Tonis Tiigi 54e497dfba vendor: update buildkit to 10e6f94b
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2022-04-03 15:06:21 -07:00

33 lines
797 B
Go

package imageutil
import (
"encoding/base64"
"encoding/json"
binfotypes "github.com/moby/buildkit/util/buildinfo/types"
"github.com/pkg/errors"
)
// BuildInfo returns build info from image config.
func BuildInfo(dt []byte) (*binfotypes.BuildInfo, error) {
if len(dt) == 0 {
return nil, nil
}
var config binfotypes.ImageConfig
if err := json.Unmarshal(dt, &config); err != nil {
return nil, errors.Wrap(err, "failed to unmarshal image config")
}
if len(config.BuildInfo) == 0 {
return nil, nil
}
dtbi, err := base64.StdEncoding.DecodeString(config.BuildInfo)
if err != nil {
return nil, err
}
var bi binfotypes.BuildInfo
if err = json.Unmarshal(dtbi, &bi); err != nil {
return nil, errors.Wrap(err, "failed to decode buildinfo from image config")
}
return &bi, nil
}