use cargo chef to leverage docker cache #16

	name: CI

	on: [push, pull_request]

	env:
	IMAGE_NAME: sandbox
	CARGO_TERM_COLOR: always

	jobs:
	check:
	name: Lint & Test
	runs-on: ubuntu-latest
	steps:
	- name: Checkout sources
	uses: actions/checkout@v4

	- name: Install stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	override: true

	- name: Caching
	uses: Swatinem/rust-cache@v2

	- name: Run rustfmt
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: -- --check

	- name: Run clippy
	uses: actions-rs/cargo@v1
	with:
	command: clippy

	- name: Run tests
	uses: actions-rs/cargo@v1
	with:
	command: test

	push-image:
	name: Push Image
	runs-on: ubuntu-latest
	needs: check
	if: github.ref == 'refs/heads/master'
	steps:
	- uses: actions/checkout@v4
	- name: Build image
	run: docker build . --file Dockerfile --tag $IMAGE_NAME
	- name: Log into registry
	run: echo ${{ secrets.PACKAGES_ACCESS_TOKEN }} \| docker login ghcr.io -u $GITHUB_ACTOR --password-stdin
	- name: Push image
	run: \|
	IMAGE_ID=ghcr.io/${{ github.repository }}
	# Change all uppercase to lowercase
	IMAGE_ID=$(echo $IMAGE_ID \| tr '[A-Z]' '[a-z]')
	# Strip git ref prefix from version
	VERSION=$(echo "${{ github.ref }}" \| sed -e 's,./$.$,\1,')
	# Strip "v" prefix from tag name
	[[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION \| sed -e 's/^v//')
	# Use Docker `latest` tag convention
	[ "$VERSION" == "master" ] && VERSION=latest
	echo IMAGE_ID=$IMAGE_ID
	echo VERSION=$VERSION
	docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
	docker push $IMAGE_ID:$VERSION

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