package util

import (
	"bytes"
	"encoding/gob"
	"log"
	"os/exec"
	"strings"
)

func RootDir() string {
	cmdOut, err := exec.Command("git", "rev-parse", "--show-toplevel").Output()
	if err != nil {
		log.Fatalf("exec.Command: %s", err)
		return ""
	}

	rootDir := strings.TrimSpace(string(cmdOut))
	return rootDir
}

func GetBytes(key interface{}) ([]byte, error) {
	var buf bytes.Buffer
	enc := gob.NewEncoder(&buf)
	err := enc.Encode(key)
	if err != nil {
		return nil, err
	}
	return buf.Bytes(), nil
}