%files %dir and sections of rpm spec files

[robsliwi]

I'm searching for a way to specify some sections that can be specified in a RPM spec file.
For example the files section.

The assets is fine for copying files from source to dest with some additional options. But it's missing some use cases like just specifying some directories that belong to the RPM.

Am I missing something or is there a create workaround like a directory with a .keep file as source?

[robsliwi]

Closing in favor of #120