monitoring dashboard dependency vendor

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

vendor/k8s.io/cli-runtime/pkg/genericclioptions/io_options.go

@@ -0,0 +1,57 @@
+/*
+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 genericclioptions
+
+import (
+	"bytes"
+	"io"
+	"io/ioutil"
+)
+
+// IOStreams provides the standard names for iostreams.  This is useful for embedding and for unit testing.
+// Inconsistent and different names make it hard to read and review code
+type IOStreams struct {
+	// In think, os.Stdin
+	In io.Reader
+	// Out think, os.Stdout
+	Out io.Writer
+	// ErrOut think, os.Stderr
+	ErrOut io.Writer
+}
+
+// NewTestIOStreams returns a valid IOStreams and in, out, errout buffers for unit tests
+func NewTestIOStreams() (IOStreams, *bytes.Buffer, *bytes.Buffer, *bytes.Buffer) {
+	in := &bytes.Buffer{}
+	out := &bytes.Buffer{}
+	errOut := &bytes.Buffer{}
+
+	return IOStreams{
+		In:     in,
+		Out:    out,
+		ErrOut: errOut,
+	}, in, out, errOut
+}
+
+// NewTestIOStreamsDiscard returns a valid IOStreams that just discards
+func NewTestIOStreamsDiscard() IOStreams {
+	in := &bytes.Buffer{}
+	return IOStreams{
+		In:     in,
+		Out:    ioutil.Discard,
+		ErrOut: ioutil.Discard,
+	}
+}