From ad69d15590c5912022dfed249aa89e2cf6544189 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Thu, 28 Mar 2013 14:24:54 +0100
Subject: [PATCH] Fix self-update error handling, fixes #1738

---
 src/Composer/Command/SelfUpdateCommand.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Command/SelfUpdateCommand.php b/src/Composer/Command/SelfUpdateCommand.php
index 3192f47d3..b9381abb1 100644
--- a/src/Composer/Command/SelfUpdateCommand.php
+++ b/src/Composer/Command/SelfUpdateCommand.php
@@ -50,10 +50,16 @@ EOT
 
             $remoteFilename = $protocol . '://getcomposer.org/composer.phar';
             $localFilename = $_SERVER['argv'][0];
-            $tempFilename = basename($localFilename, '.phar').'-temp.phar';
+            $tempFilename = dirname($localFilename) . '/' . basename($localFilename, '.phar').'-temp.phar';
 
             $rfs->copy('getcomposer.org', $remoteFilename, $tempFilename);
 
+            if (!file_exists($tempFilename)) {
+                $output->writeln('<error>The download of the new composer version failed for an unexpected reason');
+
+                return 1;
+            }
+
             try {
                 chmod($tempFilename, 0777 & ~umask());
                 // test the phar validity