mirror of
https://github.com/octoleo/syncthing.git
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131 lines
3.3 KiB
Go
131 lines
3.3 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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"context"
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"time"
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"github.com/syncthing/syncthing/lib/config"
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"github.com/syncthing/syncthing/lib/watchaggregator"
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)
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type folder struct {
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stateTracker
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config.FolderConfiguration
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scan folderScanner
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model *Model
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ctx context.Context
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cancel context.CancelFunc
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initialScanFinished chan struct{}
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watchCancel context.CancelFunc
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watchChan chan []string
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ignoresUpdated chan struct{} // The ignores changed, we need to restart watcher
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}
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func newFolder(model *Model, cfg config.FolderConfiguration) folder {
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ctx, cancel := context.WithCancel(context.Background())
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return folder{
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stateTracker: newStateTracker(cfg.ID),
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FolderConfiguration: cfg,
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scan: newFolderScanner(cfg),
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ctx: ctx,
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cancel: cancel,
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model: model,
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initialScanFinished: make(chan struct{}),
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}
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}
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func (f *folder) IndexUpdated() {
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}
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func (f *folder) DelayScan(next time.Duration) {
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f.scan.Delay(next)
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}
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func (f *folder) Scan(subdirs []string) error {
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<-f.initialScanFinished
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return f.scan.Scan(subdirs)
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}
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func (f *folder) Stop() {
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f.cancel()
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}
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func (f *folder) Jobs() ([]string, []string) {
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return nil, nil
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}
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func (f *folder) BringToFront(string) {}
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func (f *folder) BlockStats() map[string]int {
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return nil
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}
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func (f *folder) scanSubdirs(subDirs []string) error {
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if err := f.model.internalScanFolderSubdirs(f.ctx, f.folderID, subDirs); err != nil {
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// Potentially sets the error twice, once in the scanner just
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// by doing a check, and once here, if the error returned is
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// the same one as returned by CheckFolderHealth, though
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// duplicate set is handled by setError.
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f.setError(err)
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return err
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}
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return nil
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}
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func (f *folder) scanTimerFired() {
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err := f.scanSubdirs(nil)
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select {
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case <-f.initialScanFinished:
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default:
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status := "Completed"
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if err != nil {
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status = "Failed"
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}
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l.Infoln(status, "initial scan of", f.Type.String(), "folder", f.Description())
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close(f.initialScanFinished)
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}
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f.scan.Reschedule()
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}
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func (f *folder) startWatcher() {
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ctx, cancel := context.WithCancel(f.ctx)
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f.model.fmut.RLock()
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ignores := f.model.folderIgnores[f.folderID]
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f.model.fmut.RUnlock()
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eventChan, err := f.Filesystem().Watch(".", ignores, ctx, f.IgnorePerms)
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if err != nil {
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l.Warnf("Failed to start filesystem watcher for folder %s: %v", f.Description(), err)
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} else {
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f.watchChan = make(chan []string)
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f.watchCancel = cancel
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watchaggregator.Aggregate(eventChan, f.watchChan, f.FolderConfiguration, f.model.cfg, ctx)
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l.Infoln("Started filesystem watcher for folder", f.Description())
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}
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}
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func (f *folder) restartWatcher() {
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f.watchCancel()
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f.startWatcher()
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f.Scan(nil)
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}
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func (f *folder) IgnoresUpdated() {
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select {
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case f.ignoresUpdated <- struct{}{}:
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default:
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// We might be busy doing a pull and thus not reading from this
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// channel. The channel is 1-buffered, so one notification will be
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// queued to ensure we recheck after the pull.
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}
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}
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