From 8d087f2b2b4d546ba1b8dbb96b32b2a09df8983b Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Thu, 8 Mar 2012 00:12:38 +0100
Subject: [PATCH] Fixes to Filesystem class, avoid removing non-existing dirs
 and clear stat cache for safety

---
 src/Composer/Util/Filesystem.php | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Util/Filesystem.php b/src/Composer/Util/Filesystem.php
index 4f6e324ac..201f44a7e 100644
--- a/src/Composer/Util/Filesystem.php
+++ b/src/Composer/Util/Filesystem.php
@@ -19,13 +19,22 @@ class Filesystem
 {
     public function removeDirectory($directory)
     {
+        if (!is_dir($directory)) {
+            return true;
+        }
+
         if (defined('PHP_WINDOWS_VERSION_BUILD')) {
             $cmd = sprintf('rmdir /S /Q %s', escapeshellarg(realpath($directory)));
         } else {
             $cmd = sprintf('rm -rf %s', escapeshellarg($directory));
         }
 
-        return $this->getProcess()->execute($cmd) === 0;
+        $result = $this->getProcess()->execute($cmd) === 0;
+
+        // clear stat cache because external processes aren't tracked by the php stat cache
+        clearstatcache();
+
+        return $result;
     }
 
     public function ensureDirectoryExists($directory)