Coupler CI

[rem1776]

Description Adds a second job to test compilation of the coupler with PRs.

This will fail until https://github.com/NOAA-GFDL/FMScoupler/pull/75 goes in.

How Has This Been Tested? Tested on my forks

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] Any dependent changes have been merged and published in downstream modules
• [x] New check tests, if applicable, are included
• [x] make distcheck passes

[underwoo]

@rem1776 is there a way to run/trigger the coupler tests with a PR to main in FMS?

[rem1776]

@rem1776 is there a way to run/trigger the coupler tests with a PR to main in FMS?

It can potentially be enabled for PR's too, but since the coupler tests are running in a different repo the status cannot be checked from the FMS site. To get past that the coupler CI will create an issue if it fails from an FMS trigger which I figured shouldn't happen for PR's, so that's why it ended up being just main pushes.

[rem1776]

I'm gonna simplify this and just add the coupler build test to the FMS CI and run on PRs after the normal testing suite.

[thomas-robinson]

We can add model tests on parallel works too if that would help, but those also require more resources.

[thomas-robinson]

I don't think this worked like you hoped it would. FMS got cloned/checked out. Then coupler was cloned and then:

Run t/null_model_build.sh
  t/null_model_build.sh
  shell: sh -e {0}
Cloning into 'mkmf'...
Cloning into '/__w/FMS/FMS/t/null.O0meQo/src/FMS'...

It looks like it got it's own clone of FMS main https://github.com/NOAA-GFDL/FMScoupler/blob/c12af876d4baef20346db8391422b6b6df209c75/t/null_model_build.sh#L26-L27

[rem1776]

@thomas-robinson I'll put another PR in for the coupler have the test script take a SHA to checkout as an optional argument. I'll probably try to see if I can get it actually running as well instead of just compiling.