const path = require('path') const glob = require('glob') const webpack = require('webpack') const CopyPlugin = require('copy-webpack-plugin') const WebpackAssetsManifest = require('webpack-assets-manifest') const MiniCssExtractPlugin = require('mini-css-extract-plugin') const { LezerGrammarCompilerPlugin, } = require('./webpack-plugins/lezer-grammar-compiler') const PackageVersions = require('./app/src/infrastructure/PackageVersions') const invalidateBabelCacheIfNeeded = require('./frontend/macros/invalidate-babel-cache-if-needed') // Make sure that babel-macros are re-evaluated after changing the modules config invalidateBabelCacheIfNeeded() // Generate a hash of entry points, including modules const entryPoints = { tracing: './frontend/js/tracing.js', devToolbar: './frontend/js/dev-toolbar.js', main: './frontend/js/main.js', ide: './frontend/js/ide.js', 'ide-detached': './frontend/js/ide-detached.js', marketing: './frontend/js/marketing.js', 'main-style': './frontend/stylesheets/main-style.less', 'main-ieee-style': './frontend/stylesheets/main-ieee-style.less', 'main-light-style': './frontend/stylesheets/main-light-style.less', } // Add entrypoints for each "page" glob .sync( path.join(__dirname, 'modules/*/frontend/js/pages/**/*.{js,jsx,ts,tsx}') ) .forEach(page => { // in: /workspace/services/web/modules/foo/frontend/js/pages/bar.js // out: modules/foo/pages/bar const name = path .relative(__dirname, page) .replace(/frontend[/]js[/]/, '') .replace(/.(js|jsx|ts|tsx)$/, '') entryPoints[name] = './' + path.relative(__dirname, page) }) glob .sync(path.join(__dirname, 'frontend/js/pages/**/*.{js,jsx,ts,tsx}')) .forEach(page => { // in: /workspace/services/web/frontend/js/pages/marketing/homepage.js // out: pages/marketing/homepage const name = path .relative(path.join(__dirname, 'frontend/js/'), page) .replace(/.(js|jsx|ts|tsx)$/, '') entryPoints[name] = './' + path.relative(__dirname, page) }) function getModuleDirectory(moduleName) { const entrypointPath = require.resolve(moduleName) const suffix = `node_modules/${moduleName}` const idx = entrypointPath.indexOf(suffix) if (idx === -1) { throw new Error(`could not find Node module: ${moduleName}`) } return entrypointPath.slice(0, idx + suffix.length) } const mathjaxDir = getModuleDirectory('mathjax') const mathjax3Dir = getModuleDirectory('mathjax-3') const pdfjsVersions = ['pdfjs-dist213', 'pdfjs-dist401'] const vendorDir = path.join(__dirname, 'frontend/js/vendor') const MATHJAX_VERSION = require('mathjax/package.json').version if (MATHJAX_VERSION !== PackageVersions.version.mathjax) { throw new Error( '"mathjax" version de-synced, update services/web/app/src/infrastructure/PackageVersions.js' ) } const MATHJAX_3_VERSION = require('mathjax-3/package.json').version if (MATHJAX_3_VERSION !== PackageVersions.version['mathjax-3']) { throw new Error( '"mathjax-3" version de-synced, update services/web/app/src/infrastructure/PackageVersions.js' ) } module.exports = { // Defines the "entry point(s)" for the application - i.e. the file which // bootstraps the application entry: entryPoints, // Define where and how the bundle will be output to disk // Note: webpack-dev-server does not write the bundle to disk, instead it is // kept in memory for speed output: { path: path.join(__dirname, 'public'), publicPath: '/', // By default write into js directory filename: 'js/[name]-[contenthash].js', // Output as UMD bundle (allows main JS to import with CJS, AMD or global // style code bundles libraryTarget: 'umd', // Name the exported variable from output bundle library: ['Frontend', '[name]'], }, optimization: { // https://webpack.js.org/plugins/split-chunks-plugin/#splitchunkschunks splitChunks: { chunks: 'all', // allow non-async chunks to be analysed for shared modules }, }, // Define how file types are handled by webpack module: { rules: [ { // Pass application JS/TS files through babel-loader, // transpiling to targets defined in browserslist test: /\.([jt]sx?|[cm]js)$/, // Only compile application files and specific dependencies // (other npm and vendored dependencies must be in ES5 already) exclude: [/node_modules\/(?!(react-dnd|chart\.js|@uppy)\/)/, vendorDir], use: [ { loader: 'babel-loader', options: { // Configure babel-loader to cache compiled output so that // subsequent compile runs are much faster cacheDirectory: true, configFile: path.join(__dirname, './babel.config.json'), plugins: [ process.env.REACT_REFRESH && 'react-refresh/babel', ].filter(Boolean), }, }, ], type: 'javascript/auto', }, { // Pass Less files through less-loader/css-loader/mini-css-extract- // plugin (note: run in reverse order) test: /\.less$/, use: [ // Allows the CSS to be extracted to a separate .css file { loader: MiniCssExtractPlugin.loader }, // Resolves any CSS dependencies (e.g. url()) { loader: 'css-loader' }, { // Runs autoprefixer on CSS via postcss loader: 'postcss-loader', options: { postcssOptions: { plugins: ['autoprefixer'], }, }, }, // Compile Less off the main event loop { loader: 'thread-loader', options: { // keep workers alive for dev-server, and shut them down when not needed poolTimeout: process.env.NODE_ENV === 'development' ? 10 * 60 * 1000 : 500, // bring up more workers after they timed out poolRespawn: true, // limit concurrency (one per entrypoint and let the small includes queue up) workers: 6, }, }, // Compiles the Less syntax to CSS { loader: 'less-loader' }, ], }, { // Pass CSS files through css-loader & mini-css-extract-plugin (note: run in reverse order) test: /\.css$/i, use: [MiniCssExtractPlugin.loader, 'css-loader'], }, { // Load fonts test: /\.(woff2?|ttf|otf)$/, type: 'asset/resource', generator: { filename: 'fonts/[name]-[contenthash][ext]', }, }, { // Load images (static files) test: /\.(svg|gif|png|jpg|pdf)$/, type: 'asset/resource', generator: { filename: 'images/[name]-[contenthash][ext]', }, }, { // These options are necessary for handlebars to have access to helper // methods test: /\.handlebars$/, loader: 'handlebars-loader', options: { compat: true, knownHelpersOnly: false, runtimePath: 'handlebars/runtime', }, }, { // Load translations files with custom loader, to extract and apply // fallbacks test: /locales\/(\w{2}(-\w{2})?)\.json$/, use: [ { loader: path.join(__dirname, 'frontend/translations-loader.js'), }, ], }, { // Expose jQuery and $ global variables test: require.resolve('jquery'), use: [ { loader: 'expose-loader', options: { exposes: ['$', 'jQuery'], }, }, ], }, ], }, resolve: { alias: { // custom prefixes for import paths '@': path.resolve(__dirname, './frontend/js/'), }, // symlinks: false, // enable this while using `npm link` extensions: ['.js', '.jsx', '.ts', '.tsx', '.mjs', '.cjs', '.json'], fallback: { events: require.resolve('events'), }, }, plugins: [ new LezerGrammarCompilerPlugin(), // Generate a manifest.json file which is used by the backend to map the // base filenames to the generated output filenames new WebpackAssetsManifest({ entrypoints: true, publicPath: true, output: 'manifest.json', }), new webpack.EnvironmentPlugin({ // Ensure that process.env.RESET_APP_DATA_TIMER is defined, to avoid an error. // https://github.com/algolia/algoliasearch-client-javascript/issues/756 RESET_APP_DATA_TIMER: '120000', // Ensure that process.env.CYPRESS is defined (see utils/worker.js) CYPRESS: false, }), // Prevent moment from loading (very large) locale files that aren't used new webpack.IgnorePlugin({ resourceRegExp: /^\.\/locale$/, contextRegExp: /moment$/, }), // Copy the required files for loading MathJax from MathJax NPM package new CopyPlugin({ patterns: [ // https://www.npmjs.com/package/mathjax#user-content-hosting-your-own-copy-of-the-mathjax-components { from: 'es5/tex-svg-full.js', to: `js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}/es5`, toType: 'dir', context: mathjax3Dir, }, { from: 'es5/input/tex/extensions/**/*.js', to: `js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}`, toType: 'dir', context: mathjax3Dir, }, { from: 'es5/ui/**/*', to: `js/libs/mathjax-3-${PackageVersions.version['mathjax-3']}`, toType: 'dir', context: mathjax3Dir, }, { from: 'MathJax.js', to: 'js/libs/mathjax', context: mathjaxDir }, { from: 'config/**/*', to: 'js/libs/mathjax', context: mathjaxDir }, { from: 'extensions/**/*', globOptions: { // https://github.com/mathjax/MathJax/issues/2403 ignore: ['**/mathmaps/*.js'], }, to: 'js/libs/mathjax', context: mathjaxDir, }, { from: 'localization/en/**/*', to: 'js/libs/mathjax', context: mathjaxDir, }, { from: 'jax/output/HTML-CSS/fonts/TeX/**/*', to: 'js/libs/mathjax', context: mathjaxDir, }, { from: 'jax/output/HTML-CSS/**/*.js', to: 'js/libs/mathjax', context: mathjaxDir, }, { from: 'jax/element/**/*', to: 'js/libs/mathjax', context: mathjaxDir, }, { from: 'jax/input/**/*', to: 'js/libs/mathjax', context: mathjaxDir }, { from: 'fonts/HTML-CSS/TeX/woff/*', to: 'js/libs/mathjax', context: mathjaxDir, }, ...pdfjsVersions.flatMap(version => { const dir = getModuleDirectory(version) // Copy CMap files (used to provide support for non-Latin characters) // and static images from pdfjs-dist package to build output. return [ { from: `cmaps`, to: `js/${version}/cmaps`, context: dir }, { from: `standard_fonts`, to: `fonts/${version}`, context: dir, }, { from: `legacy/web/images`, to: `images/${version}`, context: dir, }, ] }), ], }), ], }