src: add cache info to the image/restore response

Add a 'cache' field into the json payload the client sends to
the server after a restore operation so the server can update
the new cache contents.

Resquest response structure:
{
    ...
    'cache': [
        {'name': 'windows.img', 'size': 2432370213, checksum: '5d4dcc677bc19f40a647d0002f4ade90'},
        {'name': 'linux.img', 'size': 243234534213, checksum: '3eb22f888f88a55ad954f55644e1192e'}
    ]
    ...
}

src/live/ogOperations.py

@@ -452,6 +452,14 @@ class OgLiveOperations:
 
         logging.info('Image restore command OK')
 
+        json_dict = {
+            'disk': request.getDisk(),
+            'partition': request.getPartition(),
+            'image_id': request.getId(),
+            'cache': self._get_cache_contents(),
+        }
+        return json_dict
+
     def image_create(self, request, ogRest):
         disk = int(request.getDisk())
         partition = int(request.getPartition())

src/ogRest.py

@@ -170,15 +170,12 @@ class ogThread():
 
 	def image_restore(client, request, ogRest):
 		try:
-			ogRest.operations.image_restore(request, ogRest)
+			payload = ogRest.operations.image_restore(request, ogRest)
 		except Exception as e:
 			ogRest.send_internal_server_error(client, exc=e)
 			return
 
-		json_body = jsonBody()
-		json_body.add_element('disk', request.getDisk())
-		json_body.add_element('partition', request.getPartition())
-		json_body.add_element('image_id', request.getId())
+		json_body = jsonBody(payload)
 
 		response = restResponse(ogResponses.OK, json_body, seq=client.seq)
 		client.send(response.get())

src/virtual/ogOperations.py

@@ -457,7 +457,14 @@ class OgVirtualOperations:
         subprocess.run([f'umount {self.OG_IMAGES_PATH}'], shell=True)
         self.refresh(ogRest)
 
-        return True
+        json_dict = {
+            'disk': request.getDisk(),
+            'partition': request.getPartition(),
+            'image_id': request.getId(),
+            'cache': [],
+        }
+
+        return json_dict
 
     def cache_delete(self, request, ogRest):
         raise NotImplementedError