-# if the scenario is external, we need to wipe WORKSPACE to place releng-xci there since
-# the project where the scenario is coming from is cloned and the patch checked out to the
-# xci/scenarios/$DEPLOY_SCENARIO to be synched on clean VM
-# apart from that, we need releng-xci stuff in WORKSPACE for things to function correctly on Jenkins.
-# if the change is coming to releng-xci, we don't need to do anything since the patch is checked
-# out to the WORKSPACE anyways
-if [[ $GERRIT_PROJECT != "releng-xci" ]]; then
+# This function determines the impacted generic scenario by processing the
+# change and using diff to see what changed. If changed files belong to a scenario
+# its name gets recorded for deploying and testing the right scenario.
+#
+# Pattern to be searched in Changeset
+# releng-xci/scenarios/<scenario>/<impacted files>: <scenario>
+# releng-xci/xci/installer/osa/<impacted files>: os-nosdn-nofeature
+# releng-xci/xci/installer/kubespray/<impacted files>: k8-nosdn-nofeature
+# the rest: os-nosdn-nofeature
+function determine_generic_scenario() {
+ echo "Processing $GERRIT_PROJECT patchset $GERRIT_REFSPEC"
+
+ # get the changeset
+ cd $WORKSPACE
+ CHANGESET=$(git diff HEAD^..HEAD --name-only)
+ for CHANGED_FILE in $CHANGESET; do
+ case $CHANGED_FILE in
+ *k8-nosdn*|*kubespray*)
+ [[ ${DEPLOY_SCENARIO[@]} =~ "k8-nosdn-nofeature" ]] || DEPLOY_SCENARIO[${#DEPLOY_SCENARIO[@]}]='k8-nosdn-nofeature'
+ ;;
+ *os-odl*)
+ [[ ${DEPLOY_SCENARIO[@]} =~ "os-odl-nofeature" ]] || DEPLOY_SCENARIO[${#DEPLOY_SCENARIO[@]}]='os-odl-nofeature'
+ ;;
+ *os-nosdn*|*osa*)
+ [[ ${DEPLOY_SCENARIO[@]} =~ "os-nosdn-nofeature" ]] || DEPLOY_SCENARIO[${#DEPLOY_SCENARIO[@]}]='os-nosdn-nofeature'
+ ;;
+ *)
+ [[ ${DEPLOY_SCENARIO[@]} =~ "os-nosdn-nofeature" ]] || DEPLOY_SCENARIO[${#DEPLOY_SCENARIO[@]}]='os-nosdn-nofeature'
+ ;;
+ esac
+ done
+}
+
+# This function determines the impacted external scenario by processing the Gerrit
+# change and using diff to see what changed. If changed files belong to a scenario
+# its name gets recorded for deploying and testing the right scenario.
+#
+# Pattern
+# <project-repo>/scenarios/<scenario>/<impacted files>: <scenario>
+function determine_external_scenario() {
+ echo "Processing $GERRIT_PROJECT patchset $GERRIT_REFSPEC"
+
+ # remove the clone that is done via jenkins and place releng-xci there so the
+ # things continue functioning properly