added an option to reuse the devops workspace from the host inside the container. This makes testing and debugging devsops scripts possible without pushing the change to a repository

Signed-off-by: Jeremy Mordkoff <jeremy.mordkoff@riftio.com>
diff --git a/jenkins/host/start_build b/jenkins/host/start_build
index 06ce3a6..dd69799 100755
--- a/jenkins/host/start_build
+++ b/jenkins/host/start_build
@@ -36,13 +36,21 @@
 	wait_container_up $OSM_BUILD_CONTAINER
 	RE="fedora|fc[0-9]"
 	if [[ $OSM_BASE_IMAGE =~ $RE ]]; then
-		container_exec $OSM_BUILD_CONTAINER yum -y install git
+		container_exec $OSM_BUILD_CONTAINER yum -y install git tar
 	else
 		container_exec $OSM_BUILD_CONTAINER apt -y install git realpath
 	fi
-	container_exec $OSM_BUILD_CONTAINER git clone ${OSM_GIT_URL}/devops
+    if [ ${OSM_USE_LOCAL_DEVOPS:-false} ]; then
+        container_push_devops $OSM_BUILD_CONTAINER
+    else
+	    container_exec $OSM_BUILD_CONTAINER git clone ${OSM_GIT_URL}/devops
+    fi
 else
-	container_exec $OSM_BUILD_CONTAINER git -C devops pull
+    if [ ${OSM_USE_LOCAL_DEVOPS:-false} ]; then
+        container_push_devops $OSM_BUILD_CONTAINER
+    else
+	    container_exec $OSM_BUILD_CONTAINER git -C devops pull
+    fi
 fi
 
 container_exec $OSM_BUILD_CONTAINER ./devops/jenkins/$OSM_MDG/start_build