rollup.config.js

import babel from "rollup-plugin-babel";
import commonjs from "rollup-plugin-commonjs";
import resolve from "rollup-plugin-node-resolve";
import external from "rollup-plugin-peer-deps-external";
import { terser } from "rollup-plugin-terser";
import typescript from "rollup-plugin-typescript2";
import url from "rollup-plugin-url";

import pkg from "./package.json";

export default {
  input: "lib/index.ts",
  external: ["react", "react-dom", "yup"],
  output: [
    {
      file: pkg.main,
      format: "cjs",
      sourcemap: true
    },
    {
      file: pkg.module,
      format: "es",
      sourcemap: true
    }
  ],
  plugins: [
    external({
      includeDependencies: false
    }),
    url(),
    resolve(),
    babel({
      exclude: "node_modules/**"
    }),
    typescript({
      rollupCommonJSResolveHack: true,
      clean: true
    }),
    commonjs(),
    terser()
  ]
};