52 lines
971 B
Go
52 lines
971 B
Go
|
package testutil
|
||
|
|
|
||
|
|
import (
|
||
|
|
"archive/tar"
|
||
|
|
"bytes"
|
||
|
|
"compress/gzip"
|
||
|
|
"io"
|
||
|
|
"io/ioutil"
|
||
|
|
|
||
|
|
"github.com/pkg/errors"
|
||
|
|
)
|
||
|
|
|
||
|
|
type TarItem struct {
|
||
|
|
Header *tar.Header
|
||
|
|
Data []byte
|
||
|
|
}
|
||
|
|
|
||
|
|
func ReadTarToMap(dt []byte, compressed bool) (map[string]*TarItem, error) {
|
||
|
|
m := map[string]*TarItem{}
|
||
|
|
var r io.Reader = bytes.NewBuffer(dt)
|
||
|
|
if compressed {
|
||
|
|
gz, err := gzip.NewReader(r)
|
||
|
|
if err != nil {
|
||
|
|
return nil, errors.Wrapf(err, "error creating gzip reader")
|
||
|
|
}
|
||
|
|
defer gz.Close()
|
||
|
|
r = gz
|
||
|
|
}
|
||
|
|
tr := tar.NewReader(r)
|
||
|
|
for {
|
||
|
|
h, err := tr.Next()
|
||
|
|
if err != nil {
|
||
|
|
if err == io.EOF {
|
||
|
|
return m, nil
|
||
|
|
}
|
||
|
|
return nil, errors.Wrap(err, "error reading tar")
|
||
|
|
}
|
||
|
|
if _, ok := m[h.Name]; ok {
|
||
|
|
return nil, errors.Errorf("duplicate entries for %s", h.Name)
|
||
|
|
}
|
||
|
|
|
||
|
|
var dt []byte
|
||
|
|
if h.Typeflag == tar.TypeReg {
|
||
|
|
dt, err = ioutil.ReadAll(tr)
|
||
|
|
if err != nil {
|
||
|
|
return nil, errors.Wrapf(err, "error reading file")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
m[h.Name] = &TarItem{Header: h, Data: dt}
|
||
|
|
}
|
||
|
|
}
|