From 5e9fa6481940c9220738716f9bd83345f6af91a4 Mon Sep 17 00:00:00 2001
From: Georg Ehrke <developer@georgehrke.com>
Date: Tue, 10 Jun 2014 18:38:21 +0200
Subject: [PATCH] don't show update button when appstore is disabled or no
 writable dir exists

---
 lib/private/installer.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/lib/private/installer.php b/lib/private/installer.php
index 1589610aed4..96c6841c2aa 100644
--- a/lib/private/installer.php
+++ b/lib/private/installer.php
@@ -347,6 +347,21 @@ class OC_Installer{
 	 * The function will check if an update for a version is available
 	 */
 	public static function isUpdateAvailable( $app ) {
+		static $isInstanceReadyForUpdates = null;
+
+		if ($isInstanceReadyForUpdates === null) {
+			$installPath = OC_App::getInstallPath();
+			if ($installPath === false || $installPath === null) {
+				$isInstanceReadyForUpdates = false;
+			} else {
+				$isInstanceReadyForUpdates = true;
+			}
+		}
+
+		if ($isInstanceReadyForUpdates === false) {
+			return false;
+		}
+
 		$ocsid=OC_Appconfig::getValue( $app, 'ocsid', '');
 
 		if($ocsid<>'') {