wip: 重新整理 install cmd

internal/cmd/installcmd/prepare.go

@@ -9,22 +9,24 @@ func Prepare() *cobra.Command {
 
 	var (
 		workdir string
-		target  string
 	)
 
 	_cmd := &cobra.Command{
 		Use:   "prepare",
 		Short: "Prepare for installation",
 		Long:  "Prepare for installation",
+		PreRunE: func(cmd *cobra.Command, args []string) error {
+			i := installer.NewInstaller(workdir)
+			return i.CheckOK(cmd.Context())
+		},
 		RunE: func(cmd *cobra.Command, args []string) error {
-			_installer := installer.NewInstaller(workdir, target)
+			_installer := installer.NewInstaller(workdir)
 			_installer.Prepare(cmd.Context())
 			return nil
 		},
 	}
 
 	_cmd.Flags().StringVar(&workdir, "workdir", "/root/hs-installation", "Working directory")
-	_cmd.Flags().StringVar(&target, "target", "self", "Target")
 
 	return _cmd
 }