Add custom confval directive/role #54

	name: Linters

	on: [pull_request]

	jobs:
	mypy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Install
	run: \|
	python3 -m pip install mypy types-PyYAML
	- name: Add matcher
	run: \|
	echo "::add-matcher::.github/workflows/mypy-problem-matcher.json"
	- name: Run mypy
	run: \|
	python3 -m mypy --ignore-missing-imports --exclude doc .

	flake8:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Install
	run: \|
	python3 -m pip install flake8
	- name: Add matcher
	run: \|
	echo "::add-matcher::.github/workflows/flake8-problem-matcher.json"
	- name: Lint with flake8
	run: \|
	python3 -m flake8 .

	black:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	- uses: psf/black@stable

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