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Add WebP support and update dependencies#486

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cedric07 wants to merge 11 commits intomasterfrom
feat/webp
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Add WebP support and update dependencies#486
cedric07 wants to merge 11 commits intomasterfrom
feat/webp

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@cedric07
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@cedric07 cedric07 commented Apr 24, 2026

  • Added imagemin-webp to package.json and updated yarn.lock.
  • Configured WebP generation in webpack.common.js.
  • Updated SCSS files to support WebP images.
  • Removed obsolete logo SVG file.

Sur la base de cette doc : https://webpack.js.org/plugins/image-minimizer-webpack-plugin/#loader-generator-example-for-imagemin

Par défaut webpack va garder également le fichier non converti dans le dossier compilé.

Pour l'appel au fichier dans le code, il faut lui passer l'option presetdu generator : ?as=webp

Exemple : background-image: url(../img/static/logo.jpg?as=webp) et Webpack viendra automatiquement convertir le fichier en webp et remplacer l'url : background-image: url(images/logo.webp)

Exemple : background-image: url(../img/static/logo.jpg) et Webpack ne fera pas la conversion et gardera le fichier jpg : background-image: url(images/logo.jpg)

La conversion se fait au yarn build

Si elle doit se faire aussi en mode dev, il faudrait déplacer le code au dessus :

module.exports = {
	entry: entries,
	output: { ... },
	plugins: [
		// 1. Le générateur va ici pour fonctionner en DEV et en PROD
		new ImageMinimizerPlugin({
			generator: [
				{
					preset: 'webp',
					implementation: ImageMinimizerPlugin.imageminGenerate,
					options: {
						plugins: ['imagemin-webp'],
					},
				},
			],
		}),
	],
	optimization: {
		minimizer: [
			// 2. La minification classique reste ici, elle ne tournera qu'en PROD
			new ImageMinimizerPlugin({ ... }),
		],
	},
}

Note

Medium Risk
Touches the webpack production build pipeline (image minification and default image generation) and asset formats, which can change compiled output and potentially break image references if any paths/extensions are missed.

Overview
Switches default generated/static images from JPG to WebP: WebpackImageSizesPlugin now generates defaults from default.webp in webp format, and the login stylesheet points the logo to logo.webp.

Moves image optimization to the production plugin stack by adding image-minimizer-webpack-plugin (with imagemin + SVGO config) in config/plugins.js and removing the previous optimizer wiring from webpack.common.js.

Updates CI to use Corepack + actions/setup-node@v4 with Yarn caching, removes an unused SCSS mixin file, deletes an obsolete SVG asset, and bumps caniuse-lite in yarn.lock.

Reviewed by Cursor Bugbot for commit fc805ae. Bugbot is set up for automated code reviews on this repo. Configure here.

Comment thread src/scss/02-tools/_m-background-static.scss Outdated
@francoistibo
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forcer la transformation de toutes les images en WebP

@francoistibo
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tester composer cs pour fix les warnings

cedric07 and others added 2 commits April 24, 2026 12:20
- Added imagemin-webp to package.json and updated yarn.lock.
- Configured WebP generation in webpack.common.js.
- Updated SCSS files to support WebP images.
- Removed obsolete logo SVG file.
Replace yarn set version berry with corepack enable to match
packageManager and avoid lockfile v8→v9 migration blocked in PRs.
Upgrade actions/setup-node to v4 with yarn cache.
Comment thread .github/workflows/node.js.yml Outdated
Comment thread config/webpack.common.js Outdated
firestar300 and others added 2 commits April 24, 2026 16:19
…ate instance

Move ImageMinimizerPlugin to plugins (generator + optional prod minifier) so
?as=webp works when minimization is off. Remove it from optimization.minimizer
to keep a single instance and avoid asset name conflicts. Minor shorthand for mode in dev/prod config.
@cedric07
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cedric07 commented Apr 27, 2026

Vu avec @MarieComet

Ne fonctionne pas pour les appels en PHP. Cette solution native webpack ne semble pas être le bon compromis. Il faudrait voir pour une alternative différente.


TEST sur une autre branche pour pas poluer cette dernière :

PR : #491

  • Pour la partie PHP, un plugin JS pour convertir toutes les images jpg et png du dossier static en webp, et les mettre dans le dossier dist. Ce qui permet de pouvoir les appeler directement en PHP
  • Garder le fonctionnement actuel pour les CSS, car sinon la compilation casse (css-loader) si on appel l'image webp directement car elle n'existe pas encore

@firestar300 Bonne approche ou pas ? a dispo pour en discuter / tester

- Introduced WebpackStaticImagesPlugin to copy and convert static images to WebP format.
- Configured plugin in plugins.js with input and output directories, quality settings, and console output options.
firestar300 and others added 5 commits April 27, 2026 14:14
Improve build performance by skipping image processing when no files in the input directory have changed. The plugin now registers the input directory as a context dependency and checks modified files during subsequent builds to avoid redundant processing.
…lugin

Switch from Sharp to fs.copyFile for original assets to ensure they are preserved exactly as-is, maintaining source quality and metadata (EXIF/ICC). Sharp is now used exclusively for generating the WebP derivatives.
Add WebpackStaticImagesPlugin to handle static image processing
- Deleted unused JPEG images (default.jpg, logo.jpg) and replaced them with WebP versions (default.webp, logo.webp).
- Updated SCSS and Webpack configuration to reference the new WebP images.
- Removed imagemin-webp from package.json and yarn.lock as it is no longer needed.
- Generate default images in webp format by default
- Deleted WebpackStaticImagesPlugin to streamline image processing.
- Removed related configuration from plugins.js, eliminating the static image processing setup.
- This change simplifies the build process by relying on existing image handling methods.
@cedric07
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cedric07 commented Apr 28, 2026

Pour faire suite au point entre TD :

  • Suppression du generator webpack webp
  • Transformation manuelle des jpg/png en webp dans le dossier static
  • Mise à jour du script qui génère les images par défaut pour qu'elles soient générées en webp
  • Suppression du script qui va transformer toutes les images jpg/png du dossier static en webp

TODO : A tester dans le cadre d'un projet, si ARI va bien aller charger les images webp générées, normalement oui au vu du json généré :

"square": [
      {
        "srcsets": [
          {
            "srcset": "",
            "size": "img-100-100"
          },
          {
            "srcset": "2x",
            "size": "img-200-200"
          },
          {
            "srcset": "2x",
            "size": "img-400-400"
          }
        ],
        "default_img": "default-400-400.webp",
        "img_base": "img-400-400"
      }
    ]

Comment thread config/webpack.dev.js

module.exports = merge(common, {
mode: mode,
mode,
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@firestar300 toujours ok cette modif ? au vu des derniers ajustements

Comment thread config/webpack.prod.js

module.exports = merge(common, {
mode: mode,
mode,
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ici aussi

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

Fix All in Cursor

❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.

Reviewed by Cursor Bugbot for commit fc805ae. Configure here.

Comment thread config/plugins.js
['gifsicle', { interlaced: true }],
['jpegtran', { progressive: true }],
['optipng', { optimizationLevel: 5 }],
['svgo', { svgoconfig }],
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SVGO config wrapped in extra object layer

Medium Severity

The svgoconfig variable (which exports { plugins: [...] }) is passed as { svgoconfig }, creating the object { svgoconfig: { plugins: [...] } } due to ES6 shorthand property syntax. The imagemin-svgo plugin expects the config object directly (e.g. { plugins: [...] }), so the custom SVGO settings are silently ignored and defaults are used instead. The correct usage is ['svgo', svgoconfig] without the wrapping braces.

Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit fc805ae. Configure here.

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3 participants