Raise an error if file exists on destination

[Rémi Delmas]

Hello,

I am trying to use rsync to copy files from several origins to a single
destination. I would like to detect when a file gets overwritten because it
is present with the same relative path/name in several origins:


Origin1:
foo/bar.txt

Origin2:
foo/bar.txt

Destination after copy:
foo/bar.txt -> is that from Origin1 or origin2?


I know I can use the `--ignore-existing` option to make sure only the first
version is kept, or I could remove this option to keep the last one. But I
would like to be notified when this happens, either with a warning or an
error.

Is that possible with rsync?

Thanks a lot and best regards,
-- 
Remi
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