rector.php

<?php

declare(strict_types=1);

use DrupalFinder\DrupalFinder;
use DrupalRector\Set\Drupal8SetList;
use DrupalRector\Set\Drupal9SetList;
use Rector\Config\RectorConfig;
use Rector\Set\ValueObject\SetList;

$drupalFinder = new DrupalFinder();
$drupalFinder->locateRoot(__DIR__);
$drupalRoot = $drupalFinder->getDrupalRoot();

// Adjust the set lists to be more granular to your Drupal requirements.
// @todo find out how to only load the relevant rector rules.
//   Should we try and load \Drupal::VERSION and check?
$rectorConfig = RectorConfig::configure()->withPreparedSets()->withSets([
  Drupal8SetList::DRUPAL_8,
  Drupal9SetList::DRUPAL_9,
])->withAutoloadPaths([
  $drupalRoot . '/core',
  $drupalRoot . '/modules',
  $drupalRoot . '/profiles',
  $drupalRoot . '/themes',
])->withSkip([
  '*/upgrade_status/tests/modules/*',
  'node_modules/*',
])->withFileExtensions([
  'php', 'module', 'theme', 'install', 'profile', 'inc', 'engine',
])->withImportNames(importShortClasses: FALSE, importDocBlockNames: FALSE, removeUnusedImports: FALSE, importNames: FALSE);

return $rectorConfig;