// WriteIndex writes the Index to the given io.Writer.
func WriteIndex(w io.Writer, idx *Index) error {
err := binary.Write(w, binary.LittleEndian, baiMagic)
if err != nil {
return err
}
err = binary.Write(w, binary.LittleEndian, int32(len(idx.idx.Refs)))
if err != nil {
return err
}
return internal.WriteIndex(w, &idx.idx, "bam")
}
// WriteTo writes the index to the given io.Writer. Note that
// the tabix specification states that the index is stored as BGZF, but
// WriteTo does not perform compression.
func WriteTo(w io.Writer, idx *Index) error {
err := binary.Write(w, binary.LittleEndian, tbiMagic)
if err != nil {
return err
}
err = binary.Write(w, binary.LittleEndian, int32(len(idx.idx.Refs)))
if err != nil {
return err
}
err = writeTabixHeader(w, idx)
if err != nil {
return err
}
return internal.WriteIndex(w, &idx.idx, "tabix")
}