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https://github.com/syncthing/syncthing.git
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158859a1e2
Unignored files are marked as conflicting while scanning, which is then resolved in the subsequent pull. Automatically reconciles needed items on send-only folders, if they do not actually differ except for internal metadata.
137 lines
3.2 KiB
Go
137 lines
3.2 KiB
Go
// Copyright (C) 2014 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 model
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import (
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"fmt"
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"github.com/syncthing/syncthing/lib/config"
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"github.com/syncthing/syncthing/lib/db"
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"github.com/syncthing/syncthing/lib/fs"
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"github.com/syncthing/syncthing/lib/protocol"
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"github.com/syncthing/syncthing/lib/versioner"
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)
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func init() {
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folderFactories[config.FolderTypeSendOnly] = newSendOnlyFolder
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}
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type sendOnlyFolder struct {
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folder
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}
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func newSendOnlyFolder(model *Model, cfg config.FolderConfiguration, _ versioner.Versioner, _ fs.Filesystem) service {
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return &sendOnlyFolder{folder: newFolder(model, cfg)}
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}
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func (f *sendOnlyFolder) Serve() {
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l.Debugln(f, "starting")
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defer l.Debugln(f, "exiting")
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defer func() {
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f.scan.timer.Stop()
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}()
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if f.FSWatcherEnabled && f.CheckHealth() == nil {
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f.startWatch()
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}
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for {
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select {
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case <-f.ctx.Done():
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return
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case <-f.pullScheduled:
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f.pull()
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case <-f.restartWatchChan:
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f.restartWatch()
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case <-f.scan.timer.C:
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l.Debugln(f, "Scanning subdirectories")
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f.scanTimerFired()
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case req := <-f.scan.now:
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req.err <- f.scanSubdirs(req.subdirs)
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case next := <-f.scan.delay:
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f.scan.timer.Reset(next)
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case fsEvents := <-f.watchChan:
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l.Debugln(f, "filesystem notification rescan")
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f.scanSubdirs(fsEvents)
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}
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}
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}
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func (f *sendOnlyFolder) String() string {
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return fmt.Sprintf("sendOnlyFolder/%s@%p", f.folderID, f)
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}
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func (f *sendOnlyFolder) PullErrors() []FileError {
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return nil
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}
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// pull checks need for files that only differ by metadata (no changes on disk)
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func (f *sendOnlyFolder) pull() {
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select {
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case <-f.initialScanFinished:
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default:
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// Once the initial scan finished, a pull will be scheduled
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return
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}
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f.model.fmut.RLock()
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folderFiles := f.model.folderFiles[f.folderID]
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ignores := f.model.folderIgnores[f.folderID]
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f.model.fmut.RUnlock()
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batch := make([]protocol.FileInfo, 0, maxBatchSizeFiles)
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batchSizeBytes := 0
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folderFiles.WithNeed(protocol.LocalDeviceID, func(intf db.FileIntf) bool {
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if len(batch) == maxBatchSizeFiles || batchSizeBytes > maxBatchSizeBytes {
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f.model.updateLocalsFromPulling(f.folderID, batch)
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batch = batch[:0]
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batchSizeBytes = 0
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}
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if ignores.ShouldIgnore(intf.FileName()) {
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file := intf.(protocol.FileInfo)
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file.Invalidate(f.shortID)
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batch = append(batch, file)
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batchSizeBytes += file.ProtoSize()
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l.Debugln(f, "Handling ignored file", file)
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return true
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}
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curFile, ok := f.model.CurrentFolderFile(f.folderID, intf.FileName())
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if !ok {
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if intf.IsDeleted() {
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panic("Should never get a deleted file as needed when we don't have it")
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}
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return true
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}
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file := intf.(protocol.FileInfo)
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if !file.IsEquivalent(curFile, f.IgnorePerms, false) {
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return true
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}
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file.Version = file.Version.Merge(curFile.Version)
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batch = append(batch, file)
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batchSizeBytes += file.ProtoSize()
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l.Debugln(f, "Merging versions of identical file", file)
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return true
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})
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if len(batch) > 0 {
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f.model.updateLocalsFromPulling(f.folderID, batch)
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}
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}
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