add webpack-encore-bundle requirement

app/.gitignore

@@ -8,3 +8,10 @@
 /var/
 /vendor/
 ###< symfony/framework-bundle ###
+
+###> symfony/webpack-encore-bundle ###
+/node_modules/
+/public/build/
+npm-debug.log
+yarn-error.log
+###< symfony/webpack-encore-bundle ###

app/assets/app.js

@@ -0,0 +1,12 @@
+/*
+ * Welcome to your app's main JavaScript file!
+ *
+ * We recommend including the built version of this JavaScript file
+ * (and its CSS file) in your base layout (base.html.twig).
+ */
+
+// any CSS you import will output into a single css file (app.css in this case)
+import './styles/app.css';
+
+// start the Stimulus application
+import './bootstrap';

app/assets/bootstrap.js

@@ -0,0 +1,11 @@
+import { startStimulusApp } from '@symfony/stimulus-bridge';
+
+// Registers Stimulus controllers from controllers.json and in the controllers/ directory
+export const app = startStimulusApp(require.context(
+    '@symfony/stimulus-bridge/lazy-controller-loader!./controllers',
+    true,
+    /\.(j|t)sx?$/
+));
+
+// register any custom, 3rd party controllers here
+// app.register('some_controller_name', SomeImportedController);

app/assets/controllers.json

@@ -0,0 +1,4 @@
+{
+    "controllers": [],
+    "entrypoints": []
+}

app/assets/controllers/hello_controller.js

@@ -0,0 +1,16 @@
+import { Controller } from 'stimulus';
+
+/*
+ * This is an example Stimulus controller!
+ *
+ * Any element with a data-controller="hello" attribute will cause
+ * this controller to be executed. The name "hello" comes from the filename:
+ * hello_controller.js -> "hello"
+ *
+ * Delete this file or adapt it for your use!
+ */
+export default class extends Controller {
+    connect() {
+        this.element.textContent = 'Hello Stimulus! Edit me in assets/controllers/hello_controller.js';
+    }
+}

app/assets/styles/app.css

@@ -0,0 +1,3 @@
+body {
+    background-color: lightgray;
+}

app/composer.json

@@ -22,6 +22,7 @@
         "symfony/security-csrf": "5.2.*",
         "symfony/twig-bundle": "5.2.*",
         "symfony/validator": "5.2.*",
+        "symfony/webpack-encore-bundle": "^1.11",
         "symfony/yaml": "5.2.*",
         "twig/extra-bundle": "^2.12|^3.0",
         "twig/twig": "^2.12|^3.0"

app/composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "6ffdfc77c62b6c1629f78d627f78e302",
+    "content-hash": "f25be7488ec574d0180bd5b54fd2544d",
     "packages": [
         {
             "name": "composer/package-versions-deprecated",
@@ -2034,6 +2034,75 @@
             },
             "time": "2021-04-09T16:14:11+00:00"
         },
+        {
+            "name": "symfony/asset",
+            "version": "v5.2.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/asset.git",
+                "reference": "54a42aa50f9359d1184bf7e954521b45ca3d5828"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/asset/zipball/54a42aa50f9359d1184bf7e954521b45ca3d5828",
+                "reference": "54a42aa50f9359d1184bf7e954521b45ca3d5828",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.5"
+            },
+            "require-dev": {
+                "symfony/http-client": "^4.4|^5.0",
+                "symfony/http-foundation": "^4.4|^5.0",
+                "symfony/http-kernel": "^4.4|^5.0"
+            },
+            "suggest": {
+                "symfony/http-foundation": ""
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Asset\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Manages URL generation and versioning of web assets such as CSS stylesheets, JavaScript files and image files",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/asset/tree/v5.2.4"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-01-27T10:01:46+00:00"
+        },
         {
             "name": "symfony/cache",
             "version": "v5.2.6",
@@ -5667,6 +5736,77 @@
             ],
             "time": "2021-01-27T10:01:46+00:00"
         },
+        {
+            "name": "symfony/webpack-encore-bundle",
+            "version": "v1.11.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/webpack-encore-bundle.git",
+                "reference": "395b60a549ded8e7f77f0d551815d7555e2d9eb0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/webpack-encore-bundle/zipball/395b60a549ded8e7f77f0d551815d7555e2d9eb0",
+                "reference": "395b60a549ded8e7f77f0d551815d7555e2d9eb0",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1.3",
+                "symfony/asset": "^4.4 || ^5.0",
+                "symfony/config": "^4.4 || ^5.0",
+                "symfony/dependency-injection": "^4.4 || ^5.0",
+                "symfony/http-kernel": "^4.4 || ^5.0",
+                "symfony/service-contracts": "^1.0 || ^2.0"
+            },
+            "require-dev": {
+                "symfony/framework-bundle": "^4.4 || ^5.0",
+                "symfony/phpunit-bridge": "^4.4 || ^5.0",
+                "symfony/twig-bundle": "^4.4 || ^5.0",
+                "symfony/web-link": "^4.4 || ^5.0"
+            },
+            "type": "symfony-bundle",
+            "extra": {
+                "thanks": {
+                    "name": "symfony/webpack-encore",
+                    "url": "https://github.com/symfony/webpack-encore"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\WebpackEncoreBundle\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Integration with your Symfony app & Webpack Encore!",
+            "support": {
+                "issues": "https://github.com/symfony/webpack-encore-bundle/issues",
+                "source": "https://github.com/symfony/webpack-encore-bundle/tree/v1.11.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-02-17T13:45:51+00:00"
+        },
         {
             "name": "symfony/yaml",
             "version": "v5.2.5",

app/config/bundles.php

@@ -9,4 +9,5 @@ return [
     Symfony\Bundle\TwigBundle\TwigBundle::class => ['all' => true],
     Twig\Extra\TwigExtraBundle\TwigExtraBundle::class => ['all' => true],
     Symfony\Bundle\WebProfilerBundle\WebProfilerBundle::class => ['dev' => true, 'test' => true],
+    Symfony\WebpackEncoreBundle\WebpackEncoreBundle::class => ['all' => true],
 ];

app/config/packages/assets.yaml

@@ -0,0 +1,3 @@
+framework:
+    assets:
+        json_manifest_path: '%kernel.project_dir%/public/build/manifest.json'

app/config/packages/prod/webpack_encore.yaml

@@ -0,0 +1,4 @@
+#webpack_encore:
+    # Cache the entrypoints.json (rebuild Symfony's cache when entrypoints.json changes)
+    # Available in version 1.2
+    #cache: true

app/config/packages/test/webpack_encore.yaml

@@ -0,0 +1,2 @@
+#webpack_encore:
+#    strict_mode: false

app/config/packages/webpack_encore.yaml

@@ -0,0 +1,30 @@
+webpack_encore:
+    # The path where Encore is building the assets - i.e. Encore.setOutputPath()
+    output_path: '%kernel.project_dir%/public/build'
+    # If multiple builds are defined (as shown below), you can disable the default build:
+    # output_path: false
+
+    # Set attributes that will be rendered on all script and link tags
+    script_attributes:
+        defer: true
+    # link_attributes:
+
+    # If using Encore.enableIntegrityHashes() and need the crossorigin attribute (default: false, or use 'anonymous' or 'use-credentials')
+    # crossorigin: 'anonymous'
+
+    # Preload all rendered script and link tags automatically via the HTTP/2 Link header
+    # preload: true
+
+    # Throw an exception if the entrypoints.json file is missing or an entry is missing from the data
+    # strict_mode: false
+
+    # If you have multiple builds:
+    # builds:
+        # pass "frontend" as the 3rg arg to the Twig functions
+        # {{ encore_entry_script_tags('entry1', null, 'frontend') }}
+
+        # frontend: '%kernel.project_dir%/public/frontend/build'
+
+    # Cache the entrypoints.json (rebuild Symfony's cache when entrypoints.json changes)
+    # Put in config/packages/prod/webpack_encore.yaml
+    # cache: true

app/package.json

@@ -0,0 +1,18 @@
+{
+    "devDependencies": {
+        "@symfony/stimulus-bridge": "^2.0.0",
+        "@symfony/webpack-encore": "^1.0.0",
+        "core-js": "^3.0.0",
+        "regenerator-runtime": "^0.13.2",
+        "stimulus": "^2.0.0",
+        "webpack-notifier": "^1.6.0"
+    },
+    "license": "UNLICENSED",
+    "private": true,
+    "scripts": {
+        "dev-server": "encore dev-server",
+        "dev": "encore dev",
+        "watch": "encore dev --watch",
+        "build": "encore production --progress"
+    }
+}

app/symfony.lock

@@ -121,6 +121,9 @@
             "config/packages/sensio_framework_extra.yaml"
         ]
     },
+    "symfony/asset": {
+        "version": "v5.2.4"
+    },
     "symfony/cache": {
         "version": "v5.2.6"
     },
@@ -346,6 +349,28 @@
             "config/routes/dev/web_profiler.yaml"
         ]
     },
+    "symfony/webpack-encore-bundle": {
+        "version": "1.9",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "master",
+            "version": "1.9",
+            "ref": "9399a0bfc6ee7a0c019f952bca46d6a6045dd451"
+        },
+        "files": [
+            "assets/app.js",
+            "assets/bootstrap.js",
+            "assets/controllers.json",
+            "assets/controllers/hello_controller.js",
+            "assets/styles/app.css",
+            "config/packages/assets.yaml",
+            "config/packages/prod/webpack_encore.yaml",
+            "config/packages/test/webpack_encore.yaml",
+            "config/packages/webpack_encore.yaml",
+            "package.json",
+            "webpack.config.js"
+        ]
+    },
     "symfony/yaml": {
         "version": "v5.2.5"
     },

app/webpack.config.js

@@ -0,0 +1,75 @@
+const 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('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/')
+
+    /*
+     * 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('app', './assets/app.js')
+
+    // 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()
+
+    /*
+     * 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())
+
+    .configureBabel((config) => {
+        config.plugins.push('@babel/plugin-proposal-class-properties');
+    })
+
+    // 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(Encore.isProduction())
+
+    // uncomment if you're having problems with a jQuery plugin
+    //.autoProvidejQuery()
+;
+
+module.exports = Encore.getWebpackConfig();