Fix resolving links in sharded directories on gateway

License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>

path/resolver/resolver.go

@@ -69,19 +69,25 @@ func (r *Resolver) ResolveToLastNode(ctx context.Context, fpath path.Path) (ipld
 	}
 
 	for len(p) > 0 {
-		val, rest, err := nd.Resolve(p)
+		lnk, rest, err := r.ResolveOnce(ctx, r.DAG, nd, p)
 		if err != nil {
 			return nil, nil, err
 		}
 
-		switch val := val.(type) {
-		case *ipld.Link:
-			next, err := val.GetNode(ctx, r.DAG)
+		if lnk != nil {
+			next, err := lnk.GetNode(ctx, r.DAG)
 			if err != nil {
 				return nil, nil, err
 			}
 			nd = next
 			p = rest
+			continue
+		}
+
+		val, rest, err := nd.Resolve(p)
+		switch val.(type) {
+		case *ipld.Link:
+			return nil, nil, errors.New("inconsistent ResolveOnce / nd.Resolve")
 		default:
 			return nd, p, nil
 		}