vendor files

vendor/k8s.io/kubernetes/pkg/kubectl/explain/explain.go

@@ -0,0 +1,68 @@
+/*
+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 explain
+
+import (
+	"io"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/kube-openapi/pkg/util/proto"
+)
+
+type fieldsPrinter interface {
+	PrintFields(proto.Schema) error
+}
+
+func splitDotNotation(model string) (string, []string) {
+	var fieldsPath []string
+
+	// ignore trailing period
+	model = strings.TrimSuffix(model, ".")
+
+	dotModel := strings.Split(model, ".")
+	if len(dotModel) >= 1 {
+		fieldsPath = dotModel[1:]
+	}
+	return dotModel[0], fieldsPath
+}
+
+// SplitAndParseResourceRequest separates the users input into a model and fields
+func SplitAndParseResourceRequest(inResource string, mapper meta.RESTMapper) (string, []string, error) {
+	inResource, fieldsPath := splitDotNotation(inResource)
+	inResource, _ = mapper.ResourceSingularizer(inResource)
+	return inResource, fieldsPath, nil
+}
+
+// PrintModelDescription prints the description of a specific model or dot path.
+// If recursive, all components nested within the fields of the schema will be
+// printed.
+func PrintModelDescription(fieldsPath []string, w io.Writer, schema proto.Schema, recursive bool) error {
+	fieldName := ""
+	if len(fieldsPath) != 0 {
+		fieldName = fieldsPath[len(fieldsPath)-1]
+	}
+
+	// Go down the fieldsPath to find what we're trying to explain
+	schema, err := LookupSchemaForField(schema, fieldsPath)
+	if err != nil {
+		return err
+	}
+	b := fieldsPrinterBuilder{Recursive: recursive}
+	f := &Formatter{Writer: w, Wrap: 80}
+	return PrintModel(fieldName, f, b, schema)
+}