And one more thing: it would probably be prescient to require a get_backend_info hook that returns the name and url of the backend so that pip can direct people where to file bugs when there are problems.
On Aug 24, 2017 11:52 PM, "xoviat" <xov...@gmail.com> wrote: > Actually after reading the email that Nathaniel referenced, I disagree > with Nick's position on in-tree builds. It's absolutely necessary because > the tree may be read only and it's enforceable by pip through a simple > recursive list. > > On Aug 24, 2017 11:33 PM, "xoviat" <xov...@gmail.com> wrote: > >> Just this morning, Paul said the following: >> >> That step's the problem. If the frontend does that it can potentially >> be copying a lot of unneeded stuff (VCS history, for example). We >> tried that with pip and it was a major issue. That problem is the >> *whole point* of all the discussions about the various proposals that >> ended up with build_tree. >> >> I took that to mean that we were trusting the backend to do the right >> thing. And most people agreed with that. I don't personally care but there >> does seem to be some miscommunication here. >> >> On Aug 24, 2017 11:24 PM, "Nathaniel Smith" <n...@pobox.com> wrote: >> >>> On Thu, Aug 24, 2017 at 9:17 PM, xoviat <xov...@gmail.com> wrote: >>> > > I'm *not* OK with banning in-tree builds in the spec, since that's >>> > > both unnecessary and unenforceable >>> > >>> > Well then either we can trust the backend or we cannot. If we can, >>> then this >>> > is both necessary and enforceable. If not, then we're back to pip >>> copying >>> > files. You can't make and argument that it's okay to trust build_sdist >>> but >>> > not build_wheel. >>> >>> I think at this point everyone has made their peace with the pip >>> developers' decision that they want to keep copying files -- at least >>> for now -- and that's just how it's going to be. This email has a more >>> detailed discussion of the options, their "threat model", and the >>> tradeoffs: >>> >>> https://mail.python.org/pipermail/distutils-sig/2017-July/03 >>> 1020.html >>> >>> I can see an argument for adding language saying that build_sdist >>> SHOULD avoid modifying the source tree if possible, and MAY write >>> scratch files to the sdist_directory. >>> >>> -n >>> >>> -- >>> Nathaniel J. Smith -- https://vorpus.org >>> >>
_______________________________________________ Distutils-SIG maillist - Distutils-SIG@python.org https://mail.python.org/mailman/listinfo/distutils-sig
