From b58f060fda0953139abc4b9ff99ff4878e3d4638 Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Wed, 7 Jun 2017 09:53:54 +0200
Subject: [PATCH] [FrameworkBundle] Fix perf issue in
 CacheClearCommand::warmup()

---
 .../FrameworkBundle/Command/CacheClearCommand.php      | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/Symfony/Bundle/FrameworkBundle/Command/CacheClearCommand.php b/src/Symfony/Bundle/FrameworkBundle/Command/CacheClearCommand.php
index 84c2fae7d4..5e9014bfc5 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Command/CacheClearCommand.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Command/CacheClearCommand.php
@@ -141,7 +141,7 @@ EOF
         $safeTempKernel = str_replace('\\', '\\\\', get_class($tempKernel));
         $realKernelFQN = get_class($realKernel);
 
-        foreach (Finder::create()->files()->name('*.meta')->in($warmupDir) as $file) {
+        foreach (Finder::create()->files()->depth('<3')->name('*.meta')->in($warmupDir) as $file) {
             file_put_contents($file, preg_replace(
                 '/(C\:\d+\:)"'.$safeTempKernel.'"/',
                 sprintf('$1"%s"', $realKernelFQN),
@@ -153,14 +153,16 @@ EOF
         $search = array($warmupDir, str_replace('\\', '\\\\', $warmupDir));
         $replace = str_replace('\\', '/', $realCacheDir);
         foreach (Finder::create()->files()->in($warmupDir) as $file) {
-            $content = str_replace($search, $replace, file_get_contents($file));
-            file_put_contents($file, $content);
+            $content = str_replace($search, $replace, file_get_contents($file), $count);
+            if ($count) {
+                file_put_contents($file, $content);
+            }
         }
 
         // fix references to container's class
         $tempContainerClass = get_class($tempKernel->getContainer());
         $realContainerClass = get_class($realKernel->getContainer());
-        foreach (Finder::create()->files()->name($tempContainerClass.'*')->in($warmupDir) as $file) {
+        foreach (Finder::create()->files()->depth('<2')->name($tempContainerClass.'*')->in($warmupDir) as $file) {
             $content = str_replace($tempContainerClass, $realContainerClass, file_get_contents($file));
             file_put_contents($file, $content);
             rename($file, str_replace(DIRECTORY_SEPARATOR.$tempContainerClass, DIRECTORY_SEPARATOR.$realContainerClass, $file));