Mysql binlog file names looks like foobar.000001, foobar.000002 (with leading zeroes) And it looks like they can be compared lexicographically, but.

gocyclo:ignorenolint:funlen.

HandleCopyBackup copy all backups from one storage to another.

HandleCopyBackup copy specific backups from one storage to another.

MarkBackup marks a backup as permanent or impermanent.

nolint:gocritic.

128k should be enough to parse prev_gtids event.