closes #51

addon.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <addon id="script.xbmcbackup"
-    name="XBMC Backup" version="0.5.3" provider-name="robweber">
+    name="XBMC Backup" version="0.5.4" provider-name="robweber">
   <requires>
     <import addon="xbmc.python" version="2.14.0"/>
   </requires>

changelog.txt

@@ -1,3 +1,7 @@
+Version 0.5.4
+
+check xbmc version when doing a restore
+
 Version 0.5.3
 
 updated python version

resources/language/English/strings.xml

@@ -76,4 +76,6 @@
 	<string id="30082">Progress Bar</string>
 	<string id="30083">Background Progress Bar</string>
 	<string id="30084">None (Silent)</string>
+	<string id="30085">Version Warning</string>
+	<string id="30086">This version of XBMC is different than the one used to create the archive</string>
 </strings>

resources/lib/backup.py

@@ -4,6 +4,7 @@ import xbmcvfs
 import utils as utils
 import os.path
 import time
+import json
 from vfs import XBMCFileSystem,DropboxFileSystem
 
 def folderSort(aKey):
@@ -218,6 +219,10 @@ class XbmcBackup:
                 xbmcgui.Dialog().ok(utils.getString(30010),utils.getString(30045),self.remote_vfs.root_path)
                 return
 
+            if(not self._checkValidationFile(self.remote_vfs.root_path)):
+                #don't continue
+                return
+
             utils.log(utils.getString(30051))
             allFiles = []
             fileManager = FileManager(self.remote_vfs)
@@ -382,11 +387,36 @@ class XbmcBackup:
 
     def _createValidationFile(self):
         vFile = xbmcvfs.File(xbmc.translatePath(utils.data_dir() + "xbmcbackup.val"),'w')
-        vFile.write("XBMC Backup Validation File")
+        vFile.write(json.dumps({"name":"XBMC Backup Validation File","xbmc_version":xbmc.getInfoLabel('System.BuildVersion')}))
+        vFile.write("")
         vFile.close()
 
         self.remote_vfs.put(xbmc.translatePath(utils.data_dir() + "xbmcbackup.val"),self.remote_vfs.root_path + "xbmcbackup.val")
 
+    def _checkValidationFile(self,path):
+        result = False
+        
+        #copy the file and open it
+        self.xbmc_vfs.put(path + "xbmcbackup.val",xbmc.translatePath(utils.data_dir() + "xbmcbackup.val"))
+
+        vFile = xbmcvfs.File(xbmc.translatePath(utils.data_dir() + "xbmcbackup.val"),'r')
+        jsonString = vFile.read()
+        vFile.close()
+
+        try:
+            json_dict = json.loads(jsonString)
+
+            if(xbmc.getInfoLabel('System.BuildVersion') == json_dict['xbmc_version']):
+                result = True
+            else:
+                result = xbmcgui.Dialog().yesno(utils.getString(30085),utils.getString(30086),utils.getString(30044))
+                
+        except ValueError:
+            #may fail on older archives
+            result = True
+
+        return result
+
     def _createResumeBackupFile(self):
         rFile = xbmcvfs.File(xbmc.translatePath(utils.data_dir() + "resume.txt"),'w')
         rFile.write(self.restore_point)