Move to Ruby 3 #21

	name: Build & Publish

	on:
	push:
	branches:
	- main
	pull_request: {}

	jobs:
	build-validate:
	env:
	# ruby/setup-ruby@v1 does not offer a way to change the cached gems path.
	# See https://github.com/ruby/setup-ruby/issues/291
	GLOBAL_GEMS: 1
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	cache-version: 3

	- name: Build & Validate
	run: rake validate

	- name: Upload Pages artifact
	uses: actions/upload-pages-artifact@v3

	deploy:
	name: Deploy to GitHub Pages
	runs-on: ubuntu-latest
	needs: build-validate
	if: ${{ github.ref == 'refs/heads/main' }}

	# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
	# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
	concurrency:
	group: "pages"
	cancel-in-progress: false

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	environment:
	name: github-pages
	# Tell GitHub where we deployed to
	url: ${{ steps.deployment.outputs.page_url }}

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

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