Bump actions/checkout from 3 to 4 #88

	on: [push, pull_request]

	name: Continuous integration

	# Stops the running workflow of previous pushes
	concurrency:
	group: ${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build-and-test:
	name: Build and test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable
	- beta
	- nightly
	- 1.71 # MSRV

	steps:
	- uses: actions/checkout@v4

	- name: Install SDL2
	run: \|
	sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu `lsb_release -sc` main universe restricted multiverse"
	sudo apt-get update -y -qq
	sudo apt-get install libsdl2-dev

	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: ${{ matrix.rust }}
	override: true

	- uses: actions-rs/cargo@v1
	with:
	command: build

	- name: Run tests with --no-default-features
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --no-default-features

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

	lints-and-checks:
	name: Lints and checks
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true
	profile: minimal
	components: rust-docs, rustfmt, clippy

	- name: Rustfmt lints
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

	- name: Clippy lints
	uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --no-deps -- -D warnings

	- name: Build docs with --all-features
	uses: actions-rs/cargo@v1
	env:
	RUSTDOCFLAGS: -D warnings --cfg docsrs
	with:
	command: doc
	args: --no-deps --all-features

Provide feedback