Update build system to use Meson #171

	name: cysignals-flake8

	on:
	pull_request:
	types: [opened, synchronize]
	push:
	tags:
	- '*'

	jobs:
	build:
	runs-on: [ubuntu-latest]
	steps:
	- name: Set up the repository
	uses: actions/checkout@v2
	with:
	submodules: recursive
	fetch-depth: 0
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install setuptools Cython Sphinx flake8
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 src --count --select=E9,F63,F7,F82 --show-source --statistics
	# The GitHub editor is 127 chars wide
	flake8 src --count --max-line-length=127 --ignore=E265 --statistics

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