Merge-queue-CI-Flow #37

	name: Merge-queue-CI-Flow

	on:
	merge_group:
	types:
	- checks_requested

	env:
	CI: 1
	RUSTFLAGS: "-D warnings -C link-arg=-fuse-ld=lld"
	EXTRA_RUST_TOOLCHAINS: nightly-2024-04-29

	jobs:
	code_style:
	runs-on: starkware-ubuntu-20-04-medium
	steps:
	# Environment setup.
	- uses: actions/checkout@v4

	# Setup pypy and link to the location expected by .cargo/config.toml.
	- uses: actions/setup-python@v5
	id: setup-pypy
	with:
	python-version: "pypy3.9"
	- run: ln -s '${{ steps.setup-pypy.outputs.python-path }}' /usr/local/bin/pypy3.9
	- env:
	LD_LIBRARY_PATH: ${{ steps.setup-pypy.outputs.pythonLocation }}/bin
	run: echo "LD_LIBRARY_PATH=${LD_LIBRARY_PATH}" >> $GITHUB_ENV

	# Install rust components.
	- uses: ./.github/actions/bootstrap
	with:
	extra_rust_toolchains: ${{ env.EXTRA_RUST_TOOLCHAINS }}

	- name: Setup Python venv
	run: \|
	python3 -m venv ci
	ci/bin/pip install -r scripts/requirements.txt

	# Check Cargo.lock is up to date.
	- name: "Check Cargo.lock"
	run: \|
	cargo update -w --locked
	git diff --exit-code Cargo.lock

	- name: "Run clippy on merge queue"
	run: ci/bin/python scripts/run_tests.py --command clippy

	- name: "Run rustfmt on merge queue"
	# The nightly here is coupled with the one in install_rust/action.yml.
	# If we move the install here we can use a const.
	run: cargo +"$EXTRA_RUST_TOOLCHAINS" fmt --all -- --check

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