@rollup/plugin-image

@rollup/plugin-image

🍣 A Rollup plugin which imports JPG, PNG, GIF, SVG, and WebP files.

Images are encoded using base64, which means they will be 33% larger than the size on disk. You should therefore only use this for small images where the convenience of having them available on startup (e.g. rendering immediately to a canvas without co-ordinating asynchronous loading of several images) outweighs the cost.

Requirements

This plugin requires an LTS Node version (v14.0.0+) and Rollup v1.20.0+.

Install

Using npm:

npm install @rollup/plugin-image --save-dev

Usage

Assuming a src/index.js exists and contains code like the following:

import logo from './rollup.png';

console.log(logo);

Create a rollup.config.js configuration file and import the plugin:

import image from '@rollup/plugin-image';

export default {
  input: 'src/index.js',
  output: {
    dir: 'output',
    format: 'cjs'
  },
  plugins: [image()]
};

Then call rollup either via the CLI or the API.

Once the bundle is executed, the console.log will display the Base64 encoded representation of the image.

Options

dom

Type: Boolean
Default: false

If true, instructs the plugin to generate an ES Module which exports a DOM Image which can be used with a browser's DOM. Otherwise, the plugin generates an ES Module which exports a default const containing the Base64 representation of the image.

Using this option set to true, the export can be used as such:

import logo from './rollup.png';
document.body.appendChild(logo);

exclude

Type: String | Array[...String]
Default: null

A picomatch pattern, or array of patterns, which specifies the files in the build the plugin should ignore. By default no files are ignored.

include

Type: String | Array[...String]
Default: null

A picomatch pattern, or array of patterns, which specifies the files in the build the plugin should operate on. By default all files are targeted.

Meta

CONTRIBUTING

LICENSE (MIT)