display weavetools version

weave

@@ -517,6 +517,16 @@ case "$COMMAND" in
         echo weave script $SCRIPT_VERSION
         ask_version $CONTAINER_NAME $IMAGE
         ask_version $DNS_CONTAINER_NAME $DNS_IMAGE
+        if ! TOOLS_IMAGE_ID=$(docker inspect --format='{{ .Id }}' $TOOLS_IMAGE 2>/dev/null) ; then
+            echo "Unable to find $TOOLS_IMAGE image." >&2
+        else
+            TOOLS_VERSION=$(docker images --no-trunc | grep $TOOLS_IMAGE_ID | grep -v latest | tr -s ' ' | cut -d ' ' -f 2 | tr "\n" ' ')
+            if [ -n "$TOOLS_VERSION" ] ; then
+                echo "weave tools $TOOLS_VERSION"
+            else
+                echo "weave tools (unreleased version)"
+            fi
+        fi
         ;;
     run)
         [ $# -gt 0 ] || usage