gitlab-org--gitlab-foss/config/webpack.config.js

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const fs = require('fs');
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const path = require('path');
const glob = require('glob');
const webpack = require('webpack');
const VueLoaderPlugin = require('vue-loader/lib/plugin');
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const StatsWriterPlugin = require('webpack-stats-plugin').StatsWriterPlugin;
const CompressionPlugin = require('compression-webpack-plugin');
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const CopyWebpackPlugin = require('copy-webpack-plugin');
const vendorDllHash = require('./helpers/vendor_dll_hash');
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const ROOT_PATH = path.resolve(__dirname, '..');
const VENDOR_DLL = process.env.WEBPACK_VENDOR_DLL && process.env.WEBPACK_VENDOR_DLL !== 'false';
const CACHE_PATH = process.env.WEBPACK_CACHE_PATH || path.join(ROOT_PATH, 'tmp/cache');
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const IS_PRODUCTION = process.env.NODE_ENV === 'production';
const IS_DEV_SERVER = process.env.WEBPACK_DEV_SERVER === 'true';
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const IS_EE = require('./helpers/is_ee_env');
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const DEV_SERVER_HOST = process.env.DEV_SERVER_HOST || 'localhost';
const DEV_SERVER_PORT = parseInt(process.env.DEV_SERVER_PORT, 10) || 3808;
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const DEV_SERVER_LIVERELOAD = IS_DEV_SERVER && process.env.DEV_SERVER_LIVERELOAD !== 'false';
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const WEBPACK_REPORT = process.env.WEBPACK_REPORT;
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const WEBPACK_MEMORY_TEST = process.env.WEBPACK_MEMORY_TEST;
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const NO_COMPRESSION = process.env.NO_COMPRESSION;
const NO_SOURCEMAPS = process.env.NO_SOURCEMAPS;
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const VUE_VERSION = require('vue/package.json').version;
const VUE_LOADER_VERSION = require('vue-loader/package.json').version;
const WEBPACK_VERSION = require('webpack/package.json').version;
const devtool = IS_PRODUCTION ? 'source-map' : 'cheap-module-eval-source-map';
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let autoEntriesCount = 0;
let watchAutoEntries = [];
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const defaultEntries = ['./main'];
function generateEntries() {
// generate automatic entry points
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const autoEntries = {};
const autoEntriesMap = {};
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const pageEntries = glob.sync('pages/**/index.js', {
cwd: path.join(ROOT_PATH, 'app/assets/javascripts'),
});
watchAutoEntries = [path.join(ROOT_PATH, 'app/assets/javascripts/pages/')];
function generateAutoEntries(path, prefix = '.') {
const chunkPath = path.replace(/\/index\.js$/, '');
const chunkName = chunkPath.replace(/\//g, '.');
autoEntriesMap[chunkName] = `${prefix}/${path}`;
}
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pageEntries.forEach(path => generateAutoEntries(path));
if (IS_EE) {
const eePageEntries = glob.sync('pages/**/index.js', {
cwd: path.join(ROOT_PATH, 'ee/app/assets/javascripts'),
});
eePageEntries.forEach(path => generateAutoEntries(path, 'ee'));
watchAutoEntries.push(path.join(ROOT_PATH, 'ee/app/assets/javascripts/pages/'));
}
const autoEntryKeys = Object.keys(autoEntriesMap);
autoEntriesCount = autoEntryKeys.length;
// import ancestor entrypoints within their children
autoEntryKeys.forEach(entry => {
const entryPaths = [autoEntriesMap[entry]];
const segments = entry.split('.');
while (segments.pop()) {
const ancestor = segments.join('.');
if (autoEntryKeys.includes(ancestor)) {
entryPaths.unshift(autoEntriesMap[ancestor]);
}
}
autoEntries[entry] = defaultEntries.concat(entryPaths);
});
const manualEntries = {
default: defaultEntries,
sentry: './sentry/index.js',
};
return Object.assign(manualEntries, autoEntries);
}
const alias = {
'~': path.join(ROOT_PATH, 'app/assets/javascripts'),
emojis: path.join(ROOT_PATH, 'fixtures/emojis'),
empty_states: path.join(ROOT_PATH, 'app/views/shared/empty_states'),
icons: path.join(ROOT_PATH, 'app/views/shared/icons'),
images: path.join(ROOT_PATH, 'app/assets/images'),
vendor: path.join(ROOT_PATH, 'vendor/assets/javascripts'),
vue$: 'vue/dist/vue.esm.js',
spec: path.join(ROOT_PATH, 'spec/javascripts'),
jest: path.join(ROOT_PATH, 'spec/frontend'),
// the following resolves files which are different between CE and EE
ee_else_ce: path.join(ROOT_PATH, 'app/assets/javascripts'),
// override loader path for icons.svg so we do not duplicate this asset
'@gitlab/svgs/dist/icons.svg': path.join(
ROOT_PATH,
'app/assets/javascripts/lib/utils/icons_path.js',
),
};
if (IS_EE) {
Object.assign(alias, {
ee: path.join(ROOT_PATH, 'ee/app/assets/javascripts'),
ee_component: path.join(ROOT_PATH, 'ee/app/assets/javascripts'),
ee_empty_states: path.join(ROOT_PATH, 'ee/app/views/shared/empty_states'),
ee_icons: path.join(ROOT_PATH, 'ee/app/views/shared/icons'),
ee_images: path.join(ROOT_PATH, 'ee/app/assets/images'),
ee_spec: path.join(ROOT_PATH, 'ee/spec/javascripts'),
ee_jest: path.join(ROOT_PATH, 'ee/spec/frontend'),
ee_else_ce: path.join(ROOT_PATH, 'ee/app/assets/javascripts'),
});
}
// if there is a compiled DLL with a matching hash string, use it
let dll;
if (VENDOR_DLL && !IS_PRODUCTION) {
const dllHash = vendorDllHash();
const dllCachePath = path.join(ROOT_PATH, `tmp/cache/webpack-dlls/${dllHash}`);
if (fs.existsSync(dllCachePath)) {
console.log(`Using vendor DLL found at: ${dllCachePath}`);
dll = {
manifestPath: path.join(dllCachePath, 'vendor.dll.manifest.json'),
cacheFrom: dllCachePath,
cacheTo: path.join(ROOT_PATH, `public/assets/webpack/dll.${dllHash}/`),
publicPath: `dll.${dllHash}/vendor.dll.bundle.js`,
};
} else {
console.log(`Warning: No vendor DLL found at: ${dllCachePath}. DllPlugin disabled.`);
}
}
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module.exports = {
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mode: IS_PRODUCTION ? 'production' : 'development',
context: path.join(ROOT_PATH, 'app/assets/javascripts'),
entry: generateEntries,
output: {
path: path.join(ROOT_PATH, 'public/assets/webpack'),
publicPath: '/assets/webpack/',
filename: IS_PRODUCTION ? '[name].[chunkhash:8].bundle.js' : '[name].bundle.js',
chunkFilename: IS_PRODUCTION ? '[name].[chunkhash:8].chunk.js' : '[name].chunk.js',
globalObject: 'this', // allow HMR and web workers to play nice
},
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resolve: {
extensions: ['.js', '.gql', '.graphql'],
alias,
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},
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module: {
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strictExportPresence: true,
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rules: [
{
type: 'javascript/auto',
test: /\.mjs$/,
use: [],
},
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{
test: /\.js$/,
exclude: path => /node_modules|vendor[\\/]assets/.test(path) && !/\.vue\.js/.test(path),
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loader: 'babel-loader',
options: {
cacheDirectory: path.join(CACHE_PATH, 'babel-loader'),
},
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},
{
test: /\.vue$/,
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loader: 'vue-loader',
options: {
cacheDirectory: path.join(CACHE_PATH, 'vue-loader'),
cacheIdentifier: [
process.env.NODE_ENV || 'development',
webpack.version,
VUE_VERSION,
VUE_LOADER_VERSION,
].join('|'),
},
},
{
test: /\.(graphql|gql)$/,
exclude: /node_modules/,
loader: 'graphql-tag/loader',
},
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{
test: /icons\.svg$/,
loader: 'file-loader',
options: {
name: '[name].[hash:8].[ext]',
},
},
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{
test: /\.svg$/,
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exclude: /icons\.svg$/,
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loader: 'raw-loader',
},
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{
test: /\.(gif|png|mp4)$/,
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loader: 'url-loader',
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options: { limit: 2048 },
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},
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{
test: /_worker\.js$/,
use: [
{
loader: 'worker-loader',
options: {
name: '[name].[hash:8].worker.js',
inline: IS_DEV_SERVER,
},
},
'babel-loader',
],
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},
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{
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test: /\.(worker(\.min)?\.js|pdf|bmpr)$/,
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exclude: /node_modules/,
loader: 'file-loader',
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options: {
name: '[name].[hash:8].[ext]',
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},
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},
{
test: /.css$/,
use: [
'vue-style-loader',
{
loader: 'css-loader',
options: {
name: '[name].[hash:8].[ext]',
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},
},
],
},
{
test: /\.(eot|ttf|woff|woff2)$/,
include: /node_modules\/katex\/dist\/fonts/,
loader: 'file-loader',
options: {
name: '[name].[hash:8].[ext]',
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},
},
],
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},
optimization: {
runtimeChunk: 'single',
splitChunks: {
maxInitialRequests: 4,
cacheGroups: {
default: false,
common: () => ({
priority: 20,
name: 'main',
chunks: 'initial',
minChunks: autoEntriesCount * 0.9,
}),
vendors: {
priority: 10,
chunks: 'async',
test: /[\\/](node_modules|vendor[\\/]assets[\\/]javascripts)[\\/]/,
},
commons: {
chunks: 'all',
minChunks: 2,
reuseExistingChunk: true,
},
},
},
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},
plugins: [
// manifest filename must match config.webpack.manifest_filename
// webpack-rails only needs assetsByChunkName to function properly
new StatsWriterPlugin({
filename: 'manifest.json',
transform: function(data, opts) {
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const stats = opts.compiler.getStats().toJson({
chunkModules: false,
source: false,
chunks: false,
modules: false,
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assets: true,
});
// tell our rails helper where to find the DLL files
if (dll) {
stats.dllAssets = dll.publicPath;
}
return JSON.stringify(stats, null, 2);
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},
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}),
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// enable vue-loader to use existing loader rules for other module types
new VueLoaderPlugin(),
// automatically configure monaco editor web workers
new MonacoWebpackPlugin(),
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// prevent pikaday from including moment.js
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new webpack.IgnorePlugin(/moment/, /pikaday/),
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// fix legacy jQuery plugins which depend on globals
new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery',
}),
// reference our compiled DLL modules
dll &&
new webpack.DllReferencePlugin({
context: ROOT_PATH,
manifest: dll.manifestPath,
}),
dll &&
new CopyWebpackPlugin([
{
from: dll.cacheFrom,
to: dll.cacheTo,
},
]),
!IS_EE &&
new webpack.NormalModuleReplacementPlugin(/^ee_component\/(.*)\.vue/, resource => {
resource.request = path.join(
ROOT_PATH,
'app/assets/javascripts/vue_shared/components/empty_component.js',
);
}),
new CopyWebpackPlugin([
{
from: path.join(ROOT_PATH, 'node_modules/pdfjs-dist/cmaps/'),
to: path.join(ROOT_PATH, 'public/assets/webpack/cmaps/'),
},
{
from: path.join(ROOT_PATH, 'node_modules/@sourcegraph/code-host-integration/'),
to: path.join(ROOT_PATH, 'public/assets/webpack/sourcegraph/'),
ignore: ['package.json'],
},
{
from: path.join(
ROOT_PATH,
'node_modules/@gitlab/visual-review-tools/dist/visual_review_toolbar.js',
),
to: path.join(ROOT_PATH, 'public/assets/webpack'),
},
]),
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// compression can require a lot of compute time and is disabled in CI
IS_PRODUCTION && !NO_COMPRESSION && new CompressionPlugin(),
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// WatchForChangesPlugin
// TODO: publish this as a separate plugin
IS_DEV_SERVER && {
apply(compiler) {
compiler.hooks.emit.tapAsync('WatchForChangesPlugin', (compilation, callback) => {
const missingDeps = Array.from(compilation.missingDependencies);
const nodeModulesPath = path.join(ROOT_PATH, 'node_modules');
const hasMissingNodeModules = missingDeps.some(
file => file.indexOf(nodeModulesPath) !== -1,
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);
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// watch for changes to missing node_modules
if (hasMissingNodeModules) compilation.contextDependencies.add(nodeModulesPath);
// watch for changes to automatic entrypoints
watchAutoEntries.forEach(watchPath => compilation.contextDependencies.add(watchPath));
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// report our auto-generated bundle count
console.log(
`${autoEntriesCount} entries from '/pages' automatically added to webpack output.`,
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);
callback();
});
},
},
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// output the in-memory heap size upon compilation and exit
WEBPACK_MEMORY_TEST && {
apply(compiler) {
compiler.hooks.emit.tapAsync('ReportMemoryConsumptionPlugin', (compilation, callback) => {
console.log('Assets compiled...');
if (global.gc) {
console.log('Running garbage collection...');
global.gc();
} else {
console.error(
"WARNING: you must use the --expose-gc node option to accurately measure webpack's heap size",
);
}
const memoryUsage = process.memoryUsage().heapUsed;
const toMB = bytes => Math.floor(bytes / 1024 / 1024);
console.log(`Webpack heap size: ${toMB(memoryUsage)} MB`);
const webpackStatistics = {
memoryUsage,
date: Date.now(), // milliseconds
commitSHA: process.env.CI_COMMIT_SHA,
nodeVersion: process.versions.node,
webpackVersion: WEBPACK_VERSION,
};
console.log(webpackStatistics);
fs.writeFileSync(
path.join(ROOT_PATH, 'webpack-dev-server.json'),
JSON.stringify(webpackStatistics),
);
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// exit in case we're running webpack-dev-server
IS_DEV_SERVER && process.exit();
});
},
},
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// enable HMR only in webpack-dev-server
DEV_SERVER_LIVERELOAD && new webpack.HotModuleReplacementPlugin(),
// optionally generate webpack bundle analysis
WEBPACK_REPORT &&
new BundleAnalyzerPlugin({
analyzerMode: 'static',
generateStatsFile: true,
openAnalyzer: false,
reportFilename: path.join(ROOT_PATH, 'webpack-report/index.html'),
statsFilename: path.join(ROOT_PATH, 'webpack-report/stats.json'),
statsOptions: {
source: false,
},
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}),
new webpack.DefinePlugin({
// This one is used to define window.gon.ee and other things properly in tests:
'process.env.IS_EE': JSON.stringify(IS_EE),
// This one is used to check against "EE" properly in application code
IS_EE: IS_EE ? 'window.gon && window.gon.ee' : JSON.stringify(false),
}),
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].filter(Boolean),
devServer: {
host: DEV_SERVER_HOST,
port: DEV_SERVER_PORT,
disableHostCheck: true,
headers: {
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Headers': '*',
},
stats: 'errors-only',
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hot: DEV_SERVER_LIVERELOAD,
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inline: DEV_SERVER_LIVERELOAD,
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},
devtool: NO_SOURCEMAPS ? false : devtool,
node: {
fs: 'empty', // sqljs requires fs
setImmediate: false,
},
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};