rollup-plugin-blacklist

rollup-plugin-blacklist is a rollup plugin that will prevent files matching a given pattern from being accidentally included in a bundle.

This module is inspired by blacklistify which does basically the same thing for browserify.

Install

yarn add --dev rollup-plugin-blacklist

or

npm install --save-dev rollup-plugin-blacklist

Use

// rollup.config.js
import blacklist from "rollup-plugin-blacklist";

export default {
  input: "./src/index.js",
  plugins: [
    blacklist([/banned-module-name/, /other-banned-module-name/])
  ]
};

If you are using multiple plugins, make sure you put rollup-plugin-blacklist before other ones that handle module resolution like rollup-plugin-node-resolve, otherwise it won't be able to see the names of the imported files.

But why?

Say you're making two bundles - worker.js for your Web Worker and main.js for the rest of your code. If you keep all of the Web Worker code in a folder called worker, you can use rollup-plugin-blacklist to ensure that you don't accidentally include some of your Web Worker code in main.js.

You could use this to ensure your Web Worker code is not included in main.js:

blacklist([/worker/])

And if you build your UI with React.js, you could use this to ensure that React.js is not included in your Web Worker:

blacklist([/react/])