Refactor pairwise haversine function. #452

	# Runs formatting, linting, and unit tests on any push to main or a pull request.

	# Useful docs:
	# https://docs.astral.sh/uv/guides/integration/github/
	# https://docs.astral.sh/ruff/integrations/#github-actions

	name: Code quality checks
	on:
	pull_request:
	push:
	branches: ['main']

	jobs:
	code-quality:
	name: Code quality checks
	runs-on: ubuntu-latest
	steps:
	- name: Check out code
	uses: actions/checkout@v4

	- name: Install uv
	uses: astral-sh/setup-uv@v4
	with:
	enable-cache: true
	version: "0.5.x"

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version-file: ".python-version"

	- name: Install dependencies
	run: uv sync --frozen --all-extras --dev

	- name: Check imports and formatting
	run: uv run ruff check --no-fix --exclude doc/devlog --output-format=github .

	- name: Check data package exports
	run: uv run scripts/data_exports.py --check

	- name: Run unit tests
	run: uv run python -m unittest discover -v -s "./epymorph" -p "*_test.py"

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