rollup.config.js

import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import typescript from '@rollup/plugin-typescript';
import { terser } from 'rollup-plugin-terser';

const configs = [
  ['core', 'index.ts'],
  ['react', 'index.tsx'],
  ['preact', 'index.tsx'],
].flatMap(([module, entry]) => [
  {
    input: `src/${module}/${entry}`,
    output: [
      {
        file: `dist/${module}/index.esm.js`,
        format: 'es',
        sourcemap: true,
      },
      {
        file: `dist/${module}/index.js`,
        format: 'cjs',
        sourcemap: true,
      },
    ],
    external:
      module != 'core' ? [/^@reduxless\/core/, /^preact/, /^react/] : [],
    plugins: [commonjs(), resolve(), typescript()],
  },
  {
    input: `src/${module}/${entry}`,
    output: {
      file: `dist/${module}/index.min.js`,
      format: 'cjs',
      sourcemap: true,
    },
    external:
      module != 'core' ? [/^@reduxless\/core/, /^preact/, /^react/] : [],
    plugins: [commonjs(), resolve(), typescript({ sourceMap: true }), terser()],
  },
]);

export default configs;