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restorer: Allow writing target file blobs out of order

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Much simpler implementation that guarantees each required pack
is downloaded only once (and hence does not need to manage
pack cache). Also improves large file restore performance.

Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
This commit is contained in:
Igor Fedorenko
2019-11-27 07:22:38 -05:00
committed by Leo R. Lundgren
parent f2bf06a419
commit f17ffa0283
13 changed files with 321 additions and 1448 deletions
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4
internal/restorer/restorer.go
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@@ -206,7 +206,7 @@ func (res *Restorer) RestoreTo(ctx context.Context, dst string) error {
idx := restic.NewHardlinkIndex()
filerestorer := newFileRestorer(dst, res.repo.Backend().Load, res.repo.Key(), filePackTraverser{lookup: res.repo.Index().Lookup})
filerestorer := newFileRestorer(dst, res.repo.Backend().Load, res.repo.Key(), res.repo.Index().Lookup)
// first tree pass: create directories and collect all files to restore
err = res.traverseTree(ctx, dst, string(filepath.Separator), *res.sn.Tree, treeVisitor{
@@ -249,7 +249,7 @@ func (res *Restorer) RestoreTo(ctx context.Context, dst string) error {
return err
}
err = filerestorer.restoreFiles(ctx, func(location string, err error) { res.Error(location, err) })
err = filerestorer.restoreFiles(ctx)
if err != nil {
return err
}