Add ruff #187

	name: Test package

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.7, 3.8, 3.9]

	steps:
	- uses: actions/checkout@master
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@master
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements_ci.txt

	- name: Test with ruff
	run: \|
	ruff check .
	ruff format --diff .

	- name: Test with mypy
	run: mypy -m aiohttp_retry

	- name: Test with pytest
	env:
	PYTHONPATH: .
	run: pytest --cov=./ --cov-report=xml --asyncio-mode=auto

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v1
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	files: ./coverage.xml
	flags: pytest
	env_vars: OS,PYTHON
	name: codecov-umbrella
	fail_ci_if_error: true
	verbose: true

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