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wp-webpack-script

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💥🔥📦👩‍💻 An easy to use, pre configured, hackable webpack setup & development server for WordPress themes and plugins.

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<a href="https://wpack.io"><img width="600" src="https://raw.githubusercontent.com/swashata/wp-webpack-script/master/assets/wpackio-logo.png"></a> 
 visit our website <a href="https://wpack.io">wpack.io</a> for documentation and usage

# wpack.io - Modern JavaScript tooling for WordPress

[![Backers on Open Collective](https://opencollective.com/wpackio/backers/badge.svg)](https://raw.githubusercontent.com/swashata/wp-webpack-script/master/) [![Sponsors on Open Collective](https://opencollective.com/wpackio/sponsors/badge.svg)](https://raw.githubusercontent.com/swashata/wp-webpack-script/master/) [![Build Status](https://travis-ci.com/swashata/wp-webpack-script.svg?branch=master)](https://travis-ci.com/swashata/wp-webpack-script) [![codecov](https://codecov.io/gh/swashata/wp-webpack-script/branch/master/graph/badge.svg)](https://codecov.io/gh/swashata/wp-webpack-script) [![npm version](https://badge.fury.io/js/%40wpackio%2Fscripts.svg)](https://badge.fury.io/js/%40wpackio%2Fscripts) [![npm download](https://img.shields.io/npm/dt/@wpackio/scripts.svg?label=downloads)](https://www.npmjs.com/package/@wpackio/scripts) [![cypress dashboard](https://img.shields.io/badge/cypress-dashboard-brightgreen.svg)](https://dashboard.cypress.io/#/projects/r3p1vm/runs)

## What is wpack.io?

Put simply, wpack.io is a nodejs based build tool to ease up using modern javascript
in WordPress Themes and Plugins. It gives a fine _Developer Experience_ (DX) and
a single dependency for all your bundling requirement.

> It is a fine-tuned webpack/browser-sync configuration made specifically for
> WordPress Theme and Plugin Development.

With the rise of Gutenberg editor, the usage of modern JavaScript and libraries
like react is imminent. The goal of this tooling is to:

-   ✅ Provide out of the box compiling and bundling of all front-end assets.
-   ✅ Give best in class Developer Experience (DX).
    -   Hot Module Replacement and Live Reload.
    -   Compile files on save.
    -   Work on any local development server.
-   ✅ Support modern and useful concepts like modules, tree-shaking, dynamic import etc.

and eliminate the pain points such as:

-   ❌ Boilerplate for setting up your project.
-   ❌ Doing a lot of configuration to setup webpack.
-   ❌ A lot of things to hook webpack with browsersync. We can not safely have webpack dev server because it doesn't reload for PHP files.
-   ❌ A lot of dependencies like babel, webpack loaders and what not.

## What is supported out of the box

-   👉 Have Create React App like developer experience for WordPress Plugin/Theme development.
-   👉 Consume all the modern packages from [npm registry](https://npmjs.com).
-   👉 Write javascript with modern ES2018 (ES6+) syntax and compile it down to ES5 (or in accordance to your `.browserslistrc`).
-   👉 Automatically minify and bundle code with [webpack](https://webpack.js.org).
-   👉 Split large files automatically and have PHP library to `wp_enqueue_script` all generated parts.
-   👉 Use SASS/SCSS language to create stylesheets.
-   👉 Use postcss autoprefixer to automatically make your CSS work with needed vendor prefixes.
-   👉 Implement all the above to your existing wamp, mamp, vvv (basically any) dev server.
-   👉 Create production grade, super optimized and minified files with one command (hello CI).

Here are a few more bonus you get for using wpackio.

-   😎 Using [ES6 Modules](https://scrimba.com/p/p4Mrt9/c9kMkhM) you will never run into namespace collision.
    > Remember when that third-party plugin was using that old version of `foo` library which caused
    > your system to completely fail? No more!.
-   😎 Zero configuration for a sane default of all the tooling involved (babel, sass, webpack).
-   😎 Your CSS/SCSS changes will reflect instantly.
-   😎 [Typescript](https://www.typescriptlang.org/) and [Flowtype](https://flow.org/) to take your js carrier to the next level. This tooling itself is written in typescript 😉.
-   😎 All the stuff you need to start developing using [react](https://reactjs.org/). Hello Gutenberg!

## Getting Started

Everything is documented in our [website](https://wpack.io).

#### TL;DR

-   Add `@wpackio/scripts` to a project by running this.
    ```bash
    npx @wpackio/cli
    ```
    and after that
    ```bash
    npm run bootstrap
    ```
-   Edit the `wpackio.project.js` file to write your javascript entry-points.
-   Use `wpackio/enqueue` from [composer](https://packagist.org/packages/wpackio/enqueue) to consume the assets.
-   Start the server using `npm start`.
-   Create production file using `npm run build`.

## How wpack.io solves the problems?

Behind the scene wpack.io uses [webpack](https://webpack.js.org/) along with
[browsersync](https://browsersync.io/).

It doesn't concern itself with providing boilerplate or starter templates. It
assumes that **you** (the awesome developer `👨‍💻 || 👩‍💻`) is already doing that and what you
want is a simple to configure, yet hackable to the core tooling for bundling
all your frontend assets (js, css, images, svgs) in the most optimized way and
make it work within your WordPress theme or plugin.

Keeping that in mind, wpack.io provides three dependencies for your projects:

1. `@wpackio/entrypoint` - As main dependency of your `package.json`.
1. `@wpackio/scripts` - As main dev dependency of your `package.json`.
1. `wpackio/enqueue` - As main dependency of your `composer.json`.

The first handles all the tasks for building the assets and providing a damn
good DX.

The second handles enqueuing the assets using WordPress' API (`wp_enqueue_script`
and `wp_enqueue_style`).

Both the tools communicate with each other through the means of `manifest.json`
file. The first tell the later which files to consume and the later `publicPath`
to the first.

## See it in action

We have examples inside [examples](./examples) directory of this repo. Each of
them has instructions in the readme file, so be sure to check out.

### `npx @wpackio/cli`

Add wpack.io into any existing or new project. This command has to be run
from within the project.

### `npm run bootstrap` / `yarn bootstrap`

Bootstrap needed dependencies, dev dependencies according to the type of your
project. This command is enabled by `npx @wpackio/cli`.

### Setup JS entry-points

Talking about example in [plugins](./examples/plugin), we setup the entry-points
in **`wpackio.project.js`** file.

```js
module.exports = {
	// Project Identity
	appName: 'wpackplugin', // Unique name of your project
	type: 'plugin', // Plugin or theme
	slug: 'wpackio-plugin', // Plugin or Theme slug, basically the directory name under `wp-content/<themes|plugins>`
	// Used to generate banners on top of compiled stuff
	bannerConfig: {
		name: 'WordPress WebPack Bundler',
		author: 'Swashata Ghosh',
		license: 'GPL-3.0',
		link: 'https://wpack.io',
		version: '1.0.0',
		copyrightText:
			'This software is released under the GPL-3.0 License\nhttps://opensource.org/licenses/GPL-3.0',
		credit: true,
	},
	// Files we need to compile, and where to put
	files: [
		// App just for showing react
		{
			name: 'reactapp',
			entry: {
				main: ['./src/reactapp/index.jsx'],
			},
		},
	],
	// Output path relative to the context directory
	// We need relative path here, else, we can not map to publicPath
	outputPath: 'dist',
	// Project specific config
	// Needs react?
	hasReact: true,
	// Needs sass?
	hasSass: true,
	// Externals
	externals: {
		jquery: 'jQuery',
	},
	// Webpack Aliases
	alias: undefined,
	// Show overlay on development
	errorOverlay: true,
	// Auto optimization by webpack
	// Split all common chunks with default config
	// <https://webpack.js.org/plugins/split-chunks-plugin/#optimization-splitchunks>
	// Won't hurt because we use PHP to automate loading
	optimizeSplitChunks: true,
	// Usually PHP and other files to watch and reload when changed
	watch: 'inc/**/*.php',
	// Hook into babeloverride so that we can add react-hot-loader plugin
	jsBabelOverride: defaults => ({
		...defaults,
		plugins: ['react-hot-loader/babel'],
	}),
};
```

### Setup PHP Library to consume build files

Now we do

```bash
composer require wpackio/enqueue
```

to install [PHP Consumer Library](https://github.com/swashata/wpackio-enqueue).
We instruct it to load files the right way (using WordPress APIs like
`wp_enqueue_script` and `wp_enqueue_style`).

```php
<?php
/*
Plugin Name: WPackIo Sample
Plugin URI: https://wpack.io
Description: A sample to demonstrate wpackio
Version: 0.1.0
Author: Swashata Ghosh
Author URI: https://swas.io
Text Domain: wpack-io
Domain Path: /languages
*/
// Assuming this is the main plugin file.

// Require the composer autoload for getting conflict-free access to enqueue
require_once __DIR__ . '/vendor/autoload.php';

// Do stuff through this plugin
class MyPluginInit {
	/**
	 * @var \WPackio\Enqueue
	 */
	public $enqueue;

public function __construct() {
		// It is important that we init the Enqueue class right at the plugin/theme load time
		$this->enqueue = new \WPackio\Enqueue( 'wpackplugin', 'dist', '1.0.0', 'plugin', __FILE__ );
		// Enqueue a few of our entry points
		add_action( 'wp_enqueue_scripts', [ $this, 'plugin_enqueue' ] );
	}

public function plugin_enqueue() {
		// Enqueue the `main` entry from `reactapp` file entry.
		$this->enqueue->enqueue( 'reactapp', 'main', [] );
	}
}

// Init
new MyPluginInit();
```

### `npm start` / `yarn start`

After configuring all entry-points and using the PHP library for consuming, we
start the development server.

##### HMR

We edit the files and with proper setup, we can see things load live, without
page refresh. It is called, **Hot Module Replacement (_HMR_)**.

In the above image we see, we are changing the label of from `Todo App` to
`Awesome todo`. The changes are reflected live on the page, without any page-reload.

##### Stop Dev Server

Once done, we press <kbd>Ctrl</kbd> + <kbd>c</kbd> to stop it.

### `npm run build` / `yarn build`

Now we create production build.

Our plugin/theme is now ready to go live.

## Learn more

This Readme is not an extensive source of documentation. Please visit our website
[wpack.io](https://wpack.io) to learn more.

## Contributors

This project exists thanks to all the people who contribute. [[Contribute]](CONTRIBUTING.md).

## Backers

Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/wpackio#backer)].

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## Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/wpackio#sponsor)]. (please ask your company to also support this open source project by [becoming a sponsor](https://opencollective.com/wpackio#sponsor)).

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