docker_compose_v2: add ignore_build_events option; ignore build events by default (#1011)

* Add ignore_build_events option.

* Adjust docs and tests.

* Switch default to true.

* Remove unnecessary parts from tests.

plugins/module_utils/compose_v2.py

@@ -57,6 +57,8 @@ DOCKER_STATUS_DONE = frozenset((
     'Recreated',
     # Extras for pull events
     'Pulled',
+    # Extras for built events
+    'Built',
 ))
 DOCKER_STATUS_WORKING = frozenset((
     'Creating',
@@ -76,6 +78,10 @@ DOCKER_STATUS_PULL = frozenset((
     'Pulled',
     'Pulling',
 ))
+DOCKER_STATUS_BUILD = frozenset((
+    'Built',
+    'Building',
+))
 DOCKER_STATUS_ERROR = frozenset((
     'Error',
 ))
@@ -542,11 +548,13 @@ def parse_events(stderr, dry_run=False, warn_function=None, nonzero_rc=False):
     return events
 
 
-def has_changes(events, ignore_service_pull_events=False):
+def has_changes(events, ignore_service_pull_events=False, ignore_build_events=False):
     for event in events:
         if event.status in DOCKER_STATUS_WORKING:
             if ignore_service_pull_events and event.status in DOCKER_STATUS_PULL:
                 continue
+            if ignore_build_events and event.status in DOCKER_STATUS_BUILD:
+                continue
             return True
         if event.resource_type == ResourceType.IMAGE_LAYER and event.status in DOCKER_PULL_PROGRESS_WORKING:
             return True
@@ -802,8 +810,20 @@ class BaseComposeManager(DockerBaseClass):
     def emit_warnings(self, events):
         emit_warnings(events, warn_function=self.client.warn)
 
-    def update_result(self, result, events, stdout, stderr, ignore_service_pull_events=False):
-        result['changed'] = result.get('changed', False) or has_changes(events, ignore_service_pull_events=ignore_service_pull_events)
+    def update_result(
+        self,
+        result,
+        events,
+        stdout,
+        stderr,
+        ignore_service_pull_events=False,
+        ignore_build_events=False,
+    ):
+        result['changed'] = result.get('changed', False) or has_changes(
+            events,
+            ignore_service_pull_events=ignore_service_pull_events,
+            ignore_build_events=ignore_build_events,
+        )
         result['actions'] = result.get('actions', []) + extract_actions(events)
         result['stdout'] = combine_text_output(result.get('stdout'), to_native(stdout))
         result['stderr'] = combine_text_output(result.get('stderr'), to_native(stderr))