From ae64592ba0d6b97595393eae2b175c32581f8c8f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Vo=C5=99=C3=AD=C5=A1ek?= <mvorisek@mvorisek.cz>
Date: Mon, 5 Apr 2021 15:10:28 +0200
Subject: [PATCH] Allow to manage dot files as usual

---
 src/Finder.php | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/Finder.php b/src/Finder.php
index 68a6a3216a4..91ba3d3b6f0 100644
--- a/src/Finder.php
+++ b/src/Finder.php
@@ -13,6 +13,7 @@
 namespace PhpCsFixer;
 
 use Symfony\Component\Finder\Finder as BaseFinder;
+use Symfony\Component\Finder\Iterator\LazyIterator;
 
 /**
  * @author Fabien Potencier <fabien@symfony.com>
@@ -27,11 +28,19 @@ public function __construct()
         $this
             ->files()
             ->name('*.php')
-            ->ignoreDotFiles(false)
-            ->notPath('~(^|/)\.(?!php_cs(\.dist)?(/|$)).+(/|$)~')
-            ->name('.php_cs')
-            ->name('.php_cs.dist')
             ->exclude('vendor')
         ;
+
+        // add config files even if dot files are ignored
+        if (class_exists(LazyIterator::class)) { // LazyIterator class is available since Symfony 4.4 (which requires PHP 7+)
+            $mainIterator = $this; // @phpstan-ignore-line
+            $this->append(new \IteratorIterator(new LazyIterator(function () use ($mainIterator) {
+                $iterator = clone $mainIterator;
+                $iterator->ignoreDotFiles(false);
+                $iterator->name('~^\.(php_cs(\..+)?$~is');
+
+                return $iterator;
+            })));
+        }
     }
 }