rollup-plugin-insert

string mutation plugin for rollup

Usage

# npm
npm install -D rollup-plugin-insert

# yarn
yarn add -D rollup-plugin-insert

import * as insert from 'rollup-plugin-insert'

All following methods has an optional last argument options which is an object and contains key include and exclude.

It can be used to filter files as you like. For example you can wrapper your html template as following:

insert.transform(
  (code, id) =>
    `export default ${JSON.stringify(`<!--add some comments-->${code}`)}`,
  {
    include: '**/*.html',
  },
)

Appends a string onto the contents.

insert.append('world') // Appends 'world' to the contents of every file

Prepends a string onto the contents.

insert.prepend('Hello') // Prepends 'Hello' to the contents of every file

Wraps the contents with two strings.

insert.wrap('Hello', 'World') // prepends 'hello' and appends 'world' to the contents

Calls a function with the contents of the file.

insert.transform((code, id) => code.toUpperCase())