Atomic file rewrites compatible with --temp-dir

[alopatindev]

Thanks for making the legendary software.

I'd like to store temporary files in a separate directory but on the same mountpoint as the destination directory.

man 1 rsync states "--temp-dir ... rsync will not be able to rename each received temporary file over the top of the associated destination file, but instead must copy it into place"

Is it possible to achieve the same behavior but with file renaming rather than copying?

The reason why I want to do that is

• it would be easy and safe to remove temporary files after any failure
• all file writes will be atomic, no way something like partial config will be automatically reloaded by nginx (due to automatic config check + reload with inotifywait for instance)
• none of the temporary files will ever be considered as valid configuration files (by whatever that might assume that blabla.d/.blabla.conf.XXXXXX is a real configuration file on the next automatic reload attempt)