style(ocaml): Apply the overlay using extend for simplification #57

	name: Check ocaml

	on:
	push:
	paths:
	# Set this to the directory of the template
	- ocaml/**
	- .github/workflows/check-ocaml.yml
	workflow_dispatch:
	workflow_call:

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

	jobs:
	check:
	runs-on: ubuntu-latest
	steps:
	- uses: cachix/install-nix-action@v30
	with:
	extra_nix_config: \|
	access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
	flake-registry = https://raw.githubusercontent.com/akirak/flake-pins/master/registry.json

	- uses: cachix/cachix-action@v15
	with:
	name: akirak
	authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
	pushFilter: '-source$'

	- uses: actions/checkout@v4
	with:
	path: ./tmp

	- name: Initialize a Dune project
	run: \|
	nix run nixpkgs#dune_3 -- init project hello work

	- name: Use the template
	run: \|
	nix flake new -t ./tmp#ocaml work

	- name: Prepare the project
	working-directory: work
	run: \|
	sed -i 's/throw "Name your OCaml package"/"hello"/' flake.nix
	sed -i 's/throw "Version your OCaml package"/"0.1"/' flake.nix
	git init
	git add .

	- name: Check executables
	run: \|
	nix develop -L --command ocamlc --version
	working-directory: work

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