From 4d665f59b0dad088025cdcefc544dd9ad7f73b85 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Fri, 27 Feb 2015 12:20:42 +0000
Subject: [PATCH] Create lock if we only have platform dependencies

---
 src/Composer/Package/Locker.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Composer/Package/Locker.php b/src/Composer/Package/Locker.php
index 40ff8907c..171cf0362 100644
--- a/src/Composer/Package/Locker.php
+++ b/src/Composer/Package/Locker.php
@@ -258,7 +258,10 @@ class Locker
             $lock['packages-dev'] = $this->lockPackages($devPackages);
         }
 
-        if (empty($lock['packages']) && empty($lock['packages-dev'])) {
+        $lock['platform'] = $platformReqs;
+        $lock['platform-dev'] = $platformDevReqs;
+
+        if (empty($lock['packages']) && empty($lock['packages-dev']) && empty($lock['platform']) && empty($lock['platform-dev'])) {
             if ($this->lockFile->exists()) {
                 unlink($this->lockFile->getPath());
             }
@@ -266,9 +269,6 @@ class Locker
             return false;
         }
 
-        $lock['platform'] = $platformReqs;
-        $lock['platform-dev'] = $platformDevReqs;
-
         if (!$this->isLocked() || $lock !== $this->getLockData()) {
             $this->lockFile->write($lock);
             $this->lockDataCache = null;