fix(api): workflow import link nodes to existing joins (#5069)

Author: richardlt

sdk/exportentities/v1/workflow.go

@@ -479,8 +479,12 @@ func (e *NodeEntry) processNodeAncestors(name string, w *sdk.Workflow) (bool, er
 	var join *sdk.Node
 	for i := range w.WorkflowData.Joins {
 		j := &w.WorkflowData.Joins[i]
-		var joinFound = true
 
+		if len(e.DependsOn) != len(j.JoinContext) {
+			continue
+		}
+
+		var joinFound = true
 		for _, ref := range j.JoinContext {
 			var refFound bool
 			for _, a := range e.DependsOn {

sdk/exportentities/v2/workflow.go

@@ -370,9 +370,9 @@ func (w Workflow) GetWorkflow() (*sdk.Workflow, error) {
 		wf.HistoryLength = sdk.DefaultHistoryLength
 	}
 
-	rand.Seed(time.Now().Unix())
+	r := rand.New(rand.NewSource(time.Now().Unix()))
 	var attempt int
-	fakeID := rand.Int63n(5000)
+	fakeID := r.Int63n(5000)
 	// attempt is there to avoid infinite loop, but it should not happened becase we check validity and dependencies earlier
 	for len(w.Workflow) != 0 && attempt < 10000 {
 		for name, entry := range w.Workflow {
@@ -503,8 +503,9 @@ func (e *NodeEntry) processNodeAncestors(name string, w *sdk.Workflow) (bool, er
 		ancestor := w.WorkflowData.NodeByName(a)
 		if ancestor == nil {
 			ancestorsExist = false
+		} else {
+			ancestors = append(ancestors, ancestor)
 		}
-		ancestors = append(ancestors, ancestor)
 	} else {
 		for _, a := range e.DependsOn {
 			//Looking for the ancestor
@@ -546,8 +547,12 @@ func (e *NodeEntry) processNodeAncestors(name string, w *sdk.Workflow) (bool, er
 	var join *sdk.Node
 	for i := range w.WorkflowData.Joins {
 		j := &w.WorkflowData.Joins[i]
-		var joinFound = true
 
+		if len(e.DependsOn) != len(j.JoinContext) {
+			continue
+		}
+
+		var joinFound = true
 		for _, ref := range j.JoinContext {
 			var refFound bool
 			for _, a := range e.DependsOn {

sdk/exportentities/v2/workflow_test.go

@@ -988,6 +988,58 @@ workflow:
     - success
     pipeline: env
     one_at_a_time: true
+`,
+		},
+		{
+			name: "Workflow no declared joins",
+			yaml: `name: nojoins
+version: v2.0
+workflow:
+  p1:
+    pipeline: env
+  p5:
+    depends_on:
+    - p21
+    - p31
+    - p41
+    pipeline: env
+  p6:
+    depends_on:
+    - p21
+    - p31
+    - p41
+    - p42
+    pipeline: env
+  p7:
+    depends_on:
+    - p21
+    - p31
+    - p42
+    pipeline: env
+  p21:
+    depends_on:
+    - p1
+    pipeline: env
+  p22:
+    depends_on:
+    - p1
+    pipeline: env
+  p31:
+    depends_on:
+    - p1
+    pipeline: env
+  p32:
+    depends_on:
+    - p1
+    pipeline: env
+  p41:
+    depends_on:
+    - p1
+    pipeline: env
+  p42:
+    depends_on:
+    - p1
+    pipeline: env
 `,
 		},
 	}