Add strip-dev as get_version argument

[dariocurr]

Hi, I'm @dariocurr and I am part of @buildnn.

We are trying to integrate setuptools-scm into our CI/CD, and it would be really helpful if we could use the strip-dev option through the python interface as well as from the CLI. That's why, with a few modifications, I made it possible.

I added some tests to make sure everything works as it should

[RonnyPfannschmidt]

Thanks for providing this as example,

This is possibly in conflict with future plans for overrides and adding tag creation tools

Unfortunately I'm currently stretched and may not be able to give this the time it deserves within the next 2 weeksz

[dariocurr]

First of all, thank you for your time and attention.

I understand what you are saying and I hear you, but IMHO, from an agnostic point of view and without any pretension, this should also be possible in the next release solutions, so why didn't you provide it now?

Barring breaking changes, get_version should remain the python interface, shouldn't it?
Then it will be the entry point for the user and it would be useful, even in the next release, to add a parameter to strip the version.

[RonnyPfannschmidt]

instead of a boolena behavior adding argument (which is sometimes a necessary stopgap for a cli tool,

this should either be a extra helper function one applies to the result of get-version or a version schema alltogether

i'll experiment a bit with configuration details, then get back

[RonnyPfannschmidt]

rejecting this, i should b a different function to do the change and/or a version scheme passed in

[dariocurr]

How and when do you plan to implement this option?

[RonnyPfannschmidt]

after #800 lands there wil be an example

right now, its really all about

in practice i recommen using

ver = packaging.version.Version("2.3.1.dev12")
clean = ver.base_version
assert clean == '2.3.1'