Regressions and git bisect - an app for that?

[mate]

On Thursday, 13 February 2020 at 09:26:14 UTC, Walter Bright 
wrote:
> Speaking of git bisect, a lot of great work has been put into 
> automating things with the test suite, and extra things like 
> generating test profile coverage.
>
> It could be an ongoing nice timesaver if a tool could be added 
> to git that, for regressions, automatically figured out which 
> PR caused the breakage.

I think that digger, by Vladimir, does that:
https://github.com/CyberShadow/Digger