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The python black project.


On 2019-04-23 15:39:48 +0100 (+0100), Sean Mooney wrote:
[...]
> ya i think i could get more behind autopep8 or yapf. running
> autopep8  on nova https://review.opendev.org/#/c/655171/ has very
> little change
> 
> litrally adding 1 empty new line to  to 102 files that with almost
> 0 other code curn. using autopep8 however would fix any actul pep8
> issue in new patches automatically without the downsides of black.
[...]

I'm more concerned with the implementation logistics, honestly. How
do you propose going about this? If you want to use a Git commit or
pre-commit hook then you can do it already--go for it. If you want
everyone proposing changes to the same repository to use the same
commit hook, that becomes a distribution/enforcement challenge to
solve. If you want it somehow enforced on the receiving end of the
push, say with a receive hook, that's brittle and will have side
effects such as invalidating signed commits (which we're able to
support at the moment).

Basically the only friendly and reliable way to enforce this
centrally is to have the desired style conventions validated upon
receipt by the code review system and the results reported back to
the committer. This is exactly what we already do today. There are
of course also ways to reject the change with a push error so that
the committer has to amend and push again, but that's not easy to
manage across different projects and also doesn't solve your desire
to "not need to think about code style" (paraphrased).

There is also the possibility that you simply run a periodic
autopep8 job against the codebase and have that job propose a commit
to the repository to apply code style changes if there are any, but
that's a bit of a messy hack as well.
-- 
Jeremy Stanley
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