diff --git a/config/webpack.config.prod.js b/config/webpack.config.prod.js new file mode 100644 index 0000000000000000000000000000000000000000..65c7e1528cad407f3c3606a637f27c27847c2630 --- /dev/null +++ b/config/webpack.config.prod.js @@ -0,0 +1,342 @@ +'use strict'; + +const autoprefixer = require('autoprefixer'); +const path = require('path'); +const webpack = require('webpack'); +const HtmlWebpackPlugin = require('html-webpack-plugin'); +const ExtractTextPlugin = require('extract-text-webpack-plugin'); +const ManifestPlugin = require('webpack-manifest-plugin'); +const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin'); +const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin'); +const eslintFormatter = require('react-dev-utils/eslintFormatter'); +const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin'); +const paths = require('./paths'); +const getClientEnvironment = require('./env'); + +// Webpack uses `publicPath` to determine where the app is being served from. +// It requires a trailing slash, or the file assets will get an incorrect path. +const publicPath = paths.servedPath; +// Some apps do not use client-side routing with pushState. +// For these, "homepage" can be set to "." to enable relative asset paths. +const shouldUseRelativeAssetPaths = publicPath === './'; +// Source maps are resource heavy and can cause out of memory issue for large source files. +const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false'; +// `publicUrl` is just like `publicPath`, but we will provide it to our app +// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript. +// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz. +const publicUrl = publicPath.slice(0, -1); +// Get environment variables to inject into our app. +const env = getClientEnvironment(publicUrl); + +// Assert this just to be safe. +// Development builds of React are slow and not intended for production. +if (env.stringified['process.env'].NODE_ENV !== '"production"') { + throw new Error('Production builds must have NODE_ENV=production.'); +} + +// Note: defined here because it will be used more than once. +const cssFilename = 'static/css/[name].[contenthash:8].css'; + +// ExtractTextPlugin expects the build output to be flat. +// (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27) +// However, our output is structured with css, js and media folders. +// To have this structure working with relative paths, we have to use custom options. +const extractTextPluginOptions = shouldUseRelativeAssetPaths + ? // Making sure that the publicPath goes back to to build folder. + { publicPath: Array(cssFilename.split('/').length).join('../') } + : {}; + +// This is the production configuration. +// It compiles slowly and is focused on producing a fast and minimal bundle. +// The development configuration is different and lives in a separate file. +module.exports = { + // Don't attempt to continue if there are any errors. + bail: true, + // We generate sourcemaps in production. This is slow but gives good results. + // You can exclude the *.map files from the build during deployment. + devtool: shouldUseSourceMap ? 'source-map' : false, + // In production, we only want to load the polyfills and the app code. + entry: [require.resolve('./polyfills'), paths.appIndexJs], + output: { + // The build folder. + path: paths.appBuild, + // Generated JS file names (with nested folders). + // There will be one main bundle, and one file per asynchronous chunk. + // We don't currently advertise code splitting but Webpack supports it. + filename: 'static/js/[name].[chunkhash:8].js', + chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js', + // We inferred the "public path" (such as / or /my-project) from homepage. + publicPath: publicPath, + // Point sourcemap entries to original disk location (format as URL on Windows) + devtoolModuleFilenameTemplate: info => + path + .relative(paths.appSrc, info.absoluteResourcePath) + .replace(/\\/g, '/'), + }, + resolve: { + // This allows you to set a fallback for where Webpack should look for modules. + // We placed these paths second because we want `node_modules` to "win" + // if there are any conflicts. This matches Node resolution mechanism. + // https://github.com/facebookincubator/create-react-app/issues/253 + modules: ['node_modules', paths.appNodeModules].concat( + // It is guaranteed to exist because we tweak it in `env.js` + process.env.NODE_PATH.split(path.delimiter).filter(Boolean) + ), + // These are the reasonable defaults supported by the Node ecosystem. + // We also include JSX as a common component filename extension to support + // some tools, although we do not recommend using it, see: + // https://github.com/facebookincubator/create-react-app/issues/290 + // `web` extension prefixes have been added for better support + // for React Native Web. + extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'], + alias: { + + // Support React Native Web + // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/ + 'react-native': 'react-native-web', + }, + plugins: [ + // Prevents users from importing files from outside of src/ (or node_modules/). + // This often causes confusion because we only process files within src/ with babel. + // To fix this, we prevent you from importing files out of src/ -- if you'd like to, + // please link the files into your node_modules/ and let module-resolution kick in. + // Make sure your source files are compiled, as they will not be processed in any way. + new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]), + ], + }, + module: { + strictExportPresence: true, + rules: [ + // TODO: Disable require.ensure as it's not a standard language feature. + // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176. + // { parser: { requireEnsure: false } }, + + // First, run the linter. + // It's important to do this before Babel processes the JS. + { + test: /\.(js|jsx|mjs)$/, + enforce: 'pre', + use: [ + { + options: { + formatter: eslintFormatter, + eslintPath: require.resolve('eslint'), + + }, + loader: require.resolve('eslint-loader'), + }, + ], + include: paths.appSrc, + }, + { + // "oneOf" will traverse all following loaders until one will + // match the requirements. When no loader matches it will fall + // back to the "file" loader at the end of the loader list. + oneOf: [ + // "url" loader works just like "file" loader but it also embeds + // assets smaller than specified size as data URLs to avoid requests. + { + test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/], + loader: require.resolve('url-loader'), + options: { + limit: 10000, + name: 'static/media/[name].[hash:8].[ext]', + }, + }, + // Process JS with Babel. + { + test: /\.(js|jsx|mjs)$/, + include: paths.appSrc, + loader: require.resolve('babel-loader'), + options: { + + compact: true, + }, + }, + // The notation here is somewhat confusing. + // "postcss" loader applies autoprefixer to our CSS. + // "css" loader resolves paths in CSS and adds assets as dependencies. + // "style" loader normally turns CSS into JS modules injecting