rollup.config.js

import { version as browserslistVersion } from 'browserslist/package.json';
import license from 'rollup-plugin-license';
import typescript from '@wessberg/rollup-plugin-ts';
import { author, browserslist, main, module, name, repository, version } from './package.json';


const input = './typescript.ts';

const commonPlugins = [
	license({
		banner: {
			commentStyle: 'none',
			content: `/*! ${
				[
					`${name} v${version}`,
					`(c) ${author.name}`,
					repository.url.replace('.git', `/blob/v${version}/LICENSE`),
					`@browserslist v${browserslistVersion}: ${browserslist.join(', ')}`
				].join(' | ')
			} */`
		}
	})
];


export default [
	{
		input,
		output: {
			file: module,
			format: 'es'
		},
		plugins: [
			typescript({
				transpiler: 'babel',
				tsconfig: (config) => ({
					...config,
					target: undefined // Remove target in favor of browserslist
				})
			}),
			...commonPlugins
		]
	},
	{
		input,
		output: {
			name,
			file: main,
			format: 'umd'
		},
		plugins: [
			typescript({
				transpiler: 'babel',
				tsconfig: (config) => ({
					...config,
					target: undefined, // Remove target in favor of browserslist
					declaration: false
				})
			}),
			...commonPlugins
		]
	}
];