name: format

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  format:
    name: format
    strategy:
      matrix:
        ocaml-compiler:
            - '5.3'
    runs-on: 'ubuntu-latest'
    steps:
      - uses: actions/checkout@main
      - name: Use OCaml ${{ matrix.ocaml-compiler }}
        uses: ocaml/setup-ocaml@v3
        with:
          ocaml-compiler: ${{ matrix.ocaml-compiler }}
          dune-cache: true
          allow-prerelease-opam: true

      - run: opam install ocamlformat.0.27.0
      - run: opam exec -- make format-check