rollup-plugin-asset-url

fork from rollup-plugin-url . Similar to rollup-plugin-url and add reserveImportInJs option .

Why ?

when i use rollup-plugin-url build my component that with image then used in webpack, it has some problem .

• rollup-plugin-url

webpack can not resolve such a url

var loadingIcon = './static/images/loading-24b7d7fd646f1365.gif';
React.createElement('img', { className: 'loading-img', src: loadingIcon, alt: '' })

• rollup-plugin-asset-url

webpack work well

var loadingIcon = require('./static/images/loading-24b7d7fd646f1365.gif');
React.createElement('img', { className: 'loading-img', src: loadingIcon, alt: '' })

Install

npm install rollup-plugin-asset-url -D
// or
yarn add rollup-plugin-asset-url -D

Usage

// rollup.config.js
import url from "rollup-plugin-asset-url"

export default {
  // ...
  plugins: [
    url({
      fileName: '[name]-[hash][extname]',
      output: './static/',
      limit: 8 * 1024,
      reserveImportInJs: true // default to true . if true, it will reserve require code
    }),
  ]
}

Options

limit

Optional. Type: number.

This is the file size limit to inline files. If files exceed this limit, they will be copied instead to the destination folder and the hashed filename will be given instead. If value set to 0 all files will be copied.

Defaults to 8kb.

include / exclude

Optional. Type: a minimatch pattern, or array of minimatch patterns

These patterns determine which files are inlined. Defaults to .svg, .png, .jpg and .gif files.

fileName

Optional. Type: string

It accepts the following string replacements:

[hash] - The hash value of the file's contents [name] - The name of the imported file, without it's file extension [extname] - The extension of the imported file, including the leading .

Defaults to: "[hash][extname]"

output

Optional. Type: string

It is a relative path and what relate with rollup.output.file

// src/index.js
import image from '../../assets/images/demo.png'

const Demo = () => <img src={image} alt="" />

export default Demo

// rollup.config.js
export default {
  input: './src/index.js',
  output: {
    file: './dist/index.js',
    format: 'cjs'
  },
  plugins: [
    url({
      fileName: '[name]-[hash][extname]',
      output: './static/',
      limit: 8 * 1024,
      reserveImportInJs: true // default to true . if true, it will reserve require code
    }),
  ]
}

// output dir
│  index.js
│
└─static
    demo-8b7028a9ad9ac27a.png

// output index.js
var image = require('./static/demo-8b7028a9ad9ac27a.png')