Remove Versioneer

[nutjob4life]

@MJJoyce and @nutjob4life have been struggling over the last 2⅗ weeks with Python Versioneer and we keep running into issues (from mysterious git hashes when there shouldn't be any, to inconsistent handling of annotated/non-annotated tags, to puzzling out the unseen magic that goes into determining a version, to developing one-too-many workarounds in the Roundup Action and pds-github-util just to accommodate Versioneer).

There are some endemic issues to Versioneer as well, including:

• Python 3.6 is the last officially supported Python, but we have standardized on Python 3.9.
• Features like being able to override the version (essential for a Roundup stable release) was requested over two years ago but remains open.
• It still cannot comprehend the now-ubiquitous main branch, using hard-coded master branch to check for divergence.

Other users are running into these as well—@collinss-jpl in particular, where the pds-doi-service has served as the poster case for all that can go wrong with Versioneer.

One famous maxim from Python development (import this) reads:

Explicit is better than implicit.

Versioneer has made things so implicit that we find ourselves at a loss to explain its behavior—and worse, to correct it. We feel we've surpassed the point of diminishing returns with Versioneer and now recommend its excision—with prejudice—from the PDS codebase. Here's something that, perhaps, Maven has done right: just put the version number in pom.xml explicitly where people know how to find it!

This ticket will serve as an epic for the removal from other repositories that the Versioneer has infected.

[MJJoyce]

+1000000000000

[jordanpadams]

@MJJoyce @nutjob4life where do we think we are at on this Epic? looks like we did this for pds-doi-service and the template repo, are there other repos that are using versioneer that we need to change?

[nutjob4life]

@jordanpadams looks like one last repository still gots the versioneer stank on it: archive-analytics

[MJJoyce]

Note, this is good to close out once NASA-PDS/archive-analytics#20 is closed

[nutjob4life]

FYI a pull request that closes NASA-PDS/archive-analytics#20 awaits review. If it gets merged, it'll close that issue, which means we can close this issue! 😅

[MJJoyce]

Last PR has been merged covering this. Closing it out!