Signal when a kernel build comes from an uncommitted (dirty) kernel-builder version

[moon-bot-app]

Context

We want to make it clear to users when a build comes from a kernel-builder version that contains uncommitted changes, to improve reproducibility guarantees.

Proposal

Add the git commit SHA to the build metadata, along with a dirty bool. If dirty is set, we know that the kernel was built with uncommitted sources.

Suggested behavior when dirty is true:

1. At load time — Show warnings to the user when they're trying to load the kernel.
2. At upload time — Throw warnings when the builds are going to get uploaded to the Hub.
3. On the Hub repo — Show warnings on the corresponding Hub repo page.

References

From discussion by @sayakpaul and @danieldk.

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Created via Moon Bot for Sayak Paul (Slack U03AU4E7DJB) — Slack thread