Prettier check now generates a diff comment on PR #53

	name: Prettier code formatter




	on:
	push:
	branches:
	- master
	- main
	pull_request:
	branches:
	- master
	- main
	workflow_dispatch:

	jobs:
	check:
	# available images: https://github.com/actions/runner-images#available-images
	runs-on: ubuntu-latest
	steps:
	- name: Checkout 🛎️
	uses: actions/checkout@v3
	- name: Setup Node.js ⚙️
	uses: actions/setup-node@v4
	- name: Install Prettier 💾
	run: npm install --save-dev --save-exact prettier @shopify/prettier-plugin-liquid
	- name: Prettier Check 🔎
	id: prettier
	run: npx prettier . --check
	- name: Show diff 📝
	# https://docs.github.com/en/actions/learn-github-actions/expressions#failure
	if: ${{ failure() }}
	run: \|
	npx prettier . --write
	git diff > diff.txt
	npm install -g diff2html-cli
	diff2html -i file -s side -F diff.html -- diff.txt
	echo "::set-output name=diff::$(cat diff.html)"
	- name: PR comment with file
	# https://docs.github.com/en/actions/learn-github-actions/expressions#failure-with-conditions
	if: ${{ failure() && steps.prettier.conclusion == 'failure' }}
	uses: thollander/actions-comment-pull-request@v2
	with:
	filePath: diff.html

Provide feedback