ci: use nix #213

	name: Test partial eval

	on:
	push:
	branches:
	- partial_eval
	pull_request:
	types: []
	workflow_dispatch:

	permissions:
	contents: read
	packages: read

	jobs:
	test:
	runs-on: ubuntu-latest
	defaults:
	run:
	# XXX using multi-line string will fail since \n is stuck to the end of the argument.
	shell: "nix develop github:katrinafyi/pac-nix#ocamlPackages_pac_4_09.asli --impure --accept-flake-config --command bash {0}"

	steps:
	- uses: actions/checkout@v4

	- uses: cachix/install-nix-action@v25
	- uses: cachix/cachix-action@v14
	with: { name: pac-nix }
	- run: echo 'preparing nix shell environment'

	# it will be nice to make this work, just in case we aslp adds new dependencies
	# - uses: ocaml/setup-ocaml@v2
	# with:
	# ocaml-compiler: ocaml-system.4.09.1 # must match nix develop's ocaml version!
	# - run: opam install . --deps-only --with-test

	- run: dune build --profile release
	- run: ./coverage.sh test
	id: coverage

	- name: Upload new coverage results
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: coverage-output-${{ github.run_id }}
	path: ${{ steps.coverage.outputs.OUTPUT }}

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