Add label next to "Last file received" (fixes #1952)

gui/index.html

@@ -271,10 +271,12 @@
                       <th><span class="glyphicon glyphicon-share-alt"></span>&nbsp;<span translate>Shared With</span></th>
                       <td class="text-right">{{sharesFolder(folder)}}</td>
                     </tr>
-                    <tr ng-if="!folder.readOnly && folderStats[folder.id].lastFile">
+                    <tr ng-if="!folder.readOnly && folderStats[folder.id].lastFile && folderStats[folder.id].lastFile.filename">
                       <th><span class="glyphicon glyphicon-transfer"></span>&nbsp;<span translate>Last File Received</span></th>
                       <td class="text-right">
                         <span title="{{folderStats[folder.id].lastFile.filename}} @ {{folderStats[folder.id].lastFile.at | date:'yyyy-MM-dd HH:mm:ss'}}">
+                          <span translate ng-if="!folderStats[folder.id].lastFile.deleted">Updated</span>
+                          <span translate ng-if="folderStats[folder.id].lastFile.deleted">Deleted</span>
                           {{folderStats[folder.id].lastFile.filename | basename}}
                         </span>
                       </td>

internal/db/namespaced.go

@@ -129,6 +129,28 @@ func (n NamespacedKV) Bytes(key string) ([]byte, bool) {
 	return valBs, true
 }
 
+// PutBool stores a new boolean. Any existing value (even if of another type)
+// is overwritten.
+func (n *NamespacedKV) PutBool(key string, val bool) {
+	keyBs := append(n.prefix, []byte(key)...)
+	if val {
+		n.db.Put(keyBs, []byte{0x0}, nil)
+	} else {
+		n.db.Put(keyBs, []byte{0x1}, nil)
+	}
+}
+
+// Bool returns the stored value as a boolean and a boolean that
+// is false if no value was stored at the key.
+func (n NamespacedKV) Bool(key string) (bool, bool) {
+	keyBs := append(n.prefix, []byte(key)...)
+	valBs, err := n.db.Get(keyBs, nil)
+	if err != nil {
+		return false, false
+	}
+	return valBs[0] == 0x0, true
+}
+
 // Delete deletes the specified key. It is allowed to delete a nonexistent
 // key.
 func (n NamespacedKV) Delete(key string) {

internal/model/model.go

@@ -1025,8 +1025,8 @@ func (m *Model) folderStatRef(folder string) *stats.FolderStatisticsReference {
 	return sr
 }
 
-func (m *Model) receivedFile(folder, filename string) {
-	m.folderStatRef(folder).ReceivedFile(filename)
+func (m *Model) receivedFile(folder string, file protocol.FileInfo) {
+	m.folderStatRef(folder).ReceivedFile(file)
 }
 
 func sendIndexes(conn protocol.Connection, folder string, fs *db.FileSet, ignores *ignore.Matcher) {

internal/model/rwfolder.go

@@ -54,6 +54,19 @@ var (
 	errNoDevice = errors.New("no available source device")
 )
 
+const (
+	dbUpdateHandleDir = iota
+	dbUpdateDeleteDir
+	dbUpdateHandleFile
+	dbUpdateDeleteFile
+	dbUpdateShortcutFile
+)
+
+type dbUpdateJob struct {
+	file    protocol.FileInfo
+	jobType int
+}
+
 type rwFolder struct {
 	stateTracker
 
@@ -73,7 +86,7 @@ type rwFolder struct {
 
 	stop        chan struct{}
 	queue       *jobQueue
-	dbUpdates   chan protocol.FileInfo
+	dbUpdates   chan dbUpdateJob
 	scanTimer   *time.Timer
 	pullTimer   *time.Timer
 	delayScan   chan time.Duration
@@ -326,7 +339,7 @@ func (p *rwFolder) pullerIteration(ignores *ignore.Matcher) int {
 		l.Debugln(p, "c", p.copiers, "p", p.pullers)
 	}
 
-	p.dbUpdates = make(chan protocol.FileInfo)
+	p.dbUpdates = make(chan dbUpdateJob)
 	updateWg.Add(1)
 	go func() {
 		// dbUpdaterRoutine finishes when p.dbUpdates is closed
@@ -583,7 +596,7 @@ func (p *rwFolder) handleDir(file protocol.FileInfo) {
 		}
 
 		if err = osutil.InWritableDir(mkdir, realName); err == nil {
-			p.dbUpdates <- file
+			p.dbUpdates <- dbUpdateJob{file, dbUpdateHandleDir}
 		} else {
 			l.Infof("Puller (folder %q, dir %q): %v", p.folder, file.Name, err)
 		}
@@ -600,9 +613,9 @@ func (p *rwFolder) handleDir(file protocol.FileInfo) {
 	// It's OK to change mode bits on stuff within non-writable directories.
 
 	if p.ignorePermissions(file) {
-		p.dbUpdates <- file
+		p.dbUpdates <- dbUpdateJob{file, dbUpdateHandleDir}
 	} else if err := os.Chmod(realName, mode); err == nil {
-		p.dbUpdates <- file
+		p.dbUpdates <- dbUpdateJob{file, dbUpdateHandleDir}
 	} else {
 		l.Infof("Puller (folder %q, dir %q): %v", p.folder, file.Name, err)
 	}
@@ -642,13 +655,13 @@ func (p *rwFolder) deleteDir(file protocol.FileInfo) {
 	err = osutil.InWritableDir(osutil.Remove, realName)
 	if err == nil || os.IsNotExist(err) {
 		// It was removed or it doesn't exist to start with
-		p.dbUpdates <- file
+		p.dbUpdates <- dbUpdateJob{file, dbUpdateDeleteDir}
 	} else if _, serr := os.Lstat(realName); serr != nil && !os.IsPermission(serr) {
 		// We get an error just looking at the directory, and it's not a
 		// permission problem. Lets assume the error is in fact some variant
 		// of "file does not exist" (possibly expressed as some parent being a
 		// file and not a directory etc) and that the delete is handled.
-		p.dbUpdates <- file
+		p.dbUpdates <- dbUpdateJob{file, dbUpdateDeleteDir}
 	} else {
 		l.Infof("Puller (folder %q, dir %q): delete: %v", p.folder, file.Name, err)
 	}
@@ -690,13 +703,13 @@ func (p *rwFolder) deleteFile(file protocol.FileInfo) {
 
 	if err == nil || os.IsNotExist(err) {
 		// It was removed or it doesn't exist to start with
-		p.dbUpdates <- file
+		p.dbUpdates <- dbUpdateJob{file, dbUpdateDeleteFile}
 	} else if _, serr := os.Lstat(realName); serr != nil && !os.IsPermission(serr) {
 		// We get an error just looking at the file, and it's not a permission
 		// problem. Lets assume the error is in fact some variant of "file
 		// does not exist" (possibly expressed as some parent being a file and
 		// not a directory etc) and that the delete is handled.
-		p.dbUpdates <- file
+		p.dbUpdates <- dbUpdateJob{file, dbUpdateDeleteFile}
 	} else {
 		l.Infof("Puller (folder %q, file %q): delete: %v", p.folder, file.Name, err)
 	}
@@ -756,13 +769,15 @@ func (p *rwFolder) renameFile(source, target protocol.FileInfo) {
 		// of the source and the creation of the target. Fix-up the metadata,
 		// and update the local index of the target file.
 
-		p.dbUpdates <- source
+		p.dbUpdates <- dbUpdateJob{source, dbUpdateDeleteFile}
 
 		err = p.shortcutFile(target)
 		if err != nil {
 			l.Infof("Puller (folder %q, file %q): rename from %q metadata: %v", p.folder, target.Name, source.Name, err)
 			return
 		}
+
+		p.dbUpdates <- dbUpdateJob{target, dbUpdateHandleFile}
 	} else {
 		// We failed the rename so we have a source file that we still need to
 		// get rid of. Attempt to delete it instead so that we make *some*
@@ -774,7 +789,7 @@ func (p *rwFolder) renameFile(source, target protocol.FileInfo) {
 			return
 		}
 
-		p.dbUpdates <- source
+		p.dbUpdates <- dbUpdateJob{source, dbUpdateDeleteFile}
 	}
 }
 
@@ -848,6 +863,11 @@ func (p *rwFolder) handleFile(file protocol.FileInfo, copyChan chan<- copyBlocks
 			"type":   "file",
 			"action": "metadata",
 		})
+
+		if err != nil {
+			p.dbUpdates <- dbUpdateJob{file, dbUpdateShortcutFile}
+		}
+
 		return
 	}
 
@@ -954,16 +974,13 @@ func (p *rwFolder) shortcutFile(file protocol.FileInfo) error {
 		file.Version = file.Version.Merge(cur.Version)
 	}
 
-	p.dbUpdates <- file
 	return nil
 }
 
 // shortcutSymlink changes the symlinks type if necessary.
 func (p *rwFolder) shortcutSymlink(file protocol.FileInfo) (err error) {
 	err = symlinks.ChangeType(filepath.Join(p.dir, file.Name), file.Flags)
-	if err == nil {
-		p.dbUpdates <- file
-	} else {
+	if err != nil {
 		l.Infof("Puller (folder %q, file %q): symlink shortcut: %v", p.folder, file.Name, err)
 	}
 	return
@@ -1183,7 +1200,7 @@ func (p *rwFolder) performFinish(state *sharedPullerState) error {
 	}
 
 	// Record the updated file in the index
-	p.dbUpdates <- state.file
+	p.dbUpdates <- dbUpdateJob{state.file, dbUpdateHandleFile}
 	return nil
 }
 
@@ -1239,39 +1256,63 @@ func (p *rwFolder) dbUpdaterRoutine() {
 		maxBatchTime = 2 * time.Second
 	)
 
-	batch := make([]protocol.FileInfo, 0, maxBatchSize)
+	batch := make([]dbUpdateJob, 0, maxBatchSize)
+	files := make([]protocol.FileInfo, 0, maxBatchSize)
 	tick := time.NewTicker(maxBatchTime)
 	defer tick.Stop()
 
+	handleBatch := func() {
+		found := false
+		var lastFile protocol.FileInfo
+
+		for _, job := range batch {
+			files = append(files, job.file)
+			if job.file.IsInvalid() || (job.file.IsDirectory() && !job.file.IsSymlink()) {
+				continue
+			}
+
+			if job.jobType&(dbUpdateHandleFile|dbUpdateDeleteFile) == 0 {
+				continue
+			}
+
+			found = true
+			lastFile = job.file
+		}
+
+		p.model.updateLocals(p.folder, files)
+
+		if found {
+			p.model.receivedFile(p.folder, lastFile)
+		}
+
+		batch = batch[:0]
+		files = files[:0]
+	}
+
 loop:
 	for {
 		select {
-		case file, ok := <-p.dbUpdates:
+		case job, ok := <-p.dbUpdates:
 			if !ok {
 				break loop
 			}
 
-			file.LocalVersion = 0
-			batch = append(batch, file)
+			job.file.LocalVersion = 0
+			batch = append(batch, job)
 
 			if len(batch) == maxBatchSize {
-				p.model.updateLocals(p.folder, batch)
-				p.model.receivedFile(p.folder, batch[len(batch)-1].Name)
-				batch = batch[:0]
+				handleBatch()
 			}
 
 		case <-tick.C:
 			if len(batch) > 0 {
-				p.model.updateLocals(p.folder, batch)
-				p.model.receivedFile(p.folder, batch[len(batch)-1].Name)
-				batch = batch[:0]
+				handleBatch()
 			}
 		}
 	}
 
 	if len(batch) > 0 {
-		p.model.updateLocals(p.folder, batch)
-		p.model.receivedFile(p.folder, batch[len(batch)-1].Name)
+		handleBatch()
 	}
 }
 

internal/stats/folder.go

@@ -9,6 +9,8 @@ package stats
 import (
 	"time"
 
+	"github.com/syncthing/protocol"
+
 	"github.com/syncthing/syncthing/internal/db"
 	"github.com/syndtr/goleveldb/leveldb"
 )
@@ -25,6 +27,7 @@ type FolderStatisticsReference struct {
 type LastFile struct {
 	At       time.Time `json:"at"`
 	Filename string    `json:"filename"`
+	Deleted  bool      `json:"deleted"`
 }
 
 func NewFolderStatisticsReference(ldb *leveldb.DB, folder string) *FolderStatisticsReference {
@@ -44,18 +47,21 @@ func (s *FolderStatisticsReference) GetLastFile() LastFile {
 	if !ok {
 		return LastFile{}
 	}
+	deleted, ok := s.ns.Bool("lastFileDeleted")
 	return LastFile{
 		At:       at,
 		Filename: file,
+		Deleted:  deleted,
 	}
 }
 
-func (s *FolderStatisticsReference) ReceivedFile(filename string) {
+func (s *FolderStatisticsReference) ReceivedFile(file protocol.FileInfo) {
 	if debug {
-		l.Debugln("stats.FolderStatisticsReference.ReceivedFile:", s.folder, filename)
+		l.Debugln("stats.FolderStatisticsReference.ReceivedFile:", s.folder, file)
 	}
 	s.ns.PutTime("lastFileAt", time.Now())
-	s.ns.PutString("lastFileName", filename)
+	s.ns.PutString("lastFileName", file.Name)
+	s.ns.PutBool("lastFileDeleted", file.IsDeleted())
 }
 
 func (s *FolderStatisticsReference) GetStatistics() FolderStatistics {