rollup.config.ts

import resolve from 'rollup-plugin-node-resolve'
import commonjs from 'rollup-plugin-commonjs'
import sourceMaps from 'rollup-plugin-sourcemaps'
import camelCase from 'lodash.camelcase'
import typescript from 'rollup-plugin-typescript2'
import postcss from 'rollup-plugin-postcss'
import cssnano from 'cssnano'
import uglify from 'rollup-plugin-uglify';

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

const libraryName = 'location-picker'

export default [{
  input: `src/${libraryName}.ts`,
  output: [
    {file: pkg.main, name: camelCase(libraryName), format: 'umd'},
    {file: pkg.module, format: 'es'},
  ],
  sourcemap: true,
  // Indicate here external modules you don't wanna include in your bundle (i.e.: 'lodash')
  external: [],
  watch: {
    include: 'src/**',
  },
  plugins: [
    postcss({
      plugins: [
        cssnano(),
      ],
    }),
    // 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(),

    // Resolve source maps to the original source
    sourceMaps(),
  ],
}, {
  input: `src/${libraryName}.ts`,
  output: [
    {file: pkg.min, name: camelCase(libraryName), format: 'umd'},
  ],
  sourcemap: false,
  // Indicate here external modules you don't wanna include in your bundle (i.e.: 'lodash')
  external: [],
  watch: {
    include: 'src/**',
  },
  plugins: [
    postcss({
      plugins: [
        cssnano(),
      ],
    }),
    // 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(),

    // Resolve source maps to the original source
    sourceMaps(),
    uglify()
  ],
}]