func (plan *PatchPlan) appendFilePlan(srcFile *fs.File, dstPath string) error {
match, err := MatchIndex(plan.srcStore.Index(), plan.dstStore.Resolve(dstPath))
if match == nil {
return err
}
match.SrcSize = srcFile.Size
// Create a local temporary file in which to effect changes
localTemp := &LocalTemp{
Path: &LocalPath{
LocalStore: plan.dstStore,
RelPath: dstPath},
Size: match.SrcSize}
plan.Cmds = append(plan.Cmds, localTemp)
for _, blockMatch := range match.BlockMatches {
plan.Cmds = append(plan.Cmds, &LocalTempCopy{
Temp: localTemp,
LocalOffset: blockMatch.SrcBlock.Offset(),
TempOffset: blockMatch.DstOffset,
Length: int64(fs.BLOCKSIZE)})
}
for _, srcRange := range match.NotMatched() {
plan.Cmds = append(plan.Cmds, &SrcTempCopy{
Temp: localTemp,
SrcStrong: srcFile.Strong(),
SrcOffset: srcRange.From,
TempOffset: srcRange.From,
Length: srcRange.To - srcRange.From})
}
// Replace dst file with temp
plan.Cmds = append(plan.Cmds, &ReplaceWithTemp{Temp: localTemp})
return nil
}
