Bug 1710148 - Modify backfill action to properly handle vismet tasks. r=jmaher

This patch makes it possible to properly backfill vismet tasks. Backfilling a vismet task will now trigger a test task along with the vismet task so it doesn't rerun on the same data.

Differential Revision: https://phabricator.services.mozilla.com/D114645

taskcluster/taskgraph/actions/backfill.py

@@ -22,6 +22,8 @@ from .util import (
     get_decision_task_id,
     get_pushes_from_params_input,
     trigger_action,
+    get_tasks_with_downstream,
+    rename_browsertime_vismet_task,
 )
 
 logger = logging.getLogger(__name__)
@@ -260,6 +262,12 @@ def add_task_with_original_manifests(
     if label not in full_task_graph.tasks:
         label = new_label(label, full_task_graph.tasks)
 
+    to_run = [label]
+    if "browsertime" in label:
+        if "vismet" in label:
+            label = rename_browsertime_vismet_task(label)
+        to_run = get_tasks_with_downstream([label], full_task_graph, label_to_taskid)
+
     modifier = do_not_modify
     test_manifests = input.get("test_manifests")
     # If the original task has defined test paths
@@ -277,7 +285,7 @@ def add_task_with_original_manifests(
     for i in range(times):
         create_tasks(
             graph_config,
-            [label],
+            to_run,
             full_task_graph,
             label_to_taskid,
             parameters,