[Distutils] Provisionally accepting PEP 517's declarative build system interface

[Thomas Kluyver]

On Wed, May 31, 2017, at 09:16 PM, Donald Stufft wrote:
> How you build the release-quality sdist isn’t really of concern of PEP
> 517 any more than building a release quality wheel is, it’s up to the
> build tool to implement that as it makes sense for them.
But if we have a hook for building something called an sdist, we need to
define what an sdist is. The definition you're referring to is a
functional definition sufficient for a tool that only wants to install
it, but it doesn't cover what an sdist means or how it fits into
workflows.
> I could see this as an argument that the PEP should have *both* a
> build_sdist and a prepare_build_files hook, if you don’t think that
> the build_sdist hook is suitable on it’s own.
I would prefer that to the the current status of one hook that tries to
cover both use cases.
I'd still rather specify prepare_build_files in this PEP, and leave the
sdist hook to a later PEP. I don't see a great need for a standard
interface to building an sdist: the developer doing that by calling
their build tool directly seems adequate for the majority of use cases.
Thomas

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