Convert CommonJS modules to ES6 so they can be included in a Rollup bundle. Uses the excellent esnext module to perform conversions.
$ npm install --save-dev rollup-plugin-esnext
import { rollup } from 'rollup';
import esnext from 'rollup-plugin-esnext';
rollup({
entry: 'main.js',
plugins: [
esnext({
// We attempt to ignore non-CommonJS modules, but might be wrong!
// Use this to specifically include/exclude particular files.
include: 'node_modules/**', // Default: undefined
exclude: [ 'node_modules/foo/**', 'node_modules/bar/**' ], // Default: undefined
// search for files other than .js files (must already
// be transpiled by a previous plugin!)
extensions: [ '.js', '.coffee' ] // Default: [ '.js' ]
})
]
}).then(...)MIT