Checks #50

	name: Checks

	on:
	push:
	branches: ["*"]
	pull_request:
	branches: ["main"]
	merge_group:
	workflow_run:
	workflows: ["Update rust-overlay"]
	types:
	- completed

	concurrency:
	group: ${{ github.ref }}
	cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

	permissions:
	contents: read

	jobs:
	check:
	runs-on: ubuntu-latest
	env:
	TARGET_BRANCH: ${{ github.ref }}

	strategy:
	matrix:
	rust:
	- base
	- stable
	- beta
	- nightly

	steps:
	- name: Switch to rust-overlay branch if triggered by update
	if: ${{ github.event_name == 'workflow_run' }}
	run: echo "TARGET_BRANCH=rust-overlay" >> $GITHUB_ENV

	- uses: actions/checkout@v4
	with:
	ref: ${{ env.TARGET_BRANCH }}

	- uses: cachix/install-nix-action@v27
	with:
	nix_path: nixpkgs=channel:nixos-unstable

	- uses: DeterminateSystems/magic-nix-cache-action@v6

	- name: Run checks
	run: nix build .#checks.x86_64-linux.${{ matrix.rust }}

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