Kirby CMS Command to Find duplicate Uuids

findDuplUuids.php

<?php

use Kirby\CLI\CLI;
use Kirby\Cms\Page;

return [
  'description' => 'Find duplicate Uuids',
  'args' => [],
  'command' => static function (CLI $cli): void {
      // 1) find uuids and their pages
      $uniqueids = [];
      foreach (site()->index(true) as $page) {
          /* @var Page $page */
          $uniqueids[$page->uuid()->id()][] = $page->contentFiles()[0];
      }
      // 2) foreach uuid that has more than one page
      $duplicates = array_filter($uniqueids, function ($pages) {
          return count($pages) > 1;
      });
      foreach ($duplicates as $uuid => $pages) {
          $cli->error($uuid);
          foreach ($pages as $page) {
              $cli->out('↳ ' . $page);
          }
      }

      $result = [
        'status' => 200,
        'uuids' => count($uniqueids),
        'duplicates' => count($duplicates),
      ];

      $cli->success(print_r($result, true));

      janitor()->data($cli->arg('command'), $result);
  }
];