web_builds.yml

name: 🌐 Web Builds
on:
  push:
    branches: [ master, main ]

env:
  PROJECT_FOLDER: gdextension_cpp_example
  TARGET_PATH: demo/bin/
  TARGET_NAME: libgdexample
  SCONS_CACHE: ${{ github.workspace }}/.scons-cache/
  EM_VERSION: 3.1.39
  EM_CACHE_FOLDER: emsdk-cache
  GODOT_VERSION: 4.3
  EXPORT_NAME: gdextension_cpp_example/demo/

jobs:
  web-compilation:
    runs-on: "ubuntu-20.04"
    name: ${{ matrix.name }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: Web (wasm32) - Debug
            cache-name: web-wasm32
            target: template_debug
            artifact-extension: wasm
          - name: Web (wasm32) - Release
            cache-name: web-wasm32
            target: template_release
            artifact-extension: wasm
          - name: Web (wasm32, No Threads) - Debug
            cache-name: web-wasm32-nothreads
            target: template_debug
            artifact-extension: nothreads.wasm
            flags: threads=no
          - name: Web (wasm32, No Threads) - Release
            cache-name: web-wasm32-nothreads
            target: template_release
            artifact-extension: nothreads.wasm
            flags: threads=no

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
            lfs: true
            submodules: recursive

      - name: Restore Godot build cache
        uses: ./gdextension_cpp_example/godot-cpp/.github/actions/godot-cache-restore
        with:
          cache-name: ${{ matrix.cache-name }}-${{ matrix.target }}
        continue-on-error: true

      # Use python 3.x release (works cross platform)
      - name: Set up Python 3.x
        uses: actions/setup-python@v5
        with:
          # Semantic version range syntax or exact version of a Python version
          python-version: '3.x'
          # Optional - x64 or x86 architecture, defaults to x64
          architecture: 'x64'

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

      - name: Configuring Python packages
        run: |
          python -c "import sys; print(sys.version)"
          python -m pip install scons
          python --version
          scons --version

      - name: Compilation
        run: |
          mkdir -v -p ${{ env.PROJECT_FOLDER}}/${{ env.TARGET_PATH }}
          cd ${{ env.PROJECT_FOLDER }}
          scons platform=web target=${{ matrix.target }} target_path=${{ env.TARGET_PATH }} target_name=${{env.TARGET_NAME}} -j6 ${{ matrix.flags }}

      - name: Save Godot build cache
        uses: ./gdextension_cpp_example/godot-cpp/.github/actions/godot-cache-save
        with:
          cache-name: ${{ matrix.cache-name }}-${{ matrix.target }}
        continue-on-error: true

      - name: Upload Artifact
        env:
          ARTIFACT_FOLDER: ${{ env.PROJECT_FOLDER }}/${{ env.TARGET_PATH }}
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.cache-name }}-${{ matrix.target }}
          path: ${{ env.ARTIFACT_FOLDER }}*.${{ matrix.artifact-extension }}
          if-no-files-found: error

  web-deploy:
    name: Web Deploy
    runs-on: ubuntu-latest
    needs: [ web-compilation ]
    container:
      image: barichello/godot-ci:4.3 # Ideally this would be ${GODOT_VERSION}, but Github Actions doesn't allow this! :(

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          lfs: true

      - name: Download Artifacts
        uses: actions/download-artifact@v4

      - name: Copy Libraries to Project Folder
        run: |
          mkdir -v -p ${{env.PROJECT_FOLDER}}/${{env.TARGET_PATH}}
          cp --verbose web-wasm32-*/*.wasm ${{env.PROJECT_FOLDER}}/${{env.TARGET_PATH}}

      - name: Setup
        run: |
          mkdir -v -p ~/.local/share/godot/export_templates
          mv /root/.local/share/godot/export_templates/${GODOT_VERSION}.stable ~/.local/share/godot/export_templates/${GODOT_VERSION}.stable

      - name: Web Build
        run: |
          mkdir -v -p build/web
          cd $EXPORT_NAME
          godot --headless --verbose --export-release "Web" ../../build/web/index.html

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: web
          path: build/web

      # Installing rsync is needed in order to deploy to GitHub Pages. Without it, the build will fail.
      - name: Install rsync 📚
        run: |
          apt-get update && apt-get install -y rsync

      - name: Deploy to GitHub Pages 🚀
        uses: JamesIves/github-pages-deploy-action@releases/v4
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          BRANCH: gh-pages # The branch the action should deploy to.
          FOLDER: build/web # The folder the action should deploy.