// utils
package main

import (
	"io"
	"os"
	"os/user"
	"path"
)

func gethomedir() string {
	u, _ := user.Current()
	return u.HomeDir
}

func gethistfile() string {
	const fname = ".bash_history"
	return path.Join(gethomedir(), fname)
}

func mktmpfile() string {
	const fname = ".bash_history"
	return path.Join("/tmp", fname)
}

func CopyFile(src, dst string) (int64, error) {
	sf, err := os.Open(src)
	if err != nil {
		return 0, err
	}
	defer sf.Close()
	df, err := os.Create(dst)
	if err != nil {
		return 0, err
	}
	defer df.Close()
	return io.Copy(df, sf)
}