rollup.config.mjs

import babelConfig from "./babel.config.mjs";
import { nodeResolve } from "@rollup/plugin-node-resolve";
import { babel } from "@rollup/plugin-babel";
import terser from "@rollup/plugin-terser";

export const extensions = [".ts", ".js"];

const commonConfig = {
  plugins: [
    nodeResolve({ extensions }),
    babel({
      extensions,
      ...babelConfig,
      babelHelpers: "bundled",
      exclude: "node_modules/**",
    }),
  ],
};

const plugins = [
  terser({
    compress: {
      passes: 3,
      unsafe_arrows: true,
      booleans_as_integers: true,
    },
  }),
];

export default [
  {
    input: "src/index.ts",
    output: {
      file: "dist/esm/index.js",
      format: "esm",
      plugins,
    },
    ...commonConfig,
  },
  {
    input: "src/index.ts",
    output: {
      file: "dist/min/index.min.js",
      format: "umd",
      name: "Ornament",
      plugins,
    },
    ...commonConfig,
  },
];