From 9ba05057517fcf01b30d97f085ede38d0c13d27a Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Mon, 20 Feb 2012 12:35:03 +0100
Subject: [PATCH] Make sure lock file is sorted, fixes #276

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

diff --git a/src/Composer/Package/Locker.php b/src/Composer/Package/Locker.php
index 24aafae8f..c55c0e467 100644
--- a/src/Composer/Package/Locker.php
+++ b/src/Composer/Package/Locker.php
@@ -129,6 +129,9 @@ class Locker
 
             $lock['packages'][] = $spec;
         }
+        usort($lock['packages'], function ($a, $b) {
+            return strcmp($a['package'], $b['package']);
+        });
 
         $this->lockFile->write($lock);
     }