maint: add basic files #1610

	name: CI

	on: [push, pull_request]

	jobs:

	lint:

	runs-on: ubuntu-latest

	steps:

	- name: get repo
	uses: actions/checkout@v3

	- name: set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.12"

	- name: install dependencies
	run: \|
	pip install flake8 black isort docformatter

	- name: lint with flake8
	run: \|
	flake8

	- name: lint with black
	run: \|
	black --check .

	- name: lint with isort
	run: \|
	isort --check .

	- name: lint with docformatter
	run: \|
	docformatter --check .

	type-check:

	needs: lint

	runs-on: ubuntu-latest

	steps:

	- name: get repo
	uses: actions/checkout@v3

	- name: set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.12"

	- name: install package
	run: \|
	pip install .[img] mypy types-PyYAML

	- name: run mypy check
	run: mypy src

	unit-test:

	needs: type-check

	runs-on: ${{ matrix.os }}

	strategy:
	fail-fast: false
	matrix:
	os : [ubuntu-latest, windows-latest, macos-latest]
	python: ["3.8", "3.9", "3.10", "3.11", "3.12"]

	steps:

	- name: get repo
	uses: actions/checkout@v3

	- name: set up Python
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}

	- name: install package
	run: \|
	pip install .[test]

	- run: pytest

	doc:

	needs: unit-test

	runs-on: ubuntu-latest

	steps:

	- name: get repo
	uses: actions/checkout@v3

	- name: set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.12"

	- name: install package
	run: \|
	pip install .[doc] doc8

	- name: build document
	run: \|
	cd doc
	make html SPHINXOPTS="-W --keep-going"

	- name: lint with doc8 # doc8 test must be done after building doc once.
	run: \|
	doc8 .

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