package main

import (

"os"

"github.com/hyperblock/lvdiff/lvbackup"

"fmt"

"github.com/spf13/cobra"

)

func main() {

var rootCmd *cobra.Command

var flg bool

var vgname, baseLv, newLv string

rootCmd = &cobra.Command{

Use: "lvpatch <new_volume_name>",

Short: "create or update thin logcial volume with contents in standard input",

Run: func(cmd *cobra.Command, args []string) {

if len(vgname) == 0 || len(baseLv) == 0 {

fmt.Fprintln(os.Stderr, "volume group, thin pool and logical volume must be provided")

cmd.Usage()

os.Exit(-1)

}

if len(args) == 0 {

fmt.Fprintln(os.Stderr, "too few arguments.")

cmd.Usage()

os.Exit(-1)

}

newLv = args[0]

recver, err := lvbackup.NewStreamRecver(vgname, "", baseLv, flg, os.Stdin)

if err != nil {

fmt.Fprintln(os.Stderr, err)

os.Exit(2)

}

if err := recver.Run(newLv); err != nil {

fmt.Fprintln(os.Stderr, err)

os.Exit(3)

}

os.Exit(0)

},

}

rootCmd.Flags().StringVarP(&vgname, "lvgroup", "g", "", "volume group")

rootCmd.Flags().BoolVarP(&flg, "no-base-check", "", false, "patch volume without check blocks' hash.")

//rootCmd.Flags().StringVarP(&poolname, "pool", "p", "", "thin pool")

rootCmd.Flags().StringVarP(&baseLv, "lvbase", "l", "", "base logical volume")

if err := rootCmd.Execute(); err != nil {

os.Exit(-1)

}

os.Exit(0)

}