rollup.config.mjs

import esbuild from 'rollup-plugin-esbuild';
import { nodeResolve } from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import json from '@rollup/plugin-json';
import { readFileSync } from 'fs';

const pkgJson = JSON.parse(readFileSync("./package.json"));

const external = Object.keys(pkgJson.dependencies).concat(
    Object.keys(pkgJson.optionalDependencies || {}),
    [
        'http-proxy-agent',
        'https-proxy-agent',
        'socks-proxy-agent',
        'websnark/src/utils',
        'websnark/src/groth16',
    ]
);

const config = [
    {
        input: 'src/index.ts',
        output: [
            {
                file: pkgJson.main,
                format: "cjs",
                esModule: false,
            },
        ],
        external,
        plugins: [
            esbuild({
                include: /\.[jt]sx?$/,
                minify: false,
                sourceMap: true,
                target: 'es2022',
            }),
            commonjs(),
            nodeResolve(),
            json()
        ],
    },
    {
        input: 'src/index.ts',
        output: [
            {
                file: pkgJson.module,
                format: "esm",
            },
        ],
        external,
        plugins: [
            esbuild({
                include: /\.[jt]sx?$/,
                minify: false,
                sourceMap: true,
                target: 'es2022',
            }),
            nodeResolve(),
            json()
        ],
    },
    {
        input: 'src/merkleTreeWorker.ts',
        output: [
            {
                file: 'dist/merkleTreeWorker.js',
                format: "cjs",
                esModule: false,
            },
        ],
        treeshake: 'smallest',
        plugins: [
            esbuild({
                include: /\.[jt]sx?$/,
                minify: false,
                sourceMap: true,
                target: 'es2022',
            }),
            commonjs(),
            nodeResolve(),
            json()
        ],
    }
]

export default config;