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ea2a51ce66
A compilespec with an image defined (and no seed) can now be compiled, and an artifact delta is provided at the end of the process.
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
// Copyright © 2019 Ettore Di Giacinto <mudler@gentoo.org>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, see <http://www.gnu.org/licenses/>.
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package helpers
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import (
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"io"
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"os"
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"github.com/docker/docker/pkg/archive"
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)
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func Tar(src, dest string) error {
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out, err := os.Create(dest)
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if err != nil {
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return err
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}
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defer out.Close()
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fs, err := archive.Tar(src, archive.Uncompressed)
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if err != nil {
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return err
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}
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defer fs.Close()
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_, err = io.Copy(out, fs)
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if err != nil {
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return err
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}
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err = out.Sync()
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if err != nil {
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return err
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}
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return err
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}
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// Untar just a wrapper around the docker functions
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func Untar(src, dest string, sameOwner bool) error {
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in, err := os.Open(src)
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if err != nil {
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return err
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}
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defer in.Close()
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return archive.Untar(in, dest, &archive.TarOptions{
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NoLchown: !sameOwner,
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ExcludePatterns: []string{"dev/"}, // prevent 'operation not permitted'
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})
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}
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