Reinstate ignore permissions

internal/model/model.go

@@ -171,6 +171,7 @@ func (m *Model) StartFolderRW(folder string) {
 		dir:         cfg.Path,
 		scanIntv:    time.Duration(cfg.RescanIntervalS) * time.Second,
 		model:       m,
+		ignorePerms: cfg.IgnorePerms,
 	}
 	m.folderRunners[folder] = p
 	m.fmut.Unlock()

internal/model/puller.go

@@ -68,6 +68,7 @@ type Puller struct {
 	model       *Model
 	stop        chan struct{}
 	versioner   versioner.Versioner
+	ignorePerms bool
 }
 
 // Serve will run scans and pulls. It will return when Stop()ed or on a
@@ -318,6 +319,9 @@ func (p *Puller) pullerIteration(ncopiers, npullers, nfinishers int) int {
 func (p *Puller) handleDir(file protocol.FileInfo) {
 	realName := filepath.Join(p.dir, file.Name)
 	mode := os.FileMode(file.Flags & 0777)
+	if p.ignorePerms {
+		mode = 0755
+	}
 
 	if debug {
 		curFile := p.model.CurrentFolderFile(p.folder, file.Name)
@@ -357,7 +361,9 @@ func (p *Puller) handleDir(file protocol.FileInfo) {
 	// don't handle modification times on directories, because that sucks...)
 	// It's OK to change mode bits on stuff within non-writable directories.
 
-	if err := os.Chmod(realName, mode); err == nil {
+	if p.ignorePerms {
+		p.model.updateLocal(p.folder, file)
+	} else if err := os.Chmod(realName, mode); err == nil {
 		p.model.updateLocal(p.folder, file)
 	} else {
 		l.Infof("Puller (folder %q, file %q): %v", p.folder, file.Name, err)
@@ -509,14 +515,16 @@ func (p *Puller) handleFile(file protocol.FileInfo, copyChan chan<- copyBlocksSt
 // thing that has changed.
 func (p *Puller) shortcutFile(file protocol.FileInfo) {
 	realName := filepath.Join(p.dir, file.Name)
+	if !p.ignorePerms {
 		err := os.Chmod(realName, os.FileMode(file.Flags&0777))
 		if err != nil {
 			l.Infof("Puller (folder %q, file %q): shortcut: %v", p.folder, file.Name, err)
 			return
 		}
+	}
 
 	t := time.Unix(file.Modified, 0)
-	err = os.Chtimes(realName, t, t)
+	err := os.Chtimes(realName, t, t)
 	if err != nil {
 		l.Infof("Puller (folder %q, file %q): shortcut: %v", p.folder, file.Name, err)
 		return
@@ -643,12 +651,14 @@ func (p *Puller) finisherRoutine(in <-chan *sharedPullerState) {
 			}
 
 			// Set the correct permission bits on the new file
+			if !p.ignorePerms {
 				err = os.Chmod(state.tempName, os.FileMode(state.file.Flags&0777))
 				if err != nil {
 					os.Remove(state.tempName)
 					l.Warnln("puller: final:", err)
 					continue
 				}
+			}
 
 			// Set the correct timestamp on the new file
 			t := time.Unix(state.file.Modified, 0)