From 5c1bcb9289c7fb563f50b88c2798426d941f68a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Tamarelle?= <jerome@tamarelle.net>
Date: Wed, 9 Apr 2025 00:27:30 +0200
Subject: [PATCH] [TwigBundle] Skip build dir warmup when auto-reload is
 enabled

---
 .../TwigBundle/CacheWarmer/TemplateCacheWarmer.php    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php b/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php
index 868dc076cfd9e..5fd9030886540 100644
--- a/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php
+++ b/src/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheWarmer.php
@@ -41,6 +41,17 @@ public function warmUp(string $cacheDir, ?string $buildDir = null): array
     {
         $this->twig ??= $this->container->get('twig');
 
+        // No cache, nothing to warmup
+        if (!$this->twig->getCache()) {
+            return [];
+        }
+
+        // When auto-reload is enabled, cache don't need to be warmed up during the initial build.
+        // This speedups dev env when the build dir is configured.
+        if ($buildDir && $this->twig->isAutoReload()) {
+            return [];
+        }
+
         foreach ($this->iterator as $template) {
             try {
                 $this->twig->load($template);