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://riot.im/app/themes/riot/img/logos/riot-im-logo-black-text.png';
module.exports = (env, argv) => ({
entry: {
"bundle": "./src/vector/index.js",
"indexeddb-worker": "./src/vector/indexeddb-worker.js",
"mobileguide": "./src/vector/mobile_guide/index.js",
// CSS themes
"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$/,
enforce: true,
// Do not add `chunks: 'all'` here because you'll break the app entry point.
},
},
},
// Minification is normally enabled by default for webpack in production mode, but
// we use a CSS optimizer too and need to manage it ourselves.
minimize: argv.mode === 'production',
minimizer: argv.mode === 'production' ? [new TerserPlugin({}), new OptimizeCSSAssetsPlugin({})] : [],
},
resolve: {
// We define an alternative import path so we can safely use src/ across the react-sdk
// and js-sdk. We already import from src/ where possible to ensure our source maps are
// extremely accurate (and because we're capable of compiling the layers manually rather
// than relying on partially-mangled output from babel), though we do need to fix the
// package level import (stuff like `import {Thing} from "matrix-js-sdk"` for example).
// We can't use the aliasing down below to point at src/ because that'll fail to resolve
// the package.json for the dependency. Instead, we rely on the package.json of each
// layer to have our custom alternate fields to load things in the right order. These are
// the defaults of webpack prepended with `matrix_src_`.
mainFields: ['matrix_src_browser', 'matrix_src_main', 'browser', 'main'],
aliasFields: ['matrix_src_browser', 'browser'],
// We need to specify that TS can be resolved without an extension
extensions: ['.js', '.json', '.ts'],
alias: {
// alias any requires to the react module to the one in our path,
// otherwise we tend to get the react source included twice when
// using `npm link` / `yarn link`.
"react": path.resolve(__dirname, 'node_modules/react'),
"react-dom": path.resolve(__dirname, 'node_modules/react-dom'),
// same goes for js-sdk - we don't need two copies.
"matrix-js-sdk": path.resolve(__dirname, 'node_modules/matrix-js-sdk'),
// Define a variable so the i18n stuff can load
"$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$/,
],
rules: [
{
test: /\.(ts|js)x?$/,
exclude: /node_modules/,
loader: 'babel-loader',
options: {
cacheDirectory: true,
}
},
{
test: /\.css$/,
use: [
MiniCssExtractPlugin.loader,
{
loader: 'css-loader',
options: {
importLoaders: 1,
sourceMap: true,
}
},
{
loader: 'postcss-loader',
ident: 'postcss',
options: {
sourceMap: true,
plugins: () => [
// Note that we use significantly fewer plugins on the plain
// CSS parser. If we start to parse plain CSS, we end with all
// kinds of nasty problems (like stylesheets not loading).
//
// You might have noticed that we're also sending regular CSS
// through PostCSS. This looks weird, and in fact is probably
// not what you'd expect, however in order for our CSS build
// to work nicely we have to do this. Because down the line
// our SCSS stylesheets reference plain CSS we have to load
// the plain CSS through PostCSS so it can find it safely. This
// also acts like a babel-for-css by transpiling our (S)CSS
// down/up to the right browser support (prefixes, etc).
// Further, if we don't do this then PostCSS assumes that our
// plain CSS is SCSS and it really doesn't like that, even
// though plain CSS should be compatible. The chunking options
// at the top of this webpack config help group the SCSS and
// plain CSS together for the bundler.
require("postcss-simple-vars")(),
require("postcss-strip-inline-comments")(),
// It's important that this plugin is last otherwise we end
// up with broken CSS.
require('postcss-preset-env')({stage: 3, browsers: 'last 2 versions'}),
],
parser: "postcss-scss",
"local-plugins": true,
},
},
]
},
{
test: /\.scss$/,
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-simple-vars")(),
require("postcss-extend")(),
require("postcss-nested")(),
require("postcss-mixins")(),
require("postcss-easings")(),
require("postcss-strip-inline-comments")(),
// 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$/,
loader: "file-loader",
type: "javascript/auto", // https://github.com/webpack/webpack/issues/6725
options: {
name: '[name].[hash:7].[ext]',
outputPath: '.',
},
},
{
// cache-bust languages.json file placed in
// riot-web/webapp/i18n during build by copy-res.js
test: /\.*languages.json$/,
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: getImgOutputPath,
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 = getImgOutputPath(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: getImgOutputPath,
publicPath: function(url, resourcePath) {
const outputPath = getImgOutputPath(url, resourcePath);
return toPublicPath(outputPath);
},
},
},
],
},
]
},
plugins: [
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: JSON.stringify(process.env.NODE_ENV),
},
}),
// 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'],
minify: argv.mode === 'production',
vars: {
og_image_url: og_image_url,
},
}),
// 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'],
}),
],
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",
},
// DO NOT enable this option. It makes the source maps all wonky. Instead,
// we end up including the sourcemaps through the loaders which makes them
// more accurate.
//devtool: "source-map",
// configuration for the webpack-dev-server
devServer: {
// serve unwebpacked assets from webapp.
contentBase: './webapp',
stats: {
// don't fill the console up with a mahoosive list of modules
chunks: false,
},
// 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 `res`.
*
* @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 getImgOutputPath(url, resourcePath) {
const prefix = /^.*[/\\]res[/\\]/;
const outputDir = path.dirname(resourcePath).replace(prefix, "");
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, '/');
}