mirror of
https://github.com/terribleplan/next.js.git
synced 2024-01-19 02:48:18 +00:00
242 lines
8.6 KiB
JavaScript
242 lines
8.6 KiB
JavaScript
// @flow
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import type {NextConfig} from '../server/config'
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import path, {sep} from 'path'
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import webpack from 'webpack'
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import resolve from 'resolve'
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import UglifyJSPlugin from 'uglifyjs-webpack-plugin'
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import CaseSensitivePathPlugin from 'case-sensitive-paths-webpack-plugin'
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import WriteFilePlugin from 'write-file-webpack-plugin'
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import FriendlyErrorsWebpackPlugin from 'friendly-errors-webpack-plugin'
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import {getPages} from './webpack/utils'
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import PagesPlugin from './webpack/plugins/pages-plugin'
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import NextJsSsrImportPlugin from './webpack/plugins/nextjs-ssr-import'
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import DynamicChunksPlugin from './webpack/plugins/dynamic-chunks-plugin'
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import UnlinkFilePlugin from './webpack/plugins/unlink-file-plugin'
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import PagesManifestPlugin from './webpack/plugins/pages-manifest-plugin'
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import BuildManifestPlugin from './webpack/plugins/build-manifest-plugin'
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import {SERVER_DIRECTORY, NEXT_PROJECT_ROOT, NEXT_PROJECT_ROOT_NODE_MODULES, NEXT_PROJECT_ROOT_DIST, DEFAULT_PAGES_DIR} from '../lib/constants'
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function externalsConfig (dir, isServer) {
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const externals = []
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if (!isServer) {
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return externals
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}
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externals.push((context, request, callback) => {
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resolve(request, { basedir: dir, preserveSymlinks: true }, (err, res) => {
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if (err) {
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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 (res.match(/node_modules[/\\]next[/\\]dist[/\\]pages/)) {
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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 (res.match(/node_modules[/\\]webpack/)) {
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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(null, `commonjs ${request}`)
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}
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callback()
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})
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})
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return externals
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}
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type BaseConfigContext = {|
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dev: boolean,
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isServer: boolean,
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buildId: string,
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config: NextConfig
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|}
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export default async function getBaseWebpackConfig (dir: string, {dev = false, isServer = false, buildId, config}: BaseConfigContext) {
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const defaultLoaders = {
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babel: {
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loader: 'next-babel-loader',
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options: {dev, isServer}
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},
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hotSelfAccept: {
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loader: 'hot-self-accept-loader',
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options: {
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include: [
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path.join(dir, 'pages')
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],
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// All pages are javascript files. So we apply hot-self-accept-loader here to facilitate hot reloading of pages.
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// This makes sure plugins just have to implement `pageExtensions` instead of also implementing the loader
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extensions: new RegExp(`\\.+(${config.pageExtensions.join('|')})$`)
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}
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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 pagesEntries = await getPages(dir, {nextPagesDir: DEFAULT_PAGES_DIR, dev, isServer, pageExtensions: config.pageExtensions.join('|')})
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const totalPages = Object.keys(pagesEntries).length
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const clientEntries = !isServer ? {
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'main.js': [
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dev && !isServer && path.join(NEXT_PROJECT_ROOT_DIST, 'client', 'webpack-hot-middleware-client'),
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dev && !isServer && path.join(NEXT_PROJECT_ROOT_DIST, 'client', 'on-demand-entries-client'),
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path.join(NEXT_PROJECT_ROOT_DIST, 'client', (dev ? `next-dev` : 'next'))
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].filter(Boolean)
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} : {}
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let webpackConfig = {
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devtool: dev ? 'cheap-module-source-map' : false,
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name: isServer ? 'server' : 'client',
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cache: true,
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target: isServer ? 'node' : 'web',
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externals: externalsConfig(dir, isServer),
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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,
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// Only _error and _document when in development. The rest is handled by on-demand-entries
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...pagesEntries
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}
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},
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output: {
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path: path.join(dir, config.distDir, isServer ? SERVER_DIRECTORY : ''),
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filename: '[name]',
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libraryTarget: 'commonjs2',
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// This saves chunks with the name given via require.ensure()
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chunkFilename: dev ? '[name].js' : '[name]-[chunkhash].js',
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strictModuleExceptionHandling: true
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},
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performance: { hints: false },
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resolve: {
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extensions: ['.js', '.jsx', '.json'],
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modules: [
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NEXT_PROJECT_ROOT_NODE_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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next: NEXT_PROJECT_ROOT
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}
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},
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resolveLoader: {
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modules: [
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NEXT_PROJECT_ROOT_NODE_MODULES,
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'node_modules',
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path.join(__dirname, 'webpack', 'loaders'), // The loaders Next.js provides
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...nodePathList // Support for NODE_PATH environment variable
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]
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},
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module: {
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rules: [
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dev && !isServer && {
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test: /\.(js|jsx)$/,
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include: defaultLoaders.hotSelfAccept.options.include,
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use: defaultLoaders.hotSelfAccept
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},
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{
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test: /\.(js|jsx)$/,
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include: [dir],
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exclude: /node_modules/,
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use: defaultLoaders.babel
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}
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].filter(Boolean)
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},
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plugins: [
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new webpack.IgnorePlugin(/(precomputed)/, /node_modules.+(elliptic)/),
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dev && new webpack.NoEmitOnErrorsPlugin(),
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dev && !isServer && new FriendlyErrorsWebpackPlugin(),
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dev && new webpack.NamedModulesPlugin(),
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dev && !isServer && new webpack.HotModuleReplacementPlugin(), // Hot module replacement
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dev && new UnlinkFilePlugin(),
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dev && new CaseSensitivePathPlugin(), // Since on macOS the filesystem is case-insensitive this will make sure your path are case-sensitive
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dev && new WriteFilePlugin({
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exitOnErrors: false,
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log: false,
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// required not to cache removed files
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useHashIndex: false
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}),
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!isServer && !dev && new UglifyJSPlugin({
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parallel: true,
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sourceMap: false,
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uglifyOptions: {
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mangle: {
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safari10: true
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}
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}
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}),
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new webpack.DefinePlugin({
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'process.env.NODE_ENV': JSON.stringify(dev ? 'development' : 'production')
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}),
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!dev && new webpack.optimize.ModuleConcatenationPlugin(),
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isServer && new PagesManifestPlugin(),
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!isServer && new BuildManifestPlugin(),
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!isServer && new PagesPlugin(),
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!isServer && new DynamicChunksPlugin(),
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isServer && new NextJsSsrImportPlugin(),
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// In dev mode, we don't move anything to the commons bundle.
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// In production we move common modules into the existing main.js bundle
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!isServer && new webpack.optimize.CommonsChunkPlugin({
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name: 'main.js',
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filename: dev ? 'static/commons/main.js' : 'static/commons/main-[chunkhash].js',
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minChunks (module, count) {
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// React and React DOM are used everywhere in Next.js. So they should always be common. Even in development mode, to speed up compilation.
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if (module.resource && module.resource.includes(`${sep}react-dom${sep}`) && count >= 0) {
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return true
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}
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if (module.resource && module.resource.includes(`${sep}react${sep}`) && count >= 0) {
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return true
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}
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// In the dev we use on-demand-entries.
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// So, it makes no sense to use commonChunks based on the minChunks count.
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// Instead, we move all the code in node_modules into each of the pages.
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if (dev) {
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return false
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}
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// Check if the module is used in the _app.js bundle
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// Because _app.js is used on every page we don't want to
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// duplicate them in other bundles.
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const chunks = module.getChunks()
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const inAppBundle = chunks.some(chunk => chunk.entryModule
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? chunk.entryModule.name === 'bundles/pages/_app.js'
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: null
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)
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if (inAppBundle && chunks.length > 1) {
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return true
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}
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// If there are one or two pages, only move modules to common if they are
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// used in all of the pages. Otherwise, move modules used in at-least
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// 1/2 of the total pages into commons.
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if (totalPages <= 2) {
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return count >= totalPages
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}
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return count >= totalPages * 0.5
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}
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}),
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// We use a manifest file in development to speed up HMR
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dev && !isServer && new webpack.optimize.CommonsChunkPlugin({
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name: 'manifest.js',
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filename: dev ? 'static/commons/manifest.js' : 'static/commons/manifest-[chunkhash].js'
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})
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].filter(Boolean)
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}
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if (typeof config.webpack === 'function') {
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webpackConfig = config.webpack(webpackConfig, {dir, dev, isServer, buildId, config, defaultLoaders, totalPages})
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}
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return webpackConfig
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}
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