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Merge pull request #515 from viric/fix_traverse_order

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Traverse paths in the same order as parent snapshot
This commit is contained in:
Alexander Neumann 2016-05-09 22:10:36 +02:00
commit 84f7d28abf
1 changed files with 12 additions and 1 deletions
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13
src/restic/archiver.go
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@ -621,12 +621,23 @@ func unique(items []string) []string {
return items return items
} }
// baseNameSlice allows sorting paths by basename.
//
// Snapshots have contents sorted by basename, but we receive full paths.
// For the archivePipe to advance them in pairs, we traverse the given
// paths in the same order as the snapshot.
type baseNameSlice []string
func (p baseNameSlice) Len() int { return len(p) }
func (p baseNameSlice) Less(i, j int) bool { return filepath.Base(p[i]) < filepath.Base(p[j]) }
func (p baseNameSlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
// Snapshot creates a snapshot of the given paths. If parentID is set, this is // Snapshot creates a snapshot of the given paths. If parentID is set, this is
// used to compare the files to the ones archived at the time this snapshot was // used to compare the files to the ones archived at the time this snapshot was
// taken. // taken.
func (arch *Archiver) Snapshot(p *Progress, paths []string, parentID *backend.ID) (*Snapshot, backend.ID, error) { func (arch *Archiver) Snapshot(p *Progress, paths []string, parentID *backend.ID) (*Snapshot, backend.ID, error) {
paths = unique(paths) paths = unique(paths)
sort.Strings(paths) sort.Sort(baseNameSlice(paths))
debug.Log("Archiver.Snapshot", "start for %v", paths) debug.Log("Archiver.Snapshot", "start for %v", paths)