build and init by default', async () => {
@@ -172,8 +183,6 @@ describe('generator: initialize', () => {
     const nuxt = createNuxt()
     nuxt.options.generate.fallback = 'fallback.html'
     const generator = new Generator(nuxt)
-    path.join.mockClear()
-    path.resolve.mockClear()
     fsExtra.exists.mockReturnValueOnce(false)
 
     await generator.initDist()
@@ -185,10 +194,11 @@ describe('generator: initialize', () => {
     expect(fsExtra.exists).toBeCalledWith(generator.staticRoutes)
     expect(fsExtra.copy).toBeCalledTimes(1)
     expect(fsExtra.copy).toBeCalledWith(generator.srcBuiltPath, generator.distNuxtPath)
-    expect(path.resolve).toBeCalledTimes(1)
-    expect(path.resolve).toBeCalledWith(generator.distPath, '.nojekyll')
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`resolve(${generator.distPath}, .nojekyll)`, '')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/.nojekyll',
+      'C:\\nuxt\\generate\\.nojekyll'
+    )
     expect(hookCalls(nuxt, 'generate:distCopied')[0][0]).toMatchObject(generator)
   })
 

packages/generator/test/generator.route.test.js

@@ -1,4 +1,3 @@
-import path from 'path'
 import consola from 'consola'
 import fsExtra from 'fs-extra'
 import htmlMinifier from 'html-minifier'
@@ -6,24 +5,11 @@ import htmlMinifier from 'html-minifier'
 import Generator from '../src/generator'
 import { createNuxt, hookCalls } from './__utils__'
 
-jest.mock('path')
 jest.mock('fs-extra')
 jest.mock('html-minifier')
 jest.mock('@nuxt/utils')
 
 describe('generator: generate route', () => {
-  const sep = path.sep
-
-  beforeAll(() => {
-    path.sep = '[sep]'
-    path.join.mockImplementation((...args) => `join(${args.join(', ')})`)
-    path.dirname.mockImplementation((...args) => `dirname(${args.join(', ')})`)
-  })
-
-  afterAll(() => {
-    path.sep = sep
-  })
-
   beforeEach(() => {
     jest.clearAllMocks()
   })
@@ -34,7 +20,6 @@ describe('generator: generate route', () => {
     nuxt.options.generate.minify = undefined
     nuxt.options.generate.subFolders = false
     const generator = new Generator(nuxt)
-    path.join.mockClear()
 
     const route = '/foo/'
     const payload = {}
@@ -44,26 +29,38 @@ describe('generator: generate route', () => {
 
     expect(nuxt.server.renderRoute).toBeCalledTimes(1)
     expect(nuxt.server.renderRoute).toBeCalledWith(route, { payload })
-    expect(path.join).toBeCalledTimes(2)
-    expect(path.join).nthCalledWith(1, '[sep]', '/foo.html')
-    expect(path.join).nthCalledWith(2, generator.distPath, 'join([sep], /foo.html)')
 
-    expect(hookCalls(nuxt, 'generate:page')[0][0]).toMatchObject({
+    const genernatePageHookCall = hookCalls(nuxt, 'generate:page')[0][0]
+    expect(genernatePageHookCall).toMatchObject({
       route,
-      html: 'rendered html',
+      html: 'rendered html'
-      path: `join(${generator.distPath}, join([sep], /foo.html))`
     })
+    expect(genernatePageHookCall.path).toBePath(
+      '/var/nuxt/generate/foo.html',
+      'C:\\nuxt\\generate\\foo.html'
+    )
 
-    expect(hookCalls(nuxt, 'generate:routeCreated')[0][0]).toMatchObject({
+    const genernateRouteCreatedHookCall = hookCalls(nuxt, 'generate:routeCreated')[0][0]
+    expect(genernateRouteCreatedHookCall).toMatchObject({
       route,
-      errors: [],
+      errors: []
-      path: `join(${generator.distPath}, join([sep], /foo.html))`
     })
+    expect(genernateRouteCreatedHookCall.path).toBePath(
+      '/var/nuxt/generate/foo.html',
+      'C:\\nuxt\\generate\\foo.html'
+    )
 
     expect(fsExtra.mkdirp).toBeCalledTimes(1)
-    expect(fsExtra.mkdirp).toBeCalledWith(`dirname(join(${generator.distPath}, join([sep], /foo.html)))`)
+    expect(fsExtra.mkdirp.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate',
+      'C:\\nuxt\\generate'
+    )
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`join(${generator.distPath}, join([sep], /foo.html))`, 'rendered html', 'utf8')
+    expect(fsExtra.writeFile).toBeCalledWith(expect.any(String), 'rendered html', 'utf8')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/foo.html',
+      'C:\\nuxt\\generate\\foo.html'
+    )
     expect(returned).toEqual(true)
   })
 
@@ -158,7 +155,11 @@ describe('generator: generate route', () => {
     expect(htmlMinifier.minify).toBeCalledTimes(1)
     expect(htmlMinifier.minify).toBeCalledWith('rendered html', { value: 'test-minify' })
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`join(${generator.distPath}, join([sep], /foo.html))`, 'minified rendered html', 'utf8')
+    expect(fsExtra.writeFile).toBeCalledWith(expect.any(String), 'minified rendered html', 'utf8')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/foo.html',
+      'C:\\nuxt\\generate\\foo.html'
+    )
     expect(returned).toEqual(true)
   })
 
@@ -191,17 +192,17 @@ describe('generator: generate route', () => {
     nuxt.options.build.html = { minify: false }
     nuxt.options.generate.subFolders = true
     const generator = new Generator(nuxt)
-    path.join.mockClear()
 
     const route = '/foo'
 
     const returned = await generator.generateRoute({ route })
 
-    expect(path.join).toBeCalledTimes(2)
-    expect(path.join).nthCalledWith(1, route, '[sep]', 'index.html')
-    expect(path.join).nthCalledWith(2, generator.distPath, 'join(/foo, [sep], index.html)')
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`join(${generator.distPath}, join(/foo, [sep], index.html))`, 'rendered html', 'utf8')
+    expect(fsExtra.writeFile).toBeCalledWith(expect.any(String), 'rendered html', 'utf8')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/foo/index.html',
+      'C:\\nuxt\\generate\\foo\\index.html'
+    )
     expect(returned).toEqual(true)
   })
 
@@ -210,18 +211,17 @@ describe('generator: generate route', () => {
     nuxt.options.build.html = { minify: false }
     nuxt.options.generate.subFolders = true
     const generator = new Generator(nuxt)
-    path.join.mockClear()
-    path.join.mockReturnValueOnce('/404/index.html')
 
     const route = '/404'
 
     const returned = await generator.generateRoute({ route })
 
-    expect(path.join).toBeCalledTimes(2)
-    expect(path.join).nthCalledWith(1, route, '[sep]', 'index.html')
-    expect(path.join).nthCalledWith(2, generator.distPath, '/404.html')
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`join(${generator.distPath}, /404.html)`, 'rendered html', 'utf8')
+    expect(fsExtra.writeFile).toBeCalledWith(expect.any(String), 'rendered html', 'utf8')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/404.html',
+      'C:\\nuxt\\generate\\404.html'
+    )
     expect(returned).toEqual(true)
   })
 
@@ -229,17 +229,17 @@ describe('generator: generate route', () => {
     const nuxt = createNuxt()
     nuxt.options.build.html = { minify: false }
     const generator = new Generator(nuxt)
-    path.join.mockClear()
 
     const route = ''
 
     const returned = await generator.generateRoute({ route })
 
-    expect(path.join).toBeCalledTimes(2)
-    expect(path.join).nthCalledWith(1, '[sep]', 'index.html')
-    expect(path.join).nthCalledWith(2, generator.distPath, 'join([sep], index.html)')
     expect(fsExtra.writeFile).toBeCalledTimes(1)
-    expect(fsExtra.writeFile).toBeCalledWith(`join(${generator.distPath}, join([sep], index.html))`, 'rendered html', 'utf8')
+    expect(fsExtra.writeFile).toBeCalledWith(expect.any(String), 'rendered html', 'utf8')
+    expect(fsExtra.writeFile.mock.calls[0][0]).toBePath(
+      '/var/nuxt/generate/index.html',
+      'C:\\nuxt\\generate\\index.html'
+    )
     expect(returned).toEqual(true)
   })
 })

packages/server/package.js

@@ -1,6 +1,4 @@
 export default {
   build: true,
-  rollup: {
   externals: ['jsdom']
-  }
 }

packages/server/package.json

@@ -8,11 +8,9 @@
     "dist"
   ],
   "dependencies": {
-    "@nuxt/config": "2.14.12",
     "@nuxt/utils": "2.14.12",
     "@nuxt/vue-renderer": "2.14.12",
     "@nuxtjs/youch": "^4.2.3",
-    "chalk": "^4.1.0",
     "compression": "^1.7.4",
     "connect": "^3.7.0",
     "consola": "^2.15.0",

packages/server/src/server.js

@@ -4,8 +4,9 @@ import launchMiddleware from 'launch-editor-middleware'
 import serveStatic from 'serve-static'
 import servePlaceholder from 'serve-placeholder'
 import connect from 'connect'
+import compression from 'compression'
 import { determineGlobals, isUrl, urlJoin } from '@nuxt/utils'
-
+import { VueRenderer } from '@nuxt/vue-renderer'
 import ServerContext from './context'
 import renderAndGetWindow from './jsdom'
 import nuxtMiddleware from './middleware/nuxt'
@@ -53,8 +54,6 @@ export default class Server {
     await this.nuxt.callHook('render:before', this, this.options.render)
 
     // Initialize vue-renderer
-    const { VueRenderer } = await import('@nuxt/vue-renderer')
-
     this.serverContext = new ServerContext(this)
     this.renderer = new VueRenderer(this.serverContext)
     await this.renderer.ready()
@@ -77,7 +76,6 @@ export default class Server {
       const { compressor } = this.options.render
       if (typeof compressor === 'object') {
         // If only setting for `compression` are provided, require the module and insert
-        const compression = this.nuxt.resolver.requireModule('compression')
         this.useMiddleware(compression(compressor))
       } else if (compressor) {
         // Else, require own compression middleware if compressor is actually truthy

packages/server/test/server.test.js

@@ -1,4 +1,5 @@
 import path from 'path'
+import compression from 'compression'
 import connect from 'connect'
 import consola from 'consola'
 import serveStatic from 'serve-static'
@@ -15,6 +16,7 @@ import nuxtMiddleware from '../src/middleware/nuxt'
 import errorMiddleware from '../src/middleware/error'
 import createTimingMiddleware from '../src/middleware/timing'
 
+jest.mock('compression')
 jest.mock('connect')
 jest.mock('serve-static')
 jest.mock('serve-placeholder')
@@ -229,12 +231,11 @@ describe('server: server', () => {
 
     server.useMiddleware.mockClear()
     nuxt.options.render.compressor = { id: 'test-render-compressor' }
-    nuxt.resolver.requireModule.mockImplementationOnce(name => jest.fn(options => ({
+    compression.mockImplementationOnce(options => ({
-      name,
+      name: 'compression',
       ...options
-    })))
+    }))
     await server.setupMiddleware()
-    expect(nuxt.resolver.requireModule).nthCalledWith(1, 'compression')
     expect(server.useMiddleware).nthCalledWith(1, {
       id: 'test-render-compressor',
       name: 'compression'

packages/utils/package.json

@@ -10,8 +10,10 @@
   "dependencies": {
     "@nuxt/ufo": "^0.5.2",
     "consola": "^2.15.0",
+    "create-require": "^1.1.1",
     "fs-extra": "^9.0.1",
     "hash-sum": "^2.0.0",
+    "lodash": "^4.17.20",
     "proper-lockfile": "^4.1.1",
     "semver": "^7.3.4",
     "serialize-javascript": "^5.0.1",

packages/utils/src/cjs.js

@@ -1,4 +1,7 @@
 import { join } from 'path'
+import createRequire from 'create-require'
+
+const _require = createRequire()
 
 export function isHMRCompatible (id) {
   return !/[/\\]mongoose[/\\/]/.test(id)
@@ -16,7 +19,7 @@ export function clearRequireCache (id) {
   const entry = getRequireCacheItem(id)
 
   if (!entry) {
-    delete require.cache[id]
+    delete _require.cache[id]
     return
   }
 
@@ -25,7 +28,7 @@ export function clearRequireCache (id) {
   }
 
   // Needs to be cleared before children, to protect against circular deps (#7966)
-  delete require.cache[id]
+  delete _require.cache[id]
 
   for (const child of entry.children) {
     clearRequireCache(child.id)
@@ -55,18 +58,34 @@ export function scanRequireTree (id, files = new Set()) {
 
 export function getRequireCacheItem (id) {
   try {
-    return require.cache[id]
+    return _require.cache[id]
   } catch (e) {
   }
 }
 
-export function tryRequire (id) {
+export function resolveModule (id, paths) {
-  try {
+  if (typeof paths === 'string') {
-    return require(id)
+    paths = [paths]
-  } catch (e) {
   }
+  return _require.resolve(id, [
+    process.cwd(),
+    ...(paths || []),
+    ...(global.__NUXT_PATHS__ || [])
+  ])
 }
 
-export function getPKG (id) {
+export function requireModule (id, paths) {
-  return tryRequire(join(id, 'package.json'))
+  return _require(resolveModule(id, paths))
+}
+
+export function tryRequire (id, paths) {
+  try { return requireModule(id, paths) } catch (e) { }
+}
+
+export function tryResolve (id, paths) {
+  try { return resolveModule(id, paths) } catch (e) { }
+}
+
+export function getPKG (id, paths) {
+  return tryRequire(join(id, 'package.json'), paths)
 }

packages/utils/src/modern.js

@@ -1,4 +1,5 @@
 import UAParser from 'ua-parser-js'
+import semver from 'semver'
 
 export const ModernBrowsers = {
   Edge: '16',
@@ -14,7 +15,6 @@ export const ModernBrowsers = {
   'Mobile Safari': '10.3'
 }
 
-let semver
 let __modernBrowsers
 
 const getModernBrowsers = () => {
@@ -34,9 +34,6 @@ export const isModernBrowser = (ua) => {
   if (!ua) {
     return false
   }
-  if (!semver) {
-    semver = require('semver')
-  }
   const { browser } = UAParser(ua)
   const browserVersion = semver.coerce(browser.version)
   if (!browserVersion) {

packages/utils/src/resolve.js

@@ -1,6 +1,6 @@
 import path from 'path'
 import consola from 'consola'
-import escapeRegExp from 'lodash/escapeRegExp'
+import { escapeRegExp } from 'lodash'
 
 export const startsWithAlias = aliasArray => str => aliasArray.some(c => str.startsWith(c))
 
@@ -105,5 +105,5 @@ export function isIndexFileAndFolder (pluginFiles) {
 }
 
 export const getMainModule = () => {
-  return require.main || (module && module.main) || module
+  return (require && require.main) || (module && module.main) || module
 }

packages/utils/src/route.js

@@ -1,5 +1,5 @@
 import path from 'path'
-import get from 'lodash/get'
+import { get } from 'lodash'
 import consola from 'consola'
 import { normalizeURL, withTrailingSlash, withoutTrailingSlash } from '@nuxt/ufo'
 import { r } from './resolve'

packages/vue-app/package.js

@@ -1,3 +1,16 @@
 export default {
-  build: true
+  build: true,
+  ignoreUnused: [
+    // used in vue-app
+    '@nuxt/ufo',
+    'node-fetch',
+    'unfetch',
+    'vue',
+    'vue-client-only',
+    'vue-meta',
+    'vue-no-ssr',
+    'vue-router',
+    'vue-template-compiler',
+    'vuex'
+  ]
 }

packages/vue-renderer/package.json

@@ -13,6 +13,7 @@
     "@nuxt/utils": "2.14.12",
     "consola": "^2.15.0",
     "fs-extra": "^9.0.1",
+    "lodash": "^4.17.20",
     "lru-cache": "^5.1.1",
     "vue": "^2.6.12",
     "vue-meta": "^2.4.0",

packages/vue-renderer/src/renderer.js

@@ -1,7 +1,7 @@
 import path from 'path'
 import fs from 'fs-extra'
 import consola from 'consola'
-import template from 'lodash/template'
+import { template } from 'lodash'
 import { TARGETS, isModernRequest, waitFor } from '@nuxt/utils'
 import { normalizeURL } from '@nuxt/ufo'
 

packages/vue-renderer/src/renderers/spa.js

@@ -1,5 +1,5 @@
 import { extname } from 'path'
-import cloneDeep from 'lodash/cloneDeep'
+import { cloneDeep } from 'lodash'
 import VueMeta from 'vue-meta'
 import { createRenderer } from 'vue-server-renderer'
 import LRU from 'lru-cache'

packages/webpack/package.js

@@ -1,3 +1,18 @@
 export default {
-  build: true
+  build: true,
+  ignoreUnused: [
+    '@nuxt/babel-preset-app',
+    'babel-loader',
+    'cache-loader',
+    'caniuse-lite',
+    'css-loader',
+    'cssnano',
+    'eventsource-polyfill',
+    'file-loader',
+    'postcss-loader',
+    'postcss-preset-env',
+    'postcss-url',
+    'style-resources-loader',
+    'url-loader'
+  ]
 }

packages/webpack/package.json

@@ -8,16 +8,13 @@
     "dist"
   ],
   "dependencies": {
-    "@babel/core": "^7.12.10",
     "@nuxt/babel-preset-app": "2.14.12",
     "@nuxt/friendly-errors-webpack-plugin": "^2.5.0",
     "@nuxt/utils": "2.14.12",
     "babel-loader": "^8.2.2",
     "cache-loader": "^4.1.0",
-    "caniuse-lite": "^1.0.30001170",
+    "caniuse-lite": "^1.0.30001168",
-    "chalk": "^4.1.0",
     "consola": "^2.15.0",
-    "create-require": "^1.1.1",
     "css-loader": "^4.3.0",
     "cssnano": "^4.1.10",
     "eventsource-polyfill": "^0.9.6",
@@ -27,9 +24,11 @@
     "hard-source-webpack-plugin": "^0.13.1",
     "hash-sum": "^2.0.0",
     "html-webpack-plugin": "^4.5.0",
+    "lodash": "^4.17.20",
     "memory-fs": "^0.5.0",
     "optimize-css-assets-webpack-plugin": "^5.0.4",
     "pify": "^5.0.0",
+    "pnp-webpack-plugin": "^1.6.4",
     "postcss": "^7.0.32",
     "postcss-import": "^12.0.1",
     "postcss-import-resolver": "^2.0.0",

packages/webpack/src/builder.js

@@ -6,7 +6,7 @@ import webpackDevMiddleware from 'webpack-dev-middleware'
 import webpackHotMiddleware from 'webpack-hot-middleware'
 import consola from 'consola'
 
-import { TARGETS, parallel, sequence, wrapArray, isModernRequest } from '@nuxt/utils'
+import { TARGETS, parallel, sequence, tryResolve, wrapArray, isModernRequest } from '@nuxt/utils'
 import AsyncMFS from './utils/async-mfs'
 
 import * as WebpackConfigs from './config'
@@ -92,7 +92,7 @@ export class WebpackBundler {
     // Warm up perfLoader before build
     if (options.build.parallel) {
       consola.info('Warming up worker pools')
-      PerfLoader.warmupAll({ dev: options.dev })
+      PerfLoader.warmupAll({ dev: options.dev, resolveModule: id => tryResolve(id, __filename) || id })
       consola.success('Worker pools ready')
     }
 

packages/webpack/src/config/base.js

@@ -1,19 +1,18 @@
 import path from 'path'
 import consola from 'consola'
 import TimeFixPlugin from 'time-fix-plugin'
-import cloneDeep from 'lodash/cloneDeep'
+import { escapeRegExp, cloneDeep } from 'lodash'
-import escapeRegExp from 'lodash/escapeRegExp'
 import VueLoader from 'vue-loader'
 import ExtractCssChunksPlugin from 'extract-css-chunks-webpack-plugin'
+import * as PnpWebpackPlugin from 'pnp-webpack-plugin'
 import HardSourcePlugin from 'hard-source-webpack-plugin'
 import TerserWebpackPlugin from 'terser-webpack-plugin'
 import WebpackBar from 'webpackbar'
 import env from 'std-env'
 import semver from 'semver'
 
-import { TARGETS, isUrl, urlJoin, getPKG } from '@nuxt/utils'
+import { TARGETS, isUrl, urlJoin, getPKG, tryResolve, requireModule } from '@nuxt/utils'
 
-import createRequire from 'create-require'
 import PerfLoader from '../utils/perf-loader'
 import StyleLoader from '../utils/style-loader'
 import WarningIgnorePlugin from '../plugins/warning-ignore'
@@ -23,6 +22,7 @@ export default class WebpackBaseConfig {
   constructor (builder) {
     this.builder = builder
     this.buildContext = builder.buildContext
+    this.resolveModule = id => tryResolve(id) || id
   }
 
   get colors () {
@@ -121,7 +121,7 @@ export default class WebpackBaseConfig {
     let corejsVersion = corejs
     if (corejsVersion === 'auto') {
       try {
-        corejsVersion = Number.parseInt(createRequire(rootDir)('core-js/package.json').version.split('.')[0])
+        corejsVersion = Number.parseInt(requireModule('core-js/package.json', rootDir).version.split('.')[0])
       } catch (_err) {
         corejsVersion = 2
       }
@@ -134,7 +134,7 @@ export default class WebpackBaseConfig {
       corejsVersion = 2
     }
 
-    const defaultPreset = [require.resolve('@nuxt/babel-preset-app'), {
+    const defaultPreset = [this.resolveModule('@nuxt/babel-preset-app'), {
       corejs: {
         version: corejsVersion
       }
@@ -229,12 +229,20 @@ export default class WebpackBaseConfig {
       resolve: {
         extensions: ['.wasm', '.mjs', '.js', '.json', '.vue', '.jsx'],
         alias: this.alias(),
-        modules: webpackModulesDir
+        modules: webpackModulesDir,
+        plugins: [
+          PnpWebpackPlugin,
+          PnpWebpackPlugin.moduleLoader(this.buildContext.options.rootDir),
+          PnpWebpackPlugin.moduleLoader(__dirname)
+        ]
       },
       resolveLoader: {
         modules: [
           path.resolve(__dirname, '../node_modules'),
           ...webpackModulesDir
+        ],
+        plugins: [
+          PnpWebpackPlugin.moduleLoader(module)
         ]
       }
     }
@@ -271,26 +279,26 @@ export default class WebpackBaseConfig {
   alias () {
     return {
       ...this.buildContext.options.alias,
-      'vue-meta': require.resolve(`vue-meta${this.isServer ? '' : '/dist/vue-meta.esm.browser.js'}`)
+      'vue-meta': this.resolveModule(`vue-meta${this.isServer ? '' : '/dist/vue-meta.esm.browser.js'}`)
     }
   }
 
   rules () {
-    const perfLoader = new PerfLoader(this.name, this.buildContext)
+    const perfLoader = new PerfLoader(this.name, this.buildContext, { resolveModule: this.resolveModule })
     const styleLoader = new StyleLoader(
       this.buildContext,
-      { isServer: this.isServer, perfLoader }
+      { isServer: this.isServer, perfLoader, resolveModule: this.resolveModule }
     )
 
     const babelLoader = {
-      loader: require.resolve('babel-loader'),
+      loader: this.resolveModule('babel-loader'),
       options: this.getBabelOptions()
     }
 
     return [
       {
         test: /\.vue$/i,
-        loader: 'vue-loader',
+        loader: this.resolveModule('vue-loader'),
         options: this.loaders.vue
       },
       {
@@ -299,15 +307,15 @@ export default class WebpackBaseConfig {
           {
             resourceQuery: /^\?vue/i,
             use: [{
-              loader: 'pug-plain-loader',
+              loader: this.resolveModule('pug-plain-loader'),
               options: this.loaders.pugPlain
             }]
           },
           {
             use: [
-              'raw-loader',
+              this.resolveModule('raw-loader'),
               {
-                loader: 'pug-plain-loader',
+                loader: this.resolveModule('pug-plain-loader'),
                 options: this.loaders.pugPlain
               }
             ]
@@ -340,35 +348,35 @@ export default class WebpackBaseConfig {
       {
         test: /\.less$/i,
         oneOf: styleLoader.apply('less', {
-          loader: 'less-loader',
+          loader: this.resolveModule('less-loader'),
           options: this.loaders.less
         })
       },
       {
         test: /\.sass$/i,
         oneOf: styleLoader.apply('sass', {
-          loader: 'sass-loader',
+          loader: this.resolveModule('sass-loader'),
           options: this.loaders.sass
         })
       },
       {
         test: /\.scss$/i,
         oneOf: styleLoader.apply('scss', {
-          loader: 'sass-loader',
+          loader: this.resolveModule('sass-loader'),
           options: this.loaders.scss
         })
       },
       {
         test: /\.styl(us)?$/i,
         oneOf: styleLoader.apply('stylus', {
-          loader: 'stylus-loader',
+          loader: this.resolveModule('stylus-loader'),
           options: this.loaders.stylus
         })
       },
       {
         test: /\.(png|jpe?g|gif|svg|webp|avif)$/i,
         use: [{
-          loader: 'url-loader',
+          loader: this.resolveModule('url-loader'),
           options: Object.assign(
             this.loaders.imgUrl,
             { name: this.getFileName('img') }
@@ -378,7 +386,7 @@ export default class WebpackBaseConfig {
       {
         test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/i,
         use: [{
-          loader: 'url-loader',
+          loader: this.resolveModule('url-loader'),
           options: Object.assign(
             this.loaders.fontUrl,
             { name: this.getFileName('font') }
@@ -388,7 +396,7 @@ export default class WebpackBaseConfig {
       {
         test: /\.(webm|mp4|ogv)$/i,
         use: [{
-          loader: 'file-loader',
+          loader: this.resolveModule('file-loader'),
           options: Object.assign(
             this.loaders.file,
             { name: this.getFileName('video') }

packages/webpack/src/config/client.js

@@ -199,9 +199,9 @@ export default class WebpackClientConfig extends WebpackBaseConfig {
     if (this.dev) {
       config.entry.app.unshift(
         // https://github.com/webpack-contrib/webpack-hot-middleware/issues/53#issuecomment-162823945
-        'eventsource-polyfill',
+        this.resolveModule('eventsource-polyfill'),
         // https://github.com/glenjamin/webpack-hot-middleware#config
-        `webpack-hot-middleware/client?${hotMiddlewareClientOptionsStr}`
+        `${this.resolveModule('webpack-hot-middleware/client')}?${hotMiddlewareClientOptionsStr}`
       )
     }
 

packages/webpack/src/plugins/vue/client.js

@@ -4,7 +4,7 @@
  */
 
 import hash from 'hash-sum'
-import uniq from 'lodash/uniq'
+import { uniq } from 'lodash'
 
 import { isJS, isCSS } from './util'
 

packages/webpack/src/utils/perf-loader.js

@@ -6,10 +6,11 @@ import { warmup } from 'thread-loader'
 // https://github.com/webpack-contrib/cache-loader
 
 export default class PerfLoader {
-  constructor (name, buildContext) {
+  constructor (name, buildContext, { resolveModule }) {
     this.name = name
     this.buildContext = buildContext
     this.workerPools = PerfLoader.defaultPools({ dev: buildContext.options.dev })
+    this.resolveModule = resolveModule
     return new Proxy(this, {
       get (target, name) {
         return target[name] ? target[name] : target.use.bind(target, name)
@@ -25,13 +26,13 @@ export default class PerfLoader {
     }
   }
 
-  static warmupAll ({ dev }) {
+  static warmupAll ({ dev, resolveModule }) {
     const pools = PerfLoader.defaultPools({ dev })
     PerfLoader.warmup(pools.js, [
-      require.resolve('babel-loader'),
+      resolveModule('babel-loader'),
-      require.resolve('@babel/preset-env')
+      resolveModule('@babel/preset-env')
     ])
-    PerfLoader.warmup(pools.css, ['css-loader'])
+    PerfLoader.warmup(pools.css, [resolveModule('css-loader')])
   }
 
   static warmup (...args) {
@@ -43,7 +44,7 @@ export default class PerfLoader {
 
     if (this.buildContext.buildOptions.cache) {
       loaders.push({
-        loader: 'cache-loader',
+        loader: this.resolveModule('cache-loader'),
         options: {
           cacheDirectory: path.resolve(`node_modules/.cache/cache-loader/${this.name}`)
         }
@@ -54,7 +55,7 @@ export default class PerfLoader {
       const pool = this.workerPools[poolName]
       if (pool) {
         loaders.push({
-          loader: 'thread-loader',
+          loader: this.resolveModule('thread-loader'),
           options: pool
         })
       }

packages/webpack/src/utils/postcss.js

@@ -1,9 +1,7 @@
 import fs from 'fs'
 import path from 'path'
 import consola from 'consola'
-import defaults from 'lodash/defaults'
+import { defaults, merge, cloneDeep } from 'lodash'
-import merge from 'lodash/merge'
-import cloneDeep from 'lodash/cloneDeep'
 import createResolver from 'postcss-import-resolver'
 
 import { isPureObject } from '@nuxt/utils'

packages/webpack/src/utils/style-loader.js

@@ -6,10 +6,11 @@ import { wrapArray } from '@nuxt/utils'
 import PostcssConfig from './postcss'
 
 export default class StyleLoader {
-  constructor (buildContext, { isServer, perfLoader }) {
+  constructor (buildContext, { isServer, perfLoader, resolveModule }) {
     this.buildContext = buildContext
     this.isServer = isServer
     this.perfLoader = perfLoader
+    this.resolveModule = resolveModule
 
     if (buildContext.options.build.postcss) {
       this.postcssConfig = new PostcssConfig(buildContext)
@@ -40,7 +41,7 @@ export default class StyleLoader {
     const patterns = wrapArray(extResource).map(p => path.resolve(rootDir, p))
 
     return {
-      loader: 'style-resources-loader',
+      loader: this.resolveModule('style-resources-loader'),
       options: Object.assign(
         { patterns },
         styleResources.options || {}
@@ -62,13 +63,13 @@ export default class StyleLoader {
     }
 
     return {
-      loader: 'postcss-loader',
+      loader: this.resolveModule('postcss-loader'),
       options: Object.assign({ sourceMap: this.buildContext.buildOptions.cssSourceMap }, config)
     }
   }
 
   css (options) {
-    const cssLoader = { loader: 'css-loader', options }
+    const cssLoader = { loader: this.resolveModule('css-loader'), options }
 
     if (this.exportOnlyLocals) {
       options.modules = {
@@ -102,7 +103,7 @@ export default class StyleLoader {
 
   styleLoader () {
     return this.extract() || {
-      loader: 'vue-style-loader',
+      loader: this.resolveModule('vue-style-loader'),
       options: this.buildContext.buildOptions.loaders.vueStyle
     }
   }

scripts/changelog.js

@@ -1,8 +1,6 @@
 import consola from 'consola'
 import execa from 'execa'
-import groupBy from 'lodash/groupBy'
+import { uniq, sortBy, groupBy } from 'lodash'
-import sortBy from 'lodash/sortBy'
-import uniq from 'lodash/uniq'
 import { writeFile } from 'fs-extra'
 
 const types = {

scripts/dev.js

@@ -1,4 +1,3 @@
-#!/usr/bin/env node -r esm
 import path from 'path'
 import fs from 'fs-extra'
 import consola from 'consola'
@@ -11,7 +10,7 @@ const useCjs = [
 
 const stub = {
   es: 'export * from \'../src/index\'',
-  cjs: `const _require = typeof jest === 'undefined' ? require('esm')(module) : require
+  cjs: `const _require = typeof jest === 'undefined' ? require('jiti')(__dirname) : require
   global.__NUXT_DEV__ = true
   module.exports = _require('../src/index')
 `

scripts/link.js

@@ -1,8 +1,11 @@
-const path = require('path')
+import path from 'path'
-const consola = require('consola')
+import consola from 'consola'
-const execa = require('execa')
+import execa from 'execa'
-const fs = require('fs-extra')
+import fs from 'fs-extra'
-const glob = require('pify')(require('glob'))
+import _glob from 'glob'
+import pify from 'pify'
+
+const glob = pify(_glob) // TODO: use globby
 
 async function main () {
   const packageDirs = await glob('+(packages|distributions)/*')

scripts/package

@@ -1,5 +1,3 @@
-#!/usr/bin/env node -r esm
-
 import consola from 'consola'
 
 import Package from './package.js'

scripts/package.js

@@ -9,6 +9,7 @@ import pify from 'pify'
 import sortPackageJson from 'sort-package-json'
 
 import rollupConfig from './rollup.config'
+import { builtins } from './builtins'
 
 const DEFAULTS = {
   rootDir: process.cwd(),
@@ -185,11 +186,22 @@ export default class Package {
   }
 
   async build (_watch = false) {
+    // Externals
+    const externals = [
+      // Dependencies that will be installed alongise with the nuxt package
+      ...Object.keys(this.pkg.dependencies || {}),
+      // Builtin node modules
+      ...builtins,
+      // Custom externals
+      ...(this.options.externals || [])
+    ]
+
     // Prepare rollup config
     const config = {
       rootDir: this.options.rootDir,
       alias: {},
       replace: {},
+      externals,
       ...this.options.rollup
     }
 
@@ -250,27 +262,30 @@ export default class Package {
       try {
         const bundle = await rollup(_rollupConfig)
         await remove(_rollupConfig.output.dir)
-        await bundle.write(_rollupConfig.output)
+        const result = await bundle.write(_rollupConfig.output)
 
         this.logger.success('Bundle built')
         await this.callHook('build:done', { bundle })
 
         // Analyze bundle imports against pkg
-        // if (this.pkg.dependencies) {
+        const dependencies = Object.keys(this.pkg.dependencies || {})
-        //   const dependencies = {}
+        const imports = [].concat(...result.output.map(o => o.imports))
-        //   for (const dep in this.pkg.dependencies) {
+
-        //     dependencies[dep] = this.pkg.dependencies[dep]
+        const missingDependencies = imports
-        //   }
+          .filter(i => !i.endsWith('.js')) // dynamic imports
-        //   for (const imp of bundle.imports) {
+          .filter(i => !dependencies.includes(i) && !externals.find(e => i.startsWith(e)))
-        //     delete dependencies[imp]
+        if (missingDependencies.length) {
-        //   }
+          throw new Error(`Missing dependencies in ${this.pkg.name}: ` + missingDependencies.join(', '))
-        //   for (const dep in dependencies) {
+        }
-        //     this.logger.warn(`Unused dependency ${dep}@${dependencies[dep]}`)
+        const ignoreUnused = this.options.ignoreUnused || []
-        //   }
+        const unusedDependencies = dependencies.filter(d =>
-        // }
+          !imports.find(i => i.startsWith(d)) && !ignoreUnused.includes(d)
+        )
+        if (unusedDependencies.length) {
+          throw new Error(`Unused dependencies in ${this.pkg.name}: ` + unusedDependencies.join(', '))
+        }
       } catch (err) {
         this.formatError(err)
-        this.logger.error(err)
         throw err
       }
     }
@@ -282,7 +297,7 @@ export default class Package {
       const { file, column, line } = error.loc
       loc = `${file}:${line}:${column}`
     }
-    error.message = `[${error.code}] ${error.message}\nat ${loc}`
+    error.message = `[${error.code || ''}] ${error.message}\nat ${loc}`
     return error
   }
 

scripts/rollup.config.js

@@ -4,11 +4,9 @@ import jsonPlugin from '@rollup/plugin-json'
 import commonjsPlugin from '@rollup/plugin-commonjs'
 import replacePlugin from '@rollup/plugin-replace'
 import aliasPlugin from '@rollup/plugin-alias'
-import nodeResolvePlugin from '@rollup/plugin-node-resolve'
+// import nodeResolvePlugin from '@rollup/plugin-node-resolve'
 import licensePlugin from 'rollup-plugin-license'
-import defaultsDeep from 'lodash/defaultsDeep'
+import { defaultsDeep } from 'lodash'
-
-import { builtins } from './builtins'
 
 export default function rollupConfig ({
   rootDir = process.cwd(),
@@ -17,12 +15,6 @@ export default function rollupConfig ({
   replace = {},
   alias = {},
   externals = [],
-  resolve = {
-    resolveOnly: [
-      /lodash/,
-      /^((?!node_modules).)*$/
-    ]
-  },
   ...options
 }, pkg) {
   if (!pkg) {
@@ -40,14 +32,7 @@ export default function rollupConfig ({
       format: 'cjs',
       preferConst: true
     },
-    external: [
+    external: externals,
-      // Dependencies that will be installed alongise with the nuxt package
-      ...Object.keys(pkg.dependencies || {}),
-      // Builtin node modules
-      ...builtins,
-      // Explicit externals
-      ...externals
-    ],
     plugins: [
       aliasPlugin(alias),
       replacePlugin({
@@ -58,7 +43,12 @@ export default function rollupConfig ({
           ...replace
         }
       }),
-      nodeResolvePlugin(resolve),
+      // nodeResolvePlugin({
+      //   preferBuiltins: true,
+      //   resolveOnly: [
+      //     /lodash/
+      //   ]
+      // }),
       commonjsPlugin({ include: /node_modules/ }),
       jsonPlugin(),
       licensePlugin({

test/dev/wp.config.test.js

@@ -6,12 +6,13 @@ describe('webpack configuration', () => {
   test('performance loader', () => {
     const js = { name: 'js', poolTimeout: Infinity }
     const css = { name: 'css', poolTimeout: Infinity }
+    const resolveModule = jest.fn(id => id)
     PerfLoader.warmup = jest.fn()
-    PerfLoader.warmupAll({ dev: true })
+    PerfLoader.warmupAll({ dev: true, resolveModule })
     expect(PerfLoader.warmup).toHaveBeenCalledTimes(2)
     expect(PerfLoader.warmup).toHaveBeenCalledWith(js, [
-      require.resolve('babel-loader'),
+      'babel-loader',
-      require.resolve('@babel/preset-env')
+      '@babel/preset-env'
     ])
     expect(PerfLoader.warmup).toHaveBeenCalledWith(css, ['css-loader'])
 
@@ -25,6 +26,9 @@ describe('webpack configuration', () => {
           parallel: true,
           cache: true
         }
+      },
+      {
+        resolveModule
       }
     )
     expect(perfLoader.workerPools).toMatchObject({ js, css })

test/fixtures/spa-base/nuxt.config.js

@@ -1,5 +1,5 @@
 import { resolve } from 'path'
-import defaultsDeep from 'lodash/defaultsDeep'
+import { defaultsDeep } from 'lodash'
 import baseNuxtConfig from '../spa/nuxt.config'
 
 const config = {

test/fixtures/spa-hash/nuxt.config.js

@@ -1,5 +1,5 @@
 import { resolve } from 'path'
-import defaultsDeep from 'lodash/defaultsDeep'
+import { defaultsDeep } from 'lodash'
 import baseNuxtConfig from '../spa/nuxt.config'
 
 const config = {

test/utils/chrome.js

@@ -8,7 +8,7 @@ import path from 'path'
 import { execSync, execFileSync } from 'child_process'
 import isWsl from 'is-wsl'
 import consola from 'consola'
-import uniq from 'lodash/uniq'
+import { uniq } from 'lodash'
 
 const newLineRegex = /\r?\n/
 

test/utils/setup-env.js

@@ -21,3 +21,15 @@ function errorTrap (error) {
 
 process.on('unhandledRejection', errorTrap)
 process.on('uncaughtException', errorTrap)
+
+expect.extend({
+  toBePath (received, posixPath, winPath) {
+    const expectedPath = isWin ? winPath : posixPath
+    const pass = received === expectedPath
+    return {
+      pass,
+      message: () =>
+        `expected path ${received} to be ${expectedPath}`
+    }
+  }
+})

yarn.lock

@@ -3966,7 +3966,7 @@ caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000981, caniuse-lite@^1.0.30001109, can
   resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001168.tgz#6fcd098c139d003b9bd484cbb9ca26cb89907f9a"
   integrity sha512-P2zmX7swIXKu+GMMR01TWa4csIKELTNnZKc+f1CjebmZJQtTAEXmpQSoKVJVVcvPGAA0TEYTOUp3VehavZSFPQ==
 
-caniuse-lite@^1.0.30001170:
+caniuse-lite@^1.0.30001168:
   version "1.0.30001170"
   resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001170.tgz#0088bfecc6a14694969e391cc29d7eb6362ca6a7"
   integrity sha512-Dd4d/+0tsK0UNLrZs3CvNukqalnVTRrxb5mcQm8rHL49t7V5ZaTygwXkrq+FB+dVDf++4ri8eJnFEJAB8332PA==
@@ -4973,7 +4973,7 @@ debug@3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.2.0:
+debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
   version "4.3.1"
   resolved "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz#f0d229c505e0c6d8c49ac553d1b13dc183f6b2ee"
   integrity sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==
@@ -5761,11 +5761,6 @@ eslint@^7.16.0:
     text-table "^0.2.0"
     v8-compile-cache "^2.0.3"
 
-esm@^3.2.25:
-  version "3.2.25"
-  resolved "https://registry.npmjs.org/esm/-/esm-3.2.25.tgz#342c18c29d56157688ba5ce31f8431fbb795cc10"
-  integrity sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA==
-
 espree@^6.2.1:
   version "6.2.1"
   resolved "https://registry.npmjs.org/espree/-/espree-6.2.1.tgz#77fc72e1fd744a2052c20f38a5b575832e82734a"
@@ -8500,7 +8495,7 @@ lodash@4.17.19:
   resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
   integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
-lodash@^4.15.0, lodash@^4.17.12, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.5, lodash@^4.2.1:
+lodash@^4.15.0, lodash@^4.17.12, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.4.2:
   version "4.17.20"
   resolved "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
   integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
@@ -10041,6 +10036,13 @@ pluralize@^8.0.0:
   resolved "https://registry.npmjs.org/pluralize/-/pluralize-8.0.0.tgz#1a6fa16a38d12a1901e0320fa017051c539ce3b1"
   integrity sha512-Nc3IT5yHzflTfbjgqWcCPpo7DaKy4FnpB0l/zCAW0Tc7jxAiuqSxHasntB3D7887LSrA93kDJ9IXovxJYxyLCA==
 
+pnp-webpack-plugin@^1.6.4:
+  version "1.6.4"
+  resolved "https://registry.npmjs.org/pnp-webpack-plugin/-/pnp-webpack-plugin-1.6.4.tgz#c9711ac4dc48a685dabafc86f8b6dd9f8df84149"
+  integrity sha512-7Wjy+9E3WwLOEL30D+m8TSTF7qJJUJLONBnwQp0518siuMxUQUbgZwssaFX+QKlZkjHZcw/IpZCt/H0srrntSg==
+  dependencies:
+    ts-pnp "^1.1.6"
+
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.npmjs.org/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -12768,6 +12770,11 @@ ts-jest@26.x:
     semver "7.x"
     yargs-parser "20.x"
 
+ts-pnp@^1.1.6:
+  version "1.2.0"
+  resolved "https://registry.npmjs.org/ts-pnp/-/ts-pnp-1.2.0.tgz#a500ad084b0798f1c3071af391e65912c86bca92"
+  integrity sha512-csd+vJOb/gkzvcCHgTGSChYpy5f1/XKNsmvBGO4JXS+z1v2HobugDz4s1IeFXM3wZB44uczs+eazB5Q/ccdhQw==
+
 tsconfig-paths@^3.9.0:
   version "3.9.0"
   resolved "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz#098547a6c4448807e8fcb8eae081064ee9a3c90b"
@@ -13052,11 +13059,6 @@ url-loader@^4.1.1:
     mime-types "^2.1.27"
     schema-utils "^3.0.0"
 
-url-polyfill@^1.1.12:
-  version "1.1.12"
-  resolved "https://registry.npmjs.org/url-polyfill/-/url-polyfill-1.1.12.tgz#6cdaa17f6b022841b3aec0bf8dbd87ac0cd33331"
-  integrity sha512-mYFmBHCapZjtcNHW0MDq9967t+z4Dmg5CJ0KqysK3+ZbyoNOWQHksGCTWwDhxGXllkWlOc10Xfko6v4a3ucM6A==
-
 url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.npmjs.org/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"