Merge pull request kubernetes#85135 from wojtek-t/delete_unnecessary_conversions_1

Eliminate couple unnecessary conversions

Author: k8s-ci-robot

pkg/apis/core/v1/conversion_test.go

@@ -338,13 +338,7 @@ func roundTripRS(t *testing.T, rs *apps.ReplicaSet) *apps.ReplicaSet {
 		t.Errorf("%v\nData: %s\nSource: %#v", err, string(data), rs)
 		return nil
 	}
-	obj3 := &apps.ReplicaSet{}
-	err = legacyscheme.Scheme.Convert(obj2, obj3, nil)
-	if err != nil {
-		t.Errorf("%v\nSource: %#v", err, obj2)
-		return nil
-	}
-	return obj3
+	return obj2.(*apps.ReplicaSet)
 }
 
 func Test_core_PodStatus_to_v1_PodStatus(t *testing.T) {

pkg/kubelet/config/file_linux_test.go

@@ -33,7 +33,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/wait"
-	"k8s.io/kubernetes/pkg/api/legacyscheme"
 	"k8s.io/kubernetes/pkg/api/testapi"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	k8s_api_v1 "k8s.io/kubernetes/pkg/apis/core/v1"
@@ -200,12 +199,7 @@ func getTestCases(hostname types.NodeName) []*testCase {
 }
 
 func (tc *testCase) writeToFile(dir, name string, t *testing.T) string {
-	var versionedPod runtime.Object
-	err := legacyscheme.Scheme.Convert(&tc.pod, &versionedPod, nil)
-	if err != nil {
-		t.Fatalf("%s: error in versioning the pod: %v", tc.desc, err)
-	}
-	fileContents, err := runtime.Encode(testapi.Default.Codec(), versionedPod)
+	fileContents, err := runtime.Encode(testapi.Default.Codec(), tc.pod)
 	if err != nil {
 		t.Fatalf("%s: error in encoding the pod: %v", tc.desc, err)
 	}

pkg/kubelet/config/http_test.go

@@ -29,7 +29,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
 	utiltesting "k8s.io/client-go/util/testing"
-	"k8s.io/kubernetes/pkg/api/legacyscheme"
 	"k8s.io/kubernetes/pkg/api/testapi"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	k8s_api_v1 "k8s.io/kubernetes/pkg/apis/core/v1"
@@ -293,12 +292,7 @@ func TestExtractPodsFromHTTP(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		var versionedPods runtime.Object
-		err := legacyscheme.Scheme.Convert(&testCase.pods, &versionedPods, nil)
-		if err != nil {
-			t.Fatalf("%s: error in versioning the pods: %s", testCase.desc, err)
-		}
-		data, err := runtime.Encode(testapi.Default.Codec(), versionedPods)
+		data, err := runtime.Encode(testapi.Default.Codec(), testCase.pods)
 		if err != nil {
 			t.Fatalf("%s: error in encoding the pod: %v", testCase.desc, err)
 		}

staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go

@@ -2675,16 +2675,25 @@ func TestGetWithOptions(t *testing.T) {
 			t.Errorf("%s: unexpected response: %#v", test.name, resp)
 			continue
 		}
-		var itemOut genericapitesting.Simple
-		body, err := extractBody(resp, &itemOut)
+
+		var itemOut runtime.Object
+		if test.rootScoped {
+			itemOut = &genericapitesting.SimpleRoot{}
+		} else {
+			itemOut = &genericapitesting.Simple{}
+		}
+		body, err := extractBody(resp, itemOut)
 		if err != nil {
 			t.Errorf("%s: %v", test.name, err)
 			continue
 		}
-
-		if itemOut.Name != simpleStorage.item.Name {
-			t.Errorf("%s: Unexpected data: %#v, expected %#v (%s)", test.name, itemOut, simpleStorage.item, string(body))
-			continue
+		if metadata, err := meta.Accessor(itemOut); err == nil {
+			if metadata.GetName() != simpleStorage.item.Name {
+				t.Errorf("%s: Unexpected data: %#v, expected %#v (%s)", test.name, itemOut, simpleStorage.item, string(body))
+				continue
+			}
+		} else {
+			t.Errorf("%s: Couldn't get name from %#v: %v", test.name, itemOut, err)
 		}
 
 		var opts *genericapitesting.SimpleGetOptions

staging/src/k8s.io/kubectl/pkg/metricsutil/BUILD

@@ -17,7 +17,6 @@ go_library(
         "//staging/src/k8s.io/apimachinery/pkg/labels:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
         "//staging/src/k8s.io/cli-runtime/pkg/printers:go_default_library",
-        "//staging/src/k8s.io/client-go/kubernetes/scheme:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes/typed/core/v1:go_default_library",
         "//staging/src/k8s.io/metrics/pkg/apis/metrics:go_default_library",
         "//staging/src/k8s.io/metrics/pkg/apis/metrics/v1alpha1:go_default_library",

staging/src/k8s.io/kubectl/pkg/metricsutil/metrics_printer.go

@@ -24,7 +24,6 @@ import (
 	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/cli-runtime/pkg/printers"
-	"k8s.io/client-go/kubernetes/scheme"
 	metricsapi "k8s.io/metrics/pkg/apis/metrics"
 )
 
@@ -86,9 +85,7 @@ func NewNodeMetricsSorter(metrics []metricsapi.NodeMetrics, sortBy string) (*Nod
 	var usages = make([]v1.ResourceList, len(metrics))
 	if len(sortBy) > 0 {
 		for i, v := range metrics {
-			if err := scheme.Scheme.Convert(&v.Usage, &usages[i], nil); err != nil {
-				return nil, err
-			}
+			v.Usage.DeepCopyInto(&usages[i])
 		}
 	}
 
@@ -166,10 +163,7 @@ func (printer *TopCmdPrinter) PrintNodeMetrics(metrics []metricsapi.NodeMetrics,
 	}
 	var usage v1.ResourceList
 	for _, m := range metrics {
-		err := scheme.Scheme.Convert(&m.Usage, &usage, nil)
-		if err != nil {
-			return err
-		}
+		m.Usage.DeepCopyInto(&usage)
 		printMetricsLine(w, &ResourceMetricsInfo{
 			Name:      m.Name,
 			Metrics:   usage,
@@ -260,11 +254,9 @@ func getPodMetrics(m *metricsapi.PodMetrics, printContainersOnly bool) (v1.Resou
 		podMetrics[res], _ = resource.ParseQuantity("0")
 	}
 
+	var usage v1.ResourceList
 	for _, c := range m.Containers {
-		var usage v1.ResourceList
-		if err := scheme.Scheme.Convert(&c.Usage, &usage, nil); err != nil {
-			return nil, nil, err
-		}
+		c.Usage.DeepCopyInto(&usage)
 		containers[c.Name] = usage
 		if !printContainersOnly {
 			for _, res := range MeasuredResources {