Enable more { os X compiler } checks in the CI #1

	# This workflow file is named 'more-ci' and is used to run additional CI checks
	# that complement the main CI workflow. It ensures that our code is tested
	# across multiple operating systems and OCaml compiler versions.
	#
	# Compared to the main 'ci.yml' job, this skips some steps that are not
	# necessary to check for every combination of os and ocaml-compiler, such as
	# generating coverage report, linting odoc, opam and fmt, etc.
	#
	# We prefer to keep it separate from the main CI workflow because we find it
	# more readable, over having too many conditional steps in the same job.

	name: more-ci

	on:
	- pull_request
	- push

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	os:
	- macos-latest
	- ubuntu-latest
	- windows-latest
	ocaml-compiler:
	- 5.2.x
	exclude:
	# We exclude the combination already tested in the 'ci' workflow.
	- os: ubuntu-latest
	ocaml-compiler: 5.2.x

	runs-on: ${{ matrix.os }}

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Setup OCaml
	uses: ocaml/setup-ocaml@v3
	with:
	ocaml-compiler: ${{ matrix.ocaml-compiler }}
	opam-repositories: \|
	default: https://github.com/ocaml/opam-repository.git
	mbarbin: https://github.com/mbarbin/opam-repository.git
	# janestreet-bleeding: https://github.com/janestreet/opam-repository.git
	# janestreet-bleeding-external: https://github.com/janestreet/opam-repository.git#external-packages

	- name: Install dependencies
	run: opam install . --deps-only --with-test

	- name: Build & Run tests
	run: opam exec -- dune build @all @runtest

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