refactor cmd/config to internal

cmd/config/configcobra/example_test.go

@@ -0,0 +1,25 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package configcobra_test
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+	"sigs.k8s.io/kustomize/cmd/config/configcobra"
+	"sigs.k8s.io/kustomize/kyaml/commandutil"
+)
+
+// ExampleNewConfigCommand demonstrates how to embed the config command as a command inside
+// another group.
+func ExampleNewConfigCommand() {
+	// enable the config commands
+	os.Setenv(commandutil.EnableAlphaCommmandsEnvName, "true")
+	var root = &cobra.Command{
+		Use:   "my-cmd",
+		Short: "My command.",
+		Long:  `My command.`,
+	}
+	root.AddCommand(configcobra.NewConfigCommand("my-cmd"))
+}