From 0c07e36e619d988e65be3411816a665a3bb2a2c7 Mon Sep 17 00:00:00 2001
From: Tomas Votruba <tomas.vot@gmail.com>
Date: Tue, 29 Sep 2026 11:07:18 +0200
Subject: [PATCH] Skip deprecated rules in list-unused-rules script

---
 scripts/list-unused-rules.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/scripts/list-unused-rules.php b/scripts/list-unused-rules.php
index 7d75890964c..55bfee76e10 100644
--- a/scripts/list-unused-rules.php
+++ b/scripts/list-unused-rules.php
@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+use Rector\Configuration\Deprecation\Contract\DeprecatedInterface;
 use Rector\Contract\Rector\ConfigurableRectorInterface;
 use Rector\Scripts\Finder\RectorClassFinder;
 use Rector\Scripts\Finder\RectorSetFilesFinder;
@@ -54,6 +55,14 @@
 
 $unusedRectorRules = array_diff($unusedRectorRules, $configurableRectorRules);
 
+// deprecated rules are intentionally kept out of sets
+$deprecatedRectorRules = array_filter(
+    $unusedRectorRules,
+    static fn (string $rectorClass): bool => is_a($rectorClass, DeprecatedInterface::class, true)
+);
+
+$unusedRectorRules = array_diff($unusedRectorRules, $deprecatedRectorRules);
+
 $symfonyStyle->newLine();
 $symfonyStyle->listing($unusedRectorRules);
 
@@ -63,4 +72,7 @@
 $symfonyStyle->writeln(
     sprintf('<fg=green>Skipped %d configurable Rector rules</>', count($configurableRectorRules))
 );
+$symfonyStyle->writeln(
+    sprintf('<fg=green>Skipped %d deprecated Rector rules</>', count($deprecatedRectorRules))
+);
 $symfonyStyle->newLine();