Update vendor

vendor/k8s.io/kube-aggregator/pkg/apis/apiregistration/helpers.go

@@ -0,0 +1,128 @@
+/*
+Copyright 2016 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 apiregistration
+
+import (
+	"sort"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/version"
+)
+
+// SortedByGroupAndVersion sorts APIServices into their different groups, and then sorts them based on their versions.
+// For example, the first element of the first array contains the APIService with the highest version number, in the
+// group with the highest priority; while the last element of the last array contains the APIService with the lowest
+// version number, in the group with the lowest priority.
+func SortedByGroupAndVersion(servers []*APIService) [][]*APIService {
+	serversByGroupPriorityMinimum := ByGroupPriorityMinimum(servers)
+	sort.Sort(serversByGroupPriorityMinimum)
+
+	ret := [][]*APIService{}
+	for _, curr := range serversByGroupPriorityMinimum {
+		// check to see if we already have an entry for this group
+		existingIndex := -1
+		for j, groupInReturn := range ret {
+			if groupInReturn[0].Spec.Group == curr.Spec.Group {
+				existingIndex = j
+				break
+			}
+		}
+
+		if existingIndex >= 0 {
+			ret[existingIndex] = append(ret[existingIndex], curr)
+			sort.Sort(ByVersionPriority(ret[existingIndex]))
+			continue
+		}
+
+		ret = append(ret, []*APIService{curr})
+	}
+
+	return ret
+}
+
+// ByGroupPriorityMinimum sorts with the highest group number first, then by name.
+// This is not a simple reverse, because we want the name sorting to be alpha, not
+// reverse alpha.
+type ByGroupPriorityMinimum []*APIService
+
+func (s ByGroupPriorityMinimum) Len() int      { return len(s) }
+func (s ByGroupPriorityMinimum) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+func (s ByGroupPriorityMinimum) Less(i, j int) bool {
+	if s[i].Spec.GroupPriorityMinimum != s[j].Spec.GroupPriorityMinimum {
+		return s[i].Spec.GroupPriorityMinimum > s[j].Spec.GroupPriorityMinimum
+	}
+	return s[i].Name < s[j].Name
+}
+
+// ByVersionPriority sorts with the highest version number first, then by name.
+// This is not a simple reverse, because we want the name sorting to be alpha, not
+// reverse alpha.
+type ByVersionPriority []*APIService
+
+func (s ByVersionPriority) Len() int      { return len(s) }
+func (s ByVersionPriority) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+func (s ByVersionPriority) Less(i, j int) bool {
+	if s[i].Spec.VersionPriority != s[j].Spec.VersionPriority {
+		return s[i].Spec.VersionPriority > s[j].Spec.VersionPriority
+	}
+	return version.CompareKubeAwareVersionStrings(s[i].Spec.Version, s[j].Spec.Version) > 0
+}
+
+// NewLocalAvailableAPIServiceCondition returns a condition for an available local APIService.
+func NewLocalAvailableAPIServiceCondition() APIServiceCondition {
+	return APIServiceCondition{
+		Type:               Available,
+		Status:             ConditionTrue,
+		LastTransitionTime: metav1.Now(),
+		Reason:             "Local",
+		Message:            "Local APIServices are always available",
+	}
+}
+
+// GetAPIServiceConditionByType gets an *APIServiceCondition by APIServiceConditionType if present
+func GetAPIServiceConditionByType(apiService *APIService, conditionType APIServiceConditionType) *APIServiceCondition {
+	for i := range apiService.Status.Conditions {
+		if apiService.Status.Conditions[i].Type == conditionType {
+			return &apiService.Status.Conditions[i]
+		}
+	}
+	return nil
+}
+
+// SetAPIServiceCondition sets the status condition.  It either overwrites the existing one or
+// creates a new one
+func SetAPIServiceCondition(apiService *APIService, newCondition APIServiceCondition) {
+	existingCondition := GetAPIServiceConditionByType(apiService, newCondition.Type)
+	if existingCondition == nil {
+		apiService.Status.Conditions = append(apiService.Status.Conditions, newCondition)
+		return
+	}
+
+	if existingCondition.Status != newCondition.Status {
+		existingCondition.Status = newCondition.Status
+		existingCondition.LastTransitionTime = newCondition.LastTransitionTime
+	}
+
+	existingCondition.Reason = newCondition.Reason
+	existingCondition.Message = newCondition.Message
+}
+
+// IsAPIServiceConditionTrue indicates if the condition is present and strictly true
+func IsAPIServiceConditionTrue(apiService *APIService, conditionType APIServiceConditionType) bool {
+	condition := GetAPIServiceConditionByType(apiService, conditionType)
+	return condition != nil && condition.Status == ConditionTrue
+}