/* eslint-env node */ 'use strict'; var Merge = require('webpack-merge'); var webpack = require('webpack'); var BundleTracker = require('webpack-bundle-tracker'); var _ = require('underscore'); const TerserPlugin = require("terser-webpack-plugin"); var commonConfig = require('./webpack.common.config.js'); var optimizedConfig = Merge.smart(commonConfig, { web: { output: { filename: '[name].[chunkhash].js' }, devtool: false, plugins: [ new webpack.DefinePlugin({ 'process.env.NODE_ENV': JSON.stringify('production'), 'process.env.JS_ENV_EXTRA_CONFIG': process.env.JS_ENV_EXTRA_CONFIG || '{}' }), new webpack.LoaderOptionsPlugin({ // This may not be needed; legacy option for loaders written for webpack 1 minimize: true }) ], optimization: { minimize: true, minimizer: [ new TerserPlugin(), ], } } }); // requireCompatConfig only exists so that you can use RequireJS to require a // Webpack bundle (but try not to do that if you can help it). RequireJS knows // where to find named bundle output files, but doesn't know about // prod-optimized bundles. So we make a redundant Webpack target that exists // only to make a version of all the bundles without the chunkhash in the // filename. That way, RequireJS can always find them. // // To be clear, this is a bad hack that exists to keep RequireJS from breaking // for the short term. We're actively ripping RequireJS out of edx-platform // entirely, and requireCompatConfig can completely disappear after RequireJS is // gone. // Step 1: Alter the bundle output names to omit the chunkhash. var requireCompatConfig = Merge.smart(optimizedConfig, { web: { output: { filename: '[name].js' } } }); // Step 2: Remove the plugin entries that generate the webpack-stats.json files // that Django needs to look up resources. We never want to accidentally // overwrite those because it means that we'll be serving assets with shorter // cache times. RequireJS never looks at the webpack-stats.json file. requireCompatConfig.web.plugins = requireCompatConfig.web.plugins.filter((plugin) => !(plugin instanceof BundleTracker)); module.exports = [..._.values(optimizedConfig), ..._.values(requireCompatConfig)];