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Wire up the rsync code in the send kitten

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Kovid Goyal
2023-07-20 10:15:00 +05:30
parent 1523424458
commit 063c39ea12
3 changed files with 72 additions and 20 deletions
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4
tools/rsync/algorithm.go
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@@ -608,9 +608,11 @@ func (r *rsync) CreateDelta(source io.Reader, signature []BlockHash) ([]Operatio
}
}
const DataSizeMultiple int = 8
func (r *rsync) CreateDiff(source io.Reader, signature []BlockHash, output io.Writer) func() error {
ans := &diff{
block_size: r.BlockSize, buffer: make([]byte, 0, (r.BlockSize * 8)),
block_size: r.BlockSize, buffer: make([]byte, 0, (r.BlockSize * DataSizeMultiple)),
hash_lookup: make(map[uint32][]BlockHash, len(signature)),
source: source, hasher: r.hasher_constructor(),
checksummer: r.checksummer_constructor(), output: output,

8
tools/rsync/api.go
View File

@@ -119,7 +119,7 @@ func (self *Api) read_signature_blocks(data []byte) (consumed int) {
return
}
func (self *Differ) finish_signature_data() (err error) {
func (self *Differ) FinishSignatureData() (err error) {
if len(self.unconsumed_signature_data) > 0 {
return fmt.Errorf("There were %d leftover bytes in the signature data", len(self.unconsumed_signature_data))
}
@@ -225,7 +225,7 @@ func (self *Patcher) CreateSignatureIterator(src io.Reader, output io.Writer) fu
// Create a serialized delta based on the previously loaded signature
func (self *Differ) CreateDelta(src io.Reader, output io.Writer) func() error {
if err := self.finish_signature_data(); err != nil {
if err := self.FinishSignatureData(); err != nil {
return func() error { return err }
}
if self.signature == nil {
@@ -236,6 +236,10 @@ func (self *Differ) CreateDelta(src io.Reader, output io.Writer) func() error {
return self.rsync.CreateDiff(src, self.signature, output)
}
func (self *Differ) BlockSize() int {
return self.rsync.BlockSize
}
// Add more external signature data
func (self *Differ) AddSignatureData(data []byte) (err error) {
self.unconsumed_signature_data = append(self.unconsumed_signature_data, data...)