783 lines
25 KiB
TypeScript
783 lines
25 KiB
TypeScript
import ForkTsCheckerWebpackPlugin from 'fork-ts-checker-webpack-plugin'
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import {
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CLIENT_STATIC_FILES_RUNTIME_MAIN,
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CLIENT_STATIC_FILES_RUNTIME_WEBPACK,
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REACT_LOADABLE_MANIFEST,
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SERVER_DIRECTORY,
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SERVERLESS_DIRECTORY,
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} from 'next-server/constants'
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import resolve from 'next/dist/compiled/resolve/index.js'
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import path from 'path'
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import crypto from 'crypto'
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import webpack 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 { WebpackEntrypoints } from './entries'
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import { AllModulesIdentifiedPlugin } from './webpack/plugins/all-modules-identified-plugin'
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import BuildManifestPlugin from './webpack/plugins/build-manifest-plugin'
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import { ChunkGraphPlugin } from './webpack/plugins/chunk-graph-plugin'
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import ChunkNamesPlugin from './webpack/plugins/chunk-names-plugin'
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import { importAutoDllPlugin } from './webpack/plugins/dll-import'
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import { HashedChunkIdsPlugin } from './webpack/plugins/hashed-chunk-ids-plugin'
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import { DropClientPage } from './webpack/plugins/next-drop-client-page-plugin'
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import NextEsmPlugin from './webpack/plugins/next-esm-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 { ReactLoadablePlugin } from './webpack/plugins/react-loadable-plugin'
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import { ServerlessPlugin } from './webpack/plugins/serverless-plugin'
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import { SharedRuntimePlugin } from './webpack/plugins/shared-runtime-plugin'
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import { TerserPlugin } from './webpack/plugins/terser-webpack-plugin/src/index'
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type ExcludesFalse = <T>(x: T | false) => x is T
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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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export default async function getBaseWebpackConfig(
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dir: string,
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{
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dev = false,
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isServer = false,
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buildId,
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config,
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target = 'server',
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entrypoints,
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selectivePageBuilding = false,
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}: {
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dev?: boolean
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isServer?: boolean
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buildId: string
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config: any
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target?: string
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entrypoints: WebpackEntrypoints
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selectivePageBuilding?: boolean
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}
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): Promise<webpack.Configuration> {
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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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cwd: dir,
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cache: !selectivePageBuilding,
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asyncToPromises: config.experimental.asyncToPromises,
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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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// 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'
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// 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(
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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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}
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: undefined
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let typeScriptPath
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try {
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typeScriptPath = resolve.sync('typescript', { basedir: dir })
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} catch (_) {}
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const tsConfigPath = path.join(dir, 'tsconfig.json')
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const useTypeScript = Boolean(
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typeScriptPath && (await fileExists(tsConfigPath))
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)
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const resolveConfig = {
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// Disable .mjs for node_modules bundling
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extensions: isServer
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? [
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...(useTypeScript ? ['.tsx', '.ts'] : []),
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'.js',
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'.mjs',
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'.jsx',
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'.json',
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'.wasm',
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]
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: [
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...(useTypeScript ? ['.tsx', '.ts'] : []),
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'.mjs',
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'.js',
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'.jsx',
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'.json',
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'.wasm',
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],
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modules: [
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'node_modules',
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...nodePathList, // Support for NODE_PATH environment variable
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],
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alias: {
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// These aliases make sure the wrapper module is not included in the bundles
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// Which makes bundles slightly smaller, but also skips parsing a module that we know will result in this alias
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'next/head': 'next-server/dist/lib/head.js',
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'next/router': 'next/dist/client/router.js',
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'next/config': 'next-server/dist/lib/runtime-config.js',
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'next/dynamic': 'next-server/dist/lib/dynamic.js',
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next: NEXT_PROJECT_ROOT,
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[PAGES_DIR_ALIAS]: path.join(dir, 'pages'),
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[DOT_NEXT_ALIAS]: distDir,
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},
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mainFields: isServer ? ['main', 'module'] : ['browser', 'module', 'main'],
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}
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const webpackMode = dev ? 'development' : 'production'
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const terserPluginConfig = {
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parallel: true,
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sourceMap: false,
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cache: !selectivePageBuilding,
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cpus: config.experimental.cpus,
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distDir: distDir,
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}
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const terserOptions = {
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parse: {
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ecma: 8,
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},
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compress: {
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ecma: 5,
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warnings: false,
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// The following two options are known to break valid JavaScript code
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comparisons: false,
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inline: 2, // https://github.com/zeit/next.js/issues/7178#issuecomment-493048965
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},
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mangle: { safari10: true },
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output: {
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ecma: 5,
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safari10: true,
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comments: false,
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// Fixes usage of Emoji and certain Regex
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ascii_only: true,
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},
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}
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const devtool = dev ? 'cheap-module-source-map' : false
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// Contains various versions of the Webpack SplitChunksPlugin used in different build types
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const splitChunksConfigs: {
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[propName: string]: webpack.Options.SplitChunksOptions
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} = {
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dev: {
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cacheGroups: {
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default: false,
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vendors: false,
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},
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},
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selective: {
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cacheGroups: {
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default: false,
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vendors: false,
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react: {
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name: 'commons',
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chunks: 'all',
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test: /[\\/]node_modules[\\/](react|react-dom|scheduler)[\\/]/,
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},
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},
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},
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prod: {
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chunks: 'all',
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cacheGroups: {
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default: false,
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vendors: false,
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commons: {
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name: 'commons',
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chunks: 'all',
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minChunks: totalPages > 2 ? totalPages * 0.5 : 2,
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},
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react: {
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name: 'commons',
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chunks: 'all',
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test: /[\\/]node_modules[\\/](react|react-dom|scheduler)[\\/]/,
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},
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},
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},
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prodGranular: {
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chunks: 'all',
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cacheGroups: {
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default: false,
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vendors: false,
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framework: {
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name: 'framework',
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chunks: 'all',
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test: /[\\/]node_modules[\\/](react|react-dom|scheduler|prop-types)[\\/]/,
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priority: 40,
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},
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lib: {
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test(module: { size: Function; identifier: Function }): boolean {
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return (
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module.size() > 160000 &&
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/node_modules[/\\]/.test(module.identifier())
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)
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},
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name(module: { identifier: Function; rawRequest: string }): string {
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const rawRequest =
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module.rawRequest &&
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module.rawRequest.replace(/^@(\w+)[/\\]/, '$1-')
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if (rawRequest) return rawRequest
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const identifier = module.identifier()
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const trimmedIdentifier = /(?:^|[/\\])node_modules[/\\](.*)/.exec(
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identifier
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)
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const processedIdentifier =
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trimmedIdentifier &&
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trimmedIdentifier[1].replace(/^@(\w+)[/\\]/, '$1-')
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return processedIdentifier || identifier
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},
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priority: 30,
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minChunks: 1,
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reuseExistingChunk: true,
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},
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commons: {
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name: 'commons',
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chunks: 'all',
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minChunks: totalPages,
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priority: 20,
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},
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shared: {
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name(module, chunks) {
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return crypto
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.createHash('sha1')
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.update(
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chunks.reduce(
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(acc: string, chunk: webpack.compilation.Chunk) => {
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return acc + chunk.name
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},
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''
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)
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)
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.digest('base64')
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.replace(/\//g, '')
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},
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priority: 10,
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minChunks: 2,
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reuseExistingChunk: true,
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},
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},
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maxInitialRequests: 20,
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},
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}
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// Select appropriate SplitChunksPlugin config for this build
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let splitChunksConfig: webpack.Options.SplitChunksOptions
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if (dev) {
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splitChunksConfig = splitChunksConfigs.dev
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} else if (selectivePageBuilding) {
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splitChunksConfig = splitChunksConfigs.selective
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} else {
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splitChunksConfig = config.experimental.granularChunks
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? splitChunksConfigs.prodGranular
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: splitChunksConfigs.prod
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}
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const crossOrigin =
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!config.crossOrigin && config.experimental.modern
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? 'anonymous'
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: config.crossOrigin
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let webpackConfig: webpack.Configuration = {
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devtool,
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mode: webpackMode,
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name: isServer ? 'server' : 'client',
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target: isServer ? 'node' : 'web',
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externals: !isServer
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? undefined
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: !isServerless
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? [
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(context, request, callback) => {
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const notExternalModules = [
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'next/app',
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'next/document',
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'next/link',
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'next/error',
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'string-hash',
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'next/constants',
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]
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if (notExternalModules.indexOf(request) !== -1) {
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return callback()
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}
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resolve(
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request,
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{ basedir: dir, preserveSymlinks: true },
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(err, res) => {
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if (err) {
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return callback()
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}
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if (!res) {
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return callback()
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}
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// Default pages have to be transpiled
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if (
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res.match(/next[/\\]dist[/\\]/) ||
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res.match(/node_modules[/\\]@babel[/\\]runtime[/\\]/) ||
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res.match(/node_modules[/\\]@babel[/\\]runtime-corejs2[/\\]/)
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) {
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return callback()
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}
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// Webpack itself has to be compiled because it doesn't always use module relative paths
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if (
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res.match(/node_modules[/\\]webpack/) ||
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res.match(/node_modules[/\\]css-loader/)
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) {
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return callback()
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}
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if (res.match(/node_modules[/\\].*\.js$/)) {
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return callback(undefined, `commonjs ${request}`)
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}
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callback()
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}
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)
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},
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]
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: [
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// When the 'serverless' target is used all node_modules will be compiled into the output bundles
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// So that the 'serverless' bundles have 0 runtime dependencies
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'@ampproject/toolbox-optimizer', // except this one
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(context, request, callback) => {
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if (
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request === 'react-ssr-prepass' &&
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!config.experimental.ampBindInitData
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) {
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// if it's the Next.js' require mark it as external
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// since it's not used
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if (
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context.replace(/\\/g, '/').includes('next-server/dist/server')
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) {
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return callback(undefined, `commonjs ${request}`)
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}
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}
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return callback()
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},
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],
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optimization: Object.assign(
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{
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checkWasmTypes: false,
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nodeEnv: false,
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},
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isServer
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? {
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splitChunks: false,
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minimize: false,
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}
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: {
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runtimeChunk: selectivePageBuilding
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? false
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: {
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name: CLIENT_STATIC_FILES_RUNTIME_WEBPACK,
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},
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splitChunks: splitChunksConfig,
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minimize: !dev,
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minimizer: !dev
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? [
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new TerserPlugin({
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...terserPluginConfig,
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terserOptions: {
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...terserOptions,
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// Disable compress when using terser loader
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...(selectivePageBuilding ||
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config.experimental.terserLoader
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? { compress: false }
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: undefined),
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},
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}),
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]
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: undefined,
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},
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selectivePageBuilding
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? {
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providedExports: false,
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usedExports: false,
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concatenateModules: false,
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}
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: undefined
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),
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recordsPath: selectivePageBuilding
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? undefined
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: path.join(outputPath, 'records.json'),
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context: dir,
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// Kept as function to be backwards compatible
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entry: async () => {
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return {
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...(clientEntries ? clientEntries : {}),
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...entrypoints,
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}
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},
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output: {
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path: outputPath,
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filename: ({ chunk }: { chunk: { name: string } }) => {
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// Use `[name]-[contenthash].js` in production
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if (
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!dev &&
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(chunk.name === CLIENT_STATIC_FILES_RUNTIME_MAIN ||
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chunk.name === CLIENT_STATIC_FILES_RUNTIME_WEBPACK)
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) {
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return chunk.name.replace(/\.js$/, '-[contenthash].js')
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}
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return '[name]'
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},
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libraryTarget: isServer ? 'commonjs2' : 'var',
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hotUpdateChunkFilename: 'static/webpack/[id].[hash].hot-update.js',
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hotUpdateMainFilename: 'static/webpack/[hash].hot-update.json',
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// This saves chunks with the name given via `import()`
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chunkFilename: isServer
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? `${dev ? '[name]' : '[name].[contenthash]'}.js`
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: `static/chunks/${dev ? '[name]' : '[name].[contenthash]'}.js`,
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strictModuleExceptionHandling: true,
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crossOriginLoading: crossOrigin,
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futureEmitAssets: !dev,
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webassemblyModuleFilename: 'static/wasm/[modulehash].wasm',
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},
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performance: false,
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resolve: resolveConfig,
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resolveLoader: {
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modules: [
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path.join(__dirname, 'webpack', 'loaders'), // The loaders Next.js provides
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|
'node_modules',
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...nodePathList, // Support for NODE_PATH environment variable
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],
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},
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|
// @ts-ignore this is filtered
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|
module: {
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strictExportPresence: true,
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rules: [
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(selectivePageBuilding || config.experimental.terserLoader) &&
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!isServer && {
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test: /\.(js|mjs|jsx)$/,
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|
exclude: /\.min\.(js|mjs|jsx)$/,
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|
use: {
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loader: 'next-minify-loader',
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|
options: {
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terserOptions: {
|
|
...terserOptions,
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mangle: false,
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},
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},
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},
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},
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|
config.experimental.ampBindInitData &&
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|
!isServer && {
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|
test: /\.(tsx|ts|js|mjs|jsx)$/,
|
|
include: [path.join(dir, 'data')],
|
|
use: 'next-data-loader',
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|
},
|
|
{
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|
test: /\.(tsx|ts|js|mjs|jsx)$/,
|
|
include: [
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dir,
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/next-server[\\/]dist[\\/]lib/,
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|
/next[\\/]dist[\\/]client/,
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/next[\\/]dist[\\/]pages/,
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/[\\/](strip-ansi|ansi-regex)[\\/]/,
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],
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exclude: (path: string) => {
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if (
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/next-server[\\/]dist[\\/]lib/.test(path) ||
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/next[\\/]dist[\\/]client/.test(path) ||
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/next[\\/]dist[\\/]pages/.test(path) ||
|
|
/[\\/](strip-ansi|ansi-regex)[\\/]/.test(path)
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) {
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return false
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}
|
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|
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return /node_modules/.test(path)
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},
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|
use: defaultLoaders.babel,
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|
},
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|
].filter(Boolean),
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},
|
|
plugins: [
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|
// This plugin makes sure `output.filename` is used for entry chunks
|
|
new ChunkNamesPlugin(),
|
|
new webpack.DefinePlugin({
|
|
...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/zeit/next.js/env-key-not-allowed`
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|
)
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}
|
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|
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return {
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...acc,
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|
[`process.env.${key}`]: JSON.stringify(config.env[key]),
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}
|
|
}, {}),
|
|
'process.env.NODE_ENV': JSON.stringify(webpackMode),
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|
'process.crossOrigin': JSON.stringify(crossOrigin),
|
|
'process.browser': JSON.stringify(!isServer),
|
|
'process.env.__NEXT_EXPERIMENTAL_SELECTIVEPAGEBUILDING': JSON.stringify(
|
|
selectivePageBuilding
|
|
),
|
|
// 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_EXPORT_TRAILING_SLASH': JSON.stringify(
|
|
config.exportTrailingSlash
|
|
),
|
|
'process.env.__NEXT_MODERN_BUILD': config.experimental.modern && !dev,
|
|
'process.env.__NEXT_GRANULAR_CHUNKS':
|
|
config.experimental.granularChunks && !selectivePageBuilding && !dev,
|
|
...(isServer
|
|
? {
|
|
// Allow browser-only code to be eliminated
|
|
'typeof window': JSON.stringify('undefined'),
|
|
// 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),
|
|
}
|
|
: {
|
|
// Allow server-only code to be eliminated
|
|
'typeof window': JSON.stringify('object'),
|
|
}),
|
|
}),
|
|
!isServer &&
|
|
new ReactLoadablePlugin({
|
|
filename: REACT_LOADABLE_MANIFEST,
|
|
}),
|
|
!isServer && new DropClientPage(),
|
|
new ChunkGraphPlugin(buildId, {
|
|
dir,
|
|
distDir,
|
|
isServer,
|
|
}),
|
|
...(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 {
|
|
UnlinkRemovedPagesPlugin,
|
|
} = require('./webpack/plugins/unlink-removed-pages-plugin')
|
|
const devPlugins = [
|
|
new UnlinkRemovedPagesPlugin(),
|
|
new webpack.NoEmitOnErrorsPlugin(),
|
|
new NextJsRequireCacheHotReloader(),
|
|
]
|
|
|
|
if (!isServer) {
|
|
const AutoDllPlugin = importAutoDllPlugin({ distDir })
|
|
devPlugins.push(
|
|
new AutoDllPlugin({
|
|
filename: '[name]_[hash].js',
|
|
path: './static/development/dll',
|
|
context: dir,
|
|
entry: {
|
|
dll: ['react', 'react-dom'],
|
|
},
|
|
config: {
|
|
devtool,
|
|
mode: webpackMode,
|
|
resolve: resolveConfig,
|
|
},
|
|
})
|
|
)
|
|
devPlugins.push(new webpack.HotModuleReplacementPlugin())
|
|
}
|
|
|
|
return devPlugins
|
|
})()
|
|
: []),
|
|
!dev && new webpack.HashedModuleIdsPlugin(),
|
|
// This must come after HashedModuleIdsPlugin (it sets any modules that
|
|
// were missed by HashedModuleIdsPlugin)
|
|
!dev && selectivePageBuilding && new AllModulesIdentifiedPlugin(dir),
|
|
// This sets chunk ids to be hashed versions of their names to reduce
|
|
// bundle churn
|
|
!dev && selectivePageBuilding && new HashedChunkIdsPlugin(buildId),
|
|
// On the client we want to share the same runtime cache
|
|
!isServer && selectivePageBuilding && new SharedRuntimePlugin(),
|
|
!dev &&
|
|
new webpack.IgnorePlugin({
|
|
checkResource: (resource: string) => {
|
|
return /react-is/.test(resource)
|
|
},
|
|
checkContext: (context: string) => {
|
|
return (
|
|
/next-server[\\/]dist[\\/]/.test(context) ||
|
|
/next[\\/]dist[\\/]/.test(context)
|
|
)
|
|
},
|
|
}),
|
|
isLikeServerless &&
|
|
new ServerlessPlugin(buildId, {
|
|
isServer,
|
|
isFlyingShuttle: selectivePageBuilding,
|
|
isTrace: isServerlessTrace,
|
|
}),
|
|
isServer && new PagesManifestPlugin(isLikeServerless),
|
|
target === 'server' &&
|
|
isServer &&
|
|
new NextJsSSRModuleCachePlugin({ outputPath }),
|
|
isServer && new NextJsSsrImportPlugin(),
|
|
!isServer &&
|
|
new BuildManifestPlugin({
|
|
buildId,
|
|
clientManifest: config.experimental.granularChunks,
|
|
modern: config.experimental.modern,
|
|
}),
|
|
config.experimental.profiling &&
|
|
new webpack.debug.ProfilingPlugin({
|
|
outputPath: path.join(
|
|
distDir,
|
|
`profile-events-${isServer ? 'server' : 'client'}.json`
|
|
),
|
|
}),
|
|
!isServer &&
|
|
useTypeScript &&
|
|
new ForkTsCheckerWebpackPlugin({
|
|
typescript: typeScriptPath,
|
|
async: dev,
|
|
useTypescriptIncrementalApi: true,
|
|
checkSyntacticErrors: true,
|
|
tsconfig: tsConfigPath,
|
|
reportFiles: ['**', '!**/__tests__/**', '!**/?(*.)(spec|test).*'],
|
|
compilerOptions: { isolatedModules: true, noEmit: true },
|
|
silent: true,
|
|
formatter: 'codeframe',
|
|
}),
|
|
config.experimental.modern &&
|
|
!isServer &&
|
|
!dev &&
|
|
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'),
|
|
}),
|
|
].filter((Boolean as any) as ExcludesFalse),
|
|
}
|
|
|
|
if (typeof config.webpack === 'function') {
|
|
webpackConfig = config.webpack(webpackConfig, {
|
|
dir,
|
|
dev,
|
|
isServer,
|
|
buildId,
|
|
config,
|
|
defaultLoaders,
|
|
totalPages,
|
|
webpack,
|
|
})
|
|
|
|
// @ts-ignore: Property 'then' does not exist on type 'Configuration'
|
|
if (typeof webpackConfig.then === 'function') {
|
|
console.warn(
|
|
'> Promise returned in next config. https://err.sh/zeit/next.js/promise-in-next-config.md'
|
|
)
|
|
}
|
|
}
|
|
|
|
// 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'
|
|
)
|
|
}
|
|
}
|
|
|
|
// 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) {
|
|
// @ts-ignore entry is always a function
|
|
webpackConfig.entry = await webpackConfig.entry()
|
|
}
|
|
|
|
return webpackConfig
|
|
}
|