ftp: fix transfers from servers that return 250 ok messages

backend/b2/b2.go

@@ -72,7 +72,7 @@ const (
 
 // Globals
 var (
-	errNotWithVersions  = errors.New("can't modify or delete files in --b2-versions mode")
+	errNotWithVersions  = errors.New("can't modify files in --b2-versions mode")
 	errNotWithVersionAt = errors.New("can't modify or delete files in --b2-version-at mode")
 )
 
@@ -2334,7 +2334,10 @@ func (f *Fs) OpenChunkWriter(ctx context.Context, remote string, src fs.ObjectIn
 func (o *Object) Remove(ctx context.Context) error {
 	bucket, bucketPath := o.split()
 	if o.fs.opt.Versions {
-		return errNotWithVersions
+		t, path := api.RemoveVersion(bucketPath)
+		if !t.IsZero() {
+			return o.fs.deleteByID(ctx, o.id, path)
+		}
 	}
 	if o.fs.opt.VersionAt.IsSet() {
 		return errNotWithVersionAt

backend/ftp/ftp.go

@@ -1292,7 +1292,7 @@ func (f *ftpReadCloser) Close() error {
 	// See: https://github.com/rclone/rclone/issues/3445#issuecomment-521654257
 	if errX := textprotoError(err); errX != nil {
 		switch errX.Code {
-		case ftp.StatusTransfertAborted, ftp.StatusFileUnavailable, ftp.StatusAboutToSend:
+		case ftp.StatusTransfertAborted, ftp.StatusFileUnavailable, ftp.StatusAboutToSend, ftp.StatusRequestedFileActionOK:
 			err = nil
 		}
 	}

docs/content/b2.md

@@ -192,7 +192,7 @@ flag which permanently removes files on deletion instead of hiding
 them.
 
 Old versions of files, where available, are visible using the
-`--b2-versions` flag.
+`--b2-versions` flag. These can be deleted as required with `delete`.
 
 It is also possible to view a bucket as it was at a certain point in time,
 using the `--b2-version-at` flag. This will show the file versions as they