From fabf5c2f6d816a3f3dbc453119f7603670275437 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Wed, 9 May 2012 20:03:19 +0200
Subject: [PATCH] Add InstalledArrayRepository to make sure the root package is
 not purged by the Pool because of a lower stability

---
 src/Composer/Installer.php                    |  3 +-
 .../Repository/InstalledArrayRepository.php   | 42 +++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 src/Composer/Repository/InstalledArrayRepository.php

diff --git a/src/Composer/Installer.php b/src/Composer/Installer.php
index 62e746234..0ad433c90 100644
--- a/src/Composer/Installer.php
+++ b/src/Composer/Installer.php
@@ -29,6 +29,7 @@ use Composer\Package\Locker;
 use Composer\Package\PackageInterface;
 use Composer\Repository\ArrayRepository;
 use Composer\Repository\CompositeRepository;
+use Composer\Repository\InstalledArrayRepository;
 use Composer\Repository\PlatformRepository;
 use Composer\Repository\RepositoryInterface;
 use Composer\Repository\RepositoryManager;
@@ -139,7 +140,7 @@ class Installer
         $repos = array_merge(
             $this->repositoryManager->getLocalRepositories(),
             array(
-                new ArrayRepository(array($this->package)),
+                new InstalledArrayRepository(array($this->package)),
                 new PlatformRepository(),
             )
         );
diff --git a/src/Composer/Repository/InstalledArrayRepository.php b/src/Composer/Repository/InstalledArrayRepository.php
new file mode 100644
index 000000000..151d00190
--- /dev/null
+++ b/src/Composer/Repository/InstalledArrayRepository.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Repository;
+
+use Composer\Json\JsonFile;
+use Composer\Package\PackageInterface;
+use Composer\Package\Loader\ArrayLoader;
+use Composer\Package\Dumper\ArrayDumper;
+
+/**
+ * Installed array repository.
+ *
+ * This is used for serving the RootPackage inside an in-memory InstalledRepository
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class InstalledArrayRepository extends ArrayRepository implements InstalledRepositoryInterface
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function write()
+    {
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function reload()
+    {
+    }
+}