// Encode encodes the UploadHaves into the Writer.
func (u *UploadHaves) Encode(w io.Writer) error {
e := pktline.NewEncoder(w)
plumbing.HashesSort(u.Haves)
var last plumbing.Hash
for _, have := range u.Haves {
if bytes.Compare(last[:], have[:]) == 0 {
continue
}
if err := e.Encodef("have %s\n", have); err != nil {
return fmt.Errorf("sending haves for %q: %s", have, err)
}
last = have
}
if len(u.Haves) != 0 {
if err := e.Flush(); err != nil {
return fmt.Errorf("sending flush-pkt after haves: %s", err)
}
}
return nil
}
func (e *ulReqEncoder) Encode(v *UploadRequest) error {
e.data = v
if len(v.Wants) == 0 {
return fmt.Errorf("empty wants provided")
}
plumbing.HashesSort(e.data.Wants)
for state := e.encodeFirstWant; state != nil; {
state = state()
}
return e.err
}
func (e *ulReqEncoder) encodeShallows() stateFn {
plumbing.HashesSort(e.data.Shallows)
var last plumbing.Hash
for _, s := range e.data.Shallows {
if bytes.Compare(last[:], s[:]) == 0 {
continue
}
if err := e.pe.Encodef("shallow %s\n", s); err != nil {
e.err = fmt.Errorf("encoding shallow %q: %s", s, err)
return nil
}
last = s
}
return e.encodeDepth
}
func (s *ShallowUpdateSuite) TestDecodeUnshallow(c *C) {
raw := "" +
"0036unshallow aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" +
"0036unshallow bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" +
"0000"
su := &ShallowUpdate{}
err := su.Decode(bytes.NewBufferString(raw))
c.Assert(err, IsNil)
plumbing.HashesSort(su.Unshallows)
c.Assert(su.Shallows, HasLen, 0)
c.Assert(su.Unshallows, HasLen, 2)
c.Assert(su.Unshallows, DeepEquals, []plumbing.Hash{
plumbing.NewHash("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
plumbing.NewHash("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"),
})
}