Add deployment action

.github/workflows/build-and-deploy-shinylive-r-app.yml

@@ -0,0 +1,53 @@
+on:
+    push:
+      branches: [main, master]
+    release:
+        types: [published]
+    workflow_dispatch: {}
+
+name: demo-r-shinylive-app
+
+jobs:
+    demo-website:
+      runs-on: ubuntu-latest
+      # Only restrict concurrency for non-PR jobs
+      concurrency:
+        group: r-shinylive-website-${{ github.event_name != 'pull_request' || github.run_id }}
+      permissions:
+        contents: read
+        pages: write
+        id-token: write
+      steps:
+        - name: "Check out repository"
+          uses: actions/checkout@v4
+
+        - name: "Setup R"
+          uses: r-lib/actions/setup-r@v2
+
+        # Pinned shinylive dependency
+        - name: "Setup R dependency for Shinylive App export"
+          uses: r-lib/actions/setup-r-dependencies@v2
+          with:
+            packages:
+              cran::[email protected]
+
+        # Export the current working directory as the shiny app
+        - name: Create Shinylive App from working directory files
+          shell: Rscript {0}
+          run: |
+           shinylive::export(".", "_site")
+
+        # Upload a tar file that will work with GitHub Pages
+        # Make sure to set a retention day to avoid running into a cap
+        # This artifact shouldn't be required after deployment onto pages was a success.
+        - name: Upload Pages artifact
+          uses: actions/upload-pages-artifact@v2
+          with: 
+            retention-days: 1
+
+        # Use an Action deploy to push the artifact onto GitHub Pages
+        # This requires the `Action` tab being structured to allow for deployment
+        # instead of using `docs/` or the `gh-pages` branch of the repository
+        - name: Deploy to GitHub Pages
+          id: deployment
+          uses: actions/deploy-pages@v2