add a separate workflow to test langs in parallel #1

	name: Build/Test CI

	on: [push, pull_request]

	jobs:
	build-and-test:
	# We want to run on external PRs, but not on our own internal PRs as they'll be run
	# by the push to the branch. Without this if check, checks are duplicated since
	# internal PRs match both the push and pull_request events.
	if:
	github.event_name == 'push' \|\| github.event.pull_request.head.repo.full_name !=
	github.repository

	runs-on: ${{ matrix.os }}

	defaults:
	run:
	shell: bash -l {0}

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest]
	python-version: ["3.10", "3.11", "3.12"]
	language: ["c", "cxx", "python", "fortran"]

	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true

	- uses: conda-incubator/setup-miniconda@v2
	with:
	auto-update-conda: true
	python-version: ${{ matrix.python-version }}
	mamba-version: "*"
	channels: conda-forge
	channel-priority: true

	- name: Install dependencies
	run: python -m pip install nox tomli

	- name: Install compilers
	run: mamba install c-compiler cxx-compiler fortran-compiler cmake

	- name: Run the language tests
	run: nox -s "test-langs-${{ matrix.python-version }}(lang='${{ matrix.language }}')" --python ${{ matrix.python-version }} --verbose

	- name: Coveralls
	if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.9'
	uses: AndreMiras/coveralls-python-action@v20201129

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