rollup.config.js

import pkg from './package.json';
import clear from 'rollup-plugin-clear';
import typescript from '@rollup/plugin-typescript';
import { terser } from 'rollup-plugin-terser';

const banner = `
/**
 * ${pkg.name}@${pkg.version}
 * ${pkg.description}
 * @author ${pkg.author.name} <${pkg.author.email}>
 * @license ${pkg.license}
 */`;

export default {
    input: 'src/index.ts',
    output: [
        {
            file: 'dist/index.mjs',
            format: 'esm',
            sourcemap: true,
            banner,
        },
        {
            dir: 'dist',
            format: 'umd',
            name: 'Sandbox',
            sourcemap: true,
            banner,
        },
    ],
    external: ['tslib'],
    plugins: [
        clear({
            targets: ['dist'],
        }),
        typescript(),
        terser({
            keep_fnames: /^Function$/,
        }),
    ],
};