metabase: export PutMetadataForObject

This functionality will be shared for some time meta-service feature is being
developed. Refs #3139.

Signed-off-by: Pavel Karpy <[email protected]>

Author: carpawell

pkg/local_object_storage/metabase/metadata.go

@@ -49,7 +49,10 @@ func invalidMetaBucketKeyErr(key []byte, cause error) error {
 	return fmt.Errorf("invalid meta bucket key (prefix 0x%X): %w", key[0], cause)
 }
 
-func putMetadataForObject(tx *bbolt.Tx, hdr object.Object, hasParent, phy bool) error {
+// PutMetadataForObject fills object meta-data indexes using bbolt transaction.
+// Transaction must be writable. Additional bucket for container's meta-data
+// may be created using {255, CID...} form as a key.
+func PutMetadataForObject(tx *bbolt.Tx, hdr object.Object, hasParent, phy bool) error {
 	owner := hdr.Owner()
 	if owner.IsZero() {
 		return fmt.Errorf("invalid owner: %w", user.ErrZeroID)

pkg/local_object_storage/metabase/version.go

@@ -138,11 +138,11 @@ func migrateFrom3Version(_ *DB, tx *bbolt.Tx) error {
 			}
 			par := hdr.Parent()
 			hasParent := par != nil
-			if err := putMetadataForObject(tx, hdr, hasParent, true); err != nil {
+			if err := PutMetadataForObject(tx, hdr, hasParent, true); err != nil {
 				return fmt.Errorf("put metadata for object %s: %w", id, err)
 			}
 			if hasParent && !par.GetID().IsZero() { // skip the first object without useful info similar to DB.put
-				if err := putMetadataForObject(tx, *par, false, false); err != nil {
+				if err := PutMetadataForObject(tx, *par, false, false); err != nil {
 					return fmt.Errorf("put metadata for parent of object %s: %w", id, err)
 				}
 			}