Allow non-inclusion of setup task in junit report

The JUnit callback pushes every tasks in the report. Even the setup
tasks that - sometime - might clutter the report rather than being
useful, based on one needs.

This PR allows one to specify whether or not the setup tasks should be
part of the final report, defaulting to True to be backward compatible
to what is already in place today.

lib/ansible/plugins/callback/junit.py

@@ -45,6 +45,12 @@ DOCUMENTATION = '''
         description: Consider failed tasks as a junit test failure even if ignore_on_error is set
         env:
           - name: JUNIT_FAIL_ON_IGNORE
+      include_setup_tasks_in_report:
+        name: JUnit include setup tasks in report
+        default: True
+        description: Should the setup tasks be included in the final report
+        env:
+          - name: JUNIT_INCLUDE_SETUP_TASKS_IN_REPORT
     requirements:
       - whitelist in configuration
       - junit_xml (python lib)
@@ -96,6 +102,8 @@ class CallbackModule(CallbackBase):
                                      Default: False
         JUNIT_FAIL_ON_IGNORE (optional): Consider failed tasks as a junit test failure even if ignore_on_error is set
                                      Default: False
+        JUNIT_INCLUDE_SETUP_TASKS_IN_REPORT (optional): Should the setup tasks be included in the final report
+                                     Default: True
 
     Requires:
         junit_xml
@@ -114,6 +122,7 @@ class CallbackModule(CallbackBase):
         self._task_class = os.getenv('JUNIT_TASK_CLASS', 'False').lower()
         self._fail_on_change = os.getenv('JUNIT_FAIL_ON_CHANGE', 'False').lower()
         self._fail_on_ignore = os.getenv('JUNIT_FAIL_ON_IGNORE', 'False').lower()
+        self._include_setup_tasks_in_report = os.getenv('JUNIT_INCLUDE_SETUP_TASKS_IN_REPORT', 'True').lower()
         self._playbook_path = None
         self._playbook_name = None
         self._play_name = None
@@ -147,13 +156,14 @@ class CallbackModule(CallbackBase):
         play = self._play_name
         name = task.get_name().strip()
         path = task.get_path()
+        action = task.action
 
         if not task.no_log:
             args = ', '.join(('%s=%s' % a for a in task.args.items()))
             if args:
                 name += ' ' + args
 
-        self._task_data[uuid] = TaskData(uuid, name, path, play)
+        self._task_data[uuid] = TaskData(uuid, name, path, play, action)
 
     def _finish_task(self, status, result):
         """ record the results of a task for a single host """
@@ -236,6 +246,9 @@ class CallbackModule(CallbackBase):
         test_cases = []
 
         for task_uuid, task_data in self._task_data.items():
+            if task_data.action == 'setup' and self._include_setup_tasks_in_report == 'false':
+                continue
+
             for host_uuid, host_data in task_data.host_data.items():
                 test_cases.append(self._build_test_case(task_data, host_data))
 
@@ -290,7 +303,7 @@ class TaskData:
     Data about an individual task.
     """
 
-    def __init__(self, uuid, name, path, play):
+    def __init__(self, uuid, name, path, play, action):
         self.uuid = uuid
         self.name = name
         self.path = path
@@ -298,6 +311,7 @@ class TaskData:
         self.start = None
         self.host_data = OrderedDict()
         self.start = time.time()
+        self.action = action
 
     def add_host(self, host):
         if host.uuid in self.host_data: