CI workflow for Pull Requests

[zharinov]

This will enable branch-level tests that are performed under 5 minutes.

Included tests:

• lein test
• Uberjar test
• Native binary test (linux-only)

I've selected these tests because they seem comprehensive enough to me, so that you can be 95% confident it's ready for the release.

The entire CI workflow can be quite a big, so let's implement it with the smaller steps. This is the first one.

Ref: #248

[kkinnear]

So, If I create a PR myself, and the tests fail, what's next? Do I cancel (drop or whatever) that PR and create a new PR from scratch with the better code, or do I edit the PR and then the tests automatically run again when the PR changes?

[zharinov]

No, you just push code fix commits to the same branch and tests will re-run. It's very convenient to use "Squash and merge" method which will make single commit in the base branch with the commit message matching the PR title.

[kkinnear]

Thanks for the info, I tried out the workflow with my own PR #260 and it seems to work great! Note that I also changed the default branch from master to main while I was at it. I have updated the workflow so it matches main.

[kkinnear]

This is really great work! I used it for the first time (other than the test I did above), and it worked out really well. I even managed to recover the zprintl-1.2.5 and bring it local and run some additional testing on it just to be sure, and it worked flawlessly! I may need to send the intermediate linux zprintl-1.2.5 to someone to fix a serious bug before I'm ready to release the whole thing.

It seems like if I just leave a PR open from the branch on which I'm working, then every time I push that branch to GitHub I'll gets tests, and when it is the "final" push, I'll accept the PR into main and then pull main back down to my local repo for some final work.

Anyway, this is already starting to change the way I work, and I want to thank you for all of the effort you put into make all of this happen. It is very impressive, and I'm not sure I would have ever taken the time to figure out how to do it all. Thank you so much!

[arichiardi]

Wanted to add, thanks for doing this!