rollup.config.js

import resolve from '@rollup/plugin-node-resolve';
import babel from '@rollup/plugin-babel';
import terser from '@rollup/plugin-terser';
import serve from 'rollup-plugin-serve';

const dev = process.env.ROLLUP_WATCH;

export default {
  input: 'src/index.js',
  output: {
    file: 'dist/ember-mug-card.js',
    format: 'es',
    sourcemap: dev ? true : false
  },
  plugins: [
    resolve(),
    babel({
      babelHelpers: 'bundled',
      exclude: 'node_modules/**'
    }),
    !dev && terser({
      format: {
        comments: false
      }
    }),
    dev && serve({
      contentBase: ['dist'],
      host: '0.0.0.0',
      port: 5000,
      allowCrossOrigin: true,
      headers: {
        'Access-Control-Allow-Origin': '*',
      },
    }),
  ].filter(Boolean),
};