Avoid redundant CI work by only building main and pull requests #205

	name: Render templates

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	build:
	name: Generate content
	runs-on: ubuntu-latest
	steps:
	- name: Checkout sources
	uses: actions/checkout@v4

	- name: Set up Python 3.11
	uses: actions/setup-python@v4
	with:
	python-version: 3.11

	- name: Install dependencies
	run: bash ./scripts/setup.sh

	- uses: actions/setup-node@v3
	with:
	node-version: '18'

	- name: Install
	run: yarn install

	- name: Build newsletters
	run: bash ./scripts/render-all.sh

	- name: Upload output for deployment
	uses: actions/upload-pages-artifact@v2
	with:
	path: out/html

	deploy:
	name: Deploy to GitHub Pages
	runs-on: ubuntu-latest
	needs: build
	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: Checkout sources
	uses: actions/checkout@v4

	- name: Setup Pages
	uses: actions/configure-pages@v3

	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v2

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