doxygen.yml

# This action builds **AND DEPLOYS** Doxygen documentation to GitHub Pages
# Doxygen site is DEPLOYED if this action is triggered by publishing a release.
# Doxygen site is NOT DEPLOYED (only built) when triggered by pull request or dispatched. 
name: C++ Docs

on:
  release:
    types: ["published"]
  pull_request:
    branches: ["main", "dev"]
  push:
    branches: ["main", "dev"]
  workflow_dispatch:

# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
concurrency:
  group: "pages"
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
        - name: Checkout repository
          uses: actions/checkout@v4

        - name: Clone doxygen-awesome-css submodule
          run: |
            git submodule init extern/doxygen-awesome-css
            git submodule update

        - name: Install Doxygen
          uses: ssciwr/doxygen-install@v1
          with:
            version: "1.12.0"

        - name: Setup GitHub Pages
          if: ${{ github.event_name == 'release' }}
          id: pages
          uses: actions/configure-pages@v5

        - name: Install CMake
          uses: lukka/get-cmake@latest

        - name: Build documentation with Doxygen
          uses: lukka/run-cmake@v10
          with:
            configurePreset: docsOnly
            buildPreset: docsOnly
          
        - name: Upload GitHub Pages artifact
          uses: actions/upload-pages-artifact@v3
          if: ${{ github.event_name == 'release' }}
          with:
            path: ./docs/html/

  deploy:
    if: ${{ github.event_name == 'release' }}
    needs: build
    permissions:
      contents: read
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4