[GHC DevOps Group] CircleCI job accounting question

[Ben Gamari]

Manuel M T Chakravarty <manuel.chakravarty at tweag.io> writes:

> Mateusz had a first stab
>
>   https://github.com/tweag/ghc/blob/tweag/circleci-macos/appveyor.yml <https://github.com/tweag/ghc/blob/tweag/circleci-macos/appveyor.yml>
>
> but got stuck in the default resource limits. We emailed them with a
> request, but there was no answer so far. I’ll follow up on it.
>
Any update on this? For the record, I have confirmed with the Rustaceans
that Mozilla indeed pays for their usage.


In other news,

 * I have disabled artifact collection in the OS X build for now.

 * It appears that CircleCI only builds the head commits of pushes.
   Making this configurable has been a feature request for nearly a year
   now, so it looks like we will need to work around this. I briefly
   looked into setting up some automation to trigger builds on otherwise
   untested commits, but ran into apparent API bugginess. It looks like
   we'll just need to ensure that contributors push at most one commit
   at a time for now to ensure all commits get testing. See GHC #14505
   for details.

 * I have tried enabling testing of Harbormaster Differentials via
   CircleCI. Unfortunately it appears that CircleCI only supports
   testing repositories hosted on GitHub. There are a few ways in which
   we could proceed,

    a. Move ghc's staging area (the repository where Arcanist pushes
       patches submitted with `arc diff`) to GitHub. This, however, would
       require that we manually manage push privileges to this repository.

    b. Try to work around the issue by mirroring GHC's staging area to
       GitHub and manually trigger CircleCI builds.

 * I have been honing the Hadrian test infrastructure; I'm currently
   waiting on a build, but I expect this attempt will pass, at which point
   I will merge it.

Cheers,

- Ben
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