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Populate block offsets even if the blocks are not diffed

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This commit is contained in:
Audrius Butkevicius 2014-10-17 23:16:29 +01:00
parent 86a57d8b56
commit aa168ec2d6
2 changed files with 11 additions and 7 deletions
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2
internal/model/puller.go
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@ -453,6 +453,8 @@ func (p *Puller) handleFile(file protocol.FileInfo, copyChan chan<- copyBlocksSt
FilesAreDifferent:
scanner.PopulateOffsets(file.Blocks)
// Figure out the absolute filenames we need once and for all
tempName := filepath.Join(p.dir, defTempNamer.TempName(file.Name))
realName := filepath.Join(p.dir, file.Name)

16
internal/scanner/blocks.go
View File

@ -68,6 +68,15 @@ func Blocks(r io.Reader, blocksize int, sizehint int64) ([]protocol.BlockInfo, e
return blocks, nil
}
// Set the Offset field on each block
func PopulateOffsets(blocks []protocol.BlockInfo) {
var offset int64
for i := range blocks {
blocks[i].Offset = offset
offset += int64(blocks[i].Size)
}
}
// BlockDiff returns lists of common and missing (to transform src into tgt)
// blocks. Both block lists must have been created with the same block size.
func BlockDiff(src, tgt []protocol.BlockInfo) (have, need []protocol.BlockInfo) {
@ -75,13 +84,6 @@ func BlockDiff(src, tgt []protocol.BlockInfo) (have, need []protocol.BlockInfo)
return nil, nil
}
// Set the Offset field on each target block
var offset int64
for i := range tgt {
tgt[i].Offset = offset
offset += int64(tgt[i].Size)
}
if len(tgt) != 0 && len(src) == 0 {
// Copy the entire file
return nil, tgt