pick up existing files on start

cmd/mower.go

@@ -172,7 +172,12 @@ var App = &cli.App{
 			}
 		}()
 
-		// TODO: simulate create events files for current files
+		// simulate create events to pick up files already created
+		err = simulateInitialCreate(logDir, watcher.Events)
+		if err != nil {
+			promErrWatching.Add(1)
+			l.Fatal("listing initial log directory", zap.String("name", logDir), zap.Error(err))
+		}
 
 		err = watcher.Add(logDir)
 		if err != nil {
@@ -258,3 +263,19 @@ func parseLogName(name string) (m logMeta, ok bool) {
 
 	return m, true
 }
+
+func simulateInitialCreate(dirName string, eventChan chan<- fsnotify.Event) error {
+	dir, err := os.ReadDir(dirName)
+	if err != nil {
+		return err
+	}
+
+	for _, file := range dir {
+		eventChan <- fsnotify.Event{
+			Name: filepath.Join(dirName, file.Name()),
+			Op:   fsnotify.Create,
+		}
+	}
+
+	return nil
+}

cmd/submit.go

@@ -113,7 +113,7 @@ func (s *submitter) shipFileRoutine(ctx context.Context, name string, deleteOk f
 
 	fi, err := os.Stat(name)
 	if err != nil {
-		return fmt.Errorf("getting original file size")
+		return fmt.Errorf("getting original file size: %w", err)
 	}
 	startSize := fi.Size()