Add git tag (git describe --tags) to the environment

[graup]

Hi! At the moment, the exposed git related environment variables do not contain any info about tags. (docs)

I propose adding VERCEL_GIT_TAG with the value of git describe --tags.

This would make my build workflow much easier. We're using the tag to define the release version for Sentry etc.

This was also mentioned here but I thought I'd open a new issue for better visibility.

[Pieparker]

Hey there, we've moved this issue from the Vercel CLI Discussion to the Vercel Community Discussions as a feature suggestion. Thank you!

[srosato]

Could you provide the link to that discussion please?

[graup]

It's this discussion. They're saying they moved it here :)

[srosato]

Oops my bad 😂

[HesselTjeerdsma]

Would like to +1 as well, would be very useful for us to do so directly from Vercel!

[andrealettieri80]

We really need this!! +1 :)

[Exelord]

We need it too <3

[eclipse313]

Is also desperately needed by me. I want to query the current day to be able to display it in my Vue project.

[Burry]

Same use-case here, would like to use tags to generate a semver build ID used across our monitoring tools. And right now that requires weird hacks if you want to deploy with Vercel