Add pull request CI #1

	on:
	push:
	branches:
	- main
	paths:
	- 'docs/**'

	jobs:
	build:
	name: Deploy doc
	runs-on: ubuntu-latest
	permissions:
	contents: write

	steps:
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.x"

	- uses: actions/checkout@v4
	with:
	lfs: 'true'

	- name: Install pip packages
	working-directory: docs
	run: \|
	pip install pip --upgrade
	pip install -r requirements.txt --upgrade

	- name: Build doc
	working-directory: docs
	run: \|
	make html

	- name: Commit
	run: \|
	author=$(git log -1 --pretty=format:'%an')
	email=$(git log -1 --pretty=format:'%ae')
	commit=$(git rev-parse --short HEAD)

	mkdir /tmp/doc
	rm -r docs/_build/html/_sources
	cp -r docs/_build/html/* /tmp/doc
	git stash --all
	git fetch origin gh-pages
	git checkout -b gh-pages origin/gh-pages
	git rm -r . --quiet
	cp -r /tmp/doc/* .
	touch .nojekyll
	git lfs uninstall

	git add . >> /dev/null
	git config --global user.name "$author"
	git config --global user.email "$email"
	git commit -m "deploy: $commit" --allow-empty

	- name: Push to gh-pages
	run: >-
	git push origin gh-pages:gh-pages

	- name: Clean-up
	run: >-
	rm -r /tmp/doc

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