From 63d3964ab5ff2871f7c2f1e04439434d000b7250 Mon Sep 17 00:00:00 2001
From: Niels Keurentjes <niels.keurentjes@omines.com>
Date: Mon, 4 Apr 2016 23:08:18 +0200
Subject: [PATCH] Rollback installation of plugins if corrupted, fixes #5130

---
 src/Composer/Installer/PluginInstaller.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Installer/PluginInstaller.php b/src/Composer/Installer/PluginInstaller.php
index 14aec4462..3eaa62b0d 100644
--- a/src/Composer/Installer/PluginInstaller.php
+++ b/src/Composer/Installer/PluginInstaller.php
@@ -59,7 +59,14 @@ class PluginInstaller extends LibraryInstaller
         }
 
         parent::install($repo, $package);
-        $this->composer->getPluginManager()->registerPackage($package, true);
+        try {
+            $this->composer->getPluginManager()->registerPackage($package, true);
+        } catch(\Exception $e) {
+            // Rollback installation
+            $this->io->writeError('Plugin installation failed, rolling back');
+            parent::uninstall($repo, $package);
+            throw $e;
+        }
     }
 
     /**