From ce1a58bf58a9fd1f139ceb4fa4e3ba89947f7062 Mon Sep 17 00:00:00 2001
From: Jarrod Johnson <jjohnson2@lenovo.com>
Date: Wed, 11 Jul 2018 13:17:37 -0400
Subject: [PATCH] Provide a more specific error when file doesn't exist

nodemedia does check locally, but server should also check it, in
case of remote *and* service nodes.
---
 confluent_server/confluent/firmwaremanager.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/confluent_server/confluent/firmwaremanager.py b/confluent_server/confluent/firmwaremanager.py
index 1cfd2583..13e0c205 100644
--- a/confluent_server/confluent/firmwaremanager.py
+++ b/confluent_server/confluent/firmwaremanager.py
@@ -21,6 +21,8 @@
 import confluent.exceptions as exc
 import confluent.messages as msg
 import eventlet
+import os
+import socket
 
 updatesbytarget = {}
 uploadsbytarget = {}
@@ -28,6 +30,10 @@ updatepool = eventlet.greenpool.GreenPool(256)
 
 
 def execupdate(handler, filename, updateobj, type):
+    if not os.path.exists(filename):
+        raise exc.InvalidArgumentException(
+            '{0} does not appear to exist on {1}'.format(filename,
+                                                         socket.gethostname()))
     try:
         if type == 'firmware':
             completion = handler(filename, progress=updateobj.handle_progress,