this post was submitted on 13 Oct 2024
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I suspect it's somewhat inevitable, since in order to sync you need to know what's the difference between files here and there (unless using smth like zfs send which should be able to send only the changes, I guess?). I'd probably tag everything at once and then sync
If a file has not been modified, why does it need to be scanned?
That's if you don't keep track of whether it was modified. It comes more or less for free if you're the filesystem, but may be more complicated for external programs. Although, ?maybe inotifywait can track for changes to the whole directory, but I'm not sure here
Isn't there a last modified time stamp on files?
Huh, didn't think of that 😅
I'm not an expert in that, But I also came to comment about something like zfs. I'm currently using btrfs and it works great for backup. The idea is that the filesystem itself contains the information what changed as far as I understand. And therefore the send operation are very lightway. As they are so lightway it would probbably be possible to also just do manuel sync(e.g. when you finished working for the day. However I can currently not think of abdirectional way where you have changes at both places and then merge them.