webpack.config.js

const Encore = require('@symfony/webpack-encore');
const path = require('path');
//const HtmlWebpackPlugin = require('html-webpack-plugin');

// 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('public/build/')
  // public path used by the web server to access the output path
  .setPublicPath('/build')
  // only needed for CDN's or sub-directory deploy
  //.setManifestKeyPrefix('build/')
  .copyFiles({
    from: './resources/assets/media',
    to: 'media/[path][name].[ext]',
    pattern: /\.(png|jpg|jpeg|svg)$/
  })
  .copyFiles({
    from: './resources/assets/fonts',
    to: 'fonts/[path][name].[ext]',
    pattern: /\.(ttf)$/
  })
  /*
   * ENTRY CONFIG
   *
   * Add 1 entry for each "page" of your app
   * (including one that's included on every page - e.g. "app")
   *
   * Each entry will result in one JavaScript file (e.g. main.js)
   * and one CSS file (e.g. app.css) if you JavaScript imports CSS.
   */
  .addEntry('main', './resources/main.ts')
  //.addEntry('page1', './assets/js/page1.js')
  //.addEntry('page2', './assets/js/page2.js')

  // When enabled, Webpack "splits" your files into smaller pieces for greater optimization.
  .splitEntryChunks()
  .configureSplitChunks(function(splitChunks) {
    splitChunks.minSize = 20000;
  })
  // will require an extra script tag for runtime.js
  // but, you probably want this, unless you're building a single-page app
  .enableSingleRuntimeChunk()

  /*
   * 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(Encore.isProduction())

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

  // enables Sass/SCSS support
  .enableSassLoader()

  // enables Vue support
  .enableVueLoader(() => {
  }, {
    version: 3,
    runtimeCompilerBuild: false //if using only single file components, this is not needed (https://symfony.com/doc/current/frontend/encore/vuejs.html#runtime-compiler-build)

  })
  // uncomment if you use TypeScript
  .enableTypeScriptLoader(options => {
    options.appendTsSuffixTo = [/\.vue$/];
  })
  //.enableForkedTypeScriptTypesChecking()
  /*.addPlugin(new HtmlWebpackPlugin({
    template: './src/templates/app.html.twig',
  }))*/

  // uncomment if you're having problems with a jQuery plugin
  .autoProvidejQuery()
  .addAliases({
    'resources': path.resolve('./resources')
  })

  /*.addPlugin(
    new webpack.DefinePlugin({
      // Drop Options API from bundle
      __VUE_OPTIONS_API__: false,
      __VUE_PROD_DEVTOOLS__: false
    })
  )*/


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


// uncomment if you use API Platform Admin (composer req api-admin)
//.enableReactPreset()
//.addEntry('admin', './assets/js/admin.js')
;

module.exports = Encore.getWebpackConfig();