AFUP Lorraine - Symfony Webpack Encore
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Introduction to Symfony Webpack Encore, demonstrating how it helps with cache busting, using SASS, LESS, Typescript and so on.
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AFUP Lorraine - Symfony Webpack Encore
- 1. Symfony - Webpack Encore
- 2. Who am I? Backend developer PHP enthusiast CTO at Darkmira Freelance web architect Occasional lecturer Javascript hater! 2
- 3. Community involvement ScotlandPHP (conference, November 8th and 9th) DarkmiraTour Brasil (conference, June 7th to 9th) DijonTech (meetup, sometimes in March) AFUP Lorraine ("super apéro", March 14th, in a bar in Metz) 3
- 4. by SpaceFox article Sans déconner : après huit mois d'observation, ma conclusion la plus logique est que 95 % de la communauté Javascript est composée de macaques sous cocaïne. Je ne vois pas d'autres explication logique à l'état général de l'environnement. “ “ 4
- 5. 5
- 6. Javascript alternative? What a success! Q. Is Dart supported by my browser? Although no production browsers can execute Dart code directly, all modern browsers can execute Dart code that as been compiled to JavaScript. “ “ 6
- 7. by Krishna Chaitanya Acondy article Can Monkeys Write JavaScript? An Impartial Analysis “ “ 7
- 8. What's your task runner? Gulp Grunt Brunch Package manager? Bower NPM Yarn 8
- 10. ♥ Webpack ♥
- 11. 11
- 12. ♥ Webpack + Symfony ♥ Symfony Webpack Encore = Webpack made easy! Symfony ships with a pure-JavaScript library - called Webpack Encore - that makes working with CSS and JavaScript a joy. You can use it, use something else, or just create static CSS and JS les in your public/ directory and include them in your templates. “ “ 12
- 13. Basic usage: in a Symfony project 13
- 14. composer require symfony/skeleton myproject cd myproject composer require twig Add a route index: path: / controller: AppControllerHomepage::handle And create the controller and template. 14
- 15. final class Homepage { private $renderer; public function __construct(Environment $renderer) { $this->renderer = $renderer; } public function handle(): Response { return new Response($this->renderer->render( 'homepage.html.twig' )); } } 15
- 16. {% extends 'base.html.twig' %} {% block body %} <h1>Hello World!</h1> {% endblock %} {% block title %}Hello World!{% endblock %} <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>{% block title %}Welcome!{% endblock %}</title {% block stylesheets %}{% endblock %} </head> <body> {% block body %}{% endblock %} {% block javascripts %}{% endblock %} </body> </html> 16
- 17. 17
- 18. Adding Bootstrap CDN? <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/c <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/ 18
- 19. Adding Bootstrap Downloading les manually? <script src="{{ asset('js/bootstrap.min.js') }}"></script> <link href="{{ asset('css/bootstrap.min.css') }}" rel="styleshee 19
- 20. Adding Bootstrap composer require encore Adds package.json webpack.config.js config/packages/webpack_encore.yaml assets css => app.css js => app.js 20
- 21. Install yarn dependencies yarn install Adds node_modules 21
- 22. config/packages/webpack_encore.yaml webpack_encore: # The path where Encore is building the assets. # This should match Encore.setOutputPath() in webpack.config output_path: '%kernel.project_dir%/public/build' 22
- 23. package.json { "devDependencies": { "@symfony/webpack-encore": "^0.22.0", "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" } } 23
- 24. webpack.config.js var Encore = require('@symfony/webpack-encore'); Encore .setOutputPath('public/build/') .setPublicPath('/build') .addEntry('app', './assets/js/app.js') .enableSingleRuntimeChunk() .cleanupOutputBeforeBuild() .enableBuildNotifications() .enableSourceMaps(!Encore.isProduction()) // enables hashed filenames (e.g. app.abc123.css) .enableVersioning(Encore.isProduction()) ; module.exports = Encore.getWebpackConfig(); 24
- 25. assets/js/app.js assets/css/app.css body { background-color: lightgray; } require('../css/app.css'); console.log('Hello Webpack Encore! Edit me in assets/js/app.js' 25
- 26. Add assets to the template {% block stylesheets %} {{ encore_entry_link_tags('app') }} {% endblock %} {% block javascripts %} {{ encore_entry_script_tags('app') }} {% endblock %} 26
- 28. 28
- 29. Still no Bootstrap... yarn add bootstrap jquery popper.js assets/js/app.js yarn encore dev --watch require('../css/app.css'); require('../../node_modules/bootstrap/dist/css/bootstrap.css' require('bootstrap'); 29
- 30. 30
- 31. Wahoo! It really saved me some time! - Said no one, ever “ “ 31
- 32. Enable extra features Override bootstrap the right way: yarn add sass-loader node-sass --dev assets/js/app/js // import '../css/app.css'; import '../scss/app.scss'; webpack.config.js Encore .enableSassLoader() ; 32
- 33. assets/js/app.js require('../scss/app.scss'); assets/scss/app.scss $red: purple !default; @import "~bootstrap/scss/bootstrap"; Ref: node_modules/bootstrap/scss/_variables.scss 33
- 34. 34
- 36. public/build/entrypoints.json { "entrypoints": { "app": { "js": [ "/build/runtime.js", "/build/app.js" ], "css": [ "/build/app.css" ] } } } 36
- 37. public/build/manifest.json { "build/app.css": "/build/app.css", "build/app.js": "/build/app.js", "build/runtime.js": "/build/runtime.js" } 37
- 38. Let's generate for prod yarn encore prod webpack.config.js : .enableVersioning(Encore.isProduction()) 38
- 40. public/build/manifest.json { "build/app.css": "/build/app.c12d85ce.css", "build/app.js": "/build/app.27210d01.js", "build/runtime.js": "/build/runtime.fa8f03f5.js" } 40
- 41. public/build/entrypoints.json { "entrypoints": { "app": { "js": [ "/build/runtime.fa8f03f5.js", "/build/app.27210d01.js" ], "css": [ "/build/app.c12d85ce.css" ] } } } 41
- 42. Add an image to the template Add the image assets/image/webpack.svg Edit assets/js/app.js , add require('../image/webpack.svg'); Edit templates/homepage.html.twig , add the image tag: The image bene ts of the cache busting/asset versioning policy. <img src="{{ asset('build/images/webpack.svg') }}" alt="Demo ima 42
- 43. You might not need everything everywhere! 43
- 44. Use entries webpack.config.js : Encore .addEntry('app', './assets/js/app.js') .addEntry('home', './assets/js/home.js') ; assets/js/app.js : require('../scss/app.scss'); assets/js/home.js : require('../image/webpack.svg'); 44
- 45. Update the template templates/homepage.html.twig : {% block stylesheets %} {{ encore_entry_link_tags('app') }} {{ encore_entry_link_tags('home') }} {% endblock %} {% block javascripts %} {{ encore_entry_script_tags('app') }} {{ encore_entry_script_tags('home') }} {% endblock %} 45
- 47. No! Typescript FTW yarn add ts-loader typescript --dev tsconfig.json : {} webpack.config.js : Encore .enableTypeScriptLoader() ; 47
- 48. assets/ts/Person.ts : export interface Person { firstName: string; lastName: string; } assets/ts/LambdaPerson.ts : import {Person} from "./Person"; export class LabdaPerson implements Person { public constructor(public firstName: string, public lastName } } 48
- 49. assets/ts/Greeter.ts : assets/js/app.js : import {Person} from "./Person"; export function greeter(person: Person) { return "Hello, " + person.firstName + " " + person.lastName; } import {greeter} from "../ts/Greeter"; import {LabdaPerson} from "../ts/LambdaPerson"; require('../scss/app.scss'); require('../image/webpack.svg'); let user = new LabdaPerson('Jane', 'Doe'); document.getElementById('hello').innerHTML = greeter(user);49
- 50. 50
- 51. Standalone Webpack encore only, no composer required: yarn add @symfony/webpack-encore --dev Create your own webpack.config.js . Read from public/build/entrypoints.json and public/build/manifest.json 51
- 52. Javascript with almost no Javascript?