Re: [gentoo-dev] [PATCHES] python-r1.eclass: any-of dep API support

[Alex Turbov <i.zaufi@gmail.com>]

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When it'll be possible to start to use it?

On Sat, May 20, 2017 at 8:30 PM, Michał Górny <mgorny@gentoo.org> wrote:

> Hi, everyone.
>
> Here's a set of patches inspired by the recent Sphinx dependency
> discussion. They make python-r1 (and therefore distutils-r1) capable
> of any-of dependency logic similar to the one used in python-any-r1.
>
> The basic goal is relatively simple -- to improve handling of pure
> build-time dependencies in the eclass. It solves two common problems:
>
> a. dependencies on packages that support only a subset of PYTHON_COMPAT,
>
> b. dependencies that need to be implementation-bound between themselves
>    (e.g. Sphinx plugins).
>
> The new API improves both of those cases significantly. For the former,
> we no longer force user to select additional targets via REQUIRED_USE --
> instead, we just any-of dependencies + python_check_deps() to select
> implementation independently of whether it is enabled or not.
>
> For the latter, we no longer have to force all targets of the package
> on all the involved dependencies. Again, using any-of dep
> and appropriate python_check_deps() we can enforce a single (any)
> target throughout all the packages and use it.
>
> The first three patches do some code refactoring that makes the change
> easier and possibly improves maintainability of the code. The next two
> patches add support for python_check_deps() and python_gen_any_dep()
> respectively. The last two patches provide examples for both use cases
> mentioned.
>
> Please review.
>
> --
> Best regards,
> Michał Górny
>
>
>

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