scripts/format-xml.js

import fs from 'fs';
import path from 'path';

function formatXml(xml) {
  let formatted = '';
  let pad = 0;
  xml = xml.replace(/(>)(<)(\/*)/g, '$1\r\n$2$3');
  xml.split('\r\n').forEach(node => {
    let indent = 0;
    if (node.match(/.+<\/\w[^>]*>$/)) {
      indent = 0;
    } else if (node.match(/^<\/\w/)) {
      if (pad !== 0) { pad -= 1; }
    } else if (node.match(/^<\w[^>]*[^\/]>.*$/)) {
      indent = 1;
    } else {
      indent = 0;
    }
    
    formatted += '  '.repeat(pad) + node + '\r\n';
    pad += indent;
  });
  return formatted.trim();
}

const filesToFormat = [
  'dist/client/sitemap-index.xml',
  'dist/client/sitemap-0.xml',
  'dist/client/sitemap-1.xml',
  'dist/client/sitemap-2.xml',
  'dist/client/sitemap-3.xml',
  'dist/client/sitemap-4.xml',
  'dist/client/sitemap-5.xml',
  '.vercel/output/static/sitemap-index.xml',
  '.vercel/output/static/sitemap-0.xml',
  '.vercel/output/static/sitemap-1.xml',
  '.vercel/output/static/sitemap-2.xml',
  '.vercel/output/static/sitemap-3.xml',
  '.vercel/output/static/sitemap-4.xml',
  '.vercel/output/static/sitemap-5.xml'
];

filesToFormat.forEach(filePath => {
  const fullPath = path.resolve(process.cwd(), filePath);
  if (fs.existsSync(fullPath)) {
    const xmlContent = fs.readFileSync(fullPath, 'utf8');
    const prettyXml = formatXml(xmlContent);
    fs.writeFileSync(fullPath, prettyXml, 'utf8');
    console.log(`Formatted XML: ${filePath}`);
  }
});