From ecc90012874370aa9dad8bf33e56de85360ef5eb Mon Sep 17 00:00:00 2001
From: Robert Marshall <rmarshall@redhat.com>
Date: Feb 19 2018 16:25:17 +0000
Subject: Check command input


- check that input for release is a number as expected

Signed-off-by: Robert Marshall <rmarshall@redhat.com>

---

diff --git a/scripts/branching/make-koji-release-tags b/scripts/branching/make-koji-release-tags
index cc713a8..ecefef8 100755
--- a/scripts/branching/make-koji-release-tags
+++ b/scripts/branching/make-koji-release-tags
@@ -2,6 +2,20 @@
 
 release=$1
 
+case "${release}" in
+    ''|*[!0-9]*)
+        is_number="false"
+        ;;
+    *)
+        is_number="true"
+        ;;
+esac
+
+if [ "${is_number}" = "false" ]; then
+    echo "The release value may only be a number."
+    exit 1
+fi
+
 old_release=$(bc -l <<< "${release}-1")
 
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