From 96b07ffb7b5f518fa557db17ce02089f4a5389f7 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Thu, 15 Mar 2012 00:56:04 +0100
Subject: [PATCH] Ensure missing packages are reinstalled if they are deleted
 from the filesystem, fixes #355, fixes #437

---
 src/Composer/Factory.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Composer/Factory.php b/src/Composer/Factory.php
index 8c01066ad..df32d10ec 100644
--- a/src/Composer/Factory.php
+++ b/src/Composer/Factory.php
@@ -104,6 +104,13 @@ class Factory
         // initialize installation manager
         $im = $this->createInstallationManager($rm, $dm, $vendorDir, $binDir, $io);
 
+        // purge packages if they have been deleted on the filesystem
+        foreach ($rm->getLocalRepository()->getPackages() as $package) {
+            if (!$im->isPackageInstalled($package)) {
+                $rm->getLocalRepository()->removePackage($package);
+            }
+        }
+
         // init locker
         $lockFile = substr($composerFile, -5) === '.json' ? substr($composerFile, 0, -4).'lock' : $composerFile . '.lock';
         $locker = new Package\Locker(new JsonFile($lockFile), $rm, md5_file($composerFile));