Allow install os-vif library used by Nova

In future Nova will use os-vif library for some communication with Neutron.
This patch add ability to install os-vif library that requires for run
tempest-jobs for new patches, that used os-vif.

Change-Id: I28e48afd3c740b1aa50c994d99f660f095e7deda
diff --git a/lib/nova b/lib/nova
index 3a5a47f..2b8fefa 100644
--- a/lib/nova
+++ b/lib/nova
@@ -34,6 +34,7 @@
 
 # Set up default directories
 GITDIR["python-novaclient"]=$DEST/python-novaclient
+GITDIR["os-vif"]=$DEST/os-vif
 NOVA_DIR=$DEST/nova
 
 # Nova virtual environment
@@ -728,6 +729,13 @@
 
 # install_nova() - Collect source and prepare
 function install_nova {
+
+    # Install os-vif
+    if use_library_from_git "os-vif"; then
+        git_clone_by_name "os-vif"
+        setup_dev_lib "os-vif"
+    fi
+
     if is_service_enabled n-cpu && [[ -r $NOVA_PLUGINS/hypervisor-$VIRT_DRIVER ]]; then
         install_nova_hypervisor
     fi
diff --git a/stackrc b/stackrc
index 74d507c..9bd132a 100644
--- a/stackrc
+++ b/stackrc
@@ -477,6 +477,10 @@
 GITREPO["os-brick"]=${OS_BRICK_REPO:-${GIT_BASE}/openstack/os-brick.git}
 GITBRANCH["os-brick"]=${OS_BRICK_BRANCH:-master}
 
+# os-vif library to communicate between Neutron to Nova
+GITREPO["os-vif"]=${OS_VIF_REPO:-${GIT_BASE}/openstack/os-vif.git}
+GITBRANCH["os-vif"]=${OS_VIF_BRANCH:-master}
+
 # ironic common lib
 GITREPO["ironic-lib"]=${IRONIC_LIB_REPO:-${GIT_BASE}/openstack/ironic-lib.git}
 GITBRANCH["ironic-lib"]=${IRONIC_LIB_BRANCH:-master}
diff --git a/tests/test_libs_from_pypi.sh b/tests/test_libs_from_pypi.sh
index ee11fd2..f01db6d 100755
--- a/tests/test_libs_from_pypi.sh
+++ b/tests/test_libs_from_pypi.sh
@@ -42,7 +42,7 @@
 ALL_LIBS+=" debtcollector os-brick automaton futurist oslo.service"
 ALL_LIBS+=" oslo.cache oslo.reports osprofiler"
 ALL_LIBS+=" keystoneauth ironic-lib neutron-lib oslo.privsep"
-ALL_LIBS+=" diskimage-builder"
+ALL_LIBS+=" diskimage-builder os-vif"
 
 # Generate the above list with
 # echo ${!GITREPO[@]}