accounting: Make checkers show what they are doing

Before this change, all types of checkers showed "checking" after the
file name despite the fact that not all of them were checking.

After this change, they can show

- checking
- deleting
- hashing
- importing
- listing
- merging
- moving
- renaming

See: https://forum.rclone.org/t/what-is-rclone-checking-during-a-purge/35931/

fs/accounting/stats.go

@@ -689,8 +689,8 @@ func (s *StatsInfo) RetryAfter() time.Time {
 }
 
 // NewCheckingTransfer adds a checking transfer to the stats, from the object.
-func (s *StatsInfo) NewCheckingTransfer(obj fs.DirEntry) *Transfer {
-	tr := newCheckingTransfer(s, obj)
+func (s *StatsInfo) NewCheckingTransfer(obj fs.DirEntry, what string) *Transfer {
+	tr := newCheckingTransfer(s, obj, what)
 	s.checking.add(tr)
 	return tr
 }
@@ -720,7 +720,7 @@ func (s *StatsInfo) NewTransfer(obj fs.DirEntry) *Transfer {
 
 // NewTransferRemoteSize adds a transfer to the stats based on remote and size.
 func (s *StatsInfo) NewTransferRemoteSize(remote string, size int64) *Transfer {
-	tr := newTransferRemoteSize(s, remote, size, false)
+	tr := newTransferRemoteSize(s, remote, size, false, "")
 	s.transferring.add(tr)
 	s.startAverageLoop()
 	return tr

fs/accounting/transfer.go

@@ -50,6 +50,7 @@ type Transfer struct {
 	size      int64
 	startedAt time.Time
 	checking  bool
+	what      string // what kind of transfer this is
 
 	// Protects all below
 	//
@@ -63,22 +64,23 @@ type Transfer struct {
 }
 
 // newCheckingTransfer instantiates new checking of the object.
-func newCheckingTransfer(stats *StatsInfo, obj fs.DirEntry) *Transfer {
-	return newTransferRemoteSize(stats, obj.Remote(), obj.Size(), true)
+func newCheckingTransfer(stats *StatsInfo, obj fs.DirEntry, what string) *Transfer {
+	return newTransferRemoteSize(stats, obj.Remote(), obj.Size(), true, what)
 }
 
 // newTransfer instantiates new transfer.
 func newTransfer(stats *StatsInfo, obj fs.DirEntry) *Transfer {
-	return newTransferRemoteSize(stats, obj.Remote(), obj.Size(), false)
+	return newTransferRemoteSize(stats, obj.Remote(), obj.Size(), false, "")
 }
 
-func newTransferRemoteSize(stats *StatsInfo, remote string, size int64, checking bool) *Transfer {
+func newTransferRemoteSize(stats *StatsInfo, remote string, size int64, checking bool, what string) *Transfer {
 	tr := &Transfer{
 		stats:     stats,
 		remote:    remote,
 		size:      size,
 		startedAt: time.Now(),
 		checking:  checking,
+		what:      what,
 	}
 	stats.AddTransfer(tr)
 	return tr

fs/accounting/transfermap.go

@@ -110,10 +110,14 @@ func (tm *transferMap) String(ctx context.Context, progress *inProgress, exclude
 		if acc := progress.get(tr.remote); acc != nil {
 			out = acc.String()
 		} else {
+			what := tr.what
+			if what == "" {
+				what = tm.name
+			}
 			out = fmt.Sprintf("%*s: %s",
 				ci.StatsFileNameLength,
 				shortenName(tr.remote, ci.StatsFileNameLength),
-				tm.name,
+				what,
 			)
 		}
 		stringList = append(stringList, " * "+out)