GH#354 Updated dist/index.js build #12

	# `dist/index.js` is a special file in Actions.
	# When you reference an action with `uses:` in a workflow,
	# `index.js` is the code that will run.
	# For our project, we generate this file through a build process
	# from other source files.
	# We need to make sure the checked-in `index.js` actually matches what we expect it to be.
	name: Check dist

	on:
	push:
	branches:
	- main
	paths-ignore:
	- '**.md'
	pull_request:
	paths-ignore:
	- '**.md'
	workflow_dispatch:

	jobs:
	check-dist:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Set Node.js 20.x
	uses: actions/setup-node@v1
	with:
	node-version: 20.x

	- name: Install dependencies
	run: npm ci

	- name: Rebuild the index.js file
	run: npm run build

	- name: Compare the expected and actual dist/ directories
	run: \|
	if [ "$(git diff --ignore-space-at-eol dist/ \| wc -l)" -gt "0" ]; then
	echo "Detected uncommitted changes after build. See status below:"
	git diff
	exit 1
	fi

	# If dist/ was different than expected, upload the expected version as an artifact
	- uses: actions/upload-artifact@v2
	if: ${{ failure() && steps.diff.conclusion == 'failure' }}
	with:
	name: dist
	path: dist/

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