In Github Actions, install master versions of Cluffer and Eclector #35

	name: publish-documentation

	on: [push]

	jobs:

	# Build documentation and create artifact
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Prepare runner
	run: \|
	DEBIAN_FRONTEND=noninteractive sudo apt-get -qq update \
	&& DEBIAN_FRONTEND=noninteractive sudo apt-get -qq --assume-yes install \
	sbcl texlive texlive-latex-extra librsvg2-bin

	- uses: actions/checkout@v1

	- name: Build documentation
	run: \|
	cd documentation
	make
	mkdir -p build build/{pdf,info}
	cp index.html build/
	cp *.png build/
	cp incrementalist.html build/
	cp incrementalist.pdf build/pdf/
	cp incrementalist.info build/info/

	- name: Create artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: documentation/build

	# Deploy to GitHub pages if main branch
	deploy:
	runs-on: ubuntu-latest
	needs: build
	if: github.ref == 'refs/heads/main'

	# Grant GITHUB_TOKEN the permissions required to make a Pages
	# deployment
	permissions:
	pages: write # to deploy to Pages
	id-token: write # to verify the deployment originates from an appropriate source

	# Deploy to the github-pages environment
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}

	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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