infra: Add upload-artifact step when building docs #227

	name: Build and deploy documentation

	on:
	push:
	branches:
	- 'main'
	- 'beta'
	- 'release'
	pull_request:

	env:
	WORKFLOWS_DIR: .github/workflows
	DOCS_DIR: docs

	jobs:
	docs:
	name: Build and deploy documentation
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0 # fetches tags, required for version info
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.9
	- name: Build lambeq
	run: pip install .
	- name: Install documentation dependencies
	run: \|
	sudo apt-get install graphviz pandoc
	pip install -r docs/requirements.txt
	- name: Draw diagrams from PlantUML files
	uses: Timmy/plantuml-action@v1
	with:
	args: '-v -DPLANTUML_LIMIT_SIZE=8192 -tpng ${{ env.DOCS_DIR }}/puml/*.puml -o img'
	- name: Build documentation
	run: ${{ env.WORKFLOWS_DIR }}/build-docs
	- name: Save documentation as artifact
	uses: actions/upload-artifact@v4
	with:
	name: docs_html
	path: docs/_build/html
	- name: Deploy documentation
	if: ${{ github.event_name == 'push' && (github.ref_name == 'main' \|\| github.ref_name == 'release') }}
	uses: s0/git-publish-subdir-action@develop
	env:
	REPO: self
	BRANCH: docs
	FOLDER: docs/_build/html/
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	CLEAR_GLOBS_FILE: ${{ env.WORKFLOWS_DIR }}/clear-target-files

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