Fix scenario verification jobs

Change-Id: I9d99820cd1d3493fa24d23b2af061fb455afa280
diff --git a/jjb/cloud-infra/determine-scenario.sh b/jjb/cloud-infra/determine-scenario.sh
new file mode 100644
index 0000000..e9d7649
--- /dev/null
+++ b/jjb/cloud-infra/determine-scenario.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# ============LICENSE_START=======================================================
+#  Copyright (C) 2019 The Nordix Foundation. All rights reserved.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=========================================================
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+# this function processes commit message to determine the impacted scenario
+# using the input provided by the committer.
+#
+# installer type and scenario should be placed at the beginning of lines
+# separately and the format of the entry in commit message is as below
+#
+# installer-type: <installer type>
+# deploy-scenario: <scenario name>
+#
+# example is
+#
+# installer-type: kubespray
+# deploy-scenario: k8-calico-nofeature
+function override_installer_scenario() {
+  echo "Processing $GERRIT_PROJECT patchset $GERRIT_REFSPEC to determine the installer and the scenario"
+  cd $WORKSPACE
+  COMMIT_MESSAGE=$(git show -s --format=%B)
+
+  if [[ "$COMMIT_MESSAGE" =~ "deploy-scenario:" && "$COMMIT_MESSAGE" =~ "installer-type:" ]]; then
+    export INSTALLER_TYPE=$(echo "$COMMIT_MESSAGE" | grep '^installer-type:' | cut -d":" -f2 | sed 's/\s*//g')
+    export DEPLOY_SCENARIO=$(echo "$COMMIT_MESSAGE" | grep '^deploy-scenario:' | cut -d":" -f2 | sed 's/\s*//g')
+  else
+    echo "Installer type or deploy scenario is not specified."
+    echo "Falling back to programmatically determining them."
+    determine_scenario
+  fi
+}
+
+# this function will process the changed files to determine the impacted scenario
+# if it is no specified by the committer. only one scenario per change should be
+# touched.
+# TODO: this is not implented yet.
+function determine_scenario() {
+  echo "Processing $GERRIT_PROJECT patchset $GERRIT_REFSPEC"
+  cd $WORKSPACE
+  COMMIT_MESSAGE=$(git show -s --format=%B)
+  echo "Not implemented!"
+  exit 1
+}
+
+echo "Determining the impacted scenario and used installer"
+
+declare -a DEPLOY_SCENARIO
+declare -a INSTALLER_TYPE
+export PROJECT_GIT_URL=$GIT_BASE_HTTPS/$GERRIT_PROJECT
+
+override_installer_scenario
+
+echo "Writing change metadata to $WORKSPACE/change.properties"
+
+# vim: set ts=2 sw=2 expandtab: