CI: run ruff lint and format check #103

	name: tests

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	tests:
	strategy:
	fail-fast: true
	matrix:
	python-version: ["3.10", "3.11", "3.12"]
	os: [ubuntu-latest]

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

	steps:

	- name: checkout
	uses: actions/checkout@v4

	- name: pysetup
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: install
	run: \|
	pip install -e ".[test,dask,dev]"

	# We run this for each Python version in the matrix which is redundant,
	# but since ruff is fast, that's OK. We like to make sure that we install
	# the ruff version from pyproject.toml, which we achieve by
	#
	# pip install -e ".[dev]"
	#
	# Doing this in another workflow such as lint.yml would install psweep +
	# all deps again just for linting.
	#
	# The alternative would be to say
	#
	# pip install ruff==<version>
	#
	# but then we duplicate version information, which has to be maintained.
	- name: lint
	run: \|
	# Check for lint rules.
	ruff check .
	# Check if files need to be formatted. Exit non-zero if the case.
	ruff format --check .

	- name: run tests
	run: \|
	# CI runners have no configured git. Need that for git support tests.
	git config --global user.name "Gaylord Focker"
	git config --global user.email "[email protected]"

	# Run parallel tests (-n flag). Detect all $(pwd)/tests/test_*.py
	pytest -n4

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