From a04672532138a560caf68b7ab5f110134f6c30fb Mon Sep 17 00:00:00 2001
From: Roeland Jago Douma <roeland@famdouma.nl>
Date: Wed, 24 Aug 2016 13:22:21 +0200
Subject: [PATCH] Dark autoloader magic for ThemingDefaults

---
 lib/private/Server.php | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/lib/private/Server.php b/lib/private/Server.php
index d3da028a27..55fe71d50a 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -642,10 +642,16 @@ class Server extends ServerContainer implements IServerContainer {
 			return $factory->getManager();
 		});
 		$this->registerService('ThemingDefaults', function(Server $c) {
-			try {
-				$classExists = class_exists('OCA\Theming\ThemingDefaults');
-			} catch (\OCP\AutoloadNotAllowedException $e) {
-				// App disabled or in maintenance mode
+			/*
+			 * Dark magic for autoloader.
+			 * If we do a class_exists it will try to load the class which will
+			 * make composer cache the result. Resulting in errors when enabling
+			 * the theming app.
+			 */
+			$prefixes = \OC::$composerAutoloader->getPrefixesPsr4();
+			if (isset($prefixes['OCA\\Theming\\'])) {
+				$classExists = true;
+			} else {
 				$classExists = false;
 			}