remove sigCatchupped; it has no use after refactor

(refactor: used to not have WithLabelValues)

cmd/submit.go

@@ -51,14 +51,6 @@ const SendQueueLimit = 1024
 func (s *submitter) shipFile(ctx context.Context, name string, deleteAfterRead bool) {
 	baseName := filepath.Base(name)
 
-	sigCatchupped := make(chan struct{}, 1)
-	go func() {
-		<-sigCatchupped
-		close(sigCatchupped) // once
-
-		promCatchupDone.WithLabelValues(baseName).Add(1)
-	}()
-
 	sendChan := make(chan mLog, SendQueueLimit)
 	defer close(sendChan)
 
@@ -67,7 +59,7 @@ func (s *submitter) shipFile(ctx context.Context, name string, deleteAfterRead b
 	// TODO: better way to kill or wait for mongo sendQueue before retrying (or duplicates?)
 	wait.ManagedExponentialBackoffWithContext(ctx, defaultBackoff(), func() (done bool, _ error) {
 		//
-		err := s.shipFileRoutine(ctx, name, sendChan, sigCatchupped)
+		err := s.shipFileRoutine(ctx, name, sendChan)
 		if err == nil {
 			return true, nil
 		}
@@ -78,7 +70,7 @@ func (s *submitter) shipFile(ctx context.Context, name string, deleteAfterRead b
 	})
 }
 
-func (s *submitter) shipFileRoutine(ctx context.Context, name string, sendQueue chan<- mLog, sigCatchupped chan<- struct{}) error {
+func (s *submitter) shipFileRoutine(ctx context.Context, name string, sendQueue chan<- mLog) error {
 	baseName := filepath.Base(name)
 
 	// TODO: better way for respecting ?killing sender for retry
@@ -119,6 +111,8 @@ func (s *submitter) shipFileRoutine(ctx context.Context, name string, sendQueue
 	}
 
 	var catchUpped bool // cache
+	promCatchupDone.WithLabelValues(baseName).Set(0)
+
 	for {
 		select {
 		case err := <-errChan:
@@ -133,10 +127,7 @@ func (s *submitter) shipFileRoutine(ctx context.Context, name string, sendQueue
 				catchUpped = line.EndOffset > startSize
 
 				if catchUpped {
-					select {
+					promCatchupDone.WithLabelValues(baseName).Set(1)
-					case sigCatchupped <- struct{}{}:
-					default:
-					}
 				}
 			}