setup-meta-modules: error on failure

[AlexanderRichert-NOAA]

Is your feature request related to a problem?

Currently, if setup-meta-modules doesn't match any compilers, it will quietly fail (no .lua files generated) without an error.

Describe the solution you'd like

There are a few ways to handle this, but probably the easiest and most foolproof would be a check at the very end that ensures that at least one directory starting with 'stack-' exists under $SPACK_ENV/modules/. And/or put a counter next to the modulefile write functions and assert that we hit that code at least once.

[climbfuji]

@AlexanderRichert-NOAA I will look into this now, need to fix two bugs in the script related to the recently-added aliases anyway.

[climbfuji]

@AlexanderRichert-NOAA I am having trouble reproducing this with the feature/update_to_spack_v1 branch. I get these errors when I try to create a compiler mismatch:

================================================================= short test summary info ==================================================================
FAILED tests/test_setup_meta_modules.py::test_setup_meta_modules_error - Exception: Invalid value for packages:all:prefer is ['%gcc@=13.4.0', '%gcc']
======================================================== 1 failed, 53 passed, 11 warnings in 54.21s ========================================================

[AlexanderRichert-NOAA]

I've run into that when there's an all:prefer:... both in common and site packages config. The easiest solution was to take it out of the site packages.yaml (or packages_gcc-x.y.z.yaml or whatever).

[climbfuji]

I've run into that when there's an all:prefer:... both in common and site packages config. The easiest solution was to take it out of the site packages.yaml (or packages_gcc-x.y.z.yaml or whatever).

Hmm. Tried that, still getting

==> Error: Invalid value for packages:all:prefer is ['%oneapi', '%gcc']

but please take a look at cd1f14f and let me know if that solves the issue you have seen. Thanks!

[climbfuji]

Closed via #1817