Get CI testing working again and prevent future bit-rot #392

	name: CI

	on: [push, pull_request]

	jobs:
	build_and_test:
	runs-on: ${{ matrix.os }}
	timeout-minutes: 30
	strategy:
	fail-fast: false
	matrix:
	include:
	# Release builds.
	- os: ubuntu-20.04
	build_options: RELEASE=1

	# Debug builds.
	- os: ubuntu-20.04
	build_options:
	steps:
	- uses: actions/checkout@v2

	- name: Cache files
	uses: actions/cache@v2
	with:
	path: \|
	~/.cargo
	target
	build
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	restore-keys: ${{ runner.os }}-cargo-

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.9

	- name: Show toolchain versions
	run: \|
	rustup show
	rustup --version
	rustc --version
	cargo --version

	- name: Install cargo crates
	run: cargo install cargo-binutils@0.3.6 rustfilt@0.2.1

	- name: make check
	run: make check

	- name: Build Kerla
	run: make ${{ matrix.build_options }}

	- name: Lint
	run: make strict-lint

	- name: Install QEMU
	run: sudo apt-get update && sudo apt-get install -y qemu-system

	- name: Run unit tests
	run: make test ${{ matrix.build_options }}

	- name: Run integration tests
	run: >
	make run
	${{ matrix.build_options }}
	INIT_SCRIPT="TESTS_DIR=/integration_tests /integration_tests/run.sh; halt -f"
	DISABLE_AUTO_CR_PRINT=1
	\| tee run.log

	- name: Check if all integration tests are passed
	run: cat run.log \| grep "Passed all integration tests"

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