name: Doc

on:
  push:
    branches:
      - main

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

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Use OCaml ${{ matrix.ocaml-compiler }}
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: 5.1

      - name: Install locally
        run: opam install . --deps-only --with-doc

      - name: Build documentation
        run: opam exec -- dune build @doc

      - name: Set-up Pages
        uses: actions/configure-pages@v4

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v2
        with:
          path: _build/default/_doc/_html

      - name: Deploy odoc to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v3
