rollup.config.js

import fs from "fs";
import babel from "rollup-plugin-babel";
import { uglify } from "rollup-plugin-uglify";
import fileSize from "rollup-plugin-filesize";
import license from "rollup-plugin-license";
import replace from "rollup-plugin-replace";
import commonjs from "rollup-plugin-commonjs";
import resolve from "rollup-plugin-node-resolve";

import PACKAGE from "./package.json";
const fullYear = new Date().getFullYear();

const banner = `${PACKAGE.name} - ${PACKAGE.version}
  Author : ${PACKAGE.author}
  Copyright (c) ${fullYear !== 2016 ? "2016," : ""} ${fullYear} to ${
  PACKAGE.author
}, released under the ${PACKAGE.license} license.
  ${PACKAGE.repository.url}`;

const babelConfig = JSON.parse(fs.readFileSync(".babelrc"));

const globals = {
  react: "React",
};

const defaultConfig = {
  input: "src/number_format.js",
  output: [
    {
      file: "dist/react-number-format.es.js",
      format: "esm",
      globals,
      exports: "default",
    },
    {
      file: "dist/react-number-format.js",
      format: "umd",
      name: "NumberFormat",
      globals,
      exports: "default",
    },
  ],
  external: ["react"],
  plugins: [
    babel({
      babelrc: false,
      ...babelConfig,
      exclude: "node_modules/**",
      presets: ["@babel/preset-react", ["@babel/env", { modules: false }]],
    }),
    replace({
      "process.env.NODE_ENV": JSON.stringify(process.env.NODE_ENV),
    }),
    resolve(),
    commonjs({
      include: /node_modules/,
    }),
    fileSize(),
    license({
      banner,
    }),
  ],
};

const minConfig = {
  ...defaultConfig,
  output: {
    file: "dist/react-number-format.min.js",
    format: "umd",
    name: "NumberFormat",
    globals,
    exports: "default",
  },
  plugins: [...defaultConfig.plugins, uglify()],
};

export default [defaultConfig, minConfig];