Adding gsw-xarray

[rcaneill]

Checklist

• Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated meta.yaml".
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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/gsw-xarray) and found it was in an excellent condition.

[rcaneill]

It is asked in the checklist, @DocOtak could you comment here that you agree to be maintainer of the recipe (if you agree of course :p)

[DocOtak]

I agree and am willing to be listed here.

[rcaneill]

Hello @conda-forge/help-python, I checked on the doc but did not found how I should do to create the recipe for a package that uses poetry as package manager.
I guess I shoud add poetry-core>=1.0.0 somewhere? But where?
Thanks for your help!

[rcaneill]

Hello @conda-forge/help-python, ready for review

We still have a qeustion: Is the --use-deprecated=out-of-tree-build necessary? In the pip doc it seems that it will be removed in pip version 22.1 (https://pip.pypa.io/en/latest/topics/local-project-installs/#build-artifacts)

[carterbox]

Yes, this is the current recommendation for packages that use poetry for build until conda-build is patched. I believe that without this arg, poetry will try and create its own build environment which is not what we want / is redundant.

Related: conda-forge/conda-forge.github.io#1540

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipes/gsw-xarray) and found some lint.

Here's what I've got...

For recipes/gsw-xarray:

• license_file entry is missing, but is required.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/gsw-xarray) and found it was in an excellent condition.

[rcaneill]

Thanks for your answer regarding poetry