rollup.config.js

const resolve = require('@rollup/plugin-node-resolve').default
const commonjs = require('@rollup/plugin-commonjs').default
const typescript = require('rollup-plugin-typescript2')
const postcss = require('rollup-plugin-postcss')
const analyze = require('rollup-plugin-analyzer').default
const dts = require('rollup-plugin-dts').default
const pkg = require('./package.json')

module.exports = [
  {
    input: {
      index: 'src/index.ts'
    },
    output: [
      {
        dir: 'dist/cjs',
        format: 'cjs',
        sourcemap: true
      },
      {
        format: 'esm',
        exports: 'named',
        dir: 'dist/esm'
      }
    ],
    external: [...Object.keys(pkg.peerDependencies), ...Object.keys(pkg.devDependencies)],
    plugins: [
      resolve(),
      commonjs(),
      typescript({
        tsconfig: './tsconfig.json',
        tsconfigOverride: {
          exclude: ['./src/components/*']
        }
      }),
      postcss(),
      analyze()
    ]
  },
  {
    input: 'src/index.ts',
    output: [{ file: 'dist/index.d.ts', format: 'es' }],
    plugins: [dts()]
  }
]