[WIP] Run PAPR on newly added test (#173)

* Run PAPR on newly added test

Currently PAPR will only run the improved sanity test when there is
a new pull request.  This commit will add a very simple script to
run any new test.

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

* fixup! Run PAPR on newly added test

.papr.yml

@@ -11,10 +11,10 @@ context: centos/7/atomic/smoketested
 
 packages:
   - ansible
+  - git
 
 tests:
-  - ansible-playbook -vi testnode, common/ans_ah_head-1_deploy.yml
-  - ansible-playbook -vi testnode, tests/improved-sanity-test/main.yml
+  - ./.test_director
 
 ---
 inherit: true

.test_director

@@ -0,0 +1,19 @@
+#!/bin/bash
+set -xeuo pipefail
+
+# check commit
+HEAD=${PAPR_COMMIT:-HEAD}
+NEW_TESTS=( $(git diff --name-only origin/master..$HEAD | grep 'tests/.*/main.yml' || true) )
+
+if [ ${#NEW_TESTS[@]} -eq 0 ]; then
+    ansible-playbook -vi testnode, common/ans_ah_head-1_deploy.yml
+    ansible-playbook -vi testnode, tests/improved-sanity-test/main.yml
+else
+    printf '%s\n' "${NEW_TESTS[@]}"
+    for NEW_TEST in "${NEW_TESTS[@]}"; do
+        # diff may contain deleted tests so only run tests that exist
+        if [ -f $NEW_TEST ]; then
+            ansible-playbook -vi testnode, $NEW_TEST
+        fi
+    done
+fi