rollup.config.js

import terser from '@rollup/plugin-terser';
import typescript from '@rollup/plugin-typescript';
import dts from 'rollup-plugin-dts';

const createPlugins = (compact) => (compact ? [terser()] : []);

const iife = (compact) => ({
  file: `dist/iife/passwordless.iife${compact ? '.min' : ''}.js`,
  format: 'iife',
  name: 'Passwordless',
  sourcemap: true,
  exports: 'named',
  plugins: createPlugins(compact)
});

const es6 = (compact) => ({
  file: `dist/esm/passwordless${compact ? '.min' : ''}.mjs`,
  format: 'esm',
  sourcemap: true,
  exports: 'named',
  plugins: createPlugins(compact)
});

const umd = (compact) => ({
  file: `dist/umd/passwordless.umd${compact ? '.min' : ''}.js`,
  format: 'umd',
  name: 'Passwordless',
  esModule: false,
  exports: 'named',
  plugins: createPlugins(compact)
});

const cjs = (compact) => ({
  file: `dist/cjs/passwordless${compact ? '.min' : ''}.js`,
  format: 'cjs',
  name: 'Passwordless',
  exports: 'named',
  plugins: createPlugins(compact)
});

export default [
  {
    input: 'src/passwordless.ts',
    plugins: [typescript()],
    output: [
      iife(false),
      iife(true),
      es6(false),
      es6(true),
      umd(false),
      umd(true),
      cjs(false),
      cjs(true)
    ]
  },
  {
    input: 'src/passwordless.ts',
    plugins: [dts()],
    output: {
      file: 'dist/passwordless.d.ts'
    }
  }
];