[CDash] GitHub Status API support

[Cristian Morales Vega]

On Wed, 20 Feb 2019 at 19:42, Zack Galbreath <zack.galbreath at kitware.com> wrote:
> This works by commenting on your pull request whenever something goes wrong (build error, test failure, etc). But as you indicated, rather than commenting on a PR, it would be better to have CDash post a status to the commit on GitHub with a link back to itself. The biggest barrier to this goal was the fact that CDash didn't actually ever know when a build was done. So we could only ever post bad news (this is what went wrong), not good news (everything passed, hurray). There was no mechanism in place for CTest to say "Okay CDash, that's the last file I'm going to send you for this build". CTest and CDash finally gained this capability as of CMake v3.14 (currently in the release candidate cycle).
>
> So now that CDash can actually know when a build is done, we need to teach CDash to use GitHub's status API. This is implemented in CDash PR #748. I've already reviewed these changes and they look good to me. I still need to find the time to test it out & make sure the GitHub status gets updated as expected. Once I do that I'll merge this change into CDash, and our goal of linking back to CDash from the commit status on GitHub will finally be achieved.

That's great! I had not though about the lack of "done".

For the time being... my Jenkins actually does know when it has
finished. If I could retrieve the CDash buildid when doing
ctest_submit() I could store/show it somewhere. There is any way to do
this?