Packaging: Introduce `versioningit`

[amotl]

Proposal

Use versioningit.

Details

GH-931 already added versioningit to the Dockerfiles. I recently started using it on one or two projects, and I love it.

References

• mqtt-tools/mqttwarn@8bfb3fb3a; examples for <program> --version invocations at Rework versioning based on Git tags, and modernize Docker configuration mqtt-tools/mqttwarn#620

Originally posted by @amotl in #931 (comment)

[gutzbenj]

Dear @amotl ,

it doesn't look like it supports poetry at this moment, so we#d have to go with https://github.com/mtkennerly/poetry-dynamic-versioning / https://github.com/mtkennerly/dunamai .

Or would this be the right moment to totally switch to either one of hatch / pdm?

[amotl]

Thanks for the research. If we want to keep a lock file, we can have a look at Hatch or PDM. Also, there is another candidate by Armin Ronacher, only recently released. Or, if we don't necessarily need a lock file, we can also think about going back to native setuptools, as it excellently supports pyproject.toml-based projects today, which wasn't the case when Wetterdienst was started, I believe.

[gutzbenj]

Dear @amotl , I'd still go with hatch or pdm because they have functionalities for creating a venv OOTB. hatch doesn't currently support lock files however it is a tool developed by PyPA which should not be underestimated regarding support that splits upon those tools atm.