How to do (m)put in WebDav without overwriting files?

Question

Backup

I use Yandex.Disk for backup (it just so happened). But they only have WebDav for my OS.
I use Cadaver.
I'm trying to upload about 20 100MB files via mput.
Sometimes, let's say something breaks on the 5th.
How to restore the process now?
Those. you need to somehow determine the under-downloaded file and rewrite it, but already fully uploaded - no.
Thank you.

Answer 1

Don't bother, I made it in php and Yandex.API :)