Add web deployment to build.yml

.github/workflows/build.yml

@@ -13,7 +13,9 @@ env:
   VAR_PATH: .github/workflows/build_var.json
   SCONS_CACHE: ${{ github.workspace }}/.scons-cache/
   EM_VERSION: 3.1.64
-  EM_CACHE_FOLDER: "emsdk-cache"
+  EM_CACHE_FOLDER: emsdk-cache
+  GODOT_VERSION: 4.3
+  EXPORT_NAME: ./demo/
 
 jobs:
   matrix:
@@ -124,6 +126,56 @@ jobs:
           path: ${{ env.ARTIFACT_FOLDER }}*.${{ matrix.artifact-extension }}
           if-no-files-found: error
 
+  web-deploy:
+    name: Web Deploy
+    runs-on: ubuntu-latest
+    needs: [ build ]
+    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 Artefacts
+        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.
+
   release:
     name: Release
     runs-on: "ubuntu-20.04"