Revert "add kubeconfig types"

pkg/client/clientcmd/provided_flags.go

@@ -0,0 +1,100 @@
+/*
+Copyright 2014 Google Inc. All rights reserved.
+
+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 clientcmd
+
+import (
+	"fmt"
+	"strconv"
+
+	"github.com/spf13/pflag"
+)
+
+// FlagProvider adds a check for whether .Set was called on this flag variable
+type FlagProvider interface {
+	// Provided returns true iff .Set was called on this flag
+	Provided() bool
+	pflag.Value
+}
+
+// StringFlag implements FlagProvider
+type StringFlag struct {
+	Default     string
+	Value       string
+	WasProvided bool
+}
+
+// SetDefault sets a default value for a flag while keeping Provided() false
+func (flag *StringFlag) SetDefault(value string) {
+	flag.Value = value
+	flag.WasProvided = false
+}
+
+func (flag *StringFlag) Set(value string) error {
+	flag.Value = value
+	flag.WasProvided = true
+
+	return nil
+}
+
+func (flag *StringFlag) Type() string {
+	return "string"
+}
+
+func (flag *StringFlag) Provided() bool {
+	return flag.WasProvided
+}
+
+func (flag *StringFlag) String() string {
+	return flag.Value
+}
+
+// BoolFlag implements FlagProvider
+type BoolFlag struct {
+	Default     bool
+	Value       bool
+	WasProvided bool
+}
+
+// SetDefault sets a default value for a flag while keeping Provided() false
+func (flag *BoolFlag) SetDefault(value bool) {
+	flag.Value = value
+	flag.WasProvided = false
+}
+
+func (flag *BoolFlag) Set(value string) error {
+	boolValue, err := strconv.ParseBool(value)
+	if err != nil {
+		return err
+	}
+
+	flag.Value = boolValue
+	flag.WasProvided = true
+
+	return nil
+}
+
+func (flag *BoolFlag) Type() string {
+	return "bool"
+}
+
+func (flag *BoolFlag) Provided() bool {
+	return flag.WasProvided
+}
+
+func (flag *BoolFlag) String() string {
+	return fmt.Sprintf("%t", flag.Value)
+}