better functional test collection

straight up copied from glanceclient [1]

[1] https://github.com/openstack/python-glanceclient/blob/master/glanceclient/tests/functional/hooks/post_test_hook.sh

Change-Id: I9fad6d5c86831a2b872f3a61d4c7fa7383fc1266

Author: stevemar

post_test_hook.sh

@@ -6,15 +6,38 @@
 # For more information refer to:
 # http://docs.openstack.org/developer/python-openstackclient/
 
-set -xe
+function generate_testr_results {
+    if [ -f .testrepository/0 ]; then
+        sudo .tox/functional/bin/testr last --subunit > $WORKSPACE/testrepository.subunit
+        sudo mv $WORKSPACE/testrepository.subunit $BASE/logs/testrepository.subunit
+        sudo .tox/functional/bin/subunit2html $BASE/logs/testrepository.subunit $BASE/logs/testr_results.html
+        sudo gzip -9 $BASE/logs/testrepository.subunit
+        sudo gzip -9 $BASE/logs/testr_results.html
+        sudo chown jenkins:jenkins $BASE/logs/testrepository.subunit.gz $BASE/logs/testr_results.html.gz
+        sudo chmod a+r $BASE/logs/testrepository.subunit.gz $BASE/logs/testr_results.html.gz
+    fi
+}
 
 OPENSTACKCLIENT_DIR=$(cd $(dirname "$0") && pwd)
+sudo chown -R jenkins:stack $OPENSTACKCLIENT_DIR
 
+# Run tests
 echo "Running openstackclient functional test suite"
-sudo -H -u stack -i <<!
+set +e
+
+# Go to the openstackclient dir
+cd $OPENSTACKCLIENT_DIR
+
+# Source environment variables to kick things off
 source ~stack/devstack/openrc admin admin
 echo 'Running tests with:'
-env | grep OS_
-cd ${OPENSTACKCLIENT_DIR}
-tox -e functional
-!
+env | grep OS
+
+# Preserve env for OS_ credentials
+sudo -E -H -u jenkins tox -efunctional
+EXIT_CODE=$?
+set -e
+
+# Collect and parse result
+generate_testr_results
+exit $EXIT_CODE