rollup.config.js

import typescript from 'rollup-plugin-typescript2';
import * as path from 'path';
import * as fs from 'fs';
import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import json from '@rollup/plugin-json';
import { terser } from 'rollup-plugin-terser';

const BASE_PATH = process.cwd();

const functions = [];

const builtIns = ['oas', 'asyncapi'];

for (const rulesetName of builtIns) {
  const targetDir = path.join(BASE_PATH, `dist/rulesets/${rulesetName}/functions/`);

  if (!fs.existsSync(targetDir)) {
    continue;
  }

  for (const file of fs.readdirSync(targetDir)) {
    const targetFile = path.join(targetDir, file);
    const stat = fs.statSync(targetFile);
    if (!stat.isFile()) continue;
    const ext = path.extname(targetFile);
    if (ext !== '.js') continue;

    functions.push(targetFile);
  }
}

module.exports = functions.map(fn => ({
  input: fn,
  plugins: [
    typescript({
      tsconfig: path.join(BASE_PATH, './tsconfig.rollup.json'),
      include: ['dist/**/*.{ts,tsx}'],
    }),
    resolve(),
    commonjs(),
    json(),
    terser(),
  ],
  output: {
    file: fn,
    format: 'cjs',
    exports: 'named',
  },
}));