This would permit the user to see exactly what lines failed to lint via GitHub Checks.
I was really excited after seeing the announcement that CircleCI finally supports the GitHub checks API: https://circleci.com/blog/see-the-status-of-your-circleci-workflows-in-github/
I've been eagerly awaiting this since GitHub announced the Checks API in May:
In that GitHub blog post, as well as in the following help article and API docs, they describe how GitHub Checks can provide annotations for individual lines of code (e.g. for violations found by the linter):
Unfortunately, CircleCI's integration with the GitHub Checks API doesn't currently support this. This is the GitHub Check API feature that I've been most looking forward to, because it will allow us to see things like lint failures without having to leave GitHub to scroll through a specific CircleCI job's log.
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