1. Migrated from the stock GitHub Actions yaml syntax to using this custom
action[1] that allows us to skip the running of jobs based on path filtering.
The difference compared to the old solution is that this one won't just
skip the checks that are marked as required but it will pass them instead.
2. This is a suboptimal solution because we have to run each job so that
the code can be checked out and then examined for changes. This uses
resources that we should not have to expend, but currently there's no way
to avoid this because of the way the GitHub handles required checks that
are skipped (which cause a deadlock on the CI at the currently).
3. There is a relevant discussion thread about the problem here [2] which
should be voted on heavily so that it gets the necessary attention from
the product teams at GitHub.
Quoting the relevant part of the GitHub documentation directly:
> Handling skipped but required checks
> Warning: If a workflow is skipped due to path filtering, branch
> filtering or a commit message, then checks associated with that workflow
> will remain in a "Pending" state. A pull request that requires those
> checks to be successful will be blocked from merging.
>
> For this reason you should not use path or branch filtering to skip
> workflow runs if the workflow is required. For more information, see
> "Skipping workflow runs" and "Required workflows."
>
> If, however, a job within a workflow is skipped due to a conditional,
> it will report its status as "Success". For more information, see
> "Using conditions to control job execution."
**Source** (link broken into multiple lines to avoid it being longer than
100 characters):
https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/
collaborating-on-repositories-with-code-quality-features/
troubleshooting-required-status-checks#handling-skipped-but-required-checks
[1] https://github.com/dorny/paths-filter
[2] https://github.com/orgs/community/discussions/44490
Signed-off-by: Peter Somogyvari <[email protected]>
Signed-off-by: Sandeep Nishad <[email protected]>