element-web/webpack.config.js

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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;
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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)
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// We override this via environment variable to avoid duplicating the scripts
// in `package.json` just for a different mode.
argv.mode = "development";
}
const development = {};
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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.
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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",
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"indexeddb-worker": "./src/vector/indexeddb-worker.js",
"mobileguide": "./src/vector/mobile_guide/index.js",
Use a local widget wrapper for Jitsi calls Effectively fixes https://github.com/vector-im/riot-web/issues/11074 Effectively fixes https://github.com/vector-im/riot-web/issues/7112 Fixes https://github.com/vector-im/riot-web/issues/6930 Fixes Jitsi widgets not working for guests (https://github.com/vector-im/riot-web/issues/8933) Fixes https://github.com/vector-im/riot-web/issues/5048 Previously we were relying on an integration manager to be defined, functional, and alive in order to join Jitsi calls. This commit changes this so we aren't reliant on an integration manager for Jitsi calls at all, and gives people the option of choosing a Jitsi server via the config.json. This side is just the wrapper/shell: the logic is mostly in the react-sdk (to be linked via PRs). This layer simply has an HTML file exported that can be used to render a Jitsi widget, and the react-sdk constructs a URL to access it locally. This is similar to how the mobile apps handle Jitsi widgets: instead of iframing the widget URL directly into the app, they pull apart the widget information and natively render it. We're effectively doing the same here by parsing the widget options and using our local wrapper instead of whatever happens to be defined in the widget state event. Integration managers should still continue to offer a widget URL for Jitsi widgets as this is what the spec requires. A large part of this is based upon Dimension's handling of Jitsi and widgets in general: a license has been granted to allow Riot (and therefore the react-sdk) to use the code and be inspired by it.
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"jitsi": "./src/vector/jitsi/index.ts",
"usercontent": "./node_modules/matrix-react-sdk/src/usercontent/index.js",
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// 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",
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"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',
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test: /\.css$/,
enforce: true,
// Do not add `chunks: 'all'` here because you'll break the app entry point.
},
default: {
reuseExistingChunk: true,
},
},
},
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// 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',
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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'],
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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
extensions: ['.js', '.json', '.ts', '.tsx'],
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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'),
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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.
"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'),
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// 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) => {
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// 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
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// 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;
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// 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
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// 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")(),
// 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]',
},
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},
{
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'],
}),
],
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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",
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},
// 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,
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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));
}
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/**
* 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, '/');
}