That doesn't take neither rotated nor truncated log files into account. The easiest way, and what most log shippers do, is following inodes.

It's also not as effective as streaming them to their intended target directly. Syslog can write a complementary local copy too should you wish to keep one.

Logs has been a thing since the past forty years. In order to reinvent it, it is good to be acquainted with the standard systems.