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webpack.config.js
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webpack.config.js
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const CircularDependencyPlugin = require('circular-dependency-plugin');
const EventEmitter = require('events');
const { copyFileSync } = require('fs');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { join } = require('path');
const StyleLintPlugin = require('stylelint-webpack-plugin');
const { DefinePlugin } = require('webpack');
const WebpackAssetsManifest = require('webpack-assets-manifest');
const {
AsyncHookPlugin,
BuildHookPlugin,
getLoaderPackages: { aliasMap: alias, tsLoaderIncludes },
getNextVersion,
mergeManifests,
transformManifest,
} = require('./scripts/webpack');
const ENTRY_NAME = 'checkout';
const LIBRARY_NAME = 'checkout';
const AUTO_LOADER_ENTRY_NAME = 'auto-loader';
const LOADER_ENTRY_NAME = 'loader';
const LOADER_LIBRARY_NAME = 'checkoutLoader';
const BABEL_PRESET_ENV_CONFIG = {
corejs: '3',
targets: {
browsers: [
'last 2 versions',
'not ie < 11',
'not Baidu > 0',
'not QQAndroid > 0',
'not Android < 62',
],
},
useBuiltIns: 'usage',
modules: false,
};
const PRELOAD_ASSETS = ['billing', 'shipping', 'payment'];
const eventEmitter = new EventEmitter();
function appConfig(options, argv) {
const mode = argv.mode || 'production';
const isProduction = mode !== 'development';
const outputFilename = `[name]${isProduction ? '-[contenthash:8]' : ''}`;
return (isProduction ? getNextVersion() : Promise.resolve('dev'))
.then(appVersion => {
return {
entry: {
[ENTRY_NAME]: [
join(__dirname, 'packages', 'core','src', 'app', 'polyfill.ts'),
join(__dirname, 'packages', 'core','src', 'app', 'index.ts'),
],
},
mode,
devtool: isProduction ? 'source-map' : 'eval-source-map',
resolve: {
alias,
extensions: ['.ts', '.tsx', '.js'],
// It seems some packages, i.e.: Formik, have incorrect
// source maps for their ESM bundle. Therefore, until that
// issue is fixed, we prefer to resolve packages using the
// `main` field rather `module` field.
mainFields: ['browser', 'main', 'module'],
},
optimization: {
runtimeChunk: 'single',
minimizer: [
(compiler) => {
const TerserPlugin = require('terser-webpack-plugin');
new TerserPlugin({
extractComments: false,
terserOptions: {
sourceMap: true,
},
}).apply(compiler);
},
],
splitChunks: {
chunks: 'all',
cacheGroups: {
vendors: {
test: /\/node_modules\//,
reuseExistingChunk: true,
enforce: true,
priority: -10,
name: 'vendors',
},
polyfill: {
test: /\/node_modules\/core-js/,
reuseExistingChunk: true,
enforce: true,
name: 'polyfill',
},
transients: {
test: /\/node_modules\/@bigcommerce/,
reuseExistingChunk: true,
enforce: true,
name: 'transients',
},
sentry: {
test: /\/node_modules\/@sentry/,
reuseExistingChunk: true,
enforce: true,
name: 'sentry',
},
},
},
},
output: {
path: isProduction ? join(__dirname, 'dist') : join(__dirname, 'build'),
filename: `${outputFilename}.js`,
chunkFilename: `${outputFilename}.js`,
chunkLoadingGlobal: 'webpackJsonpCheckout',
library: LIBRARY_NAME,
},
plugins: [
new StyleLintPlugin({
fix: !isProduction,
cache: true,
cacheLocation: join(process.cwd(), 'node_modules/.cache/'),
emitErrors: isProduction,
}),
isProduction && new MiniCssExtractPlugin({
filename: `${outputFilename}.css`,
chunkFilename: `${outputFilename}.css`,
}),
new CircularDependencyPlugin({
exclude: /.*\.spec\.tsx?/,
include: /packages\/core\/src\/app/,
}),
new WebpackAssetsManifest({
entrypoints: true,
transform: assets => transformManifest(assets, appVersion),
output: 'manifest-app.json',
integrity: true,
}),
new BuildHookPlugin({
onSuccess() {
eventEmitter.emit('app:done');
},
onError(errors) {
eventEmitter.emit('app:error', errors);
},
}),
].filter(Boolean),
module: {
rules: [
{
test: /\.[tj]sx?$/,
enforce: 'pre',
loader: require.resolve('source-map-loader'),
},
{
test: /\.tsx?$/,
include: tsLoaderIncludes,
use: [
{
loader: 'ts-loader',
options: {
onlyCompileBundledFiles: true,
},
},
],
},
{
test: /app\/polyfill\.ts$/,
include: [
join(__dirname, 'packages', 'core', 'src'),
join(__dirname, 'packages', 'locale', 'src'),
join(__dirname, 'packages', 'test-mocks', 'src'),
],
use: [
{
loader: 'babel-loader',
options: {
cacheDirectory: true,
presets: [
['@babel/preset-env', {
...BABEL_PRESET_ENV_CONFIG,
useBuiltIns: 'entry',
}],
],
},
},
],
},
{
test: /\.js$/,
loader: 'babel-loader',
include: join(__dirname, 'node_modules'),
exclude: [
/\/node_modules\/core-js\//,
/\/node_modules\/webpack\//,
],
options: {
presets: [
['@babel/preset-env', BABEL_PRESET_ENV_CONFIG],
],
sourceType: 'unambiguous',
},
},
{
test: /\.scss$/,
use: [
isProduction ? MiniCssExtractPlugin.loader : 'style-loader',
'css-loader',
'sass-loader',
],
sideEffects: true,
},
{
test: /\.(gif|png|jpe?g|svg)$/i,
use: [
{
loader: 'file-loader',
options: {
name: `${outputFilename}.[ext]`,
outputPath: 'static',
},
},
{
loader: 'image-webpack-loader',
options: {
disable: true,
},
},
],
},
],
},
};
});
}
function loaderConfig(options, argv) {
const mode = argv.mode || 'production';
const isProduction = mode !== 'development';
return (isProduction ? getNextVersion() : Promise.resolve('dev'))
.then(appVersion => {
return {
entry: {
[LOADER_ENTRY_NAME]: join(__dirname, 'packages', 'core','src', 'app', 'loader.ts'),
[AUTO_LOADER_ENTRY_NAME]: join(__dirname, 'packages', 'core', 'src', 'app', 'auto-loader.ts'),
},
mode,
devtool: isProduction ? 'source-map' : 'eval-source-map',
resolve: {
alias,
extensions: ['.ts', '.tsx', '.js'],
mainFields: ['module', 'browser', 'main'],
},
output: {
path: isProduction ? join(__dirname, 'dist') : join(__dirname, 'build'),
filename: `[name]-${appVersion}.js`,
library: LOADER_LIBRARY_NAME,
},
plugins: [
new AsyncHookPlugin({
onRun({ compiler, done }) {
let wasTriggeredBefore = false;
eventEmitter.on('app:done', () => {
if (!wasTriggeredBefore) {
const definePlugin = new DefinePlugin({
LIBRARY_NAME: JSON.stringify(LIBRARY_NAME),
PRELOAD_ASSETS: JSON.stringify(PRELOAD_ASSETS),
MANIFEST_JSON: JSON.stringify(require(
join(__dirname, isProduction ? 'dist' : 'build', 'manifest-app.json')
)),
});
definePlugin.apply(compiler);
eventEmitter.emit('loader:done');
done();
wasTriggeredBefore = true;
}
});
eventEmitter.on('app:error', () => {
eventEmitter.emit('loader:error');
done();
});
},
}),
new BuildHookPlugin({
onSuccess() {
const folder = isProduction ? 'dist' : 'build';
copyFileSync(`${folder}/${LOADER_ENTRY_NAME}-${appVersion}.js`, `${folder}/${LOADER_ENTRY_NAME}.js`);
copyFileSync(`${folder}/${AUTO_LOADER_ENTRY_NAME}-${appVersion}.js`, `${folder}/${AUTO_LOADER_ENTRY_NAME}.js`);
},
}),
new WebpackAssetsManifest({
entrypoints: true,
transform: assets => transformManifest(assets, appVersion),
output: 'manifest-loader.json',
integrity: true,
done(_, { compilation: { errors = [] } }) {
if (errors.length) {
return;
}
const folder = isProduction ? 'dist' : 'build';
mergeManifests(
join(__dirname, folder, 'manifest.json'),
join(__dirname, folder, 'manifest-app.json'),
join(__dirname, folder, 'manifest-loader.json'),
);
}
}),
],
module: {
rules: [
{
test: /\.[tj]sx?$/,
enforce: 'pre',
loader: require.resolve('source-map-loader'),
},
{
test: /\.tsx?$/,
include: [
join(__dirname, 'packages', 'core', 'src'),
join(__dirname, 'packages', 'dom-utils', 'src'),
join(__dirname, 'packages', 'legacy-hoc', 'src'),
join(__dirname, 'packages', 'locale', 'src'),
join(__dirname, 'packages', 'test-mocks', 'src'),
],
use: [
{
loader: 'babel-loader',
options: {
cacheDirectory: true,
presets: [
['@babel/preset-env', BABEL_PRESET_ENV_CONFIG],
],
},
},
{
loader: 'ts-loader',
options: {
onlyCompileBundledFiles: true,
},
},
],
},
{
test: /\.js$/,
loader: 'babel-loader',
include: join(__dirname, 'node_modules'),
exclude: [
/\/node_modules\/core-js\//,
/\/node_modules\/webpack\//,
],
options: {
presets: [
['@babel/preset-env', BABEL_PRESET_ENV_CONFIG],
],
sourceType: 'unambiguous',
},
},
],
},
};
});
}
module.exports = function (options, argv) {
return Promise.all([
appConfig(options, argv),
loaderConfig(options, argv),
]);
}