// encryption metadata.
func cleanMinioInternalMetadataKeys(metadata map[string]string) map[string]string {
	newMeta := make(map[string]string, len(metadata))
	for k, v := range metadata {
		if strings.HasPrefix(k, "X-Amz-Meta-X-Minio-Internal-") {
			newMeta[strings.TrimPrefix(k, "X-Amz-Meta-")] = v
		} else {
			newMeta[k] = v
		}
	}
	return newMeta
}

func FileWithLineNum() string {
	// the second caller usually from gorm internal, so set i start from 2
	for i := 2; i < 15; i++ {
		_, file, line, ok := runtime.Caller(i)
		if ok && (!strings.HasPrefix(file, gormSourceDir) || strings.HasSuffix(file, "_test.go")) &&
			!strings.HasSuffix(file, ".gen.go") {
			return file + ":" + strconv.FormatInt(int64(line), 10)
		}
	}

	return ""
}