// Read the metadata from the given dir
func getMetadata(ctx context.Context, ds *datastore.Helper, dir string) (map[string][]byte, error) {
res, err := ds.Ls(ctx, dir)
if err != nil {
return nil, err
}
if len(res.File) == 0 {
log.Infof("No meta found for %s", dir)
return nil, nil
}
meta := make(map[string][]byte)
for _, f := range res.File {
finfo, ok := f.(*types.FileInfo)
if !ok {
continue
}
p := path.Join(dir, finfo.Path)
log.Infof("Getting metadata %s", p)
rc, err := ds.Download(ctx, p)
if err != nil {
return nil, err
}
defer rc.Close()
buf, err := ioutil.ReadAll(rc)
if err != nil {
return nil, err
}
meta[finfo.Path] = buf
}
return meta, nil
}
