Doric/rollup.config.js

import resolve from 'rollup-plugin-node-resolve'
import commonjs from 'rollup-plugin-commonjs'
import bundles from './build/index'
import fs from 'fs'
import path from 'path'

function readDirs(dirPath, files) {
    if (fs.statSync(dirPath).isDirectory()) {
        fs.readdirSync(dirPath).forEach(e => {
            readDirs(path.join(dirPath, e), files)
        })
    } else {
        for (let bundle of bundles) {
            if (dirPath.match(new RegExp(`^${bundle}`))) {
                files.push(dirPath)
            }
        }
    }
}


const dirs = fs.readdirSync('.')
    .filter(e => {
        for (let bundle of bundles) {
            if (bundle.match(new RegExp(`^${e}/`))) {
                return true
            }
        }
        return false
    })

const allFiles = []

dirs.forEach(e => {
    readDirs(e, allFiles)
})

export default allFiles
    .map(e => e.replace('.ts', ''))
    .map(bundle => {
        return {
            input: `build/${bundle}.js`,
            output: {
                format: "cjs",
                file: `bundle/${bundle}.js`,
                sourcemap: true,
            },
            plugins: [
                resolve({ mainFields: ["jsnext"] }),
                commonjs()
            ],
            external: ['reflect-metadata', 'doric'],
            onwarn: function (warning) {
                if (warning.code === 'THIS_IS_UNDEFINED') { return; }
                console.warn(warning.message);
            }
        }
    })