Add Github Actions to deploy to staging.

Author: arkhi

.github/workflows/deploy-staging.yml

@@ -0,0 +1,31 @@
+name: Deploy Eleventy on staging via rsync
+
+on:
+  push:
+    branches: [staging]
+  pull_request:
+    branches: [staging]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      # Check-out the repository under $GITHUB_WORKSPACE.
+      - uses: actions/checkout@master
+
+      # Build the website with Eleventy.
+      - name: Building Eleventy…
+        run: npm i && npm run build
+
+      # Rsync files via SSH.
+      - name: Syncing files with server…
+        uses: burnett01/rsync-deployments@master
+        with:
+          switches: -rlD --delete --exclude='.htaccess'
+          path: _site/
+          remote_path: ${{ secrets.REMOTE_PATH_STAGING }}
+          remote_host: ${{ secrets.REMOTE_HOST }}
+          remote_port: ${{ secrets.REMOTE_PORT }}
+          remote_user: ${{ secrets.REMOTE_USER }}
+          remote_key: ${{ secrets.REMOTE_PRIVATE_KEY }}
+          remote_key_pass: ${{ secrets.REMOTE_PRIVATE_KEY_PASS }}