Hi Ringo, On Wed, Apr 04 2018, Ringo De Smet wrote:
I was thinking of implementing an option in my plugin, e.g. `--show-our-superduper-help`. This could go out to the server, fetch it's config and print the abilities which can be used in the test suite for that server.
I looked at how the regular `--help` is implemented:
https://github.com/pytest-dev/pytest/blob/71a7b3c062d51c61ee8b1ac479b1260d54...
It uses the HelpAction which raises a PrintHelp exception to shortcut on running the test suite.
Not really fond of implementing something similar. How could I get a similar behaviour for only printing the (server specific) config of my plugin?
You could look at how --fixtures is implemented, that's probably what I would follow if I wanted to do something similar. Search for "showfixtures" in _pytest/python.py. Basically add the option like normal in pytest_addoption() and then implement pytest_cmdline_main() to look for the option and handle it. If the option is not there just return None from it and the normal pytest will continue to run. Hope that helps, Floris