git subrepo clone (merge) https://github.com/kubernetes-incubator/metrics-server.git metrics-server
subrepo:
subdir: "metrics-server"
merged: "92d8412"
upstream:
origin: "https://github.com/kubernetes-incubator/metrics-server.git"
branch: "master"
commit: "92d8412"
git-subrepo:
version: "0.4.0"
origin: "???"
commit: "???"
diff --git a/metrics-server/vendor/k8s.io/apimachinery/pkg/util/mergepatch/util.go b/metrics-server/vendor/k8s.io/apimachinery/pkg/util/mergepatch/util.go
new file mode 100644
index 0000000..9261290
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apimachinery/pkg/util/mergepatch/util.go
@@ -0,0 +1,133 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package mergepatch
+
+import (
+ "fmt"
+ "reflect"
+
+ "github.com/davecgh/go-spew/spew"
+ "github.com/ghodss/yaml"
+)
+
+// PreconditionFunc asserts that an incompatible change is not present within a patch.
+type PreconditionFunc func(interface{}) bool
+
+// RequireKeyUnchanged returns a precondition function that fails if the provided key
+// is present in the patch (indicating that its value has changed).
+func RequireKeyUnchanged(key string) PreconditionFunc {
+ return func(patch interface{}) bool {
+ patchMap, ok := patch.(map[string]interface{})
+ if !ok {
+ return true
+ }
+
+ // The presence of key means that its value has been changed, so the test fails.
+ _, ok = patchMap[key]
+ return !ok
+ }
+}
+
+// RequireMetadataKeyUnchanged creates a precondition function that fails
+// if the metadata.key is present in the patch (indicating its value
+// has changed).
+func RequireMetadataKeyUnchanged(key string) PreconditionFunc {
+ return func(patch interface{}) bool {
+ patchMap, ok := patch.(map[string]interface{})
+ if !ok {
+ return true
+ }
+ patchMap1, ok := patchMap["metadata"]
+ if !ok {
+ return true
+ }
+ patchMap2, ok := patchMap1.(map[string]interface{})
+ if !ok {
+ return true
+ }
+ _, ok = patchMap2[key]
+ return !ok
+ }
+}
+
+func ToYAMLOrError(v interface{}) string {
+ y, err := toYAML(v)
+ if err != nil {
+ return err.Error()
+ }
+
+ return y
+}
+
+func toYAML(v interface{}) (string, error) {
+ y, err := yaml.Marshal(v)
+ if err != nil {
+ return "", fmt.Errorf("yaml marshal failed:%v\n%v\n", err, spew.Sdump(v))
+ }
+
+ return string(y), nil
+}
+
+// HasConflicts returns true if the left and right JSON interface objects overlap with
+// different values in any key. All keys are required to be strings. Since patches of the
+// same Type have congruent keys, this is valid for multiple patch types. This method
+// supports JSON merge patch semantics.
+//
+// NOTE: Numbers with different types (e.g. int(0) vs int64(0)) will be detected as conflicts.
+// Make sure the unmarshaling of left and right are consistent (e.g. use the same library).
+func HasConflicts(left, right interface{}) (bool, error) {
+ switch typedLeft := left.(type) {
+ case map[string]interface{}:
+ switch typedRight := right.(type) {
+ case map[string]interface{}:
+ for key, leftValue := range typedLeft {
+ rightValue, ok := typedRight[key]
+ if !ok {
+ continue
+ }
+ if conflict, err := HasConflicts(leftValue, rightValue); err != nil || conflict {
+ return conflict, err
+ }
+ }
+
+ return false, nil
+ default:
+ return true, nil
+ }
+ case []interface{}:
+ switch typedRight := right.(type) {
+ case []interface{}:
+ if len(typedLeft) != len(typedRight) {
+ return true, nil
+ }
+
+ for i := range typedLeft {
+ if conflict, err := HasConflicts(typedLeft[i], typedRight[i]); err != nil || conflict {
+ return conflict, err
+ }
+ }
+
+ return false, nil
+ default:
+ return true, nil
+ }
+ case string, float64, bool, int, int64, nil:
+ return !reflect.DeepEqual(left, right), nil
+ default:
+ return true, fmt.Errorf("unknown type: %v", reflect.TypeOf(left))
+ }
+}