@porosys/pss/ext.js

Porosys Server Setup (pss): General-purpose server setup and automation tool (including Netdata management)

import { promises as fs } from 'node:fs';

const rgxFrom = /(?<=from )['|"](.*)['|"]/gm;
const rgxDynamicImport = /import\(['|"](.*?)['|"]\)/gm;

async function main() {
  const tsconfig = JSON.parse(
    (await fs.readFile('./tsconfig.json')).toString(),
  );

  return await lsdir(tsconfig.compilerOptions.outDir, async (f) => {
    if (!f.endsWith('.js')) return;

    let code = (await fs.readFile(f)).toString();

    let modified = false;

    // Static imports
    code = code.replace(rgxFrom, (_, p) => {
      if (!(p.startsWith('./') || p.startsWith('../')) || p.endsWith('.js'))
        return `'${p}'`;
      modified = true;
      return `'${p}.js'`;
    });

    // Dynamic imports
    code = code.replace(rgxDynamicImport, (match, p) => {
      if (!(p.startsWith('./') || p.startsWith('../')) || p.endsWith('.js'))
        return match;
      modified = true;
      return `import('${p}.js')`;
    });

    if (!modified) return '';

    await fs.writeFile(f, code);
    return f;
  });
}

main();

async function lsdir(dir, fn) {
  const tree = await fs.readdir(dir, { withFileTypes: true });
  const tasks = tree.map(async (entity) => {
    const pth = `${dir}/${entity.name}`;
    if (entity.isDirectory()) {
      return lsdir(pth, fn);
    }
    return fn(pth);
  });
  return (await Promise.all(tasks)).flat();
}