From 070ee506937170bb81a2e352aa444eaf29f0a2f6 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Sun, 28 Feb 2016 14:08:43 +0000
Subject: [PATCH] Actually check for the dir existence before retrying, refs
 #4009

---
 src/Composer/Util/Filesystem.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Composer/Util/Filesystem.php b/src/Composer/Util/Filesystem.php
index 041be9e3b..d0e951390 100644
--- a/src/Composer/Util/Filesystem.php
+++ b/src/Composer/Util/Filesystem.php
@@ -152,6 +152,9 @@ class Filesystem
             // sometimes fails without apparent reason, see https://github.com/composer/composer/issues/4009
             clearstatcache();
             usleep(100000);
+            if (!is_dir($directory)) {
+                return true;
+            }
             $it = new RecursiveDirectoryIterator($directory, RecursiveDirectoryIterator::SKIP_DOTS);
         }
         $ri = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::CHILD_FIRST);