[llvm-dev] [cfe-dev] RFC: Using GitHub Actions for CI testing on the release/* branches

[Philip Reames via llvm-dev]

+1, I'll be really curious to know how this works out.

Philip

On 11/11/19 4:32 PM, Tom Stellard via cfe-dev wrote:
> Hi,
>
> I would like to start using GitHub Actions[1] for CI testing on the release/*
> branches.  As far as I know we don't have any buildbots listening to the
> release branches, and I think GitHub Actions are a good way for us to quickly
> bring-up some CI jobs there.
>
> My proposal is to start by adding two post-commit CI jobs to the release/9.x branch.
> One for building and testing (ninja checka-all) llvm/clang/lld on Linux,
> Windows, and Mac, and another for detecting ABI changes since the 9.0.0 release.
>
> I have already implemented these two CI jobs in my llvm-project fork on GitHub[2][3],
> but in order to get these running in the main repository, I would need to:
>
> 1. Create a new repository in the LLVM organization called 'actions' for storing some custom
> builds steps for our CI jobs (see [4]).
> 2. Commit yaml CI definitions to the .github/workflows directory in the release/9.x
> branch.
>
> In the future, I would also like to add buil and tests jobs for other sub-projects
> once I am able to get those working.
>
> In addition to being used for post-commit testing, having these CI definitions in the
> main tree will make it easier for me (or anyone) to do pre-commit testing for the
> release branch in a personal fork.  It will also allow me to experiment with some new
> workflows to help make managing the releases much easier.
>
> I think this will be a good way to test Actions in a low traffic environment to
> see if they are something we would want to use for CI on the master branch.
>
> Given that we are close to the end of the 9.0.1 cycle, unless there are any
> strong objections, I would like to get this enabled by Mon Nov 18, to maximize its
> usefulness.  Let me know what you think.
>
> Thanks,
> Tom
>
> [1] https://github.com/features/actions
> [2] https://github.com/tstellar/llvm-project/commit/952d80e8509ecc95797b2ddbf1af40abad2dcf4e/checks?check_suite_id=305765621
> [3] https://github.com/tstellar/llvm-project/commit/6d74f1b81632ef081dffa1e0c0434f47d4954423/checks?check_suite_id=303074176
> [4] https://github.com/tstellar/actions
>
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