rollup.config.js

import resolve from '@rollup/plugin-node-resolve'
import commonjs from '@rollup/plugin-commonjs'
import typescript from '@rollup/plugin-typescript'
import peerDepsExternal from 'rollup-plugin-peer-deps-external'
import postcss from 'rollup-plugin-postcss'
import json from '@rollup/plugin-json'
import dts from 'rollup-plugin-dts'

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

export default [
  {
    input: 'src/lib/index.tsx',
    output: [
      {
        file: packageJson.main,
        format: 'cjs',
        sourcemap: true
      },
      {
        file: packageJson.module,
        format: 'esm',
        sourcemap: true
      }
    ],
    plugins: [
      peerDepsExternal(),
      resolve(),
      commonjs(),
      json(),
      typescript({ tsconfig: './tsconfig.json' }),
      postcss({
        modules: false,
        use: ['sass']
      })
    ]
  },
  {
    input: 'dist/esm/types/index.d.ts',
    output: [{ file: 'dist/index.d.ts', format: 'esm' }],
    external: [/\.(sass|scss|css)$/],
    plugins: [dts.default()]
  }
]