Add pre-commit config and lint files #34

	on:
	push:
	pull_request:

	jobs:
	build:

	runs-on: ubuntu-latest

	strategy:
	# all supported django version on lowest/highest supported python
	# see https://www.djangoproject.com/download/#supported-versions
	# and https://docs.djangoproject.com/en/4.2/faq/install/#what-python-version-can-i-use-with-django
	matrix:
	include:
	- { django: "4.2", python: "3.8" }
	- { django: "4.2", python: "3.12" }
	- { django: "5.0", python: "3.10" }
	- { django: "5.0", python: "3.12" }
	- { django: "5.1", python: "3.10" }
	- { django: "5.1", python: "3.12" }
	fail-fast: false

	steps:
	- uses: actions/checkout@v3

	- uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}

	- name: Install test deps
	run: pip install flake8 tox

	- name: Install library
	run: pip install -e .

	- name: Lint
	run: flake8 --ignore=E501

	- name: Run tests
	working-directory: example
	run: \|
	PYTHON_VERSION=`echo ${{ matrix.python }} \| sed 's/\.//'`
	DJANGO_VERSION=`echo ${{ matrix.django }} \| sed 's/\.//'`
	tox -e python${PYTHON_VERSION}-django${DJANGO_VERSION}

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