func downloadObject(ptr *Pointer, obj *objectResource, mediafile string, cb CopyCallback) error {
reader, size, err := DownloadObject(obj)
if reader != nil {
defer reader.Close()
}
// TODO this can be unified with the same code in downloadFile
if err != nil {
return Errorf(err, "Error downloading %s", mediafile)
}
if ptr.Size == 0 {
ptr.Size = size
}
mediaFile, err := contentaddressable.NewFile(mediafile)
if err != nil {
return Errorf(err, "Error opening media file buffer.")
}
_, err = CopyWithCallback(mediaFile, reader, ptr.Size, cb)
if err == nil {
err = mediaFile.Accept()
}
mediaFile.Close()
if err != nil {
return Errorf(err, "Error buffering media file.")
}
return nil
}
func downloadFile(writer io.Writer, ptr *Pointer, workingfile, mediafile string, cb CopyCallback) error {
fmt.Fprintf(os.Stderr, "Downloading %s (%s)\n", workingfile, pb.FormatBytes(ptr.Size))
reader, size, err := Download(filepath.Base(mediafile))
if reader != nil {
defer reader.Close()
}
if err != nil {
return Errorf(err, "Error downloading %s.", mediafile)
}
if ptr.Size == 0 {
ptr.Size = size
}
mediaFile, err := contentaddressable.NewFile(mediafile)
if err != nil {
return Errorf(err, "Error opening media file buffer.")
}
_, err = CopyWithCallback(mediaFile, reader, ptr.Size, cb)
if err == nil {
err = mediaFile.Accept()
}
mediaFile.Close()
if err != nil {
return Errorf(err, "Error buffering media file.")
}
return readLocalFile(writer, ptr, mediafile, workingfile, nil)
}