// GetVersion returns the given target's version from custom metadata
func GetVersion(client *tuf.Client, name string) (string, error) {
targets, err := client.Targets()
if err != nil {
return "", err
}
target, ok := targets[name]
if !ok {
return "", fmt.Errorf("missing %q in tuf targets", name)
}
if target.Custom == nil || len(*target.Custom) == 0 {
return "", errors.New("missing custom metadata in tuf target")
}
var data struct {
Version string
}
json.Unmarshal(*target.Custom, &data)
if data.Version == "" {
return "", errors.New("missing version in tuf target")
}
return data.Version, nil
}
