From a920f94804a2d384c3266e289b482d3f84b48747 Mon Sep 17 00:00:00 2001
From: Kilian Cavalotti <kilian@stanford.edu>
Date: Mon, 18 Dec 2017 11:54:30 -0800
Subject: [PATCH] check if the include line is already there before adding it
 to the file

---
 xCAT-server/lib/xcat/plugins/ddns.pm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
 mode change 100755 => 100644 xCAT-server/lib/xcat/plugins/ddns.pm

diff --git a/xCAT-server/lib/xcat/plugins/ddns.pm b/xCAT-server/lib/xcat/plugins/ddns.pm
old mode 100755
new mode 100644
index 9fb754983..094edc9c0
--- a/xCAT-server/lib/xcat/plugins/ddns.pm
+++ b/xCAT-server/lib/xcat/plugins/ddns.pm
@@ -1287,10 +1287,13 @@ sub update_namedconf {
         my @includes = split /[ ,]/, $site_entry;
         foreach (@includes) {
             if (defined($_)) {
-                push @newnamed, "include \"$_\";\n";
+                my $line = "include \"$_\";\n";
+                unless (grep{/$line/} @newnamed) {
+                    push @newnamed, "include \"$_\";\n";
+                }
             }
-        }
         push @newnamed, "\n";
+        }
     }
 
     unless ($slave) {