return empty reader for 0 byte files

Signed-off-by: Jörn Friedrich Dreyer <[email protected]>
butonic · Sep 19, 2023 · aeab6fc · aeab6fc
1 parent 76662f5
commit aeab6fc
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/pkg/storage/utils/decomposedfs/decomposedfs.go b/pkg/storage/utils/decomposedfs/decomposedfs.go
@@ -790,6 +790,9 @@ func (fs *Decomposedfs) Download(ctx context.Context, ref *provider.Reference) (
 	if currentEtag != expectedEtag {
 		return nil, errtypes.Aborted(fmt.Sprintf("file changed from etag %s to %s", expectedEtag, currentEtag))
 	}
+	if n.Blobsize == 0 {
+		return io.NopCloser(strings.NewReader("")), nil
+	}
 	reader, err := fs.blobstore.Download(n)
 	if err != nil {
 		return nil, errors.Wrap(err, "Decomposedfs: error downloading blob '"+n.BlobID+"' for node '"+n.ID+"'")