build: remove empty directories during uninstallation

[pktiuk]

Closes #68

Proposed changes

• delete directories left after antimicrox uninstallation using cmake

[pktiuk]

Output during uninstallation in my case

Remaining directories to be deleted: /usr/include/antimicrox;/usr/share/doc/antimicrox;/usr/share/antimicrox

[gombosg]

It's ok but this looks like a really brute force way. 😆

[pktiuk]

@gombosg
Which part of this solution is brute force for you?
Entire deleting directories, or maybe one aspect of implementation?

[gombosg]

Nah, it's fine. I don't know what it actually deletes and how it works - it's just cmake magic for me.
E.G. in RPM specfiles, you specify files and directories. If you specify a directory then a package owns it, and make sure that it doesn't delete directories it doesn't own.

If you take a look, it's these for Fedora: https://src.fedoraproject.org/rpms/antimicrox/blob/master/f/antimicrox.spec#_92-107

So the directories you listed are fine, correspond to this one.

[pktiuk]

This is just looking for directories with paths ending with antimicrox among directories where antimicrox had files (but not these containing antimicrox anywhere else just in case if someone had installed antimicrox in directories like /home/antimicrox/.local/bin).

I think installing using packages should be a recommended way of installation.
Currently, our build instructions don't contain instructions for building rpm package.