213 lines
7.0 KiB
JavaScript
213 lines
7.0 KiB
JavaScript
const autoprefixer = require('autoprefixer');
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const cssvars = require('postcss-simple-vars');
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const webpack = require('webpack');
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const UglifyJSPlugin = require('uglifyjs-webpack-plugin')
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const HtmlWebpackPlugin = require('html-webpack-plugin');
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const ExtractTextPlugin = require('extract-text-webpack-plugin');
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const ManifestPlugin = require('webpack-manifest-plugin');
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const url = require('url');
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var paths = require('./paths');
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var getClientEnvironment = require('./env');
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var cssvariables = require(paths.appSrc + '/theme/variables');
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const postcssPlugins = [
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autoprefixer({
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browsers: [
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'>1%',
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'last 4 versions',
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'Firefox ESR',
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'not ie < 9', // React doesn't support IE8 anyway
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]
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}),
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cssvars({
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variables: function () {
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return Object.assign({}, cssvariables);
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},
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silent: true
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}),
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];
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function ensureSlash(path, needsSlash) {
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var hasSlash = path.endsWith('/');
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if (hasSlash && !needsSlash) {
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return path.substr(path, path.length - 1);
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} else if (!hasSlash && needsSlash) {
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return path + '/';
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} else {
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return path;
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}
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}
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// We use "homepage" field to infer "public path" at which the app is served.
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// Webpack needs to know it to put the right <script> hrefs into HTML even in
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// single-page apps that may serve index.html for nested URLs like /todos/42.
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// We can't use a relative path in HTML because we don't want to load something
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// like /todos/42/static/js/bundle.7289d.js. We have to know the root.
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var homepagePath = require(paths.appPackageJson).homepage;
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var homepagePathname = homepagePath ? url.parse(homepagePath).pathname : '/';
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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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var publicPath = ensureSlash(homepagePathname, true);
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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_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
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var publicUrl = ensureSlash(homepagePathname, false);
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// Get environment variables to inject into our app.
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var 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['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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// 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: 'source-map',
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// In production, we only want to load the polyfills and the app code.
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optimization: {
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minimizer: [
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// we specify a custom UglifyJsPlugin here to get source maps in production
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new UglifyJSPlugin({
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uglifyOptions: {
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output: {
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comments: false
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},
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compress: {
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unsafe_comps: true,
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properties: true,
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keep_fargs: false,
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pure_getters: true,
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collapse_vars: true,
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warnings: false,
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sequences: true,
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dead_code: true,
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drop_debugger: true,
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comparisons: true,
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conditionals: true,
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evaluate: true,
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booleans: true,
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loops: true,
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unused: true,
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hoist_funs: true,
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if_return: true,
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join_vars: true,
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drop_console: true
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}
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}
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})
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]
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},
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entry: [
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require.resolve('./polyfills'),
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paths.appIndexJs
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],
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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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},
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resolve: {
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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/facebookincubator/create-react-app/issues/290
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extensions: ['.js', '.json', '.jsx'],
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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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},
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module: {
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rules: [
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{
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test: /\.(js|jsx)$/,
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include: paths.appSrc,
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use: {
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loader: "babel-loader"
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}
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},
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{
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test: /\.(scss|css)$/,
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use: ExtractTextPlugin.extract({
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fallback: 'style-loader',
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use: [
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{
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loader: 'css-loader',
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options: {
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importLoaders: 1,
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modules: true,
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minimize: true
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}
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},
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{
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loader: 'postcss-loader',
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options: {
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sourceMap: true,
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plugins: postcssPlugins,
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}
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},
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],
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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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// Makes some environment variables available to the JS code, for example:
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// if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
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// It is absolutely essential that NODE_ENV was set to production here.
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// Otherwise React will be compiled in the very slow development mode.
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new webpack.DefinePlugin(env),
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// Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
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new ExtractTextPlugin('static/css/[name].[contenthash:8].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
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// having to parse `index.html`.
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new ManifestPlugin({
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fileName: 'asset-manifest.json'
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})
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],
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// Some libraries import Node modules but don't use them in the browser.
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// Tell Webpack to provide empty mocks for them so importing them works.
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node: {
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fs: 'empty',
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net: 'empty',
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tls: 'empty'
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}
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};
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