fix(api): don't warn if no previous run was found (#5203)

fsamin · web-flow · commit 2c5b0eb7444a · 2020-05-27T14:07:19.000+02:00
Signed-off-by: francois  samin &lt;francois.samin@corp.ovh.com&gt;
diff --git a/engine/api/workflow/dao_node_run.go b/engine/api/workflow/dao_node_run.go
@@ -692,11 +692,10 @@ func GetNodeRunBuildCommits(ctx context.Context, db gorp.SqlExecutor, store cach
 }
 
 // PreviousNodeRun find previous node run
-func PreviousNodeRun(db gorp.SqlExecutor, nr sdk.WorkflowNodeRun, nodeName string, workflowID int64) (sdk.WorkflowNodeRun, error) {
-	var nodeRun sdk.WorkflowNodeRun
+func PreviousNodeRun(db gorp.SqlExecutor, nr sdk.WorkflowNodeRun, nodeName string, workflowID int64) (*sdk.WorkflowNodeRun, error) {
 	// check the first run of a workflow, no need to check previous
 	if nr.Number == 1 && nr.SubNumber == 0 {
-		return nodeRun, nil
+		return nil, nil
 	}
 	query := fmt.Sprintf(`
 					SELECT %s FROM workflow_node_run
@@ -711,14 +710,16 @@ func PreviousNodeRun(db gorp.SqlExecutor, nr sdk.WorkflowNodeRun, nodeName strin
 
 	var rr = NodeRun{}
 	if err := db.SelectOne(&rr, query, workflowID, nodeName, nr.VCSBranch, nr.VCSTag, nr.Number, nr.ID); err != nil {
-		return nodeRun, sdk.WrapError(err, "Cannot load previous run on workflow %d node %s nr.VCSBranch:%s nr.VCSTag:%s nr.Number:%d nr.ID:%d ", workflowID, nodeName, nr.VCSBranch, nr.VCSTag, nr.Number, nr.ID)
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, sdk.WrapError(err, "Cannot load previous run on workflow %d node %s nr.VCSBranch:%s nr.VCSTag:%s nr.Number:%d nr.ID:%d ", workflowID, nodeName, nr.VCSBranch, nr.VCSTag, nr.Number, nr.ID)
 	}
 	pNodeRun, errF := fromDBNodeRun(rr, LoadRunOptions{})
 	if errF != nil {
-		return nodeRun, sdk.WrapError(errF, "PreviousNodeRun> Cannot read node run")
+		return nil, sdk.WrapError(errF, "PreviousNodeRun> Cannot read node run")
 	}
-	nodeRun = *pNodeRun
-	return nodeRun, nil
+	return pNodeRun, nil
 }
 
 //PreviousNodeRunVCSInfos returns a struct with BuildNumber, Commit Hash, Branch, Remote, Remote_url
diff --git a/engine/api/workflow_event.go b/engine/api/workflow_event.go
@@ -31,9 +31,9 @@ func WorkflowSendEvent(ctx context.Context, db gorp.SqlExecutor, store cache.Sto
 			continue
 		}
 
-		var previousNodeRun sdk.WorkflowNodeRun
+		var previousNodeRun *sdk.WorkflowNodeRun
 		if wnr.SubNumber > 0 {
-			previousNodeRun = wnr
+			previousNodeRun = &wnr
 		} else {
 			var errN error
 			previousNodeRun, errN = workflow.PreviousNodeRun(db, wnr, wnr.WorkflowNodeName, wr.WorkflowID)
@@ -55,7 +55,7 @@ func WorkflowSendEvent(ctx context.Context, db gorp.SqlExecutor, store cache.Sto
 			log.Warning(ctx, "WorkflowSendEvent> Unable to load workflow for event: %v", err)
 			continue
 		}
-		eventsNotif := notification.GetUserWorkflowEvents(ctx, db, store, wr.Workflow.ProjectID, wr.Workflow.ProjectKey, workDB.Name, wr.Workflow.Notifications, &previousNodeRun, *nr)
+		eventsNotif := notification.GetUserWorkflowEvents(ctx, db, store, wr.Workflow.ProjectID, wr.Workflow.ProjectKey, workDB.Name, wr.Workflow.Notifications, previousNodeRun, *nr)
 		event.PublishWorkflowNodeRun(ctx, *nr, wr.Workflow, eventsNotif)
 		e := &workflow.VCSEventMessenger{}
 		if err := e.SendVCSEvent(ctx, db, store, proj, *wr, wnr); err != nil {
