cewb

Build Chrome Extensions with Webpack + Babel

Features

• 🏗 Next generation ES features with babel
• ⛓ Code bundling with webpack
• 🔁 Live reload on source change
• 📦 Packs your extension into a zip

Installation

npm install --dev cewb
# or 
yarn add --dev cewb

Usage

Example directory structure:

  + /project-directory
  |-+ /assets
  | '-- /icon.png
  |-- /manifest.json
  |-- /package.json
  |-+ /src
  | |-- /background.ext.js
  | |-- /utils.js
  | '-- /injectedScript.ext.js
  '-- /webpack.js

Example package.json:

{
  "name": "my-extension",
  "scripts": {
    "dev": "cewb",
    "prod": "cewb -p"
  }
}

File naming

Any file that ends with .ext.js will be added to webpack's entries object and therefore will be accessible by manifest.json.

Customize webpack configuration

Example webpack.js:

module.exports = (config, env) => {
  if (env === 'development') {
    config.plugins.push(new WebpackPlugin())
  }
 
  return config
}

Development

Running npm run dev will take all the static assets, transpile all source files, output these files to a directory named unpacked and then watch all files under src for live reloading.

After you've run npm run dev for the first time, goto chrome://extensions in Chrome, ensure "Developer mode" is checked, click "Load unpacked extension...", locate and select your extensions unpacked folder and you're ready to go!

Production

Running npm run prod will do everything npm run dev does but instead of outputting files to unpacked, it packages the extension into <package-name>.zip file.