rollup.config.mjs

import typescript from '@rollup/plugin-typescript';
import json from '@rollup/plugin-json';
import { nodeResolve } from '@rollup/plugin-node-resolve';
import { dts } from 'rollup-plugin-dts';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);
const pkg = require('./package.json');

export default [
  {
    input: 'src/index.ts',
    external: [
      ...Object.keys(pkg.dependencies ?? {}),
      ...Object.keys(pkg.peerDependencies ?? {})
    ],
    output: [
      {
        file: pkg.main,
        format: 'cjs',
        exports: 'named'
      },
      {
        file: pkg.module,
        format: 'es',
        exports: 'named'
      }
    ],
    plugins: [
      json(),
      nodeResolve({
        preferBuiltins: true
      }),
      typescript({
        tsconfig: './tsconfig.rollup.json'
      })
    ]
  },
  {
    input: 'src/index.ts',
    external: [
      ...Object.keys(pkg.dependencies ?? {}),
      ...Object.keys(pkg.peerDependencies ?? {})
    ],
    output: [
      {
        file: './dist/index.d.ts',
        format: 'es'
      }
    ],
    plugins: [
      dts({
        respectExternal: true,
        tsconfig: './tsconfig.rollup.json'
      })
    ]
  }
];