build.yml

name: CI Workflow

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        os:
          - ubuntu-latest
        ocaml-compiler:
          - 4.04.x
          - 4.14.1

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

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Use OCaml ${{ matrix.ocaml-compiler }}
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: ${{ matrix.ocaml-compiler }}

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

      - name: Build
        run: opam exec -- dune build --verbose

      - name: Test
        run: opam exec -- dune runtest --verbose

      - name: Coverage
        if: ${{ matrix.ocaml-compiler == '4.14.1' }}
        env:
          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
          PULL_REQUEST_NUMBER: ${{ github.event.number }}
        run: |
          opam exec -- dune runtest --instrument-with bisect_ppx --force
          opam exec -- bisect-ppx-report summary
          opam exec -- bisect-ppx-report send-to Coveralls