@@ -1771,6 +1771,9 @@ function enable_plugin {

     local name=$1

     local url=$2

     local branch=${3:-master}

+    if [[ ",${DEVSTACK_PLUGINS}," =~ ,${name}, ]]; then

+        die $LINENO "Plugin attempted to be enabled twice: ${name} ${url} ${branch}"

+    fi

     DEVSTACK_PLUGINS+=",$name"

     GITREPO[$name]=$url

     GITDIR[$name]=$DEST/$name