name: Deploy odoc to GitHub Pages

on:
  push:
    branches:
      - master

permissions: read-all

concurrency:
  group: deploy-odoc
  cancel-in-progress: true

jobs:
  deploy-odoc:
    name: Deploy odoc to GitHub Pages

    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    permissions:
      contents: read
      id-token: write
      pages: write

    runs-on: ubuntu-latest

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

      - name: Set-up OCaml
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: "5.1"

      - name: Build mpfr from sources
        run: |
          wget --no-check-certificate https://www.mpfr.org/mpfr-4.2.1/mpfr-4.2.1.tar.gz
          tar xvzf mpfr-4.2.1.tar.gz
          mkdir build-mpfr
          pushd build-mpfr
          ../mpfr-4.2.1/configure
          make -j8
          sudo make install
          popd

      - name: Install dependencies
        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
