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Vite integration for WordPress plugins and themes development.

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Vite for WordPress

Vite integration for WordPress plugins and themes development.

Usage

Let's assume we have this plugin files structure:

my-plugin/
├ js/
| └ src/
|   └ main.ts
├ package.json
├ plugin.php
└ vite.config.js

JavaScript

Add JS dependencies:

npm add -D vite @kucrut/vite-for-wp

Create vite.config.js:

import { v4wp } from '@kucrut/vite-for-wp';

export default {
	plugins: [
		v4wp( {
			input: 'js/src/main.ts', // Optional, defaults to 'src/main.js'.
			outDir: 'js/dist', // Optional, defaults to 'dist'.
		} ),
	],
};

For multiple entrypoints, pass an object as the first parameter:

// vite.config.js
import { v4wp } from '@kucrut/vite-for-wp';

export default {
	plugins: [
		v4wp( {
			input: {
				main: 'js/src/main.ts',
				extra: 'js/src/extra.ts',
			},
			outDir: 'js/dist',
		} ),
	],
};

Refer to Rollup documentation on how to set entrypoints: https://rollupjs.org/configuration-options/#input

Feel free to customise the configuration to add plugins, use https, etc:

// vite.config.js
import { readFileSync } from 'node:fs';
import { v4wp } from '@kucrut/vite-for-wp';
import react from '@vitejs/plugin-react';

export default {
	plugins: [ v4wp( { input: 'js/src/main.ts', outDir: 'js/dist' } ), react() ],
	server: {
		host: 'mydomain.com',
		https: {
			cert: readFileSync( 'path/to/cert.pem' ),
			key: readFileSync( 'path/to/key.pem' ),
		},
	},
};

Lastly, add dev and build scripts to your package.json:

{
	"scripts": {
		"build": "vite build",
		"dev": "vite"
	}
}

PHP

Add the composer dependency:

composer require kucrut/vite-for-wp

If your plugin/theme doesn't use composer, feel free to copy the main file and require it.

Enqueue the script:

<?php

use Kucrut\Vite;

add_action( 'wp_enqueue_scripts', function (): void {
	Vite\enqueue_asset(
		__DIR__ . '/js/dist',
		'js/src/main.ts',
		[
			'handle' => 'my-script-handle',
			'dependencies' => [ 'wp-components', 'some-registered-script-handle' ], // Optional script dependencies. Defaults to empty array.
			'css-dependencies' => [ 'wp-components', 'some-registered-style-handle' ], // Optional style dependencies. Defaults to empty array.
			'css-media' => 'all', // Optional.
			'css-only' => false, // Optional. Set to true to only load style assets in production mode.
			'in-footer' => true, // Optional. Defaults to false.
		]
	);
} );

Note that each entrypoint needs to be enqueued separately, ie. if you have multiple entrypoints, you'll need to call Vite\enqueue_asset() for each and every one of them.

To only register the asset, use Vite\register_asset(). It accepts same parameters as Vite\enqueue_asset() and returns an array of scripts and styles handles that you can enqueue later using wp_enqueue_script() and wp_enqueue_style(). Please note that style assets are only registered in production mode because in development mode, they will be automatically loaded by Vite.

You can now run npm run dev when developing your plugin/theme and run npm run build to build the production assets.

Notes

External Dependencies

If your package depends on one or more scripts registered by WordPress (eg. jquery, react, @wordpress/i18n, etc.) and you want to exclude them from the final build, add wp_scripts() to the list of Vite's plugins. But first, install the required dependencies:

npm add -D rollup-plugin-external-globals vite-plugin-external

For example, to externalise react and react-dom packages:

// vite.config.js
import { v4wp } from '@kucrut/vite-for-wp';
import { wp_scripts } from '@kucrut/vite-for-wp/plugins';
import react from '@vitejs/plugin-react';

export default {
	plugins: [
		v4wp( {
			input: 'js/src/main.jsx',
			outDir: 'js/dist',
		} ),
		wp_scripts(),
		react( {
			jsxRuntime: 'classic',
		} ),
	],
};

Special Notes for React

  • react and react-dom packages still need to be installed as your package's dev dependencies as they're used by @vitejs/plugin-react.
  • react and react-dom should be added to the dependencies array when enqueueing the script (see example above).

Example plugins

Limitations

Currently, this package doesn't provide HMR support for building editor blocks yet.

License

GPL v2