1aed9eaac1
Closes [13709](https://github.com/vercel/next.js/issues/13709). The solution works, **(tested and confirmed with true and false flags with the latest next version)** though I am quite sure this is not the most elegant and proper way to implement it. I have spent the good part of yesterday and today's morning in order to make it more generic but since it's my first time working with anything related to webpack I have struggled miserably. Last, but not least I'm unsure if this is the most proper naming for the flag. Please, let me know what you want me to change and I'll get it done asap.
1283 lines
42 KiB
TypeScript
1283 lines
42 KiB
TypeScript
import { codeFrameColumns } from '@babel/code-frame'
|
|
import ReactRefreshWebpackPlugin from '@next/react-refresh-utils/ReactRefreshWebpackPlugin'
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import crypto from 'crypto'
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import { readFileSync } from 'fs'
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import chalk from 'next/dist/compiled/chalk'
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import TerserPlugin from 'next/dist/compiled/terser-webpack-plugin'
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import path from 'path'
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import webpack from 'webpack'
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import type { Configuration } from 'webpack'
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import {
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DOT_NEXT_ALIAS,
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NEXT_PROJECT_ROOT,
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NEXT_PROJECT_ROOT_DIST_CLIENT,
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PAGES_DIR_ALIAS,
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} from '../lib/constants'
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|
import { fileExists } from '../lib/file-exists'
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import { resolveRequest } from '../lib/resolve-request'
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import {
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CLIENT_STATIC_FILES_RUNTIME_MAIN,
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CLIENT_STATIC_FILES_RUNTIME_POLYFILLS,
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|
CLIENT_STATIC_FILES_RUNTIME_WEBPACK,
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REACT_LOADABLE_MANIFEST,
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SERVERLESS_DIRECTORY,
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SERVER_DIRECTORY,
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} from '../next-server/lib/constants'
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import { execOnce } from '../next-server/lib/utils'
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import { findPageFile } from '../server/lib/find-page-file'
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import { WebpackEntrypoints } from './entries'
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|
import {
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collectPlugins,
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|
PluginMetaData,
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|
VALID_MIDDLEWARE,
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} from './plugins/collect-plugins'
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import { build as buildConfiguration } from './webpack/config'
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import { __overrideCssConfiguration } from './webpack/config/blocks/css/overrideCssConfiguration'
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import { pluginLoaderOptions } from './webpack/loaders/next-plugin-loader'
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import BuildManifestPlugin from './webpack/plugins/build-manifest-plugin'
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import ChunkNamesPlugin from './webpack/plugins/chunk-names-plugin'
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import { CssMinimizerPlugin } from './webpack/plugins/css-minimizer-plugin'
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import { JsConfigPathsPlugin } from './webpack/plugins/jsconfig-paths-plugin'
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import { DropClientPage } from './webpack/plugins/next-drop-client-page-plugin'
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import NextJsSsrImportPlugin from './webpack/plugins/nextjs-ssr-import'
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import NextJsSSRModuleCachePlugin from './webpack/plugins/nextjs-ssr-module-cache'
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import PagesManifestPlugin from './webpack/plugins/pages-manifest-plugin'
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import { ProfilingPlugin } from './webpack/plugins/profiling-plugin'
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import { ReactLoadablePlugin } from './webpack/plugins/react-loadable-plugin'
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import { ServerlessPlugin } from './webpack/plugins/serverless-plugin'
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import WebpackConformancePlugin, {
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DuplicatePolyfillsConformanceCheck,
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GranularChunksConformanceCheck,
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MinificationConformanceCheck,
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ReactSyncScriptsConformanceCheck,
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} from './webpack/plugins/webpack-conformance-plugin'
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|
import { WellKnownErrorsPlugin } from './webpack/plugins/wellknown-errors-plugin'
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|
|
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type ExcludesFalse = <T>(x: T | false) => x is T
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|
|
const isWebpack5 = parseInt(webpack.version!) === 5
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|
|
const escapePathVariables = (value: any) => {
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return typeof value === 'string'
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? value.replace(/\[(\\*[\w:]+\\*)\]/gi, '[\\$1\\]')
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: value
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}
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|
|
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const devtoolRevertWarning = execOnce((devtool: Configuration['devtool']) => {
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console.warn(
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chalk.yellow.bold('Warning: ') +
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chalk.bold(`Reverting webpack devtool to '${devtool}'.\n`) +
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'Changing the webpack devtool in development mode will cause severe performance regressions.\n' +
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'Read more: https://err.sh/next.js/improper-devtool'
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)
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})
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|
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function parseJsonFile(filePath: string) {
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const JSON5 = require('next/dist/compiled/json5')
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const contents = readFileSync(filePath, 'utf8')
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|
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// Special case an empty file
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|
if (contents.trim() === '') {
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return {}
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}
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|
|
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try {
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return JSON5.parse(contents)
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} catch (err) {
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const codeFrame = codeFrameColumns(
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String(contents),
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{ start: { line: err.lineNumber, column: err.columnNumber } },
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{ message: err.message, highlightCode: true }
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|
)
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throw new Error(`Failed to parse "${filePath}":\n${codeFrame}`)
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}
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}
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|
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function getOptimizedAliases(isServer: boolean): { [pkg: string]: string } {
|
|
if (isServer) {
|
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return {}
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|
}
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|
|
|
const stubWindowFetch = path.join(__dirname, 'polyfills', 'fetch', 'index.js')
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|
const stubObjectAssign = path.join(__dirname, 'polyfills', 'object-assign.js')
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const shimAssign = path.join(__dirname, 'polyfills', 'object.assign')
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|
return Object.assign(
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{},
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{
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unfetch$: stubWindowFetch,
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'isomorphic-unfetch$': stubWindowFetch,
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|
'whatwg-fetch$': path.join(
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__dirname,
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'polyfills',
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'fetch',
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'whatwg-fetch.js'
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),
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},
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{
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'object-assign$': stubObjectAssign,
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|
|
// Stub Package: object.assign
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'object.assign/auto': path.join(shimAssign, 'auto.js'),
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'object.assign/implementation': path.join(
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shimAssign,
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'implementation.js'
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),
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'object.assign$': path.join(shimAssign, 'index.js'),
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|
'object.assign/polyfill': path.join(shimAssign, 'polyfill.js'),
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'object.assign/shim': path.join(shimAssign, 'shim.js'),
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|
|
|
// Replace: full URL polyfill with platform-based polyfill
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|
url: require.resolve('native-url'),
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|
}
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|
)
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|
}
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|
|
|
type ClientEntries = {
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'main.js': string[]
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|
} & {
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[key: string]: string
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}
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|
|
|
export default async function getBaseWebpackConfig(
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|
dir: string,
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|
{
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buildId,
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config,
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dev = false,
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isServer = false,
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pagesDir,
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|
tracer,
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target = 'server',
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entrypoints,
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}: {
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buildId: string
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config: any
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dev?: boolean
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isServer?: boolean
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pagesDir: string
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target?: string
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tracer?: any
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entrypoints: WebpackEntrypoints
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}
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): Promise<webpack.Configuration> {
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|
const productionBrowserSourceMaps =
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config.experimental.productionBrowserSourceMaps && !isServer
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|
let plugins: PluginMetaData[] = []
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|
let babelPresetPlugins: { dir: string; config: any }[] = []
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|
if (config.experimental.plugins) {
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plugins = await collectPlugins(dir, config.env, config.plugins)
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pluginLoaderOptions.plugins = plugins
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for (const plugin of plugins) {
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if (plugin.middleware.includes('babel-preset-build')) {
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babelPresetPlugins.push({
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dir: plugin.directory,
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config: plugin.config,
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})
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}
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}
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}
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const hasReactRefresh = dev && !isServer
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const distDir = path.join(dir, config.distDir)
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const defaultLoaders = {
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babel: {
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loader: 'next-babel-loader',
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options: {
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isServer,
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distDir,
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pagesDir,
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cwd: dir,
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cache: true,
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babelPresetPlugins,
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hasModern: !!config.experimental.modern,
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development: dev,
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hasReactRefresh,
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},
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},
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|
// Backwards compat
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hotSelfAccept: {
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loader: 'noop-loader',
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},
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}
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const babelIncludeRegexes: RegExp[] = [
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/next[\\/]dist[\\/]next-server[\\/]lib/,
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/next[\\/]dist[\\/]client/,
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/next[\\/]dist[\\/]pages/,
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/[\\/](strip-ansi|ansi-regex)[\\/]/,
|
|
...(config.experimental.plugins
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|
? VALID_MIDDLEWARE.map((name) => new RegExp(`src(\\\\|/)${name}`))
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: []),
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]
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|
// Support for NODE_PATH
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|
const nodePathList = (process.env.NODE_PATH || '')
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|
.split(process.platform === 'win32' ? ';' : ':')
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|
.filter((p) => !!p)
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|
const isServerless = target === 'serverless'
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|
const isServerlessTrace = target === 'experimental-serverless-trace'
|
|
// Intentionally not using isTargetLikeServerless helper
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|
const isLikeServerless = isServerless || isServerlessTrace
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const outputDir = isLikeServerless ? SERVERLESS_DIRECTORY : SERVER_DIRECTORY
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const outputPath = path.join(distDir, isServer ? outputDir : '')
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const totalPages = Object.keys(entrypoints).length
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const clientEntries = !isServer
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? ({
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|
// Backwards compatibility
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|
'main.js': [],
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|
[CLIENT_STATIC_FILES_RUNTIME_MAIN]:
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`.${path.sep}` +
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path.relative(
|
|
dir,
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|
path.join(
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|
NEXT_PROJECT_ROOT_DIST_CLIENT,
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|
dev ? `next-dev.js` : 'next.js'
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)
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),
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|
[CLIENT_STATIC_FILES_RUNTIME_POLYFILLS]: path.join(
|
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NEXT_PROJECT_ROOT_DIST_CLIENT,
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|
'polyfills.js'
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|
),
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} as ClientEntries)
|
|
: undefined
|
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|
|
let typeScriptPath
|
|
try {
|
|
typeScriptPath = resolveRequest('typescript', `${dir}/`)
|
|
} catch (_) {}
|
|
const tsConfigPath = path.join(dir, 'tsconfig.json')
|
|
const useTypeScript = Boolean(
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|
typeScriptPath && (await fileExists(tsConfigPath))
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|
)
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|
|
let jsConfig
|
|
// jsconfig is a subset of tsconfig
|
|
if (useTypeScript) {
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|
jsConfig = parseJsonFile(tsConfigPath)
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|
}
|
|
|
|
const jsConfigPath = path.join(dir, 'jsconfig.json')
|
|
if (!useTypeScript && (await fileExists(jsConfigPath))) {
|
|
jsConfig = parseJsonFile(jsConfigPath)
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|
}
|
|
|
|
let resolvedBaseUrl
|
|
if (jsConfig?.compilerOptions?.baseUrl) {
|
|
resolvedBaseUrl = path.resolve(dir, jsConfig.compilerOptions.baseUrl)
|
|
}
|
|
|
|
function getReactProfilingInProduction() {
|
|
if (config.reactProductionProfiling) {
|
|
return {
|
|
'react-dom$': 'react-dom/profiling',
|
|
'scheduler/tracing': 'scheduler/tracing-profiling',
|
|
}
|
|
}
|
|
}
|
|
|
|
const resolveConfig = {
|
|
// Disable .mjs for node_modules bundling
|
|
extensions: isServer
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|
? [
|
|
'.js',
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|
'.mjs',
|
|
...(useTypeScript ? ['.tsx', '.ts'] : []),
|
|
'.jsx',
|
|
'.json',
|
|
'.wasm',
|
|
]
|
|
: [
|
|
'.mjs',
|
|
'.js',
|
|
...(useTypeScript ? ['.tsx', '.ts'] : []),
|
|
'.jsx',
|
|
'.json',
|
|
'.wasm',
|
|
],
|
|
modules: [
|
|
'node_modules',
|
|
...nodePathList, // Support for NODE_PATH environment variable
|
|
],
|
|
alias: {
|
|
// These aliases make sure the wrapper module is not included in the bundles
|
|
// Which makes bundles slightly smaller, but also skips parsing a module that we know will result in this alias
|
|
'next/head': 'next/dist/next-server/lib/head.js',
|
|
'next/router': 'next/dist/client/router.js',
|
|
'next/config': 'next/dist/next-server/lib/runtime-config.js',
|
|
'next/dynamic': 'next/dist/next-server/lib/dynamic.js',
|
|
next: NEXT_PROJECT_ROOT,
|
|
[PAGES_DIR_ALIAS]: pagesDir,
|
|
[DOT_NEXT_ALIAS]: distDir,
|
|
...getOptimizedAliases(isServer),
|
|
...getReactProfilingInProduction(),
|
|
},
|
|
mainFields: isServer ? ['main', 'module'] : ['browser', 'module', 'main'],
|
|
plugins: isWebpack5
|
|
? // webpack 5+ has the PnP resolver built-in by default:
|
|
[]
|
|
: [require('pnp-webpack-plugin')],
|
|
}
|
|
|
|
const webpackMode = dev ? 'development' : 'production'
|
|
|
|
const terserOptions: any = {
|
|
parse: {
|
|
ecma: 8,
|
|
},
|
|
compress: {
|
|
ecma: 5,
|
|
warnings: false,
|
|
// The following two options are known to break valid JavaScript code
|
|
comparisons: false,
|
|
inline: 2, // https://github.com/vercel/next.js/issues/7178#issuecomment-493048965
|
|
},
|
|
mangle: { safari10: true },
|
|
output: {
|
|
ecma: 5,
|
|
safari10: true,
|
|
comments: false,
|
|
// Fixes usage of Emoji and certain Regex
|
|
ascii_only: true,
|
|
},
|
|
}
|
|
|
|
const isModuleCSS = (module: { type: string }): boolean => {
|
|
return (
|
|
// mini-css-extract-plugin
|
|
module.type === `css/mini-extract` ||
|
|
// extract-css-chunks-webpack-plugin (old)
|
|
module.type === `css/extract-chunks` ||
|
|
// extract-css-chunks-webpack-plugin (new)
|
|
module.type === `css/extract-css-chunks`
|
|
)
|
|
}
|
|
|
|
// Contains various versions of the Webpack SplitChunksPlugin used in different build types
|
|
const splitChunksConfigs: {
|
|
[propName: string]: webpack.Options.SplitChunksOptions
|
|
} = {
|
|
dev: {
|
|
cacheGroups: {
|
|
default: false,
|
|
vendors: false,
|
|
// In webpack 5 vendors was renamed to defaultVendors
|
|
defaultVendors: false,
|
|
},
|
|
},
|
|
prodGranular: {
|
|
chunks: 'all',
|
|
cacheGroups: {
|
|
default: false,
|
|
vendors: false,
|
|
// In webpack 5 vendors was renamed to defaultVendors
|
|
defaultVendors: false,
|
|
framework: {
|
|
chunks: 'all',
|
|
name: isWebpack5 ? 'static/chunks/framework' : 'framework',
|
|
// This regex ignores nested copies of framework libraries so they're
|
|
// bundled with their issuer.
|
|
// https://github.com/vercel/next.js/pull/9012
|
|
test: /(?<!node_modules.*)[\\/]node_modules[\\/](react|react-dom|scheduler|prop-types|use-subscription)[\\/]/,
|
|
priority: 40,
|
|
// Don't let webpack eliminate this chunk (prevents this chunk from
|
|
// becoming a part of the commons chunk)
|
|
enforce: true,
|
|
},
|
|
lib: {
|
|
test(module: { size: Function; identifier: Function }): boolean {
|
|
return (
|
|
module.size() > 160000 &&
|
|
/node_modules[/\\]/.test(module.identifier())
|
|
)
|
|
},
|
|
name(module: {
|
|
type: string
|
|
libIdent?: Function
|
|
updateHash: (hash: crypto.Hash) => void
|
|
}): string {
|
|
const hash = crypto.createHash('sha1')
|
|
if (isModuleCSS(module)) {
|
|
module.updateHash(hash)
|
|
} else {
|
|
if (!module.libIdent) {
|
|
throw new Error(
|
|
`Encountered unknown module type: ${module.type}. Please open an issue.`
|
|
)
|
|
}
|
|
|
|
hash.update(module.libIdent({ context: dir }))
|
|
}
|
|
|
|
return (
|
|
(isWebpack5 ? 'static/chunks/' : '') +
|
|
hash.digest('hex').substring(0, 8)
|
|
)
|
|
},
|
|
priority: 30,
|
|
minChunks: 1,
|
|
reuseExistingChunk: true,
|
|
},
|
|
commons: {
|
|
name: (isWebpack5 ? 'static/chunks/' : '') + 'commons',
|
|
minChunks: totalPages,
|
|
priority: 20,
|
|
},
|
|
shared: {
|
|
name(module, chunks) {
|
|
return (
|
|
(isWebpack5 ? 'static/chunks/' : '') +
|
|
(crypto
|
|
.createHash('sha1')
|
|
.update(
|
|
chunks.reduce(
|
|
(acc: string, chunk: webpack.compilation.Chunk) => {
|
|
return acc + chunk.name
|
|
},
|
|
''
|
|
)
|
|
)
|
|
.digest('hex') +
|
|
(isModuleCSS(module) ? '_CSS' : ''))
|
|
)
|
|
},
|
|
priority: 10,
|
|
minChunks: 2,
|
|
reuseExistingChunk: true,
|
|
},
|
|
},
|
|
maxInitialRequests: 25,
|
|
minSize: 20000,
|
|
},
|
|
}
|
|
|
|
// Select appropriate SplitChunksPlugin config for this build
|
|
let splitChunksConfig: webpack.Options.SplitChunksOptions
|
|
if (dev) {
|
|
splitChunksConfig = splitChunksConfigs.dev
|
|
} else {
|
|
splitChunksConfig = splitChunksConfigs.prodGranular
|
|
}
|
|
|
|
const crossOrigin =
|
|
!config.crossOrigin && config.experimental.modern
|
|
? 'anonymous'
|
|
: config.crossOrigin
|
|
|
|
let customAppFile: string | null = await findPageFile(
|
|
pagesDir,
|
|
'/_app',
|
|
config.pageExtensions
|
|
)
|
|
if (customAppFile) {
|
|
customAppFile = path.resolve(path.join(pagesDir, customAppFile))
|
|
}
|
|
|
|
const conformanceConfig = Object.assign(
|
|
{
|
|
ReactSyncScriptsConformanceCheck: {
|
|
enabled: true,
|
|
},
|
|
MinificationConformanceCheck: {
|
|
enabled: true,
|
|
},
|
|
DuplicatePolyfillsConformanceCheck: {
|
|
enabled: true,
|
|
BlockedAPIToBePolyfilled: Object.assign(
|
|
[],
|
|
['fetch'],
|
|
config.conformance?.DuplicatePolyfillsConformanceCheck
|
|
?.BlockedAPIToBePolyfilled || []
|
|
),
|
|
},
|
|
GranularChunksConformanceCheck: {
|
|
enabled: true,
|
|
},
|
|
},
|
|
config.conformance
|
|
)
|
|
let webpackConfig: webpack.Configuration = {
|
|
externals: !isServer
|
|
? // make sure importing "next" is handled gracefully for client
|
|
// bundles in case a user imported types and it wasn't removed
|
|
// TODO: should we warn/error for this instead?
|
|
['next']
|
|
: !isServerless
|
|
? [
|
|
(context, request, callback) => {
|
|
if (request === 'next') {
|
|
return callback(undefined, `commonjs ${request}`)
|
|
}
|
|
|
|
const notExternalModules = [
|
|
'next/app',
|
|
'next/document',
|
|
'next/link',
|
|
'next/error',
|
|
'string-hash',
|
|
'next/constants',
|
|
]
|
|
|
|
if (notExternalModules.indexOf(request) !== -1) {
|
|
return callback()
|
|
}
|
|
|
|
// We need to externalize internal requests for files intended to
|
|
// not be bundled.
|
|
|
|
const isLocal: boolean =
|
|
request.startsWith('.') ||
|
|
// Always check for unix-style path, as webpack sometimes
|
|
// normalizes as posix.
|
|
path.posix.isAbsolute(request) ||
|
|
// When on Windows, we also want to check for Windows-specific
|
|
// absolute paths.
|
|
(process.platform === 'win32' && path.win32.isAbsolute(request))
|
|
const isLikelyNextExternal =
|
|
isLocal && /[/\\]next-server[/\\]/.test(request)
|
|
|
|
// Relative requires don't need custom resolution, because they
|
|
// are relative to requests we've already resolved here.
|
|
// Absolute requires (require('/foo')) are extremely uncommon, but
|
|
// also have no need for customization as they're already resolved.
|
|
if (isLocal && !isLikelyNextExternal) {
|
|
return callback()
|
|
}
|
|
|
|
// Resolve the import with the webpack provided context, this
|
|
// ensures we're resolving the correct version when multiple
|
|
// exist.
|
|
let res: string
|
|
try {
|
|
res = resolveRequest(request, `${context}/`)
|
|
} catch (err) {
|
|
// If the request cannot be resolved, we need to tell webpack to
|
|
// "bundle" it so that webpack shows an error (that it cannot be
|
|
// resolved).
|
|
return callback()
|
|
}
|
|
|
|
// Same as above, if the request cannot be resolved we need to have
|
|
// webpack "bundle" it so it surfaces the not found error.
|
|
if (!res) {
|
|
return callback()
|
|
}
|
|
|
|
let isNextExternal: boolean = false
|
|
if (isLocal) {
|
|
// we need to process next-server/lib/router/router so that
|
|
// the DefinePlugin can inject process.env values
|
|
isNextExternal = /next[/\\]dist[/\\]next-server[/\\](?!lib[/\\]router[/\\]router)/.test(
|
|
res
|
|
)
|
|
|
|
if (!isNextExternal) {
|
|
return callback()
|
|
}
|
|
}
|
|
|
|
// `isNextExternal` special cases Next.js' internal requires that
|
|
// should not be bundled. We need to skip the base resolve routine
|
|
// to prevent it from being bundled (assumes Next.js version cannot
|
|
// mismatch).
|
|
if (!isNextExternal) {
|
|
// Bundled Node.js code is relocated without its node_modules tree.
|
|
// This means we need to make sure its request resolves to the same
|
|
// package that'll be available at runtime. If it's not identical,
|
|
// we need to bundle the code (even if it _should_ be external).
|
|
let baseRes: string | null
|
|
try {
|
|
baseRes = resolveRequest(request, `${dir}/`)
|
|
} catch (err) {
|
|
baseRes = null
|
|
}
|
|
|
|
// Same as above: if the package, when required from the root,
|
|
// would be different from what the real resolution would use, we
|
|
// cannot externalize it.
|
|
if (baseRes !== res) {
|
|
return callback()
|
|
}
|
|
}
|
|
|
|
// Default pages have to be transpiled
|
|
if (
|
|
!res.match(/next[/\\]dist[/\\]next-server[/\\]/) &&
|
|
(res.match(/[/\\]next[/\\]dist[/\\]/) ||
|
|
// This is the @babel/plugin-transform-runtime "helpers: true" option
|
|
res.match(/node_modules[/\\]@babel[/\\]runtime[/\\]/))
|
|
) {
|
|
return callback()
|
|
}
|
|
|
|
// Webpack itself has to be compiled because it doesn't always use module relative paths
|
|
if (
|
|
res.match(/node_modules[/\\]webpack/) ||
|
|
res.match(/node_modules[/\\]css-loader/)
|
|
) {
|
|
return callback()
|
|
}
|
|
|
|
// Anything else that is standard JavaScript within `node_modules`
|
|
// can be externalized.
|
|
if (isNextExternal || res.match(/node_modules[/\\].*\.js$/)) {
|
|
const externalRequest = isNextExternal
|
|
? // Generate Next.js external import
|
|
path.posix.join(
|
|
'next',
|
|
'dist',
|
|
path
|
|
.relative(
|
|
// Root of Next.js package:
|
|
path.join(__dirname, '..'),
|
|
res
|
|
)
|
|
// Windows path normalization
|
|
.replace(/\\/g, '/')
|
|
)
|
|
: request
|
|
|
|
return callback(undefined, `commonjs ${externalRequest}`)
|
|
}
|
|
|
|
// Default behavior: bundle the code!
|
|
callback()
|
|
},
|
|
]
|
|
: [
|
|
// When the 'serverless' target is used all node_modules will be compiled into the output bundles
|
|
// So that the 'serverless' bundles have 0 runtime dependencies
|
|
'@ampproject/toolbox-optimizer', // except this one
|
|
],
|
|
optimization: {
|
|
noEmitOnErrors: dev,
|
|
checkWasmTypes: false,
|
|
nodeEnv: false,
|
|
splitChunks: isServer ? false : splitChunksConfig,
|
|
runtimeChunk: isServer
|
|
? undefined
|
|
: { name: CLIENT_STATIC_FILES_RUNTIME_WEBPACK },
|
|
minimize: !(dev || isServer),
|
|
minimizer: [
|
|
// Minify JavaScript
|
|
new TerserPlugin({
|
|
extractComments: false,
|
|
cache: path.join(distDir, 'cache', 'next-minifier'),
|
|
parallel: config.experimental.cpus || true,
|
|
terserOptions,
|
|
}),
|
|
// Minify CSS
|
|
new CssMinimizerPlugin({
|
|
postcssOptions: {
|
|
map: {
|
|
// `inline: false` generates the source map in a separate file.
|
|
// Otherwise, the CSS file is needlessly large.
|
|
inline: false,
|
|
// `annotation: false` skips appending the `sourceMappingURL`
|
|
// to the end of the CSS file. Webpack already handles this.
|
|
annotation: false,
|
|
},
|
|
},
|
|
}),
|
|
],
|
|
},
|
|
context: dir,
|
|
node: {
|
|
setImmediate: false,
|
|
},
|
|
// Kept as function to be backwards compatible
|
|
entry: async () => {
|
|
return {
|
|
...(clientEntries ? clientEntries : {}),
|
|
...entrypoints,
|
|
...(isServer
|
|
? {
|
|
'init-server.js': 'next-plugin-loader?middleware=on-init-server!',
|
|
'on-error-server.js':
|
|
'next-plugin-loader?middleware=on-error-server!',
|
|
}
|
|
: {}),
|
|
}
|
|
},
|
|
watchOptions: {
|
|
ignored: ['.git/**', 'node_modules/**', '.git/**'],
|
|
},
|
|
output: {
|
|
path: outputPath,
|
|
// On the server we don't use the chunkhash
|
|
filename: dev || isServer ? '[name].js' : '[name]-[chunkhash].js',
|
|
library: isServer ? undefined : '_N_E',
|
|
libraryTarget: isServer ? 'commonjs2' : 'assign',
|
|
hotUpdateChunkFilename: isWebpack5
|
|
? 'static/webpack/[id].[fullhash].hot-update.js'
|
|
: 'static/webpack/[id].[hash].hot-update.js',
|
|
hotUpdateMainFilename: isWebpack5
|
|
? 'static/webpack/[fullhash].hot-update.json'
|
|
: 'static/webpack/[hash].hot-update.json',
|
|
// This saves chunks with the name given via `import()`
|
|
chunkFilename: isServer
|
|
? `${dev ? '[name]' : '[name].[contenthash]'}.js`
|
|
: `static/chunks/${dev ? '[name]' : '[name].[contenthash]'}.js`,
|
|
strictModuleExceptionHandling: true,
|
|
crossOriginLoading: crossOrigin,
|
|
futureEmitAssets: !dev,
|
|
webassemblyModuleFilename: 'static/wasm/[modulehash].wasm',
|
|
},
|
|
performance: false,
|
|
resolve: resolveConfig,
|
|
resolveLoader: {
|
|
// The loaders Next.js provides
|
|
alias: [
|
|
'emit-file-loader',
|
|
'error-loader',
|
|
'next-babel-loader',
|
|
'next-client-pages-loader',
|
|
'next-data-loader',
|
|
'next-serverless-loader',
|
|
'noop-loader',
|
|
'next-plugin-loader',
|
|
].reduce((alias, loader) => {
|
|
// using multiple aliases to replace `resolveLoader.modules`
|
|
alias[loader] = path.join(__dirname, 'webpack', 'loaders', loader)
|
|
|
|
return alias
|
|
}, {} as Record<string, string>),
|
|
modules: [
|
|
'node_modules',
|
|
...nodePathList, // Support for NODE_PATH environment variable
|
|
],
|
|
plugins: isWebpack5 ? [] : [require('pnp-webpack-plugin')],
|
|
},
|
|
module: {
|
|
rules: [
|
|
{
|
|
test: /\.(tsx|ts|js|mjs|jsx)$/,
|
|
include: [dir, ...babelIncludeRegexes],
|
|
exclude: (excludePath: string) => {
|
|
if (babelIncludeRegexes.some((r) => r.test(excludePath))) {
|
|
return false
|
|
}
|
|
return /node_modules/.test(excludePath)
|
|
},
|
|
use: config.experimental.babelMultiThread
|
|
? [
|
|
// Move Babel transpilation into a thread pool (2 workers, unlimited batch size).
|
|
// Applying a cache to the off-thread work avoids paying transfer costs for unchanged modules.
|
|
{
|
|
loader: 'next/dist/compiled/cache-loader',
|
|
options: {
|
|
cacheContext: dir,
|
|
cacheDirectory: path.join(dir, '.next', 'cache', 'webpack'),
|
|
cacheIdentifier: `webpack${isServer ? '-server' : ''}${
|
|
config.experimental.modern ? '-hasmodern' : ''
|
|
}`,
|
|
},
|
|
},
|
|
{
|
|
loader: require.resolve('next/dist/compiled/thread-loader'),
|
|
options: {
|
|
workers: 2,
|
|
workerParallelJobs: Infinity,
|
|
},
|
|
},
|
|
hasReactRefresh
|
|
? require.resolve('@next/react-refresh-utils/loader')
|
|
: '',
|
|
defaultLoaders.babel,
|
|
].filter(Boolean)
|
|
: hasReactRefresh
|
|
? [
|
|
require.resolve('@next/react-refresh-utils/loader'),
|
|
defaultLoaders.babel,
|
|
]
|
|
: defaultLoaders.babel,
|
|
},
|
|
].filter(Boolean),
|
|
},
|
|
plugins: [
|
|
hasReactRefresh && new ReactRefreshWebpackPlugin(),
|
|
// This plugin makes sure `output.filename` is used for entry chunks
|
|
!isWebpack5 && new ChunkNamesPlugin(),
|
|
new webpack.DefinePlugin({
|
|
...Object.keys(process.env).reduce(
|
|
(prev: { [key: string]: string }, key: string) => {
|
|
if (key.startsWith('NEXT_PUBLIC_')) {
|
|
prev[`process.env.${key}`] = JSON.stringify(process.env[key]!)
|
|
}
|
|
return prev
|
|
},
|
|
{}
|
|
),
|
|
...Object.keys(config.env).reduce((acc, key) => {
|
|
if (/^(?:NODE_.+)|^(?:__.+)$/i.test(key)) {
|
|
throw new Error(
|
|
`The key "${key}" under "env" in next.config.js is not allowed. https://err.sh/vercel/next.js/env-key-not-allowed`
|
|
)
|
|
}
|
|
|
|
return {
|
|
...acc,
|
|
[`process.env.${key}`]: JSON.stringify(config.env[key]),
|
|
}
|
|
}, {}),
|
|
'process.env.NODE_ENV': JSON.stringify(webpackMode),
|
|
'process.env.__NEXT_CROSS_ORIGIN': JSON.stringify(crossOrigin),
|
|
'process.browser': JSON.stringify(!isServer),
|
|
'process.env.__NEXT_TEST_MODE': JSON.stringify(
|
|
process.env.__NEXT_TEST_MODE
|
|
),
|
|
// This is used in client/dev-error-overlay/hot-dev-client.js to replace the dist directory
|
|
...(dev && !isServer
|
|
? {
|
|
'process.env.__NEXT_DIST_DIR': JSON.stringify(distDir),
|
|
}
|
|
: {}),
|
|
'process.env.__NEXT_TRAILING_SLASH': JSON.stringify(
|
|
config.experimental.trailingSlash
|
|
),
|
|
'process.env.__NEXT_EXPORT_TRAILING_SLASH': JSON.stringify(
|
|
config.exportTrailingSlash
|
|
),
|
|
'process.env.__NEXT_MODERN_BUILD': JSON.stringify(
|
|
config.experimental.modern && !dev
|
|
),
|
|
'process.env.__NEXT_BUILD_INDICATOR': JSON.stringify(
|
|
config.devIndicators.buildActivity
|
|
),
|
|
'process.env.__NEXT_PRERENDER_INDICATOR': JSON.stringify(
|
|
config.devIndicators.autoPrerender
|
|
),
|
|
'process.env.__NEXT_PLUGINS': JSON.stringify(
|
|
config.experimental.plugins
|
|
),
|
|
'process.env.__NEXT_STRICT_MODE': JSON.stringify(
|
|
config.reactStrictMode
|
|
),
|
|
'process.env.__NEXT_REACT_MODE': JSON.stringify(
|
|
config.experimental.reactMode
|
|
),
|
|
'process.env.__NEXT_ROUTER_BASEPATH': JSON.stringify(config.basePath),
|
|
...(isServer
|
|
? {
|
|
// Fix bad-actors in the npm ecosystem (e.g. `node-formidable`)
|
|
// This is typically found in unmaintained modules from the
|
|
// pre-webpack era (common in server-side code)
|
|
'global.GENTLY': JSON.stringify(false),
|
|
}
|
|
: undefined),
|
|
// stub process.env with proxy to warn a missing value is
|
|
// being accessed in development mode
|
|
...(config.experimental.pageEnv && process.env.NODE_ENV !== 'production'
|
|
? {
|
|
'process.env': `
|
|
new Proxy(${isServer ? 'process.env' : '{}'}, {
|
|
get(target, prop) {
|
|
if (typeof target[prop] === 'undefined') {
|
|
console.warn(\`An environment variable (\${prop}) that was not provided in the environment was accessed.\nSee more info here: https://err.sh/next.js/missing-env-value\`)
|
|
}
|
|
return target[prop]
|
|
}
|
|
})
|
|
`,
|
|
}
|
|
: {}),
|
|
}),
|
|
!isServer &&
|
|
new ReactLoadablePlugin({
|
|
filename: REACT_LOADABLE_MANIFEST,
|
|
}),
|
|
!isServer && new DropClientPage(),
|
|
// Moment.js is an extremely popular library that bundles large locale files
|
|
// by default due to how Webpack interprets its code. This is a practical
|
|
// solution that requires the user to opt into importing specific locales.
|
|
// https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
|
|
config.future.excludeDefaultMomentLocales &&
|
|
new webpack.IgnorePlugin({
|
|
resourceRegExp: /^\.\/locale$/,
|
|
contextRegExp: /moment$/,
|
|
}),
|
|
...(dev
|
|
? (() => {
|
|
// Even though require.cache is server only we have to clear assets from both compilations
|
|
// This is because the client compilation generates the build manifest that's used on the server side
|
|
const {
|
|
NextJsRequireCacheHotReloader,
|
|
} = require('./webpack/plugins/nextjs-require-cache-hot-reloader')
|
|
const devPlugins = [new NextJsRequireCacheHotReloader()]
|
|
|
|
if (!isServer) {
|
|
devPlugins.push(new webpack.HotModuleReplacementPlugin())
|
|
}
|
|
|
|
return devPlugins
|
|
})()
|
|
: []),
|
|
// Webpack 5 no longer requires this plugin in production:
|
|
!isWebpack5 && !dev && new webpack.HashedModuleIdsPlugin(),
|
|
!dev &&
|
|
new webpack.IgnorePlugin({
|
|
resourceRegExp: /react-is/,
|
|
contextRegExp: /(next-server|next)[\\/]dist[\\/]/,
|
|
}),
|
|
isServerless && isServer && new ServerlessPlugin(),
|
|
isServer && new PagesManifestPlugin(isLikeServerless),
|
|
target === 'server' &&
|
|
isServer &&
|
|
new NextJsSSRModuleCachePlugin({ outputPath }),
|
|
isServer && new NextJsSsrImportPlugin(),
|
|
!isServer &&
|
|
new BuildManifestPlugin({
|
|
buildId,
|
|
modern: config.experimental.modern,
|
|
}),
|
|
tracer &&
|
|
new ProfilingPlugin({
|
|
tracer,
|
|
}),
|
|
config.experimental.modern &&
|
|
!isServer &&
|
|
!dev &&
|
|
(() => {
|
|
const { NextEsmPlugin } = require('./webpack/plugins/next-esm-plugin')
|
|
return new NextEsmPlugin({
|
|
filename: (getFileName: Function | string) => (...args: any[]) => {
|
|
const name =
|
|
typeof getFileName === 'function'
|
|
? getFileName(...args)
|
|
: getFileName
|
|
|
|
return name.includes('.js')
|
|
? name.replace(/\.js$/, '.module.js')
|
|
: escapePathVariables(
|
|
args[0].chunk.name.replace(/\.js$/, '.module.js')
|
|
)
|
|
},
|
|
chunkFilename: (inputChunkName: string) =>
|
|
inputChunkName.replace(/\.js$/, '.module.js'),
|
|
})
|
|
})(),
|
|
config.experimental.conformance &&
|
|
!dev &&
|
|
new WebpackConformancePlugin({
|
|
tests: [
|
|
!isServer &&
|
|
conformanceConfig.MinificationConformanceCheck.enabled &&
|
|
new MinificationConformanceCheck(),
|
|
conformanceConfig.ReactSyncScriptsConformanceCheck.enabled &&
|
|
new ReactSyncScriptsConformanceCheck({
|
|
AllowedSources:
|
|
conformanceConfig.ReactSyncScriptsConformanceCheck
|
|
.allowedSources || [],
|
|
}),
|
|
!isServer &&
|
|
conformanceConfig.DuplicatePolyfillsConformanceCheck.enabled &&
|
|
new DuplicatePolyfillsConformanceCheck({
|
|
BlockedAPIToBePolyfilled:
|
|
conformanceConfig.DuplicatePolyfillsConformanceCheck
|
|
.BlockedAPIToBePolyfilled,
|
|
}),
|
|
!isServer &&
|
|
conformanceConfig.GranularChunksConformanceCheck.enabled &&
|
|
new GranularChunksConformanceCheck(
|
|
splitChunksConfigs.prodGranular
|
|
),
|
|
].filter(Boolean),
|
|
}),
|
|
new WellKnownErrorsPlugin(),
|
|
].filter((Boolean as any) as ExcludesFalse),
|
|
}
|
|
|
|
// Support tsconfig and jsconfig baseUrl
|
|
if (resolvedBaseUrl) {
|
|
webpackConfig.resolve?.modules?.push(resolvedBaseUrl)
|
|
}
|
|
|
|
if (jsConfig?.compilerOptions?.paths && resolvedBaseUrl) {
|
|
webpackConfig.resolve?.plugins?.unshift(
|
|
new JsConfigPathsPlugin(jsConfig.compilerOptions.paths, resolvedBaseUrl)
|
|
)
|
|
}
|
|
|
|
if (isWebpack5) {
|
|
// On by default:
|
|
delete webpackConfig.output?.futureEmitAssets
|
|
// No longer polyfills Node.js modules:
|
|
if (webpackConfig.node) delete webpackConfig.node.setImmediate
|
|
}
|
|
|
|
webpackConfig = await buildConfiguration(webpackConfig, {
|
|
rootDirectory: dir,
|
|
customAppFile,
|
|
isDevelopment: dev,
|
|
isServer,
|
|
assetPrefix: config.assetPrefix || '',
|
|
sassOptions: config.sassOptions,
|
|
productionBrowserSourceMaps,
|
|
})
|
|
|
|
let originalDevtool = webpackConfig.devtool
|
|
if (typeof config.webpack === 'function') {
|
|
webpackConfig = config.webpack(webpackConfig, {
|
|
dir,
|
|
dev,
|
|
isServer,
|
|
buildId,
|
|
config,
|
|
defaultLoaders,
|
|
totalPages,
|
|
webpack,
|
|
})
|
|
|
|
if (dev && originalDevtool !== webpackConfig.devtool) {
|
|
webpackConfig.devtool = originalDevtool
|
|
devtoolRevertWarning(originalDevtool)
|
|
}
|
|
|
|
if (typeof (webpackConfig as any).then === 'function') {
|
|
console.warn(
|
|
'> Promise returned in next config. https://err.sh/vercel/next.js/promise-in-next-config'
|
|
)
|
|
}
|
|
}
|
|
|
|
// Backwards compat with webpack-dev-middleware options object
|
|
if (typeof config.webpackDevMiddleware === 'function') {
|
|
const options = config.webpackDevMiddleware({
|
|
watchOptions: webpackConfig.watchOptions,
|
|
})
|
|
if (options.watchOptions) {
|
|
webpackConfig.watchOptions = options.watchOptions
|
|
}
|
|
}
|
|
|
|
function canMatchCss(rule: webpack.RuleSetCondition | undefined): boolean {
|
|
if (!rule) {
|
|
return false
|
|
}
|
|
|
|
const fileNames = [
|
|
'/tmp/test.css',
|
|
'/tmp/test.scss',
|
|
'/tmp/test.sass',
|
|
'/tmp/test.less',
|
|
'/tmp/test.styl',
|
|
]
|
|
|
|
if (rule instanceof RegExp && fileNames.some((input) => rule.test(input))) {
|
|
return true
|
|
}
|
|
|
|
if (typeof rule === 'function') {
|
|
if (
|
|
fileNames.some((input) => {
|
|
try {
|
|
if (rule(input)) {
|
|
return true
|
|
}
|
|
} catch (_) {}
|
|
return false
|
|
})
|
|
) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
if (Array.isArray(rule) && rule.some(canMatchCss)) {
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
const hasUserCssConfig =
|
|
webpackConfig.module?.rules.some(
|
|
(rule) => canMatchCss(rule.test) || canMatchCss(rule.include)
|
|
) ?? false
|
|
|
|
if (hasUserCssConfig) {
|
|
// only show warning for one build
|
|
if (isServer) {
|
|
console.warn(
|
|
chalk.yellow.bold('Warning: ') +
|
|
chalk.bold(
|
|
'Built-in CSS support is being disabled due to custom CSS configuration being detected.\n'
|
|
) +
|
|
'See here for more info: https://err.sh/next.js/built-in-css-disabled\n'
|
|
)
|
|
}
|
|
|
|
if (webpackConfig.module?.rules.length) {
|
|
// Remove default CSS Loader
|
|
webpackConfig.module.rules = webpackConfig.module.rules.filter(
|
|
(r) =>
|
|
!(
|
|
typeof r.oneOf?.[0]?.options === 'object' &&
|
|
r.oneOf[0].options.__next_css_remove === true
|
|
)
|
|
)
|
|
}
|
|
if (webpackConfig.plugins?.length) {
|
|
// Disable CSS Extraction Plugin
|
|
webpackConfig.plugins = webpackConfig.plugins.filter(
|
|
(p) => (p as any).__next_css_remove !== true
|
|
)
|
|
}
|
|
if (webpackConfig.optimization?.minimizer?.length) {
|
|
// Disable CSS Minifier
|
|
webpackConfig.optimization.minimizer = webpackConfig.optimization.minimizer.filter(
|
|
(e) => (e as any).__next_css_remove !== true
|
|
)
|
|
}
|
|
} else {
|
|
await __overrideCssConfiguration(dir, !dev, webpackConfig)
|
|
}
|
|
|
|
// check if using @zeit/next-typescript and show warning
|
|
if (
|
|
isServer &&
|
|
webpackConfig.module &&
|
|
Array.isArray(webpackConfig.module.rules)
|
|
) {
|
|
let foundTsRule = false
|
|
|
|
webpackConfig.module.rules = webpackConfig.module.rules.filter(
|
|
(rule): boolean => {
|
|
if (!(rule.test instanceof RegExp)) return true
|
|
if ('noop.ts'.match(rule.test) && !'noop.js'.match(rule.test)) {
|
|
// remove if it matches @zeit/next-typescript
|
|
foundTsRule = rule.use === defaultLoaders.babel
|
|
return !foundTsRule
|
|
}
|
|
return true
|
|
}
|
|
)
|
|
|
|
if (foundTsRule) {
|
|
console.warn(
|
|
'\n@zeit/next-typescript is no longer needed since Next.js has built-in support for TypeScript now. Please remove it from your next.config.js and your .babelrc\n'
|
|
)
|
|
}
|
|
}
|
|
|
|
// Patch `@zeit/next-sass`, `@zeit/next-less`, `@zeit/next-stylus` for compatibility
|
|
if (webpackConfig.module && Array.isArray(webpackConfig.module.rules)) {
|
|
;[].forEach.call(webpackConfig.module.rules, function (
|
|
rule: webpack.RuleSetRule
|
|
) {
|
|
if (!(rule.test instanceof RegExp && Array.isArray(rule.use))) {
|
|
return
|
|
}
|
|
|
|
const isSass =
|
|
rule.test.source === '\\.scss$' || rule.test.source === '\\.sass$'
|
|
const isLess = rule.test.source === '\\.less$'
|
|
const isCss = rule.test.source === '\\.css$'
|
|
const isStylus = rule.test.source === '\\.styl$'
|
|
|
|
// Check if the rule we're iterating over applies to Sass, Less, or CSS
|
|
if (!(isSass || isLess || isCss || isStylus)) {
|
|
return
|
|
}
|
|
|
|
;[].forEach.call(rule.use, function (use: webpack.RuleSetUseItem) {
|
|
if (
|
|
!(
|
|
use &&
|
|
typeof use === 'object' &&
|
|
// Identify use statements only pertaining to `css-loader`
|
|
(use.loader === 'css-loader' ||
|
|
use.loader === 'css-loader/locals') &&
|
|
use.options &&
|
|
typeof use.options === 'object' &&
|
|
// The `minimize` property is a good heuristic that we need to
|
|
// perform this hack. The `minimize` property was only valid on
|
|
// old `css-loader` versions. Custom setups (that aren't next-sass,
|
|
// next-less or next-stylus) likely have the newer version.
|
|
// We still handle this gracefully below.
|
|
(Object.prototype.hasOwnProperty.call(use.options, 'minimize') ||
|
|
Object.prototype.hasOwnProperty.call(
|
|
use.options,
|
|
'exportOnlyLocals'
|
|
))
|
|
)
|
|
) {
|
|
return
|
|
}
|
|
|
|
// Try to monkey patch within a try-catch. We shouldn't fail the build
|
|
// if we cannot pull this off.
|
|
// The user may not even be using the `next-sass` or `next-less` or
|
|
// `next-stylus` plugins.
|
|
// If it does work, great!
|
|
try {
|
|
// Resolve the version of `@zeit/next-css` as depended on by the Sass,
|
|
// Less or Stylus plugin.
|
|
const correctNextCss = resolveRequest(
|
|
'@zeit/next-css',
|
|
isCss
|
|
? // Resolve `@zeit/next-css` from the base directory
|
|
`${dir}/`
|
|
: // Else, resolve it from the specific plugins
|
|
require.resolve(
|
|
isSass
|
|
? '@zeit/next-sass'
|
|
: isLess
|
|
? '@zeit/next-less'
|
|
: isStylus
|
|
? '@zeit/next-stylus'
|
|
: 'next'
|
|
)
|
|
)
|
|
|
|
// If we found `@zeit/next-css` ...
|
|
if (correctNextCss) {
|
|
// ... resolve the version of `css-loader` shipped with that
|
|
// package instead of whichever was hoisted highest in your
|
|
// `node_modules` tree.
|
|
const correctCssLoader = resolveRequest(use.loader, correctNextCss)
|
|
if (correctCssLoader) {
|
|
// We saved the user from a failed build!
|
|
use.loader = correctCssLoader
|
|
}
|
|
}
|
|
} catch (_) {
|
|
// The error is not required to be handled.
|
|
}
|
|
})
|
|
})
|
|
}
|
|
|
|
// Backwards compat for `main.js` entry key
|
|
const originalEntry: any = webpackConfig.entry
|
|
if (typeof originalEntry !== 'undefined') {
|
|
webpackConfig.entry = async () => {
|
|
const entry: WebpackEntrypoints =
|
|
typeof originalEntry === 'function'
|
|
? await originalEntry()
|
|
: originalEntry
|
|
// Server compilation doesn't have main.js
|
|
if (clientEntries && entry['main.js'] && entry['main.js'].length > 0) {
|
|
const originalFile = clientEntries[CLIENT_STATIC_FILES_RUNTIME_MAIN]
|
|
entry[CLIENT_STATIC_FILES_RUNTIME_MAIN] = [
|
|
...entry['main.js'],
|
|
originalFile,
|
|
]
|
|
}
|
|
delete entry['main.js']
|
|
|
|
return entry
|
|
}
|
|
}
|
|
|
|
if (!dev) {
|
|
// entry is always a function
|
|
webpackConfig.entry = await (webpackConfig.entry as webpack.EntryFunc)()
|
|
}
|
|
|
|
return webpackConfig
|
|
}
|