Refactor kustomize config command structure

- Create cfg, fn, live parent commands

cmd/config/configcobra/cmds.go

@@ -6,43 +6,12 @@
 package configcobra
 
 import (
-	"strings"
-
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/cmd/config/internal/commands"
 	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/api"
 	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/tutorials"
-	"sigs.k8s.io/kustomize/kyaml/commandutil"
 )
 
-var root = &cobra.Command{
-	Use:   "config",
-	Short: "[Alpha] Utilities for working with Resource Configuration.",
-	Long: `[Alpha] Utilities for working with Resource Configuration.
-
-Tutorials:
-
-  Run 'kustomize help config tutorial-TUTORIAL'
-
-	$ kustomize help config tutorials-command-basics
-
-Command Documentation:
-
-  Run 'kustomize help config CMD'
-
-	$ kustomize help config tree
-
-Advanced Documentation Topics:
-
-  Run 'kustomize help config docs-TOPIC'
-
-	$ kustomize help config docs-merge
-	$ kustomize help config docs-merge3
-	$ kustomize help config docs-fn
-	$ kustomize help config docs-io-annotations
-`,
-}
-
 // Export commands publicly for composition
 var (
 	Annotate           = commands.AnnotateCommand
@@ -52,10 +21,11 @@ var (
 	CreateSubstitution = commands.CreateSubstitutionCommand
 	Fmt                = commands.FmtCommand
 	Grep               = commands.GrepCommand
+	Init               = commands.InitCommand
 	ListSetters        = commands.ListSettersCommand
 	Merge              = commands.MergeCommand
 	Merge3             = commands.Merge3Command
-	RunFn              = commands.RunFnCommand
+	RunFn              = commands.RunCommand
 	Set                = commands.SetCommand
 	Sink               = commands.SinkCommand
 	Source             = commands.SourceCommand
@@ -67,51 +37,16 @@ var (
 	ExitOnError  = &commands.ExitOnError
 )
 
-// NewConfigCommand returns a new *cobra.Command for the config command group.  This may
-// be embedded into other go binaries as a way of packaging the "config" command as part
-// of another binary.
-//
-// name is substituted into the built-in documentation for each sub-command as the command
-// invocation prefix -- e.g. if the result is embedded in kustomize, then name should be
-// "kustomize" and the built-in docs will display "kustomize config" in the examples.
-//
-func NewConfigCommand(name string) *cobra.Command {
-	// config command is alpha
-	root.Version = "v0.0.0"
-
-	// Only populate the command if Alpha commands are enabled.
-	if !commandutil.GetAlphaEnabled() {
-		// return the command because other subcommands are added to it
-		root.Short = "[Alpha] To enable set KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true"
-		root.Long = "[Alpha] To enable set KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true"
-		root.Example = ""
-		return root
-	}
-
-	root.PersistentFlags().BoolVar(&commands.StackOnError, "stack-trace", false,
-		"print a stack-trace on failure")
-
-	name = strings.TrimSpace(name + " config")
+// AddCommands adds the cfg, fn and live commands to kustomize.
+func AddCommands(root *cobra.Command, name string) *cobra.Command {
 	commands.ExitOnError = true
-	root.AddCommand(commands.AnnotateCommand(name))
-	root.AddCommand(commands.GrepCommand(name))
-	root.AddCommand(commands.TreeCommand(name))
-	root.AddCommand(commands.CatCommand(name))
-	root.AddCommand(commands.FmtCommand(name))
-	root.AddCommand(commands.MergeCommand(name))
-	root.AddCommand(commands.Merge3Command(name))
-	root.AddCommand(commands.CountCommand(name))
-	root.AddCommand(commands.RunFnCommand(name))
-	root.AddCommand(commands.XArgsCommand())
-	root.AddCommand(commands.WrapCommand())
 
-	root.AddCommand(commands.InitCommand(name))
-	root.AddCommand(commands.SetCommand(name))
-	root.AddCommand(commands.ListSettersCommand(name))
-	root.AddCommand(commands.CreateSetterCommand(name))
-	root.AddCommand(commands.CreateSubstitutionCommand(name))
-	root.AddCommand(commands.SinkCommand(name))
-	root.AddCommand(commands.SourceCommand(name))
+	root.PersistentFlags().BoolVar(StackOnError, "stack-trace", false,
+		"print a stack-trace on error")
+
+	root.AddCommand(GetCfg(name))
+	root.AddCommand(GetFn(name))
+	root.AddCommand(GetLive(name))
 
 	root.AddCommand(&cobra.Command{
 		Use:   "docs-merge",