Graphic design updates #184

	name: "Rebuild and deploy PR version of book to gh-pages branch in pull###/ folder"
	on:
	pull_request:
	types: [opened, synchronize]
	paths:
	- 'source/**'
	- 'Dockerfile'
	branches:
	- 'main'
	jobs:
	deploy-pr-preview:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	packages: write
	pull-requests: write

	steps:
	- name: Wait for potential build environment update
	uses: fountainhead/[email protected]
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	checkName: "Rebuild docker image"
	ref: ${{ github.event.pull_request.head.sha }}
	timeoutSeconds: 60000

	- name: Checkout the repo
	uses: actions/checkout@v2
	with:
	fetch-depth: '0'
	ref: ${{ github.head_ref }}

	- name: Build the book
	run: \|
	./build_html.sh

	# Push the book's HTML to github-pages
	- name: GitHub Pages action
	uses: peaceiris/[email protected]
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: source/_build/html
	keep_files: true
	destination_dir: pull${{ github.event.number }}
	# force_orphan: true # once peaceiris updates to v4, change this to true and keep_files: true for the PR / main branch deploy previews

	- name: Post URLS to PR thread
	uses: mshick/[email protected]
	with:
	message: \|
	Hello! I've built a preview of your PR so that you can compare it to the current `main` branch.
	* PR deploy preview available [here](https://python.datasciencebook.ca/pull${{ github.event.number }}/index.html)
	* Current `main` deploy preview available [here](https://python.datasciencebook.ca/dev/index.html)
	* Public production build available [here](https://python.datasciencebook.ca)

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