Implement staging deployment with firebase

.firebaserc

@@ -0,0 +1,5 @@
+{
+  "projects": {
+    "default": "pankona-blog"
+  }
+}

.github/workflows/generate_site_and_deploy.yaml

@@ -7,12 +7,6 @@ on:
       - main
   pull_request:
 
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
 # Default to bash
 defaults:
   run:
@@ -56,7 +50,39 @@ jobs:
         uses: actions/upload-pages-artifact@v3
         with:
           path: ./public
-  deploy:
+
+  deploy-staging:
+    permissions:
+      checks: write
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    needs: build
+    if: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download build assets
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh run download --repo '${{ github.repository }}'
+      - name: Extract the downloaded artifact
+        run: |
+          mkdir public
+          tar -xf ./github-pages/artifact.tar -C public
+          tree ./public
+      - uses: FirebaseExtended/action-hosting-deploy@v0
+        with:
+          repoToken: ${{ secrets.GITHUB_TOKEN }}
+          firebaseServiceAccount: ${{ secrets.FIREBASE_SERVICE_ACCOUNT_PANKONA_BLOG }}
+          projectId: pankona-blog
+
+  deploy-production:
+    # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
     # 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:

firebase.json

@@ -0,0 +1,10 @@
+{
+  "hosting": {
+    "public": "public",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ]
+  }
+}

flake.nix

@@ -42,6 +42,8 @@
               go_1_23
               dart-sass
 
+              firebase-tools
+
               markdownlint-cli2
 
               yaml-language-server