// Writes to w, a metainfo containing the file at name.
func CreateMetaInfo(name string, w io.Writer) {
builder := metainfo.Builder{}
builder.AddFile(name)
builder.AddAnnounceGroup([]string{"lol://cheezburger"})
builder.SetPieceLength(5)
batch, err := builder.Submit()
if err != nil {
panic(err)
}
errs, _ := batch.Start(w, 1)
<-errs
}
