pkg/config: provide SaveData function

Parallel to LoadFile/LoadData.

1 files changed, 5 insertions, 1 deletions

diff --git a/pkg/config/config.go b/pkg/config/config.go
index c1a761e18..b80e03b3f 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -35,13 +35,17 @@ func LoadData(data []byte, cfg interface{}) error {
 }
 
 func SaveFile(filename string, cfg interface{}) error {
-	data, err := json.MarshalIndent(cfg, "", "\t")
+	data, err := SaveData(cfg)
 	if err != nil {
 		return err
 	}
 	return osutil.WriteFile(filename, data)
 }
 
+func SaveData(cfg interface{}) ([]byte, error) {
+	return json.MarshalIndent(cfg, "", "\t")
+}
+
 func checkUnknownFields(data []byte, typ reflect.Type) error {
 	if typ.Kind() != reflect.Ptr || typ.Elem().Kind() != reflect.Struct {
 		return fmt.Errorf("config type is not pointer to struct")