name: Documentation

on:
  push:
    tags:
      - "*"

env:
  CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules

permissions:
  contents: write


jobs:
  build:
    name: Build and publish documentation
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - uses: actions/cache@v3
        with:
          path: "**/cpm_modules"
          key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('**/CMakeLists.txt', '**/*.cmake') }}

      - name: Install python dependencies
        run: |
          pip3 install jinja2==3.1.6 Pygments==2.19.1

      - name: Install Doxygen
        uses: ssciwr/doxygen-install@v1
        with:
            version: "1.13.2"
      
      - name: Build
        run: |
          cmake -Sdocumentation -Bbuild
          cmake --build build --target GenerateDocs

      - name: Publish
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./build/doxygen/html