kubectl: remove dead factory code

pkg/kubectl/cmd/cmd_test.go

@@ -311,7 +311,6 @@ func NewAPIFactory() (*cmdutil.Factory, *testFactory, runtime.Codec) {
 		},
 	}
 	rf := cmdutil.NewFactory(nil)
-	f.PodSelectorForObject = rf.PodSelectorForObject
 	f.MapBasedSelectorForObject = rf.MapBasedSelectorForObject
 	f.PortsForObject = rf.PortsForObject
 	f.LabelsForObject = rf.LabelsForObject

pkg/kubectl/cmd/util/factory.go

@@ -100,8 +100,6 @@ type Factory struct {
 	HistoryViewer func(mapping *meta.RESTMapping) (kubectl.HistoryViewer, error)
 	// Returns a Rollbacker for changing the rollback version of the specified RESTMapping type or an error
 	Rollbacker func(mapping *meta.RESTMapping) (kubectl.Rollbacker, error)
-	// PodSelectorForObject returns the pod selector associated with the provided object
-	PodSelectorForObject func(object runtime.Object) (string, error)
 	// MapBasedSelectorForObject returns the map-based selector associated with the provided object. If a
 	// new set-based selector is provided, an error is returned if the selector cannot be converted to a
 	// map-based selector
@@ -364,41 +362,6 @@ func NewFactory(optionalClientConfig clientcmd.ClientConfig) *Factory {
 		Printer: func(mapping *meta.RESTMapping, noHeaders, withNamespace bool, wide bool, showAll bool, showLabels bool, absoluteTimestamps bool, columnLabels []string) (kubectl.ResourcePrinter, error) {
 			return kubectl.NewHumanReadablePrinter(noHeaders, withNamespace, wide, showAll, showLabels, absoluteTimestamps, columnLabels), nil
 		},
-		PodSelectorForObject: func(object runtime.Object) (string, error) {
-			// TODO: replace with a swagger schema based approach (identify pod selector via schema introspection)
-			switch t := object.(type) {
-			case *api.ReplicationController:
-				return kubectl.MakeLabels(t.Spec.Selector), nil
-			case *api.Pod:
-				if len(t.Labels) == 0 {
-					return "", fmt.Errorf("the pod has no labels and cannot be exposed")
-				}
-				return kubectl.MakeLabels(t.Labels), nil
-			case *api.Service:
-				if t.Spec.Selector == nil {
-					return "", fmt.Errorf("the service has no pod selector set")
-				}
-				return kubectl.MakeLabels(t.Spec.Selector), nil
-			case *extensions.Deployment:
-				selector, err := unversioned.LabelSelectorAsSelector(t.Spec.Selector)
-				if err != nil {
-					return "", fmt.Errorf("invalid label selector: %v", err)
-				}
-				return selector.String(), nil
-			case *extensions.ReplicaSet:
-				selector, err := unversioned.LabelSelectorAsSelector(t.Spec.Selector)
-				if err != nil {
-					return "", fmt.Errorf("failed to convert label selector to selector: %v", err)
-				}
-				return selector.String(), nil
-			default:
-				gvk, err := api.Scheme.ObjectKind(object)
-				if err != nil {
-					return "", err
-				}
-				return "", fmt.Errorf("cannot extract pod selector from %v", gvk)
-			}
-		},
 		MapBasedSelectorForObject: func(object runtime.Object) (string, error) {
 			// TODO: replace with a swagger schema based approach (identify pod selector via schema introspection)
 			switch t := object.(type) {

pkg/kubectl/cmd/util/factory_test.go

@@ -58,28 +58,6 @@ func TestNewFactoryNoFlagBindings(t *testing.T) {
 	}
 }
 
-func TestPodSelectorForObject(t *testing.T) {
-	f := NewFactory(nil)
-
-	svc := &api.Service{
-		ObjectMeta: api.ObjectMeta{Name: "baz", Namespace: "test"},
-		Spec: api.ServiceSpec{
-			Selector: map[string]string{
-				"foo": "bar",
-			},
-		},
-	}
-
-	expected := "foo=bar"
-	got, err := f.PodSelectorForObject(svc)
-	if err != nil {
-		t.Fatalf("Unexpected error: %v", err)
-	}
-	if expected != got {
-		t.Fatalf("Selector mismatch! Expected %s, got %s", expected, got)
-	}
-}
-
 func TestPortsForObject(t *testing.T) {
 	f := NewFactory(nil)