From 52c80d9daef676228dec221ad149567d05be5f2f Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Mon, 1 Jul 2013 17:34:03 -0300
Subject: Add a next release parameter on system-upgrade

---
 share/hydractl/system-upgrade | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/share/hydractl/system-upgrade b/share/hydractl/system-upgrade
index 0a8e6de..7942813 100755
--- a/share/hydractl/system-upgrade
+++ b/share/hydractl/system-upgrade
@@ -22,6 +22,7 @@ hydra_config_load
 
 # Command line arguments
 BASENAME="`basename $0`"
+NEXTRELEASE="$1"
 
 # Available releases
 #release="`facter lsbdistcodename`" # this doesn't work on squeeze
@@ -34,6 +35,19 @@ if [ "$?" != "0" ]; then
   exit 1
 fi
 
+# Check optional parameter
+if [ ! -z "$NEXTRELEASE" ]; then
+  if [ "$NEXTRELEASE" == "$release" ]; then
+    echo "System is already upgraded to $NEXTRELEASE"
+    exit 1
+  fi
+
+  if [ "$NEXTRELEASE" != "$nextrelease" ]; then
+    echo "Cannot upgrade: next release for this system is $nextrelease"
+    exit 1
+  fi
+fi
+
 # Ensure puppet is stopped during the process
 echo "Disabling puppet during the upgrade..."
 service puppet stop
-- 
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