make it possible to load apps seperately. needed to fix oc-910 without breaking oc-863

lib/app.php

@@ -27,7 +27,6 @@
  * upgrading and removing apps.
  */
 class OC_App{
-	static private $init = false;
 	static private $apps = array();
 	static private $activeapp = '';
 	static private $navigation = array();
@@ -36,6 +35,7 @@ class OC_App{
 	static private $personalForms = array();
 	static private $appInfo = array();
 	static private $appTypes = array();
+	static private $loadedApps = array();
 
 	/**
 	 * @brief loads all apps
@@ -49,15 +49,11 @@ class OC_App{
 	 * if $types is set, only apps of those types will be loaded
 	 */
 	public static function loadApps($types=null){
-		// Did we already load everything?
-		if( self::$init ){
-			return true;
-		}
-
 		// Our very own core apps are hardcoded
 		foreach( array( 'settings') as $app ){
-			if(is_null($types)){
+			if(is_null($types) && !in_array($app, self::$loadedApps)){
 				require( $app.'/appinfo/app.php' );
+				self::$loadedApps[] = $app;
 			}
 		}
 
@@ -66,14 +62,13 @@ class OC_App{
 		// prevent app.php from printing output
 		ob_start();
 		foreach( $apps as $app ){
-			if((is_null($types) or self::isType($app,$types))){
+			if((is_null($types) or self::isType($app,$types)) && !in_array($app, self::$loadedApps)){
 				self::loadApp($app);
+				self::$loadedApps[] = $app;
 			}
 		}
 		ob_end_clean();
 
-		self::$init = true;
-
 		// return
 		return true;
 	}
@@ -129,7 +124,7 @@ class OC_App{
 	 */
 	public static function setAppTypes($app){
 		$appData=self::getAppInfo($app);
-		
+
 		if(isset($appData['types'])){
 			$appTypes=implode(',',$appData['types']);
 		}else{
@@ -191,7 +186,7 @@ class OC_App{
 		if($app!==false){
 			// check if the app is compatible with this version of ownCloud
 			$info=OC_App::getAppInfo($app);
-			$version=OC_Util::getVersion();	
+			$version=OC_Util::getVersion();
 	                if(!isset($info['require']) or ($version[0]>$info['require'])){
 				OC_Log::write('core','App "'.$info['name'].'" can\'t be installed because it is not compatible with this version of ownCloud',OC_Log::ERROR);
 				return false;
@@ -525,13 +520,13 @@ class OC_App{
 				}
 			}
 		}
-		
+
 		// check if the current enabled apps are compatible with the current ownCloud version. disable them if not.
 		// this is important if you upgrade ownCloud and have non ported 3rd party apps installed
 		$apps =OC_App::getEnabledApps();
 		$version=OC_Util::getVersion();
 		foreach($apps as $app) {
-		
+
 			// check if the app is compatible with this version of ownCloud
 			$info=OC_App::getAppInfo($app);
 			if(!isset($info['require']) or ($version[0]>$info['require'])){
@@ -539,12 +534,12 @@ class OC_App{
 				OC_App::disable( $app );
 			}
 
-	
-			
+
+
 		}
-		
-		
-		
+
+
+
 	}
 
 	/**