From 9f961dca92f8b9a66338887b8df8dedbe6ea6213 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Wed, 27 Feb 2013 15:45:04 +0100
Subject: [PATCH] Guard against arrays being passed to is_file, fixes #1627

---
 src/Composer/Downloader/ArchiveDownloader.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Composer/Downloader/ArchiveDownloader.php b/src/Composer/Downloader/ArchiveDownloader.php
index c8cd77890..3a7f6bb9e 100644
--- a/src/Composer/Downloader/ArchiveDownloader.php
+++ b/src/Composer/Downloader/ArchiveDownloader.php
@@ -57,7 +57,7 @@ abstract class ArchiveDownloader extends FileDownloader
                 $contentDir = $contentDir[0];
             }
 
-            if (is_file($contentDir)) {
+            if (is_string($contentDir) && is_file($contentDir)) {
                 $this->filesystem->rename($contentDir, $path . '/' . basename($contentDir));
             } else {
                 foreach (array_merge(glob($contentDir . '/.*'), glob($contentDir . '/*')) as $file) {