Add new --extract-rename option

[bluca]

Allows extracting a file and renaming it. Useful for Debian builds where the recipe file is in git, but the naming doesn't match OBS expectations: usually git stores debian/control but OBS wants debian.control. Also useful for multibuild, eg, to extract foo.spec to foo_TargetRepository.spec.

[Werkov]

Isn't this what https://github.com/openSUSE/obs-service-extract_file already does? I see you actually use it (It seems to me clearer to handle the renaming together with moving of files.)

[bluca]

Isn't this what https://github.com/openSUSE/obs-service-extract_file already does? I see you actually use it (It seems to me clearer to handle the renaming together with moving of files.)

That only works on tarballs, so you need to use tar_scm instead of obs_scm, and my understanding is that OBS admins want people to use obs_scm as it's easier on the backend and the storage.

It's fine for build-time operations, but this is needed as part of the service run, as you need to extract the debian/control file and call it debian.control so that the dependencies can be parsed out of it, which happens at the source service time.

[bluca]

@M0ses gentle ping for a review. TIA!

[M0ses]

@bluca Could you rebase to current master. I would like to see if the tests pass now or what breaks. Unfortunatly the old logs where no longer found.

[bluca]

@M0ses done, it was a couple of linter warnings, fixed them, all green now