[DX] Add deprecation exception about old ContainerConfigurator, to prepare for removal even in CI

src/DependencyInjection/RectorContainerFactory.php

@@ -8,9 +8,9 @@ use Nette\Utils\FileSystem;
 use Psr\Container\ContainerInterface;
 use Rector\Caching\Detector\ChangedFilesDetector;
 use Rector\Core\Autoloading\BootstrapFilesIncluder;
+use Rector\Core\Exception\DeprecatedException;
 use Rector\Core\Kernel\RectorKernel;
 use Rector\Core\ValueObject\Bootstrap\BootstrapConfigs;
-use Symfony\Component\Console\Style\SymfonyStyle;
 
 final class RectorContainerFactory
 {
@@ -24,17 +24,12 @@ final class RectorContainerFactory
             // warning about old syntax before RectorConfig
             $fileContents = FileSystem::read($mainConfigFile);
             if (str_contains($fileContents, 'ContainerConfigurator $containerConfigurator')) {
-                /** @var SymfonyStyle $symfonyStyle */
-                $symfonyStyle = $container->get(SymfonyStyle::class);
-
                 $warningMessage = sprintf(
-                    'Your "%s" config is using old syntax with "ContainerConfigurator".%sUpgrade to "RectorConfig" that allows better autocomplete and future standard: https://getrector.org/blog/new-in-rector-012-introducing-rector-config-with-autocomplete',
+                    'Your "%s" config uses deprecated syntax with "ContainerConfigurator".%sUpgrade to "RectorConfig": https://getrector.org/blog/new-in-rector-012-introducing-rector-config-with-autocomplete',
                     $mainConfigFile,
                     PHP_EOL,
                 );
-                $symfonyStyle->error($warningMessage);
-                // to make message noticable
-                sleep(10);
+                throw new DeprecatedException($warningMessage);
             }
 
             /** @var ChangedFilesDetector $changedFilesDetector */

src/Exception/DeprecatedException.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Core\Exception;
+
+use Exception;
+
+final class DeprecatedException extends Exception
+{
+}