Publish Dated SNAPSHOTs

[jackkoenig]

The intent is that once these are being published, chisel3 can find the latest dated SNAPSHOT and then publish itself against it.

Contributor Checklist

• [NA] Did you add Scaladoc to every public function/method?
• Did you update the FIRRTL spec to include every new feature/behavior?
• Did you add at least one test demonstrating the PR?
• Did you delete any extraneous printlns/debugging code?
• Did you specify the type of improvement?
• Did you state the API impact?
• Did you specify the code generation impact?
• Did you request a desired merge strategy?
• Did you add text to be included in the Release Notes for this change?

Type of Improvement

• release automation

API Impact

No impact

Backend Code Generation Impact

No impact

Desired Merge Strategy

• Squash

Release Notes

Begin published dated SNAPSHOTs

Reviewer Checklist (only modified by reviewer)

• Did you add the appropriate labels?
• Did you mark the proper milestone (1.2.x, 1.3.0, 1.4.0) ?
• Did you review?
• Did you check whether all relevant Contributor checkboxes have been checked?
• Did you mark as Please Merge?

[jackkoenig]

It would be a lot better if the date were derived from the commit hash so that we don't have old commits pushing over today's date. I also think the BuildInfo should include the commit hash so that users can check this info.

[seldridge]

Can you use git describe --tag or some variation of this to get <latest-tag>-<new-commits>-g<git-hash> instead of the date?

[jackkoenig]

If we include the commit hash, it will publish a SNAPSHOT for every commit whereas I was trying to just have 1 per day. To keep the number of snapshots down we could instead put it on a "nightly" trigger, but that makes downstream projects more annoying to do because you want to make sure they publish their nightly SNAPSHOT after and upstream dependencies do. Just sticking with a dated one makes that a little bit simpler.

[seldridge]

Every commit can be useful as you are known to be pinned to something obvious. Nightly is annoying because it's a question of when (have to check the cron job to see when nightly is defined). FWIW: here are the commit hash snapshots for sifive/chisel-circt: https://oss.sonatype.org/content/repositories/snapshots/com/sifive/chisel-circt_2.13/ This has been useful in the past.