Improve HOTRELOAD mounting logic

hack/tfw.sh

@@ -92,13 +92,14 @@ build_test_withfrontend()
 run_test()
 {
     cd "$TAO_PATH"
-    mount_baseimage="-v ${BASEIMAGE_PATH}/lib/tfw:/usr/local/lib/tfw"
-    mount_test="-v $TEST_PATH/solvable/src:/srv/.tfw"
-    mount_volumes=""
-    [ "${HOTRELOAD:-0}" == "1" ] && mount_volumes="${mount_baseimage} ${mount_test}"
+    if [ "${HOTRELOAD:-0}" == "1" ]; then
+        [ -d "$BASEIMAGE_PATH" ] && mount_baseimage="-v ${BASEIMAGE_PATH}/lib/tfw:/usr/local/lib/tfw"
+        mount_test="-v ${TEST_PATH}/solvable/src:/srv/.tfw"
+        mount_volumes="${mount_baseimage:-} ${mount_test}"
+    fi
     docker run --rm                                          \
                -p $TEST_PORT:$TEST_PORT                      \
-               ${mount_volumes}                              \
+               ${mount_volumes:-}                            \
                ${@:-}                                        \
                -e AVATAO_SECRET=$AVATAO_SECRET $IMAGE_NAME
 }