Update dependencies to K8s 1.8

vendor/k8s.io/client-go/tools/clientcmd/overrides.go

@@ -18,6 +18,7 @@ package clientcmd
 
 import (
 	"strconv"
+	"strings"
 
 	"github.com/spf13/pflag"
 
@@ -36,7 +37,7 @@ type ConfigOverrides struct {
 	Timeout         string
 }
 
-// ConfigOverrideFlags holds the flag names to be used for binding command line flags.  Notice that this structure tightly
+// ConfigOverrideFlags holds the flag names to be used for binding command line flags. Notice that this structure tightly
 // corresponds to ConfigOverrides
 type ConfigOverrideFlags struct {
 	AuthOverrideFlags    AuthOverrideFlags
@@ -101,6 +102,15 @@ func (f FlagInfo) BindStringFlag(flags *pflag.FlagSet, target *string) FlagInfo
 	return f
 }
 
+// BindTransformingStringFlag binds the flag based on the provided info.  If LongName == "", nothing is registered
+func (f FlagInfo) BindTransformingStringFlag(flags *pflag.FlagSet, target *string, transformer func(string) (string, error)) FlagInfo {
+	// you can't register a flag without a long name
+	if len(f.LongName) > 0 {
+		flags.VarP(newTransformingStringValue(f.Default, target, transformer), f.LongName, f.ShortName, f.Description)
+	}
+	return f
+}
+
 // BindStringSliceFlag binds the flag based on the provided info.  If LongName == "", nothing is registered
 func (f FlagInfo) BindStringArrayFlag(flags *pflag.FlagSet, target *[]string) FlagInfo {
 	// you can't register a flag without a long name
@@ -222,5 +232,16 @@ func BindClusterFlags(clusterInfo *clientcmdapi.Cluster, flags *pflag.FlagSet, f
 func BindContextFlags(contextInfo *clientcmdapi.Context, flags *pflag.FlagSet, flagNames ContextOverrideFlags) {
 	flagNames.ClusterName.BindStringFlag(flags, &contextInfo.Cluster)
 	flagNames.AuthInfoName.BindStringFlag(flags, &contextInfo.AuthInfo)
-	flagNames.Namespace.BindStringFlag(flags, &contextInfo.Namespace)
+	flagNames.Namespace.BindTransformingStringFlag(flags, &contextInfo.Namespace, RemoveNamespacesPrefix)
+}
+
+// RemoveNamespacesPrefix is a transformer that strips "ns/", "namespace/" and "namespaces/" prefixes case-insensitively
+func RemoveNamespacesPrefix(value string) (string, error) {
+	for _, prefix := range []string{"namespaces/", "namespace/", "ns/"} {
+		if len(value) > len(prefix) && strings.EqualFold(value[0:len(prefix)], prefix) {
+			value = value[len(prefix):]
+			break
+		}
+	}
+	return value, nil
 }