Publish GitHub pages #1748

	run-name: Publish GitHub pages
	name: publish-pages

	on:
	push:
	paths: [ "**" ]
	pull_request:

	env:
	IMAGE_REPO: doldecomp/melee

	permissions:
	contents: read
	pages: write
	id-token: write

	concurrency:
	group: "pages"
	cancel-in-progress: false

	jobs:
	gen-pages:
	name: Generate pages
	runs-on: ubuntu-latest
	env:
	REGISTRY: ghcr.io
	OUTPUT: ${{github.workspace}}/output
	steps:
	- name: Get image name
	env:
	IMAGE_SUFFIX: gen-pages:latest
	run: \|
	echo "IMAGE=$IMAGE_REPO/$IMAGE_SUFFIX" >> $GITHUB_ENV

	- name: Checkout Melee repository
	uses: actions/checkout@v3

	- name: Set up GitHub Pages
	uses: actions/configure-pages@v4

	- name: Log into container registry
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Pull generator image
	run: docker pull ${{ env.REGISTRY }}/${{ env.IMAGE }}

	- name: Generate pages
	run: \|
	mkdir -p "${{ env.OUTPUT }}"
	docker run --rm \
	--user "$(id -u):$(id -g)" \
	--volume "$PWD:/input:ro" \
	--volume "${{ env.OUTPUT }}:/output" \
	${{ env.REGISTRY }}/${{ env.IMAGE }}

	- name: Upload GitHub Pages artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: ${{ env.OUTPUT }}

	deploy-pages:
	name: Deploy to GitHub Pages
	runs-on: ubuntu-latest
	needs: gen-pages
	if: github.ref_name == github.event.repository.default_branch
	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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