cleanup #130

	name: CI

	on:
	push:
	branches: "*"
	pull_request:
	branches: "*"

	jobs:
	# Run "pre-commit run --all-files"
	pre-commit:
	runs-on: ubuntu-20.04
	timeout-minutes: 2

	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.8

	# ref: https://github.com/pre-commit/action
	- uses: pre-commit/action@v2.0.0
	- name: Help message if pre-commit fail
	if: ${{ failure() }}
	run: \|
	echo "You can install pre-commit hooks to automatically run formatting"
	echo "on each commit with:"
	echo " pre-commit install"
	echo "or you can run by hand on staged files with"
	echo " pre-commit run"
	echo "or after-the-fact on already committed files with"
	echo " pre-commit run --all-files"

	build-n-test-n-coverage:
	name: Build, test and code coverage
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: [3.7, 3.8, 3.9]
	env:
	OS: ${{ matrix.os }}
	PYTHON: "3.9"

	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	pip install --upgrade setuptools pip
	pip install --upgrade --upgrade-strategy eager --pre -e .[test] pytest-cov codecov 'coverage<5'
	pip freeze
	- name: Run the tests
	run: py.test --cov jupyter_client -v jupyter_client
	- name: Code coverage
	run: codecov

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