monitoring dashboard dependency vendor

Signed-off-by: junotx <junotx@126.com>

vendor/sigs.k8s.io/kustomize/pkg/transformers/config/fieldspec.go

@@ -0,0 +1,139 @@
+/*
+Copyright 2018 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 config
+
+import (
+	"fmt"
+	"strings"
+
+	"sigs.k8s.io/kustomize/pkg/gvk"
+)
+
+// FieldSpec completely specifies a kustomizable field in
+// an unstructured representation of a k8s API object.
+// It helps define the operands of transformations.
+//
+// For example, a directive to add a common label to objects
+// will need to know that a 'Deployment' object (in API group
+// 'apps', any version) can have labels at field path
+// 'spec/template/metadata/labels', and further that it is OK
+// (or not OK) to add that field path to the object if the
+// field path doesn't exist already.
+//
+// This would look like
+// {
+//   group: apps
+//   kind: Deployment
+//   path: spec/template/metadata/labels
+//   create: true
+// }
+type FieldSpec struct {
+	gvk.Gvk            `json:",inline,omitempty" yaml:",inline,omitempty"`
+	Path               string `json:"path,omitempty" yaml:"path,omitempty"`
+	CreateIfNotPresent bool   `json:"create,omitempty" yaml:"create,omitempty"`
+}
+
+const (
+	escapedForwardSlash  = "\\/"
+	tempSlashReplacement = "???"
+)
+
+func (fs FieldSpec) String() string {
+	return fmt.Sprintf(
+		"%s:%v:%s", fs.Gvk.String(), fs.CreateIfNotPresent, fs.Path)
+}
+
+// If true, the primary key is the same, but other fields might not be.
+func (fs FieldSpec) effectivelyEquals(other FieldSpec) bool {
+	return fs.IsSelected(&other.Gvk) && fs.Path == other.Path
+}
+
+// PathSlice converts the path string to a slice of strings,
+// separated by a '/'. Forward slash can be contained in a
+// fieldname. such as ingress.kubernetes.io/auth-secret in
+// Ingress annotations. To deal with this special case, the
+// path to this field should be formatted as
+//
+//   metadata/annotations/ingress.kubernetes.io\/auth-secret
+//
+// Then PathSlice will return
+//
+//   []string{
+//      "metadata",
+//      "annotations",
+//      "ingress.auth-secretkubernetes.io/auth-secret"
+//   }
+func (fs FieldSpec) PathSlice() []string {
+	if !strings.Contains(fs.Path, escapedForwardSlash) {
+		return strings.Split(fs.Path, "/")
+	}
+	s := strings.Replace(fs.Path, escapedForwardSlash, tempSlashReplacement, -1)
+	paths := strings.Split(s, "/")
+	var result []string
+	for _, path := range paths {
+		result = append(result, strings.Replace(path, tempSlashReplacement, "/", -1))
+	}
+	return result
+}
+
+type fsSlice []FieldSpec
+
+func (s fsSlice) Len() int      { return len(s) }
+func (s fsSlice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+func (s fsSlice) Less(i, j int) bool {
+	return s[i].Gvk.IsLessThan(s[j].Gvk)
+}
+
+// mergeAll merges the argument into this, returning the result.
+// Items already present are ignored.
+// Items that conflict (primary key matches, but remain data differs)
+// result in an error.
+func (s fsSlice) mergeAll(incoming fsSlice) (result fsSlice, err error) {
+	result = s
+	for _, x := range incoming {
+		result, err = result.mergeOne(x)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return result, nil
+}
+
+// mergeOne merges the argument into this, returning the result.
+// If the item's primary key is already present, and there are no
+// conflicts, it is ignored (we don't want duplicates).
+// If there is a conflict, the merge fails.
+func (s fsSlice) mergeOne(x FieldSpec) (fsSlice, error) {
+	i := s.index(x)
+	if i > -1 {
+		// It's already there.
+		if s[i].CreateIfNotPresent != x.CreateIfNotPresent {
+			return nil, fmt.Errorf("conflicting fieldspecs")
+		}
+		return s, nil
+	}
+	return append(s, x), nil
+}
+
+func (s fsSlice) index(fs FieldSpec) int {
+	for i, x := range s {
+		if x.effectivelyEquals(fs) {
+			return i
+		}
+	}
+	return -1
+}