don't include gdb on aarch64-darwin #5

	on:
	#pull_request:

	name: Test the devtools nix files

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	devtools-test-linux:
	name: devtools-test-linux
	runs-on: [ubuntu-20.04]
	timeout-minutes: 120
	steps:
	- uses: actions/checkout@v3

	- name: Only run all steps if flake.lock or flake.nix changed
	id: checklock
	run: \|
	if git diff --name-only ${{ github.event.before }} ${{ github.sha }} \| grep 'flake'; then
	echo "A flake file was changed. Testing devtools nix files..."
	echo "::set-output name=changed::true"
	else
	echo "No flake file was changed. No need to run tests."
	echo "::set-output name=changed::false"
	fi

	- uses: cachix/install-nix-action@v23
	if: steps.checklock.outputs.changed == 'true'
	with:
	nix_path: nixpkgs=channel:nixos-unstable

	- name: test devtools/flake.nix
	if: steps.checklock.outputs.changed == 'true'
	id: devtools_test_step
	run: \|
	sed -i "s\|/home/username/gitrepos/roc\|$(realpath .)\|g" devtools/flake.nix
	cat devtools/flake.nix
	mkdir -p ../temp
	cp devtools/flake.nix ../temp
	cp devtools/flake.lock ../temp
	cd ../temp
	git init
	git add flake.nix flake.lock
	nix develop

	- name: Print tip on fail
	if: steps.devtools_test_step.outcome == 'failure'
	run: \|
	echo "The devtools test failed, this can likely be fixed by"
	echo "locally deleting devtools/flake.lock and following the"
	echo "instructions in devtools/README.md. This will create a"
	echo "new flake.lock you should use to replace the old devtools/flake.lock"

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