rollup.config.ts

import resolve from 'rollup-plugin-node-resolve';
import commonjs from 'rollup-plugin-commonjs';
import sourceMaps from 'rollup-plugin-sourcemaps';
import typescript from 'rollup-plugin-typescript2';
import json from 'rollup-plugin-json';

const pkg = require('./package.json');

export default {
  input: 'src/muxy.ts',
  output: [
    { file: pkg.main, name: 'Muxy', format: 'umd', exports: 'named' },
    { file: pkg.module, format: 'es' }
  ],

  watch: {
    include: 'src/**'
  },

  plugins: [
    // Allow json resolution
    json(),
    // Compile TypeScript files
    typescript({ useTsconfigDeclarationDir: true }),
    // Allow bundling cjs modules (unlike webpack, rollup doesn't understand cjs)
    commonjs(),
    // Allow node_modules resolution, so you can use 'external' to control
    // which external modules to include in the bundle
    // https://github.com/rollup/rollup-plugin-node-resolve#usage
    resolve({
      browser: true
    }),
    // Resolve source maps to the original source
    sourceMaps()
  ]
};