webpack.config.js

var Encore = require('@symfony/webpack-encore');
// Manually configure the runtime environment if not already configured yet by the "encore" command.
// It's useful when you use tools that rely on webpack.config.js file.
if (!Encore.isRuntimeEnvironmentConfigured()) {
    Encore.configureRuntimeEnvironment(process.env.NODE_ENV || 'dev');
}

Encore
  // directory where compiled assets will be stored
  .setOutputPath('apps/public/assets/')
  // public path used by the web server to access the output path
  .setPublicPath('/assets')
  // only needed for CDN's or sub-directory deploy
  .setManifestKeyPrefix('assets/')
  .copyFiles([
    {from: './node_modules/tarteaucitronjs', to: 'tarteaucitron/[path][name].[ext]', pattern: /\.(js)$/, includeSubdirectories: false},
    {from: './node_modules/tarteaucitronjs/css', to: 'tarteaucitron/css/[path][name].[ext]'},
    {from: './node_modules/tarteaucitronjs/lang', to: 'tarteaucitron/lang/[path][name].[ext]'},
    {from: './node_modules/ckeditor4/', to: 'ckeditor/[path][name].[ext]', pattern: /\.(js|css)$/, includeSubdirectories: false},
    {from: './node_modules/ckeditor4/adapters', to: 'ckeditor/adapters/[path][name].[ext]'},
    {from: './node_modules/ckeditor4/lang', to: 'ckeditor/lang/[path][name].[ext]'},
    {from: './node_modules/ckeditor4/plugins', to: 'ckeditor/plugins/[path][name].[ext]'},
    {from: './node_modules/ckeditor4/skins', to: 'ckeditor/skins/[path][name].[ext]'},
    {from: './node_modules/ckeditor4/vendor', to: 'ckeditor/vendor/[path][name].[ext]'}
  ])
  /*
   * ENTRY CONFIG
   *
   * Each entry will result in one JavaScript file (e.g. app.js)
   * and one CSS file (e.g. app.css) if your JavaScript imports CSS.
   */
  .addEntry("front", ["./assets/js/front.js", "./assets/scss/front.scss"])
  .addEntry("back", ["./assets/js/back.js", "./assets/scss/back.scss"])

  // enables the Symfony UX Stimulus bridge (used in assets/bootstrap.js)
  // .enableStimulusBridge('./assets/controllers.json')

  // When enabled, Webpack "splits" your files into smaller pieces for greater optimization.
  .splitEntryChunks()

  // will require an extra script tag for runtime.js
  // but, you probably want this, unless you're building a single-page app
  // .enableSingleRuntimeChunk()
  .disableSingleRuntimeChunk()

  /*
   * FEATURE CONFIG
   *
   * Enable & configure other features below. For a full
   * list of features, see:
   * https://symfony.com/doc/current/frontend.html#adding-more-features
   */
  .cleanupOutputBeforeBuild()
  .enableBuildNotifications()
  .enableSourceMaps(!Encore.isProduction())
  // enables hashed filenames (e.g. app.abc123.css)
  .enableVersioning(true)

  // enables @babel/preset-env polyfills
  .configureBabelPresetEnv((config) => {
    config.useBuiltIns = 'usage';
    config.corejs = 3;
  })

  // enables Sass/SCSS support
  .enableSassLoader()

  // uncomment if you use TypeScript
  //.enableTypeScriptLoader()

  // uncomment if you use React
  //.enableReactPreset()

  // uncomment to get integrity="..." attributes on your script & link tags
  // requires WebpackEncoreBundle 1.4 or higher
  .enableIntegrityHashes(true)

  // uncomment if you're having problems with a jQuery plugin
  // .autoProvidejQuery()
  .configureDevServerOptions(options => {
    options.allowedHosts = 'all';
  })
;

var config = Encore.getWebpackConfig();
module.exports = config;