fix: try GitHub Actions without support for Python 3.7 #5

	name: CI

	on:
	push:
	branches:
	- '*'
	tags:
	- '*'
	# Empty pull request argument means "all pull-requests"
	pull_request:

	jobs:
	# 1. linters
	check-lint:
	strategy:
	matrix:
	include:
	- name: flake8
	tox-env: flake8
	- name: pyupgrade
	tox-env: pyupgrade

	name: Check ${{ matrix.name }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.x
	- name: Install dependencies
	run: \|
	set -xeu
	python --version
	pip install tox
	- name: Check ${{ matrix.name }}
	run: tox -e ${{ matrix.tox-env }}

	# 2. Unit tests
	tests:
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: [3.8, 3.9, '3.10', 3.11]
	include:
	- python-version: 3.8
	tox-env: py38
	- python-version: 3.9
	tox-env: py39
	- python-version: '3.10'
	tox-env: py310
	- python-version: 3.11
	tox-env: py311

	name: Test (python ${{ matrix.python-version }}/${{ matrix.os }})
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Cache pip
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('setup.cfg') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Install dependencies
	run: \|
	python --version
	pip install tox coverage
	- name: Run tox targets for ${{ matrix.python-version }}
	run: tox -e ${{ matrix.tox-env }}

	report-status:
	name: success
	runs-on: ubuntu-latest
	needs:
	- check-lint
	- tests
	steps:
	- name: Report success
	run: echo 'Success !'

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