build: scaffold development environment using tox #3

	name: "Packaging."

	on: [pull_request]

	jobs:
	packaging:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	python-version: ["3.12"]
	os: [ubuntu-latest]
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

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

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install tox

	- name: Create temporary version tag
	run: \|
	if [ -z "$(git tag)" ]; then
	git config user.name "GitHub Actions"
	git config user.email "actions@github.com"
	git tag -a v0.0.0 -m "temporary tag"
	fi

	- name: Run packaging test
	run: \|
	tox -e packaging

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