mirror of https://github.com/embarklabs/embark.git
541 lines
22 KiB
JavaScript
541 lines
22 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const webpack = require('webpack');
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const resolve = require('resolve');
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const PnpWebpackPlugin = require('pnp-webpack-plugin');
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const HtmlWebpackPlugin = require('html-webpack-plugin');
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const InlineChunkHtmlPlugin = require('react-dev-utils/InlineChunkHtmlPlugin');
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const TerserPlugin = require('terser-webpack-plugin');
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const MiniCssExtractPlugin = require('mini-css-extract-plugin');
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const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
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const safePostCssParser = require('postcss-safe-parser');
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const ManifestPlugin = require('webpack-manifest-plugin');
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const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
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const WorkboxWebpackPlugin = require('workbox-webpack-plugin');
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const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
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const getCSSModuleLocalIdent = require('react-dev-utils/getCSSModuleLocalIdent');
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const paths = require('./paths');
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const getClientEnvironment = require('./env');
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const ModuleNotFoundPlugin = require('react-dev-utils/ModuleNotFoundPlugin');
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const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin-alt');
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const typescriptFormatter = require('react-dev-utils/typescriptFormatter');
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const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
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// Webpack uses `publicPath` to determine where the app is being served from.
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// It requires a trailing slash, or the file assets will get an incorrect path.
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const publicPath = paths.servedPath;
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// Some apps do not use client-side routing with pushState.
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// For these, "homepage" can be set to "." to enable relative asset paths.
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const shouldUseRelativeAssetPaths = publicPath === './';
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// Source maps are resource heavy and can cause out of memory issue for large source files.
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const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
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// Some apps do not need the benefits of saving a web request, so not inlining the chunk
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// makes for a smoother build process.
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const shouldInlineRuntimeChunk = process.env.INLINE_RUNTIME_CHUNK !== 'false';
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// `publicUrl` is just like `publicPath`, but we will provide it to our app
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// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
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// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
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const publicUrl = publicPath.slice(0, -1);
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// Get environment variables to inject into our app.
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const env = getClientEnvironment(publicUrl);
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// Assert this just to be safe.
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// Development builds of React are slow and not intended for production.
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if (env.stringified['process.env'].NODE_ENV !== '"production"') {
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throw new Error('Production builds must have NODE_ENV=production.');
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}
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// Check if TypeScript is setup
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const useTypeScript = fs.existsSync(paths.appTsConfig);
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// style files regexes
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const cssRegex = /\.css$/;
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const cssModuleRegex = /\.module\.css$/;
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const sassRegex = /\.(scss|sass)$/;
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const sassModuleRegex = /\.module\.(scss|sass)$/;
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// common function to get style loaders
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const getStyleLoaders = (cssOptions, preProcessor) => {
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const loaders = [
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{
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loader: MiniCssExtractPlugin.loader,
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options: Object.assign(
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{},
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shouldUseRelativeAssetPaths ? { publicPath: '../../' } : undefined
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),
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},
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{
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loader: require.resolve('css-loader'),
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options: cssOptions,
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},
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{
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// Options for PostCSS as we reference these options twice
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// Adds vendor prefixing based on your specified browser support in
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// package.json
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loader: require.resolve('postcss-loader'),
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options: {
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// Necessary for external CSS imports to work
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// https://github.com/facebook/create-react-app/issues/2677
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ident: 'postcss',
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plugins: () => [
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require('postcss-flexbugs-fixes'),
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require('postcss-preset-env')({
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autoprefixer: {
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flexbox: 'no-2009',
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},
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stage: 3,
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}),
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],
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sourceMap: shouldUseSourceMap,
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},
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},
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];
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if (preProcessor) {
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loaders.push({
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loader: require.resolve(preProcessor),
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options: {
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sourceMap: shouldUseSourceMap,
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},
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});
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}
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return loaders;
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};
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// This is the production configuration.
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// It compiles slowly and is focused on producing a fast and minimal bundle.
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// The development configuration is different and lives in a separate file.
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module.exports = {
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mode: 'production',
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// Don't attempt to continue if there are any errors.
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bail: true,
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// We generate sourcemaps in production. This is slow but gives good results.
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// You can exclude the *.map files from the build during deployment.
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devtool: shouldUseSourceMap ? 'source-map' : false,
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// In production, we only want to load the app code.
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entry: [paths.appIndexJs],
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output: {
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// The build folder.
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path: paths.appBuild,
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// Generated JS file names (with nested folders).
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// There will be one main bundle, and one file per asynchronous chunk.
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// We don't currently advertise code splitting but Webpack supports it.
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filename: 'static/js/[name].[chunkhash:8].js',
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chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
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// We inferred the "public path" (such as / or /my-project) from homepage.
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publicPath: publicPath,
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// Point sourcemap entries to original disk location (format as URL on Windows)
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devtoolModuleFilenameTemplate: info =>
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path
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.relative(paths.appSrc, info.absoluteResourcePath)
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.replace(/\\/g, '/'),
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},
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optimization: {
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minimizer: [
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new TerserPlugin({
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terserOptions: {
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parse: {
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// we want terser to parse ecma 8 code. However, we don't want it
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// to apply any minfication steps that turns valid ecma 5 code
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// into invalid ecma 5 code. This is why the 'compress' and 'output'
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// sections only apply transformations that are ecma 5 safe
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// https://github.com/facebook/create-react-app/pull/4234
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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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// Disabled because of an issue with Uglify breaking seemingly valid code:
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// https://github.com/facebook/create-react-app/issues/2376
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// Pending further investigation:
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// https://github.com/mishoo/UglifyJS2/issues/2011
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comparisons: false,
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// Disabled because of an issue with Terser breaking valid code:
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// https://github.com/facebook/create-react-app/issues/5250
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// Pending futher investigation:
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// https://github.com/terser-js/terser/issues/120
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inline: 2,
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},
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mangle: {
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safari10: true,
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},
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output: {
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ecma: 5,
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comments: false,
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// Turned on because emoji and regex is not minified properly using default
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// https://github.com/facebook/create-react-app/issues/2488
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ascii_only: true,
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},
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},
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// Use multi-process parallel running to improve the build speed
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// Default number of concurrent runs: os.cpus().length - 1
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parallel: true,
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// Enable file caching
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cache: true,
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sourceMap: shouldUseSourceMap,
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}),
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new OptimizeCSSAssetsPlugin({
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cssProcessorOptions: {
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parser: safePostCssParser,
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map: shouldUseSourceMap
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? {
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// `inline: false` forces the sourcemap to be output into a
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// separate file
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inline: false,
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// `annotation: true` appends the sourceMappingURL to the end of
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// the css file, helping the browser find the sourcemap
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annotation: true,
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}
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: false,
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},
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}),
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],
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// Automatically split vendor and commons
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// https://twitter.com/wSokra/status/969633336732905474
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// https://medium.com/webpack/webpack-4-code-splitting-chunk-graph-and-the-splitchunks-optimization-be739a861366
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splitChunks: {
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chunks: 'all',
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name: false,
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},
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// Keep the runtime chunk seperated to enable long term caching
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// https://twitter.com/wSokra/status/969679223278505985
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runtimeChunk: true,
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},
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resolve: {
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// This allows you to set a fallback for where Webpack should look for modules.
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// We placed these paths second because we want `node_modules` to "win"
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// if there are any conflicts. This matches Node resolution mechanism.
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// https://github.com/facebook/create-react-app/issues/253
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modules: ['node_modules'].concat(
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// It is guaranteed to exist because we tweak it in `env.js`
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process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
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),
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// These are the reasonable defaults supported by the Node ecosystem.
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// We also include JSX as a common component filename extension to support
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// some tools, although we do not recommend using it, see:
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// https://github.com/facebook/create-react-app/issues/290
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// `web` extension prefixes have been added for better support
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// for React Native Web.
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extensions: paths.moduleFileExtensions
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.map(ext => `.${ext}`)
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.filter(ext => useTypeScript || !ext.includes('ts')),
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alias: {
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// Support React Native Web
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// https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
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'react-native': 'react-native-web',
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},
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plugins: [
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// Adds support for installing with Plug'n'Play, leading to faster installs and adding
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// guards against forgotten dependencies and such.
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PnpWebpackPlugin,
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// Prevents users from importing files from outside of src/ (or node_modules/).
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// This often causes confusion because we only process files within src/ with babel.
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// To fix this, we prevent you from importing files out of src/ -- if you'd like to,
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// please link the files into your node_modules/ and let module-resolution kick in.
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// Make sure your source files are compiled, as they will not be processed in any way.
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new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
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],
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},
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resolveLoader: {
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plugins: [
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// Also related to Plug'n'Play, but this time it tells Webpack to load its loaders
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// from the current package.
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PnpWebpackPlugin.moduleLoader(module),
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],
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},
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module: {
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strictExportPresence: true,
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rules: [
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// Disable require.ensure as it's not a standard language feature.
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{ parser: { requireEnsure: false } },
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// First, run the linter.
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// It's important to do this before Babel processes the JS.
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{
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test: /\.(js|mjs|jsx)$/,
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enforce: 'pre',
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use: [
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{
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options: {
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formatter: require.resolve('react-dev-utils/eslintFormatter'),
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eslintPath: require.resolve('eslint'),
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},
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loader: require.resolve('eslint-loader'),
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},
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],
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include: paths.appSrc,
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},
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{
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// "oneOf" will traverse all following loaders until one will
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// match the requirements. When no loader matches it will fall
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// back to the "file" loader at the end of the loader list.
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oneOf: [
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// "url" loader works just like "file" loader but it also embeds
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// assets smaller than specified size as data URLs to avoid requests.
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{
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test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
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loader: require.resolve('url-loader'),
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options: {
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limit: 10000,
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name: 'static/media/[name].[hash:8].[ext]',
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},
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},
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// Process application JS with Babel.
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// The preset includes JSX, Flow, TypeScript and some ESnext features.
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{
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test: /\.(js|mjs|jsx|ts|tsx)$/,
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include: paths.appSrc,
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loader: require.resolve('babel-loader'),
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options: {
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customize: require.resolve(
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'babel-preset-react-app/webpack-overrides'
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),
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plugins: [
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[
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require.resolve('babel-plugin-named-asset-import'),
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{
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loaderMap: {
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svg: {
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ReactComponent: '@svgr/webpack?-prettier,-svgo![path]',
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},
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},
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},
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],
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],
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cacheDirectory: true,
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// Save disk space when time isn't as important
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cacheCompression: true,
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compact: true,
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},
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},
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// Process any JS outside of the app with Babel.
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// Unlike the application JS, we only compile the standard ES features.
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{
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test: /\.(js|mjs)$/,
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exclude: /@babel(?:\/|\\{1,2})runtime/,
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loader: require.resolve('babel-loader'),
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options: {
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babelrc: false,
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configFile: false,
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compact: false,
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presets: [
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[
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require.resolve('babel-preset-react-app/dependencies'),
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{ helpers: true },
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],
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],
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cacheDirectory: true,
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// Save disk space when time isn't as important
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cacheCompression: true,
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// If an error happens in a package, it's possible to be
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// because it was compiled. Thus, we don't want the browser
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// debugger to show the original code. Instead, the code
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// being evaluated would be much more helpful.
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sourceMaps: false,
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},
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},
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// "postcss" loader applies autoprefixer to our CSS.
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// "css" loader resolves paths in CSS and adds assets as dependencies.
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// `MiniCSSExtractPlugin` extracts styles into CSS
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// files. If you use code splitting, async bundles will have their own separate CSS chunk file.
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// By default we support CSS Modules with the extension .module.css
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{
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test: cssRegex,
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exclude: cssModuleRegex,
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loader: getStyleLoaders({
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importLoaders: 1,
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sourceMap: shouldUseSourceMap,
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}),
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|
// Don't consider CSS imports dead code even if the
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// containing package claims to have no side effects.
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// Remove this when webpack adds a warning or an error for this.
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// See https://github.com/webpack/webpack/issues/6571
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sideEffects: true,
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},
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// Adds support for CSS Modules (https://github.com/css-modules/css-modules)
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// using the extension .module.css
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{
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test: cssModuleRegex,
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loader: getStyleLoaders({
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importLoaders: 1,
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sourceMap: shouldUseSourceMap,
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modules: true,
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getLocalIdent: getCSSModuleLocalIdent,
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}),
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},
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// Opt-in support for SASS. The logic here is somewhat similar
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// as in the CSS routine, except that "sass-loader" runs first
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// to compile SASS files into CSS.
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// By default we support SASS Modules with the
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// extensions .module.scss or .module.sass
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{
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test: sassRegex,
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exclude: sassModuleRegex,
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loader: getStyleLoaders(
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{
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importLoaders: 2,
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sourceMap: shouldUseSourceMap,
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},
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'sass-loader'
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),
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// Don't consider CSS imports dead code even if the
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// containing package claims to have no side effects.
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// Remove this when webpack adds a warning or an error for this.
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// See https://github.com/webpack/webpack/issues/6571
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sideEffects: true,
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},
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// Adds support for CSS Modules, but using SASS
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// using the extension .module.scss or .module.sass
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{
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test: sassModuleRegex,
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loader: getStyleLoaders(
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{
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importLoaders: 2,
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sourceMap: shouldUseSourceMap,
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modules: true,
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getLocalIdent: getCSSModuleLocalIdent,
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},
|
|
'sass-loader'
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),
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},
|
|
// "file" loader makes sure assets end up in the `build` folder.
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|
// When you `import` an asset, you get its filename.
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|
// This loader doesn't use a "test" so it will catch all modules
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// that fall through the other loaders.
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{
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loader: require.resolve('file-loader'),
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// Exclude `js` files to keep "css" loader working as it injects
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// it's runtime that would otherwise be processed through "file" loader.
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// Also exclude `html` and `json` extensions so they get processed
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// by webpacks internal loaders.
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exclude: [/\.(js|mjs|jsx|ts|tsx)$/, /\.html$/, /\.json$/],
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options: {
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name: 'static/media/[name].[hash:8].[ext]',
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},
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},
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|
// ** STOP ** Are you adding a new loader?
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// Make sure to add the new loader(s) before the "file" loader.
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|
],
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},
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|
],
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},
|
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plugins: [
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// Generates an `index.html` file with the <script> injected.
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new HtmlWebpackPlugin({
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inject: true,
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template: paths.appHtml,
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|
minify: {
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|
removeComments: true,
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|
collapseWhitespace: true,
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removeRedundantAttributes: true,
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|
useShortDoctype: true,
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|
removeEmptyAttributes: true,
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|
removeStyleLinkTypeAttributes: true,
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|
keepClosingSlash: true,
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|
minifyJS: true,
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|
minifyCSS: true,
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|
minifyURLs: true,
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},
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}),
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|
// Inlines the webpack runtime script. This script is too small to warrant
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// a network request.
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shouldInlineRuntimeChunk &&
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new InlineChunkHtmlPlugin(HtmlWebpackPlugin, [/runtime~.+[.]js/]),
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|
// Makes some environment variables available in index.html.
|
|
// The public URL is available as %PUBLIC_URL% in index.html, e.g.:
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// <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
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|
// In production, it will be an empty string unless you specify "homepage"
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// in `package.json`, in which case it will be the pathname of that URL.
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new InterpolateHtmlPlugin(HtmlWebpackPlugin, env.raw),
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|
// This gives some necessary context to module not found errors, such as
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// the requesting resource.
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new ModuleNotFoundPlugin(paths.appPath),
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|
// Makes some environment variables available to the JS code, for example:
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|
// if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
|
|
// It is absolutely essential that NODE_ENV was set to production here.
|
|
// Otherwise React will be compiled in the very slow development mode.
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|
new webpack.DefinePlugin(env.stringified),
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new MiniCssExtractPlugin({
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|
// Options similar to the same options in webpackOptions.output
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|
// both options are optional
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filename: 'static/css/[name].[contenthash:8].css',
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chunkFilename: 'static/css/[name].[contenthash:8].chunk.css',
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}),
|
|
// Generate a manifest file which contains a mapping of all asset filenames
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|
// to their corresponding output file so that tools can pick it up without
|
|
// having to parse `index.html`.
|
|
new ManifestPlugin({
|
|
fileName: 'asset-manifest.json',
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|
publicPath: publicPath,
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}),
|
|
// Moment.js is an extremely popular library that bundles large locale files
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|
// by default due to how Webpack interprets its code. This is a practical
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// solution that requires the user to opt into importing specific locales.
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|
// https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
|
|
// You can remove this if you don't use Moment.js:
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|
new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
|
|
// Generate a service worker script that will precache, and keep up to date,
|
|
// the HTML & assets that are part of the Webpack build.
|
|
new WorkboxWebpackPlugin.GenerateSW({
|
|
clientsClaim: true,
|
|
exclude: [/\.map$/, /asset-manifest\.json$/],
|
|
importWorkboxFrom: 'cdn',
|
|
navigateFallback: publicUrl + '/index.html',
|
|
navigateFallbackBlacklist: [
|
|
// Exclude URLs starting with /_, as they're likely an API call
|
|
new RegExp('^/_'),
|
|
// Exclude URLs containing a dot, as they're likely a resource in
|
|
// public/ and not a SPA route
|
|
new RegExp('/[^/]+\\.[^/]+$'),
|
|
],
|
|
}),
|
|
// TypeScript type checking
|
|
fs.existsSync(paths.appTsConfig) &&
|
|
new ForkTsCheckerWebpackPlugin({
|
|
typescript: resolve.sync('typescript', {
|
|
basedir: paths.appNodeModules,
|
|
}),
|
|
async: false,
|
|
checkSyntacticErrors: true,
|
|
tsconfig: paths.appTsConfig,
|
|
compilerOptions: {
|
|
module: 'esnext',
|
|
moduleResolution: 'node',
|
|
resolveJsonModule: true,
|
|
isolatedModules: true,
|
|
noEmit: true,
|
|
jsx: 'preserve',
|
|
},
|
|
reportFiles: [
|
|
'**',
|
|
'!**/*.json',
|
|
'!**/__tests__/**',
|
|
'!**/?(*.)(spec|test).*',
|
|
'!src/setupProxy.js',
|
|
'!src/setupTests.*',
|
|
],
|
|
watch: paths.appSrc,
|
|
silent: true,
|
|
formatter: typescriptFormatter,
|
|
}),
|
|
|
|
new MonacoWebpackPlugin(),
|
|
].filter(Boolean),
|
|
// Some libraries import Node modules but don't use them in the browser.
|
|
// Tell Webpack to provide empty mocks for them so importing them works.
|
|
node: {
|
|
dgram: 'empty',
|
|
fs: 'empty',
|
|
net: 'empty',
|
|
tls: 'empty',
|
|
child_process: 'empty',
|
|
},
|
|
// Turn off performance processing because we utilize
|
|
// our own hints via the FileSizeReporter
|
|
performance: false,
|
|
};
|