Package Exports

rollup-plugin-shim

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (rollup-plugin-shim) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

rollup-plugin-shim

Plugin for rollup to provide a shim implementation for a module. Replaces required dependencies with the specified string instead, especially useful for shimming small dev-time APIs with a big footprint you don't want in production (like debug). For larger fully functional implementations that you want to use a file for you might want to consider the rollup-plugin-alias package instead.

Usage

Install

yarn add -D rollup-plugin-shim

Shim

src/main.js

import {writeFileSync} from 'fs'
import debug from 'debug'
import {bigFunction} from './local-dep'

const log = debug('mypackage:main')
// ...

rollup.config.js

import {join} from 'path'
import shim from 'rollup-plugin-shim'

export default {
  entry: 'src/main.js',
  plugins: [
    shim({
      // replace fs with a noop shim
      fs: `export function writeFileSync() { }`,
      // replace debug to return a noop function
      debug: `export default () => () => undefined`,
      // replace a local dependency with a noop
      // can also use './local-dep' as the key if that's the only way it's required
      [join(__dirname, 'src/local-dep')]: `export function bigFunction() { }`,
    }),
  ],
}