From 1dccdd8f1415c7fe63fb59044618435a09619e45 Mon Sep 17 00:00:00 2001
From: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
Date: Tue, 24 Apr 2018 16:33:36 +0530
Subject: [PATCH] saveconfig: fix failure in absence of save file

$ ls /etc/target/
backup

$ targetcli /backstores/user:glfs/testX saveconfig
[Errno 2] No such file or directory: '/etc/target/saveconfig.json'

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
---
 rtslib/root.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/rtslib/root.py b/rtslib/root.py
index 913d8ea..d5a6e43 100644
--- a/rtslib/root.py
+++ b/rtslib/root.py
@@ -184,9 +184,12 @@ class RTSRoot(CFSNode):
         '''
         current = self.dump()
 
-        with open(save_file, "r") as f:
-            saveconf = json.loads(f.read())
-            f.close()
+        if not os.path.exists(save_file):
+            saveconf = {'storage_objects': [], 'targets': []}
+        else:
+            with open(save_file, "r") as f:
+                saveconf = json.loads(f.read())
+                f.close()
 
         fetch_cur_so = False
         fetch_cur_tg = False
-- 
1.8.3.1