write file info only when data is not empty

This commit is contained in:
Chris Lu 2013-07-12 00:30:45 -07:00
parent b87ec11c1c
commit 90018be9d2

View file

@ -87,7 +87,6 @@ func (n *Needle) Append(w io.Writer, version Version) (size uint32, err error) {
if _, err = w.Write(header[0:1]); err != nil {
return
}
}
if n.HasName() {
util.Uint8toBytes(header[0:1], n.NameSize)
if _, err = w.Write(header[0:1]); err != nil {
@ -112,6 +111,7 @@ func (n *Needle) Append(w io.Writer, version Version) (size uint32, err error) {
return
}
}
}
padding := NeedlePaddingSize - ((NeedleHeaderSize + n.Size + NeedleChecksumSize) % NeedlePaddingSize)
util.Uint32toBytes(header[0:NeedleChecksumSize], n.Checksum.Value())
_, err = w.Write(header[0 : NeedleChecksumSize+padding])