Hierarchy #94

	name: CI

	on:
	push:
	pull_request:
	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:
	jobs:
	main:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Use Node.js 15
	uses: actions/setup-node@v1
	with:
	node-version: 15
	# Re-use node_modules between runs until package-lock.json changes.
	- name: Cache node_modules
	id: cache-node_modules
	uses: actions/cache@v2
	with:
	path: node_modules
	key: node_modules-${{ hashFiles('package-lock.json') }}

	# Re-use ~/.elm between runs until elm.json, elm-tooling.json or
	# review/elm.json changes. The Elm compiler saves downloaded Elm packages
	# to ~/.elm, and elm-tooling saves downloaded tool executables there.
	- name: Cache ~/.elm
	uses: actions/cache@v2
	with:
	path: ~/.elm
	key: elm-${{ hashFiles('elm.json') }}

	# Install npm packages, unless we restored them from cache.
	# Since `npm ci` removes the node_modules folder before running it’s
	# important to skip this step if cache was restored.
	- name: npm ci
	if: steps.cache-node_modules.outputs.cache-hit != 'true'
	run: npm ci
	- name: Tests
	run: npm test
	- name: elm-format
	run: npm run validate-format

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