require package argument

diff --git a/docker-builder.sh b/docker-builder.sh
index 69e72d5f18355da929da1c3c4732aad0f6b01890..71bbf54286f114ef8b81e98f0d32085a9bde841d 100755 (executable)
--- a/docker-builder.sh
+++ b/docker-builder.sh
@@ -2,11 +2,12 @@
 set -e
 
 package=$1
-image=pld/cleanbuild 
 
-name=cleanbuild-$package
+test -n "$package" || exit 1
 
 dir=$(pwd)
+image=pld/cleanbuild
+name=cleanbuild-$package
 topdir=$dir/rpm
 cache=$dir/cache
 home=/home/services/builder