Added syntax sugar to configure parallel run for PHP CS Fixer

* Added `\Ibexa\CodeStyle\PhpCsFixer\InternalConfigFactory::runInParallel`

Author: alongosz

src/lib/PhpCsFixer/InternalConfigFactory.php

@@ -11,6 +11,8 @@
 use Composer\InstalledVersions;
 use Ibexa\CodeStyle\PhpCsFixer\Sets\RuleSetInterface;
 use PhpCsFixer\ConfigInterface;
+use PhpCsFixer\ParallelAwareConfigInterface;
+use PhpCsFixer\Runner\Parallel\ParallelConfigFactory;
 
 /**
  * Factory for Config instance that should be used for all internal Ibexa packages.
@@ -24,6 +26,8 @@ final class InternalConfigFactory
 
     private RuleSetInterface $ruleSet;
 
+    private bool $runInParallel = false;
+
     /**
      * @param array<string, mixed> $rules
      */
@@ -46,6 +50,13 @@ public function getRuleSet(): RuleSetInterface
         return $this->ruleSet ??= $this->createRuleSetFromPackage(InstalledVersions::getRootPackage());
     }
 
+    public function runInParallel(bool $runInParallel = true): self
+    {
+        $this->runInParallel = $runInParallel;
+
+        return $this;
+    }
+
     /**
      * @param array{name: string, version: string, pretty_version?: string} $package
      */
@@ -78,6 +89,10 @@ public function buildConfig(): ConfigInterface
             $this->customRules,
         ));
 
+        if ($this->runInParallel && $config instanceof ParallelAwareConfigInterface) {
+            $config->setParallelConfig(ParallelConfigFactory::detect());
+        }
+
         return $config;
     }