Tinkerbell.Sandbox/releases/cmd/getbinariesfromquay/tar/untar.go
Jacob Weinstock 6b841fee7c This simplifies the stand-up of a sandbox:
Only 2 main Vagrant calls are now needed (`vagrant up` and `vagrant up machine1`).
This PR only updates the Vagrant Virtualbox setup. The Vagrant Libvirt and Terraform
still need to be updated.

This uses docker-compose as the entry point for standing up the stack and makes the stand-up
of the sandbox more portal. Vagrant and Terraform are only responsible for standing up infrastructure
and then running docker-compose, not for running any glue scripts.

The docker-compose calls out to single-shot services to do all the glue required to get the fully
functional Tinkerbell stack up and running. All the single-shot services are idempotent.
This increases portability and the development iteration loop. This also simplifies the required
steps needed to get a fully functioning sandbox up and running.

This is intended to help people looking to get started by getting them to a provisioned
machine quicker and more easily.

Signed-off-by: Jacob Weinstock <jakobweinstock@gmail.com>
2021-08-09 08:04:06 -06:00

49 lines
838 B
Go

package tar
import (
"archive/tar"
"compress/gzip"
"io"
"os"
"path/filepath"
)
func Untar(dst string, r io.Reader) error {
gzr, err := gzip.NewReader(r)
if err != nil {
return err
}
defer gzr.Close()
tr := tar.NewReader(gzr)
for {
header, err := tr.Next()
switch {
case err == io.EOF:
return nil
case err != nil:
return err
case header == nil:
continue
}
target := filepath.Join(dst, header.Name)
switch header.Typeflag {
case tar.TypeDir:
if _, err := os.Stat(target); err != nil {
if err := os.MkdirAll(target, 0755); err != nil {
return err
}
}
case tar.TypeReg:
f, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR, os.FileMode(header.Mode))
if err != nil {
return err
}
if _, err := io.Copy(f, tr); err != nil {
return err
}
f.Close()
}
}
}