mirror of
				https://github.com/vector-im/element-web.git
				synced 2025-11-04 10:11:03 +01:00 
			
		
		
		
	This changes Webpack to only output errors, warnings, or new compilations. This has the effect of hiding the massive list of modules. The giant list was actually _hiding_ warnings because they appear first and scroll off the terminal.
		
			
				
	
	
		
			376 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			376 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
const path = require('path');
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const HtmlWebpackPlugin = require('html-webpack-plugin');
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const MiniCssExtractPlugin = require('mini-css-extract-plugin');
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const TerserPlugin = require('terser-webpack-plugin');
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const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
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const webpack = require("webpack");
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let og_image_url = process.env.RIOT_OG_IMAGE_URL;
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if (!og_image_url) og_image_url = 'https://riot.im/app/themes/riot/img/logos/riot-im-logo-black-text.png';
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module.exports = (env, argv) => {
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    if (process.env.CI_PACKAGE) {
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        // Don't run minification for CI builds (this is only set for runs on develop)
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        argv.mode = "development";
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    }
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    const development = {};
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    if (argv.mode !== "production") {
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        // This makes the sourcemaps human readable for developers. We use eval-source-map
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        // because the plain source-map devtool ruins the alignment.
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        development['devtool'] = 'eval-source-map';
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    }
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    // Resolve the directories for the react-sdk and js-sdk for later use. We resolve these early so we
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    // don't have to call them over and over. We also resolve to the package.json instead of the src
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    // directory so we don't have to rely on a index.js or similar file existing.
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    const reactSdkSrcDir = path.resolve(require.resolve("matrix-react-sdk/package.json"), '..', 'src');
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    const jsSdkSrcDir = path.resolve(require.resolve("matrix-js-sdk/package.json"), '..', 'src');
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    return {
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        ...development,
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        entry: {
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            "bundle": "./src/vector/index.js",
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            "indexeddb-worker": "./src/vector/indexeddb-worker.js",
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            "mobileguide": "./src/vector/mobile_guide/index.js",
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            // CSS themes
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            "theme-light": "./node_modules/matrix-react-sdk/res/themes/light/css/light.scss",
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            "theme-dark": "./node_modules/matrix-react-sdk/res/themes/dark/css/dark.scss",
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            "theme-light-custom": "./node_modules/matrix-react-sdk/res/themes/light-custom/css/light-custom.scss",
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            "theme-dark-custom": "./node_modules/matrix-react-sdk/res/themes/dark-custom/css/dark-custom.scss",
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        },
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        optimization: {
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            // Put all of our CSS into one useful place - this is needed for MiniCssExtractPlugin.
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            // Previously we used a different extraction plugin that did this magic for us, but
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            // now we need to consider that the CSS needs to be bundled up together.
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            splitChunks: {
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                cacheGroups: {
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                    styles: {
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                        name: 'styles',
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                        test: /\.css$/,
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                        enforce: true,
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                        // Do not add `chunks: 'all'` here because you'll break the app entry point.
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                    },
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                },
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            },
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            // This fixes duplicate files showing up in chrome with sourcemaps enabled.
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            // See https://github.com/webpack/webpack/issues/7128 for more info.
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            namedModules: false,
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            // Minification is normally enabled by default for webpack in production mode, but
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            // we use a CSS optimizer too and need to manage it ourselves.
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            minimize: argv.mode === 'production',
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            minimizer: argv.mode === 'production' ? [new TerserPlugin({}), new OptimizeCSSAssetsPlugin({})] : [],
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        },
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        resolve: {
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            // We define an alternative import path so we can safely use src/ across the react-sdk
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            // and js-sdk. We already import from src/ where possible to ensure our source maps are
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            // extremely accurate (and because we're capable of compiling the layers manually rather
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            // than relying on partially-mangled output from babel), though we do need to fix the
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            // package level import (stuff like `import {Thing} from "matrix-js-sdk"` for example).
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            // We can't use the aliasing down below to point at src/ because that'll fail to resolve
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            // the package.json for the dependency. Instead, we rely on the package.json of each
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            // layer to have our custom alternate fields to load things in the right order. These are
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            // the defaults of webpack prepended with `matrix_src_`.
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            mainFields: ['matrix_src_browser', 'matrix_src_main', 'browser', 'main'],
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            aliasFields: ['matrix_src_browser', 'browser'],
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            // We need to specify that TS can be resolved without an extension
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            extensions: ['.js', '.json', '.ts'],
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            alias: {
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                // alias any requires to the react module to the one in our path,
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                // otherwise we tend to get the react source included twice when
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                // using `npm link` / `yarn link`.
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                "react": path.resolve(__dirname, 'node_modules/react'),
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                "react-dom": path.resolve(__dirname, 'node_modules/react-dom'),
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                // same goes for js-sdk - we don't need two copies.
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                "matrix-js-sdk": path.resolve(__dirname, 'node_modules/matrix-js-sdk'),
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                // Define a variable so the i18n stuff can load
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                "$webapp": path.resolve(__dirname, 'webapp'),
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            },
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        },
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        module: {
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            noParse: [
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                // for cross platform compatibility use [\\\/] as the path separator
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                // this ensures that the regex trips on both Windows and *nix
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                // don't parse the languages within highlight.js. They cause stack
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                // overflows (https://github.com/webpack/webpack/issues/1721), and
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                // there is no need for webpack to parse them - they can just be
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                // included as-is.
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                /highlight\.js[\\\/]lib[\\\/]languages/,
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                // olm takes ages for webpack to process, and it's already heavily
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                // optimised, so there is little to gain by us uglifying it.
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                /olm[\\\/](javascript[\\\/])?olm\.js$/,
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            ],
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            rules: [
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                {
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                    test: /\.(ts|js)x?$/,
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                    include: (f) => {
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                        // our own source needs babel-ing
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                        if (f.startsWith(path.resolve(__dirname, 'src'))) return true;
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                        // we use the original source files of react-sdk and js-sdk, so we need to
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                        // run them through babel. Because the path tested is the resolved, absolute
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                        // path, these could be anywhere thanks to yarn link. We must also not
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                        // include node modules inside these modules, so we add 'src'.
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                        if (f.startsWith(reactSdkSrcDir)) return true;
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                        if (f.startsWith(jsSdkSrcDir)) return true;
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                        // but we can't run all of our dependencies through babel (many of them still
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                        // use module.exports which breaks if babel injects an 'include' for its
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                        // polyfills: probably fixable but babeling all our dependencies is probably
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                        // not necessary anyway). So, for anything else, don't babel.
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                        return false;
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                    },
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                    loader: 'babel-loader',
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                    options: {
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                        cacheDirectory: true
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                    }
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                },
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                {
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                    test: /\.css$/,
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                    use: [
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                        MiniCssExtractPlugin.loader,
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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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                                sourceMap: true,
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                            }
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                        },
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                        {
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                            loader: 'postcss-loader',
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                            ident: 'postcss',
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                            options: {
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                                sourceMap: true,
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                                plugins: () => [
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                                    // Note that we use significantly fewer plugins on the plain
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                                    // CSS parser. If we start to parse plain CSS, we end with all
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                                    // kinds of nasty problems (like stylesheets not loading).
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                                    //
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                                    // You might have noticed that we're also sending regular CSS
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                                    // through PostCSS. This looks weird, and in fact is probably
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                                    // not what you'd expect, however in order for our CSS build
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                                    // to work nicely we have to do this. Because down the line
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                                    // our SCSS stylesheets reference plain CSS we have to load
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                                    // the plain CSS through PostCSS so it can find it safely. This
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                                    // also acts like a babel-for-css by transpiling our (S)CSS
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                                    // down/up to the right browser support (prefixes, etc).
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                                    // Further, if we don't do this then PostCSS assumes that our
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                                    // plain CSS is SCSS and it really doesn't like that, even
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                                    // though plain CSS should be compatible. The chunking options
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                                    // at the top of this webpack config help group the SCSS and
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                                    // plain CSS together for the bundler.
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                                    require("postcss-simple-vars")(),
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                                    require("postcss-strip-inline-comments")(),
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                                    // It's important that this plugin is last otherwise we end
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                                    // up with broken CSS.
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                                    require('postcss-preset-env')({stage: 3, browsers: 'last 2 versions'}),
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                                ],
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                                parser: "postcss-scss",
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                                "local-plugins": 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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                    test: /\.scss$/,
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                    use: [
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                        MiniCssExtractPlugin.loader,
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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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                                sourceMap: true,
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                            }
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                        },
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                        {
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                            loader: 'postcss-loader',
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                            ident: 'postcss',
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                            options: {
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                                sourceMap: true,
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                                plugins: () => [
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                                    // Note that we use slightly different plugins for SCSS.
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                                    require('postcss-import')(),
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                                    require("postcss-simple-vars")(),
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                                    require("postcss-extend")(),
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                                    require("postcss-nested")(),
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                                    require("postcss-mixins")(),
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                                    require("postcss-easings")(),
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                                    require("postcss-strip-inline-comments")(),
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                                    // It's important that this plugin is last otherwise we end
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                                    // up with broken CSS.
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                                    require('postcss-preset-env')({stage: 3, browsers: 'last 2 versions'}),
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                                ],
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                                parser: "postcss-scss",
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                                "local-plugins": 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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                    test: /\.wasm$/,
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                    loader: "file-loader",
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                    type: "javascript/auto", // https://github.com/webpack/webpack/issues/6725
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                    options: {
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                        name: '[name].[hash:7].[ext]',
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                        outputPath: '.',
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                    },
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                },
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                {
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                    // cache-bust languages.json file placed in
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                    // riot-web/webapp/i18n during build by copy-res.js
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                    test: /\.*languages.json$/,
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                    type: "javascript/auto",
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                    loader: 'file-loader',
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                    options: {
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                        name: 'i18n/[name].[hash:7].[ext]',
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                    },
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                },
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                {
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                    test: /\.(gif|png|svg|ttf|woff|woff2|xml|ico)$/,
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                    // Use a content-based hash in the name so that we can set a long cache
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                    // lifetime for assets while still delivering changes quickly.
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                    oneOf: [
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                        {
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                            // Assets referenced in CSS files
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                            issuer: /\.(scss|css)$/,
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                            loader: 'file-loader',
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                            options: {
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                                esModule: false,
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                                name: '[name].[hash:7].[ext]',
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                                outputPath: getImgOutputPath,
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                                publicPath: function(url, resourcePath) {
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                                    // CSS image usages end up in the `bundles/[hash]` output
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                                    // directory, so we adjust the final path to navigate up
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                                    // twice.
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                                    const outputPath = getImgOutputPath(url, resourcePath);
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                                    return toPublicPath(path.join("../..", outputPath));
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                                },
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                            },
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                        },
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                        {
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                            // Assets referenced in HTML and JS files
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                            loader: 'file-loader',
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                            options: {
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                                esModule: false,
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                                name: '[name].[hash:7].[ext]',
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                                outputPath: getImgOutputPath,
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                                publicPath: function(url, resourcePath) {
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                                    const outputPath = getImgOutputPath(url, resourcePath);
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                                    return toPublicPath(outputPath);
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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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            new webpack.DefinePlugin({
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                'process.env': {
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                    NODE_ENV: JSON.stringify(process.env.NODE_ENV),
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                },
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            }),
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            // This exports our CSS using the splitChunks and loaders above.
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            new MiniCssExtractPlugin({
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                filename: 'bundles/[hash]/[name].css',
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                ignoreOrder: false, // Enable to remove warnings about conflicting order
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            }),
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            // This is the app's main entry point.
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            new HtmlWebpackPlugin({
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                template: './src/vector/index.html',
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                // we inject the links ourselves via the template, because
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                // HtmlWebpackPlugin will screw up our formatting like the names
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                // of the themes and which chunks we actually care about.
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                inject: false,
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                excludeChunks: ['mobileguide'],
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                minify: argv.mode === 'production',
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                vars: {
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                    og_image_url: og_image_url,
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                },
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            }),
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            // This is the mobile guide's entry point (separate for faster mobile loading)
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            new HtmlWebpackPlugin({
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                template: './src/vector/mobile_guide/index.html',
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                filename: 'mobile_guide/index.html',
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                minify: argv.mode === 'production',
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                chunks: ['mobileguide'],
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            }),
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        ],
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        output: {
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            path: path.join(__dirname, "webapp"),
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            // The generated JS (and CSS, from the extraction plugin) are put in a
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            // unique subdirectory for the build. There will only be one such
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            // 'bundle' directory in the generated tarball; however, hosting
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            // servers can collect 'bundles' from multiple versions into one
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            // directory and symlink it into place - this allows users who loaded
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            // an older version of the application to continue to access webpack
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            // chunks even after the app is redeployed.
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            filename: "bundles/[hash]/[name].js",
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            chunkFilename: "bundles/[hash]/[name].js",
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        },
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        // configuration for the webpack-dev-server
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        devServer: {
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            // serve unwebpacked assets from webapp.
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            contentBase: './webapp',
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            // Only output errors, warnings, or new compilations.
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            // This hides the massive list of modules.
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            stats: 'minimal',
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            // hot module replacement doesn't work (I think we'd need react-hot-reload?)
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            // so webpack-dev-server reloads the page on every update which is quite
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            // tedious in Riot since that can take a while.
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            hot: false,
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            inline: false,
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        },
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    };
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};
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/**
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 * Merge assets found via CSS and imports into a single tree, while also preserving
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 * directories under `res`.
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 *
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 * @param {string} url The adjusted name of the file, such as `warning.1234567.svg`.
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 * @param {string} resourcePath The absolute path to the source file with unmodified name.
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 * @return {string} The returned paths will look like `img/warning.1234567.svg`.
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 */
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function getImgOutputPath(url, resourcePath) {
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    const prefix = /^.*[/\\]res[/\\]/;
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    const outputDir = path.dirname(resourcePath).replace(prefix, "");
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    return path.join(outputDir, path.basename(url));
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}
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/**
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 * Convert path to public path format, which always uses forward slashes, since it will
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 * be placed directly into things like CSS files.
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 *
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 * @param {string} path Some path to a file.
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 */
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function toPublicPath(path) {
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    return path.replace(/\\/g, '/');
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}
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