File fix-46492-file.blockreplace-throws-indexerror.patch of Package salt.9090

From b9b3c233800884239f65b9d7f97b37fecf82c2f2 Mon Sep 17 00:00:00 2001
From: Florian Bergmann <fbergmann@suse.de>
Date: Thu, 19 Jul 2018 13:53:29 +0200
Subject: [PATCH] Fix #46492: file.blockreplace throws IndexError.

Also fixes bsc#1101812.

This was discovered to affect SUSE CaaS Platform during a test-upgrade of salt
to version 2018.3.0: it breaks the update orchestration.
---
 salt/modules/file.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/salt/modules/file.py b/salt/modules/file.py
index 74051064f2..7ce71b495f 100644
--- a/salt/modules/file.py
+++ b/salt/modules/file.py
@@ -2560,7 +2560,7 @@ def blockreplace(path,
 
                         # Trim any trailing new lines to avoid unwanted
                         # additional new lines
-                        while not split_content[-1]:
+                        while split_content and not split_content[-1]:
                             split_content.pop()
 
                         # push new block content in file
-- 
2.17.1