prevent endless workflow_run trigger

services/actions/notifier_helper.go

@@ -263,6 +263,15 @@ func skipWorkflows(input *notifyInput, commit *git.Commit) bool {
 			}
 		}
 	}
+	if input.Event == webhook_module.HookEventWorkflowRun {
+		wrun, ok := input.Payload.(*api.WorkflowRunPayload)
+		if ok && wrun.WorkflowRun != nil && wrun.WorkflowRun.Event != "workflow_run" {
+			// skip workflow runs triggered by another workflow run
+			// TODO GitHub allows chaining up to 5 of them
+			log.Debug("repo %s: skipped workflow_run because of recursive event", input.Repo.RepoPath())
+			return true
+		}
+	}
 	return false
 }