Add sanity-check CI #4

	name: Check Liquidsoap scripts for correctness

	on:
	push:
	branches: [master]
	pull_request:
	branches: [master]

	jobs:
	check-liquidsoap:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	liquidsoap-version: ["1.4.3"]
	steps:
	- uses: actions/checkout@v4
	- name: Set up OCaml
	uses: ocaml/setup-ocaml@v2
	with:
	ocaml-compiler: "4.14.0"
	- name: Install Liquidsoap
	run: \|
	opam pin -y --no-action liquidsoap ${{ matrix.liquidsoap-version }}
	sudo apt update -y
	sudo opam depext -y ffmpeg opus bjack cry fdkaac gstreamer lame samplerate taglib ssl vorbis liquidsoap
	opam install -y ffmpeg opus bjack cry fdkaac gstreamer lame samplerate taglib ssl vorbis liquidsoap
	- name: Set up config files
	run: \|
	pushd conf
	for f in *.dist; do
	cp $f ${f%.dist}
	done
	popd
	- name: Check scripts
	run: \|
	set +e
	exit=0
	for f in *.liq; do
	liquidsoap --check $f
	exit=$((exit + $?))
	done
	# failures on 2.0 are allowed (for now)
	${{ startsWith(matrix.liquidsoap-version, '2') && 'exit 0' \|\| 'echo $exit' }}

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