Check in the vendor directory

Travis seems to be having issues pulling deps, so we'll have to check in
the vendor directory and prevent the makefile from trying to regenerate
it normally.

vendor/k8s.io/apiserver/pkg/storage/util.go

@@ -0,0 +1,115 @@
+/*
+Copyright 2015 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 storage
+
+import (
+	"fmt"
+	"strings"
+	"sync/atomic"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apimachinery/pkg/api/validation/path"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+type SimpleUpdateFunc func(runtime.Object) (runtime.Object, error)
+
+// SimpleUpdateFunc converts SimpleUpdateFunc into UpdateFunc
+func SimpleUpdate(fn SimpleUpdateFunc) UpdateFunc {
+	return func(input runtime.Object, _ ResponseMeta) (runtime.Object, *uint64, error) {
+		out, err := fn(input)
+		return out, nil, err
+	}
+}
+
+func EverythingFunc(runtime.Object) bool {
+	return true
+}
+
+func NoTriggerFunc() []MatchValue {
+	return nil
+}
+
+func NoTriggerPublisher(runtime.Object) []MatchValue {
+	return nil
+}
+
+func NamespaceKeyFunc(prefix string, obj runtime.Object) (string, error) {
+	meta, err := meta.Accessor(obj)
+	if err != nil {
+		return "", err
+	}
+	name := meta.GetName()
+	if msgs := path.IsValidPathSegmentName(name); len(msgs) != 0 {
+		return "", fmt.Errorf("invalid name: %v", msgs)
+	}
+	return prefix + "/" + meta.GetNamespace() + "/" + name, nil
+}
+
+func NoNamespaceKeyFunc(prefix string, obj runtime.Object) (string, error) {
+	meta, err := meta.Accessor(obj)
+	if err != nil {
+		return "", err
+	}
+	name := meta.GetName()
+	if msgs := path.IsValidPathSegmentName(name); len(msgs) != 0 {
+		return "", fmt.Errorf("invalid name: %v", msgs)
+	}
+	return prefix + "/" + name, nil
+}
+
+// hasPathPrefix returns true if the string matches pathPrefix exactly, or if is prefixed with pathPrefix at a path segment boundary
+func hasPathPrefix(s, pathPrefix string) bool {
+	// Short circuit if s doesn't contain the prefix at all
+	if !strings.HasPrefix(s, pathPrefix) {
+		return false
+	}
+
+	pathPrefixLength := len(pathPrefix)
+
+	if len(s) == pathPrefixLength {
+		// Exact match
+		return true
+	}
+	if strings.HasSuffix(pathPrefix, "/") {
+		// pathPrefix already ensured a path segment boundary
+		return true
+	}
+	if s[pathPrefixLength:pathPrefixLength+1] == "/" {
+		// The next character in s is a path segment boundary
+		// Check this instead of normalizing pathPrefix to avoid allocating on every call
+		return true
+	}
+	return false
+}
+
+// HighWaterMark is a thread-safe object for tracking the maximum value seen
+// for some quantity.
+type HighWaterMark int64
+
+// Update returns true if and only if 'current' is the highest value ever seen.
+func (hwm *HighWaterMark) Update(current int64) bool {
+	for {
+		old := atomic.LoadInt64((*int64)(hwm))
+		if current <= old {
+			return false
+		}
+		if atomic.CompareAndSwapInt64((*int64)(hwm), old, current) {
+			return true
+		}
+	}
+}