Refactor HTML Empty Line Removal Step in github-actions-s3-publish.yml #2364

	name: Build and deploy Jekyll site
	on: [push]

	jobs:
	jekyll:
	name: Build and deploy Jekyll site
	runs-on: ubuntu-latest
	environment: main

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Build
	uses: jerryjvl/jekyll-build-action@v1

	- name: Remove empty lines from HTML
	run: \|
	find _site -name "*.html" -type f -exec python3 -c "
	import sys
	with open(sys.argv[1], 'r') as f:
	lines = [line for line in f if line.strip()]
	with open(sys.argv[1], 'w') as f:
	f.writelines(lines)
	" {} \;


	- name: Configure AWS credentials
	uses: aws-actions/configure-aws-credentials@v1
	with:
	aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
	aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
	aws-region: us-east-1

	# - name: Check HTML
	# uses: chabad360/htmlproofer@master
	# with:
	# # The directory to scan
	# directory: "./_site"
	# # The arguments to pass to HTMLProofer
	# arguments: --disable-external true --allow-hash-href true --file-ignore "/_site/old.math.virginia.edu/"

	- name: Sync output to S3
	run: \|
	aws s3 sync ./_site/ s3://math.virginia.edu --delete

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