website/_frontend/rollup.config.js

import { defineConfig } from 'rollup'

import resolve from '@rollup/plugin-node-resolve'
import babel from '@rollup/plugin-babel'
import { terser } from 'rollup-plugin-terser'
import esbuild from 'rollup-plugin-esbuild'

export default defineConfig([
    {
        input: 'src/base.js',
        output: {
            file: 'out/base.min.js',
            format: 'iife',
        },
        plugins: [terser()],
    },
    {
        input: 'src/utenti.js',
        external: ['alpinejs', 'fuse.js'], // libraries to not bundle
        output: {
            file: 'out/utenti.min.js',
            format: 'iife',
            globals: {
                // map library names to global constants
                alpinejs: 'Alpine',
                'fuse.js': 'Fuse',
            },
        },
        plugins: [terser()],
    },
    {
        input: 'src/profilo.js',
        external: ['alpinejs'],
        output: {
            file: 'out/profilo.min.js',
            format: 'iife',
            globals: {
                alpinejs: 'Alpine',
            },
        },
        plugins: [terser()],
    },
    {
        input: 'src/homepage-art.ts',
        output: {
            file: 'out/homepage-art.min.js',
            format: 'iife',
        },
        plugins: [esbuild({ minify: true })],
    },
    {
        input: 'src/appunti-condivisi/main.jsx',
        output: {
            file: 'out/appunti-condivisi.min.js',
            format: 'iife',
        },
        plugins: [
            resolve(),
            babel({
                babelHelpers: 'bundled',
                presets: [
                    [
                        '@babel/preset-react',
                        {
                            runtime: 'automatic',
                            importSource: 'preact',
                        },
                    ],
                ],
            }),
            // https://rollupjs.org/guide/en/#-w--watch
            !process.env.ROLLUP_WATCH && terser(),
        ],
    },
])