[pytest-dev] on opening up single character options via a registry

[RonnyPfannschmidt]

Am 06.08.2017 um 22:11 schrieb Floris Bruynooghe:
> RonnyPfannschmidt <opensource at ronnypfannschmidt.de> writes:
>> as it pains me that we sneakily call private methods to use single
>> character options in xdist&co,
>> i propose to open up single character options to other plugins by means
>> of a registry,
> 
> What's wrong with the stance that this was a historical mistake and
> should never have been allowed?  It's a lot easier to handle, i.e. do
> nothing but apologise to plugin devs who want to use short options.

that is indeed an option,
i would prefer a way to have at least use the plugins under pytest-dev
use a well defined public specification in future

> 
>> so that plugins that have a registered single character will be able to
>> use it in py.test versions that have that association saved
>>
>> we could even go as far as making the registry a extra pytest plugin
>> that can be updated out of band from pytest itself
> 
> A plugin is probably the best way to go here.  It also means we'd be
> exposing the register functionality via hooks which is cute as it allows
> alternate registries to appear.  Your definition of cute may obviously
> vary, but I think this would work out fine and no chaos would ensue.
if we allow alternate registries for the pytest single character
options, then we just allow anyone to use anything after all.

collisions tend to be a pain, i believe its very helpful to have such a
registry as authoritative entity simply to avoid conflict for users

its already a pain to see the mess that's happening around marks and
mark name collisions, i don't see any compelling reason to repeat that
failure for options

-- Ronny

> >
> Cheers,
> Floris
>