lvgl/.github/workflows/compile_docs.yml

name: Build Docs
on:
  push:
    branches:
      - master
      - 'release/*'
    paths:
      - 'docs/**'
      - 'src/**'
      - 'examples/**'
      - 'demos/**'
      - 'configs/ci/docs/**'
      - 'scripts/build_html_examples.sh'
      - 'scripts/find_version.sh'
      - 'lv_conf_template.h'
      - 'lv_version.h'
      - 'lvgl.h'

# https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#concurrency
# Ensure that only one commit will be running tests at a time on each PR
concurrency:
  group: ${{ github.ref }}-${{ github.workflow }}
  cancel-in-progress: true

env:
  EM_VERSION: 2.0.4
  EM_CACHE_FOLDER: 'emsdk-cache'

jobs:
  build-and-deploy:
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          persist-credentials: false
          fetch-depth: 0

      - name: Setup Emscripten cache
        id: cache-system-libraries
        uses: actions/cache@v5
        with:
          path: ${{env.EM_CACHE_FOLDER}}
          key: ${{env.EM_VERSION}}-${{ runner.os }}

      - uses: mymindstorm/setup-emsdk@v14
        with:
          version: ${{env.EM_VERSION}}
          actions-cache-folder: ${{env.EM_CACHE_FOLDER}}

      - name: ccache
        uses: hendrikmuhs/ccache-action@v1

      - name: Build examples (with cache)
        run: |
          # Grab the current name in case the LVGL folder is not called lvgl
          # as it could be the case if this is running from a fork
          LVGL_FOLDER=$(pwd)
          # Move to the parent folder to fetch emscripten port.
          cd ..
          ./lvgl/scripts/build_html_examples.sh --symlink $LVGL_FOLDER

      - name: Install Doxygen
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends doxygen

      # Parses the source code and generates XML files from the documentation
      - name: Generate Doxygen XML
        run: |
            cd docs
            doxygen

      # Tool used to convert Doxygen XML to .mdx API pages
      - name: Install doxymark 
        if: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release/')) }}
        run: |
          npm install github:mutahharmkhan/doxymark

      # Generate Documentation API pages 
      - name: Generate API pages
        if: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release/')) }}
        run: |
            npx doxymark \
               --input docs/doxygen/xml
               --output docs/api
               --index docs/api-index.json
               --preset fumadocs 
               --auto-group
               --source-url https://github.com/lvgl/lvgl/tree/${{ github.sha }}/src
            rm -rf docs/doxygen

      - name: Install Example Documentation
        run: npm i @lvgl/examples-generator

      - name: Check Example Documentation
        run: |
            npx -p @lvgl/examples-generator lvgl-examples-check-about --src examples
            npx -p @lvgl/examples-generator lvgl-examples-check-examples --src examples

      - name: Generate Example Documentation
        if: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release/')) }}
        run: |
            npx -p @lvgl/examples-generator lvgl-examples-gen \
            --src examples \
            --out docs/examples

      - name: Retrieve version
        id: version
        run: |
          echo "VERSION_NAME=$(scripts/find_version.sh)" >> "$GITHUB_OUTPUT"

      - name: Deploy to subfolder
        if: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release/')) }}
        uses: JamesIves/github-pages-deploy-action@v4.8.0
        with:
          token: ${{ secrets.LVGL_BOT_TOKEN }}
          repository-name: lvgl/open-docs
          branch: gh-pages # The branch the action should deploy to.
          folder: docs  # The folder the action should deploy.
          target-folder: ${{ steps.version.outputs.VERSION_NAME }} # needs to match what is inside `docs/version_list.json`
          git-config-name: lvgl-bot
          git-config-email: lvgl-bot@users.noreply.github.com
          commit: true

      - name: Deploy to master
        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
        uses: JamesIves/github-pages-deploy-action@v4.8.0
        with:
          token: ${{ secrets.LVGL_BOT_TOKEN }}
          repository-name: lvgl/open-docs
          branch: gh-pages # The branch the action should deploy to.
          folder: docs  # The folder the action should deploy.
          target-folder: latest # needs to match what is inside `docs/version_list.json`
          git-config-name: lvgl-bot
          git-config-email: lvgl-bot@users.noreply.github.com
          commit: true