mirror of
https://github.com/mudler/luet.git
synced 2025-06-25 23:12:13 +00:00
83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
// Copyright © 2019 Ettore Di Giacinto <mudler@gentoo.org>
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package helpers
|
|
|
|
import (
|
|
"io"
|
|
"os"
|
|
//"os/user"
|
|
//"strconv"
|
|
|
|
"github.com/docker/docker/pkg/archive"
|
|
//"github.com/docker/docker/pkg/idtools"
|
|
)
|
|
|
|
func Tar(src, dest string) error {
|
|
out, err := os.Create(dest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer out.Close()
|
|
|
|
fs, err := archive.Tar(src, archive.Uncompressed)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer fs.Close()
|
|
|
|
_, err = io.Copy(out, fs)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
err = out.Sync()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Untar just a wrapper around the docker functions
|
|
func Untar(src, dest string, sameOwner bool) error {
|
|
in, err := os.Open(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer in.Close()
|
|
|
|
opts := &archive.TarOptions{
|
|
// NOTE: NoLchown boolean is used for chmod of the symlink
|
|
// Probably it's needed set this always to true.
|
|
NoLchown: true,
|
|
ExcludePatterns: []string{"dev/"}, // prevent 'operation not permitted'
|
|
}
|
|
|
|
/*
|
|
u, err := user.Current()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// TODO: This seems not sufficient for untar with normal user.
|
|
if u.Uid != "0" {
|
|
uid, _ := strconv.Atoi(u.Uid)
|
|
gid, _ := strconv.Atoi(u.Gid)
|
|
opts.ChownOpts = &idtools.Identity{UID: uid, GID: gid}
|
|
}
|
|
*/
|
|
|
|
return archive.Untar(in, dest, opts)
|
|
}
|