const path = require('path'); const HtmlWebpackPlugin = require('html-webpack-plugin'); const MiniCssExtractPlugin = require('mini-css-extract-plugin'); const TerserPlugin = require('terser-webpack-plugin'); const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin'); const webpack = require("webpack"); let og_image_url = process.env.RIOT_OG_IMAGE_URL; if (!og_image_url) og_image_url = 'https://app.element.io/themes/element/img/logos/opengraph.png'; module.exports = (env, argv) => { if (process.env.CI_PACKAGE) { // Don't run minification for CI builds (this is only set for runs on develop) // We override this via environment variable to avoid duplicating the scripts // in `package.json` just for a different mode. argv.mode = "development"; } const development = {}; if (argv.mode === "production") { development['devtool'] = 'nosources-source-map'; } else { // This makes the sourcemaps human readable for developers. We use eval-source-map // because the plain source-map devtool ruins the alignment. development['devtool'] = 'eval-source-map'; } // Resolve the directories for the react-sdk and js-sdk for later use. We resolve these early so we // don't have to call them over and over. We also resolve to the package.json instead of the src // directory so we don't have to rely on a index.js or similar file existing. const reactSdkSrcDir = path.resolve(require.resolve("matrix-react-sdk/package.json"), '..', 'src'); const jsSdkSrcDir = path.resolve(require.resolve("matrix-js-sdk/package.json"), '..', 'src'); return { ...development, entry: { "bundle": "./src/vector/index.ts", "indexeddb-worker": "./src/vector/indexeddb-worker.js", "mobileguide": "./src/vector/mobile_guide/index.js", "jitsi": "./src/vector/jitsi/index.ts", "usercontent": "./node_modules/matrix-react-sdk/src/usercontent/index.js", // CSS themes "theme-legacy": "./node_modules/matrix-react-sdk/res/themes/legacy-light/css/legacy-light.scss", "theme-legacy-dark": "./node_modules/matrix-react-sdk/res/themes/legacy-dark/css/legacy-dark.scss", "theme-light": "./node_modules/matrix-react-sdk/res/themes/light/css/light.scss", "theme-dark": "./node_modules/matrix-react-sdk/res/themes/dark/css/dark.scss", "theme-light-custom": "./node_modules/matrix-react-sdk/res/themes/light-custom/css/light-custom.scss", "theme-dark-custom": "./node_modules/matrix-react-sdk/res/themes/dark-custom/css/dark-custom.scss", }, optimization: { // Put all of our CSS into one useful place - this is needed for MiniCssExtractPlugin. // Previously we used a different extraction plugin that did this magic for us, but // now we need to consider that the CSS needs to be bundled up together. splitChunks: { cacheGroups: { styles: { name: 'styles', test: /\.css$/, enforce: true, // Do not add `chunks: 'all'` here because you'll break the app entry point. }, default: { reuseExistingChunk: true, }, }, }, // This fixes duplicate files showing up in chrome with sourcemaps enabled. // See https://github.com/webpack/webpack/issues/7128 for more info. namedModules: false, // Minification is normally enabled by default for webpack in production mode, but // we use a CSS optimizer too and need to manage it ourselves. minimize: argv.mode === 'production', minimizer: argv.mode === 'production' ? [new TerserPlugin({}), new OptimizeCSSAssetsPlugin({})] : [], }, resolve: { // We define an alternative import path so we can safely use src/ across the react-sdk // and js-sdk. We already import from src/ where possible to ensure our source maps are // extremely accurate (and because we're capable of compiling the layers manually rather // than relying on partially-mangled output from babel), though we do need to fix the // package level import (stuff like `import {Thing} from "matrix-js-sdk"` for example). // We can't use the aliasing down below to point at src/ because that'll fail to resolve // the package.json for the dependency. Instead, we rely on the package.json of each // layer to have our custom alternate fields to load things in the right order. These are // the defaults of webpack prepended with `matrix_src_`. mainFields: ['matrix_src_browser', 'matrix_src_main', 'browser', 'main'], aliasFields: ['matrix_src_browser', 'browser'], // We need to specify that TS can be resolved without an extension extensions: ['.js', '.json', '.ts', '.tsx'], alias: { // alias any requires to the react module to the one in our path, // otherwise we tend to get the react source included twice when // using `npm link` / `yarn link`. "react": path.resolve(__dirname, 'node_modules/react'), "react-dom": path.resolve(__dirname, 'node_modules/react-dom'), // same goes for js-sdk - we don't need two copies. "matrix-js-sdk": path.resolve(__dirname, 'node_modules/matrix-js-sdk'), // and prop-types and sanitize-html "prop-types": path.resolve(__dirname, 'node_modules/prop-types'), "sanitize-html": path.resolve(__dirname, 'node_modules/sanitize-html'), // Define a variable so the i18n stuff can load "$webapp": path.resolve(__dirname, 'webapp'), }, }, module: { noParse: [ // for cross platform compatibility use [\\\/] as the path separator // this ensures that the regex trips on both Windows and *nix // don't parse the languages within highlight.js. They cause stack // overflows (https://github.com/webpack/webpack/issues/1721), and // there is no need for webpack to parse them - they can just be // included as-is. /highlight\.js[\\\/]lib[\\\/]languages/, // olm takes ages for webpack to process, and it's already heavily // optimised, so there is little to gain by us uglifying it. /olm[\\\/](javascript[\\\/])?olm\.js$/, ], rules: [ { test: /\.(ts|js)x?$/, include: (f) => { // our own source needs babel-ing if (f.startsWith(path.resolve(__dirname, 'src'))) return true; // we use the original source files of react-sdk and js-sdk, so we need to // run them through babel. Because the path tested is the resolved, absolute // path, these could be anywhere thanks to yarn link. We must also not // include node modules inside these modules, so we add 'src'. if (f.startsWith(reactSdkSrcDir)) return true; if (f.startsWith(jsSdkSrcDir)) return true; // but we can't run all of our dependencies through babel (many of them still // use module.exports which breaks if babel injects an 'include' for its // polyfills: probably fixable but babeling all our dependencies is probably // not necessary anyway). So, for anything else, don't babel. return false; }, loader: 'babel-loader', options: { cacheDirectory: true } }, { test: /\.css$/, use: [ MiniCssExtractPlugin.loader, { loader: 'css-loader', options: { importLoaders: 1, sourceMap: true, } }, { loader: 'postcss-loader', ident: 'postcss', options: { sourceMap: true, plugins: () => [ // Note that we use significantly fewer plugins on the plain // CSS parser. If we start to parse plain CSS, we end with all // kinds of nasty problems (like stylesheets not loading). // // You might have noticed that we're also sending regular CSS // through PostCSS. This looks weird, and in fact is probably // not what you'd expect, however in order for our CSS build // to work nicely we have to do this. Because down the line // our SCSS stylesheets reference plain CSS we have to load // the plain CSS through PostCSS so it can find it safely. This // also acts like a babel-for-css by transpiling our (S)CSS // down/up to the right browser support (prefixes, etc). // Further, if we don't do this then PostCSS assumes that our // plain CSS is SCSS and it really doesn't like that, even // though plain CSS should be compatible. The chunking options // at the top of this webpack config help group the SCSS and // plain CSS together for the bundler. require("postcss-simple-vars")(), require("postcss-strip-inline-comments")(), require("postcss-hexrgba")(), // It's important that this plugin is last otherwise we end // up with broken CSS. require('postcss-preset-env')({stage: 3, browsers: 'last 2 versions'}), ], parser: "postcss-scss", "local-plugins": true, }, }, ] }, { test: /\.scss$/, use: [ MiniCssExtractPlugin.loader, { loader: 'css-loader', options: { importLoaders: 1, sourceMap: true, } }, { loader: 'postcss-loader', ident: 'postcss', options: { sourceMap: true, plugins: () => [ // Note that we use slightly different plugins for SCSS. require('postcss-import')(), require("postcss-mixins")(), require("postcss-simple-vars")(), require("postcss-extend")(), require("postcss-nested")(), require("postcss-easings")(), require("postcss-strip-inline-comments")(), require("postcss-hexrgba")(), require("postcss-calc")({warnWhenCannotResolve: true}), // It's important that this plugin is last otherwise we end // up with broken CSS. require('postcss-preset-env')({stage: 3, browsers: 'last 2 versions'}), ], parser: "postcss-scss", "local-plugins": true, }, }, ] }, { test: /\.wasm$/, loader: "file-loader", type: "javascript/auto", // https://github.com/webpack/webpack/issues/6725 options: { name: '[name].[hash:7].[ext]', outputPath: '.', }, }, { // cache-bust languages.json file placed in // element-web/webapp/i18n during build by copy-res.js test: /\.*languages.json$/, type: "javascript/auto", loader: 'file-loader', options: { name: 'i18n/[name].[hash:7].[ext]', }, }, { test: /\.(gif|png|svg|ttf|woff|woff2|xml|ico)$/, // Use a content-based hash in the name so that we can set a long cache // lifetime for assets while still delivering changes quickly. oneOf: [ { // Assets referenced in CSS files issuer: /\.(scss|css)$/, loader: 'file-loader', options: { esModule: false, name: '[name].[hash:7].[ext]', outputPath: getAssetOutputPath, publicPath: function(url, resourcePath) { // CSS image usages end up in the `bundles/[hash]` output // directory, so we adjust the final path to navigate up // twice. const outputPath = getAssetOutputPath(url, resourcePath); return toPublicPath(path.join("../..", outputPath)); }, }, }, { // Assets referenced in HTML and JS files loader: 'file-loader', options: { esModule: false, name: '[name].[hash:7].[ext]', outputPath: getAssetOutputPath, publicPath: function(url, resourcePath) { const outputPath = getAssetOutputPath(url, resourcePath); return toPublicPath(outputPath); }, }, }, ], }, ] }, plugins: [ // This exports our CSS using the splitChunks and loaders above. new MiniCssExtractPlugin({ filename: 'bundles/[hash]/[name].css', ignoreOrder: false, // Enable to remove warnings about conflicting order }), // This is the app's main entry point. new HtmlWebpackPlugin({ template: './src/vector/index.html', // we inject the links ourselves via the template, because // HtmlWebpackPlugin will screw up our formatting like the names // of the themes and which chunks we actually care about. inject: false, excludeChunks: ['mobileguide', 'usercontent', 'jitsi'], minify: argv.mode === 'production', vars: { og_image_url: og_image_url, }, }), // This is the jitsi widget wrapper (embedded, so isolated stack) new HtmlWebpackPlugin({ template: './src/vector/jitsi/index.html', filename: 'jitsi.html', minify: argv.mode === 'production', chunks: ['jitsi'], }), // This is the mobile guide's entry point (separate for faster mobile loading) new HtmlWebpackPlugin({ template: './src/vector/mobile_guide/index.html', filename: 'mobile_guide/index.html', minify: argv.mode === 'production', chunks: ['mobileguide'], }), // These are the static error pages for when the javascript env is *really unsupported* new HtmlWebpackPlugin({ template: './src/vector/static/unable-to-load.html', filename: 'static/unable-to-load.html', minify: argv.mode === 'production', chunks: [], }), new HtmlWebpackPlugin({ template: './src/vector/static/incompatible-browser.html', filename: 'static/incompatible-browser.html', minify: argv.mode === 'production', chunks: [], }), // This is the usercontent sandbox's entry point (separate for iframing) new HtmlWebpackPlugin({ template: './node_modules/matrix-react-sdk/src/usercontent/index.html', filename: 'usercontent/index.html', minify: argv.mode === 'production', chunks: ['usercontent'], }), ], output: { path: path.join(__dirname, "webapp"), // The generated JS (and CSS, from the extraction plugin) are put in a // unique subdirectory for the build. There will only be one such // 'bundle' directory in the generated tarball; however, hosting // servers can collect 'bundles' from multiple versions into one // directory and symlink it into place - this allows users who loaded // an older version of the application to continue to access webpack // chunks even after the app is redeployed. filename: "bundles/[hash]/[name].js", chunkFilename: "bundles/[hash]/[name].js", }, // configuration for the webpack-dev-server devServer: { // serve unwebpacked assets from webapp. contentBase: './webapp', // Only output errors, warnings, or new compilations. // This hides the massive list of modules. stats: 'minimal', // hot module replacement doesn't work (I think we'd need react-hot-reload?) // so webpack-dev-server reloads the page on every update which is quite // tedious in Riot since that can take a while. hot: false, inline: false, }, }; }; /** * Merge assets found via CSS and imports into a single tree, while also preserving * directories under e.g. `res` or similar. * * @param {string} url The adjusted name of the file, such as `warning.1234567.svg`. * @param {string} resourcePath The absolute path to the source file with unmodified name. * @return {string} The returned paths will look like `img/warning.1234567.svg`. */ function getAssetOutputPath(url, resourcePath) { // `res` is the parent dir for our own assets in various layers // `dist` is the parent dir for KaTeX assets const prefix = /^.*[/\\](dist|res)[/\\]/; if (!resourcePath.match(prefix)) { throw new Error(`Unexpected asset path: ${resourcePath}`); } let outputDir = path.dirname(resourcePath).replace(prefix, ""); if (resourcePath.includes("KaTeX")) { // Add a clearly named directory segment, rather than leaving the KaTeX // assets loose in each asset type directory. outputDir = path.join(outputDir, "KaTeX"); } return path.join(outputDir, path.basename(url)); } /** * Convert path to public path format, which always uses forward slashes, since it will * be placed directly into things like CSS files. * * @param {string} path Some path to a file. */ function toPublicPath(path) { return path.replace(/\\/g, '/'); }