New git obs subcommand "testprj"

[danigm]

This new command is useful to create custom build projects with multiple packages in gitea repository. For example if you want to test several packages together you can just do it with one line:

$ git obs testprj --help
usage: git-obs [global opts] testprj [-h] [-a API_URL] [-p PRJ] [-b BRANCH] [-f] prj_name [pkg_repo ...]

Create test project in OBS linking git packages

positional arguments:
  prj_name              test project name to create in home:USER:$prj_name
  pkg_repo              pkg gitea ref, it should be [org/]repo[#branch]

options:
  -h, --help            show this help message and exit
  -a, --api-url API_URL
                        OBS api url, defaults to api.opensuse.org
  -p, --prj PRJ         OBS base project to copy config from, defaults to openSUSE:Factory
  -b, --branch BRANCH   Git branch to use
  -f, --fork            Fork gitea pkg repos in your user home, defaults to False

$ git obs testprj -p SUSE:SLFO:Main my-test-project python-pip python-fastapi#slfo-1.2

[danigm]

I don't know if this new command could be interesting to add here or as a plugin, but for now I just sent here, for you to consider if it's interesting.

If not, I can create a custom plugin with useful git-workflow commands for package maintainers.

[dmach]

Thanks for sending the patch.
I'll need some time to think about it so we can tweak it and put it in the right place.
I also need to consult the use case with @adrianschroeter - it is definitely legit, but I need to check if this is the right workflow or if it should be implemented differently.