list-released-versions-from-changelogs.mjs

#!/usr/bin/env node

import fs from 'node:fs';
import { createInterface } from 'node:readline';

const dataFolder = new URL('../../doc/changelogs/', import.meta.url);

const result = [];
async function getVersionsFromFile(file) {
  const input = fs.createReadStream(file);
  let toc = false;
  for await (const line of createInterface({
    input,
    crlfDelay: Infinity,
  })) {
    if (toc === false && line === '<table>') {
      toc = true;
    } else if (toc && line[0] !== '<') {
      input.close();
      return;
    } else if (toc && line.startsWith('<a')) {
      result.push(line.slice(line.indexOf('>') + 1, -'</a><br/>'.length));
    } else if (toc && line.startsWith('<b><a')) {
      result.push(line.slice(line.indexOf('>', 3) + 1, -'</a></b><br/>'.length));
    }
  }
}

const filesToCheck = [];

const dir = await fs.promises.opendir(dataFolder);
for await (const dirent of dir) {
  if (dirent.isFile()) {
    filesToCheck.push(
      getVersionsFromFile(new URL(dirent.name, dataFolder))
    );
  }
}

await Promise.all(filesToCheck);

console.log(`NODE_RELEASED_VERSIONS=${result.join(',')}`);