Merge branch 'pr-1094'

* pr-1094:
  GUI tweaks for last file synced
  Display last received file and time (fixes #292, fixes #801)

internal/model/model.go

@@ -98,6 +98,7 @@ type Model struct {
 	deviceStatRefs map[protocol.DeviceID]*stats.DeviceStatisticsReference // deviceID -> statsRef
 	folderIgnores  map[string]*ignore.Matcher                             // folder -> matcher object
 	folderRunners  map[string]service                                     // folder -> puller or scanner
+	folderStatRefs map[string]*stats.FolderStatisticsReference            // folder -> statsRef
 	fmut           sync.RWMutex                                           // protects the above
 
 	folderState        map[string]folderState // folder -> state
@@ -137,6 +138,7 @@ func NewModel(cfg *config.Wrapper, deviceName, clientName, clientVersion string,
 		deviceStatRefs:     make(map[protocol.DeviceID]*stats.DeviceStatisticsReference),
 		folderIgnores:      make(map[string]*ignore.Matcher),
 		folderRunners:      make(map[string]service),
+		folderStatRefs:     make(map[string]*stats.FolderStatisticsReference),
 		folderState:        make(map[string]folderState),
 		folderStateChanged: make(map[string]time.Time),
 		protoConn:          make(map[protocol.DeviceID]protocol.Connection),
@@ -283,6 +285,15 @@ func (m *Model) DeviceStatistics() map[string]stats.DeviceStatistics {
 	return res
 }
 
+// Returns statistics about each folder
+func (m *Model) FolderStatistics() map[string]stats.FolderStatistics {
+	var res = make(map[string]stats.FolderStatistics)
+	for id := range m.cfg.Folders() {
+		res[id] = m.folderStatRef(id).GetStatistics()
+	}
+	return res
+}
+
 // Returns the completion status, in percent, for the given device and folder.
 func (m *Model) Completion(device protocol.DeviceID, folder string) float64 {
 	defer m.leveldbPanicWorkaround()
@@ -873,6 +884,23 @@ func (m *Model) deviceWasSeen(deviceID protocol.DeviceID) {
 	m.deviceStatRef(deviceID).WasSeen()
 }
 
+func (m *Model) folderStatRef(folder string) *stats.FolderStatisticsReference {
+	m.fmut.Lock()
+	defer m.fmut.Unlock()
+
+	if sr, ok := m.folderStatRefs[folder]; ok {
+		return sr
+	} else {
+		sr = stats.NewFolderStatisticsReference(m.db, folder)
+		m.folderStatRefs[folder] = sr
+		return sr
+	}
+}
+
+func (m *Model) receivedFile(folder, filename string) {
+	m.folderStatRef(folder).ReceivedFile(filename)
+}
+
 func sendIndexes(conn protocol.Connection, folder string, fs *files.Set, ignores *ignore.Matcher) {
 	deviceID := conn.ID()
 	name := conn.Name()

internal/model/puller.go

@@ -830,6 +830,7 @@ func (p *Puller) finisherRoutine(in <-chan *sharedPullerState) {
 			}
 
 			p.performFinish(state)
+			p.model.receivedFile(p.folder, state.file.Name)
 			if p.progressEmitter != nil {
 				p.progressEmitter.Deregister(state)
 			}

internal/stats/folder.go

@@ -0,0 +1,133 @@
+// Copyright (C) 2014 The Syncthing Authors.
+//
+// This program is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package stats
+
+import (
+	"encoding/binary"
+	"time"
+
+	"github.com/syndtr/goleveldb/leveldb"
+)
+
+const (
+	folderStatisticTypeLastFile = iota
+)
+
+var folderStatisticsTypes = []byte{
+	folderStatisticTypeLastFile,
+}
+
+type FolderStatistics struct {
+	LastFile *LastFile
+}
+
+type FolderStatisticsReference struct {
+	db     *leveldb.DB
+	folder string
+}
+
+func NewFolderStatisticsReference(db *leveldb.DB, folder string) *FolderStatisticsReference {
+	return &FolderStatisticsReference{
+		db:     db,
+		folder: folder,
+	}
+}
+
+func (s *FolderStatisticsReference) key(stat byte) []byte {
+	k := make([]byte, 1+1+64)
+	k[0] = keyTypeFolderStatistic
+	k[1] = stat
+	copy(k[1+1:], s.folder[:])
+	return k
+}
+
+func (s *FolderStatisticsReference) GetLastFile() *LastFile {
+	value, err := s.db.Get(s.key(folderStatisticTypeLastFile), nil)
+	if err != nil {
+		if err != leveldb.ErrNotFound {
+			l.Warnln("FolderStatisticsReference: Failed loading last file filename value for", s.folder, ":", err)
+		}
+		return nil
+	}
+
+	file := LastFile{}
+	err = file.UnmarshalBinary(value)
+	if err != nil {
+		l.Warnln("FolderStatisticsReference: Failed loading last file value for", s.folder, ":", err)
+		return nil
+	}
+	return &file
+}
+
+func (s *FolderStatisticsReference) ReceivedFile(filename string) {
+	f := LastFile{
+		Filename: filename,
+		At:       time.Now(),
+	}
+	if debug {
+		l.Debugln("stats.FolderStatisticsReference.ReceivedFile:", s.folder)
+	}
+
+	value, err := f.MarshalBinary()
+	if err != nil {
+		l.Warnln("FolderStatisticsReference: Failed serializing last file value for", s.folder, ":", err)
+		return
+	}
+
+	err = s.db.Put(s.key(folderStatisticTypeLastFile), value, nil)
+	if err != nil {
+		l.Warnln("Failed update last file value for", s.folder, ":", err)
+	}
+}
+
+// Never called, maybe because it's worth while to keep the data
+// or maybe because we have no easy way of knowing that a folder has been removed.
+func (s *FolderStatisticsReference) Delete() error {
+	for _, stype := range folderStatisticsTypes {
+		err := s.db.Delete(s.key(stype), nil)
+		if debug && err == nil {
+			l.Debugln("stats.FolderStatisticsReference.Delete:", s.folder, stype)
+		}
+		if err != nil && err != leveldb.ErrNotFound {
+			return err
+		}
+	}
+	return nil
+}
+
+func (s *FolderStatisticsReference) GetStatistics() FolderStatistics {
+	return FolderStatistics{
+		LastFile: s.GetLastFile(),
+	}
+}
+
+type LastFile struct {
+	At       time.Time
+	Filename string
+}
+
+func (f *LastFile) MarshalBinary() ([]byte, error) {
+	buf := make([]byte, 8+len(f.Filename))
+	binary.BigEndian.PutUint64(buf[:8], uint64(f.At.Unix()))
+	copy(buf[8:], []byte(f.Filename))
+	return buf, nil
+}
+
+func (f *LastFile) UnmarshalBinary(buf []byte) error {
+	f.At = time.Unix(int64(binary.BigEndian.Uint64(buf[:8])), 0)
+	f.Filename = string(buf[8:])
+	return nil
+}

internal/stats/leveldb.go

@@ -18,4 +18,5 @@ package stats
 // Same key space as files/leveldb.go keyType* constants
 const (
 	keyTypeDeviceStatistic = iota + 30
+	keyTypeFolderStatistic
 )