mirror of
https://github.com/octoleo/syncthing.git
synced 2024-11-06 05:17:49 +00:00
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
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// Copyright (C) 2017 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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package versioner
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import (
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"path/filepath"
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"sort"
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"github.com/syncthing/syncthing/lib/fs"
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)
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type emptyDirTracker map[string]struct{}
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func (t emptyDirTracker) addDir(path string) {
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if path == "." {
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return
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}
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t[path] = struct{}{}
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}
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// Remove all dirs from the path to the file
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func (t emptyDirTracker) addFile(path string) {
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dir := filepath.Dir(path)
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for dir != "." {
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delete(t, dir)
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dir = filepath.Dir(dir)
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}
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}
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func (t emptyDirTracker) emptyDirs() []string {
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empty := []string{}
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for dir := range t {
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empty = append(empty, dir)
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}
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sort.Sort(sort.Reverse(sort.StringSlice(empty)))
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return empty
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}
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func (t emptyDirTracker) deleteEmptyDirs(fs fs.Filesystem) {
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for _, path := range t.emptyDirs() {
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l.Debugln("Cleaner: deleting empty directory", path)
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err := fs.Remove(path)
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if err != nil {
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l.Warnln("Versioner: can't remove directory", path, err)
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}
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}
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}
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