rollup.config.js

import resolve from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import typescript from '@rollup/plugin-typescript'
import dts from 'rollup-plugin-dts'
import scss from 'rollup-plugin-scss'

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

export default [
  {
    input: 'src/index.ts',
    output: [
      {
        file: packageJson.main,
        format: 'cjs',
        sourcemap: true
      },
      {
        file: packageJson.module,
        format: 'esm',
        sourcemap: true
      }
    ],
    plugins: [
      resolve(),
      commonjs(),
      typescript({ tsconfig: './tsconfig.json' }),
      scss({
        output: 'dist/styles.min.css',
        outputStyle: 'compressed'
      })
    ]
  },
  {
    input: 'dist/esm/types/index.d.ts',
    output: [{ file: 'dist/index.d.ts', format: 'esm' }],
    external: [/\.s?css$/],
    plugins: [dts()]
  }
]