Test that image layers and compose volumes are getting cached #7

	name: CI

	on:
	push:
	pull_request:
	branches: [main]

	jobs:
	setup-and-cache:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: docker/setup-buildx-action@v3
	- uses: docker/setup-compose-action@v1
	- uses: ./
	with:
	volumes: \|
	node_modules: ${{ hashFiles('package-lock.json') }}
	- run: bin/setup

	test:
	needs: setup-and-cache
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: docker/setup-buildx-action@v3
	- uses: docker/setup-compose-action@v1
	- uses: ./
	with:
	volumes: \|
	node_modules: ${{ hashFiles('package-lock.json') }}
	- name: Verify caches are used
	run: \|
	output=$(bin/setup 2>&1)
	echo "$output"
	if echo "$output" \| grep -q "exporting to docker image format"; then
	echo "::error::Image was rebuilt instead of using cache"
	exit 1
	fi
	if echo "$output" \| grep -q "added"; then
	echo "::error::Packages were downloaded instead of using cached node_modules"
	exit 1
	fi

Provide feedback