v0.17.3 - Updated the way Gunicorn restarts the server

app.py

@@ -28,7 +28,7 @@ app.config['PERMANENT_SESSION_LIFETIME'] = timedelta(hours=1)
 
 
 # 1. Define the version
-APP_VERSION = '0.17.2'  # Bumped version for modular architecture
+APP_VERSION = '0.17.3'  # Bumped version for modular architecture
 
 # 2. Inject it into all templates automatically
 @app.context_processor
@@ -206,34 +206,34 @@ def deactivate_module(module_key):
 @app.route('/admin/restart', methods=['POST'])
 @login_required
 def restart_server():
-    """Restart the Flask server"""
     if session.get('role') not in ['owner', 'admin']:
         return jsonify({'success': False, 'message': 'Access denied'}), 403
     
-    import os
-    import sys
-    
     try:
-        print("\n🔄 Server restart requested by admin...")
+        import signal
+        import os
+        import sys
         
-        # Return response first
-        response = jsonify({'success': True, 'message': 'Server restarting...'})
-        
-        # Schedule restart after response is sent
-        def restart():
-            import time
-            time.sleep(0.5)  # Give time for response to send
+        # Check if running under Gunicorn
+        if 'gunicorn' in os.environ.get('SERVER_SOFTWARE', ''):
+            # Gunicorn: Send HUP to master for graceful reload
+            master_pid = os.getppid()
+            os.kill(master_pid, signal.SIGHUP)
+            return jsonify({'success': True, 'message': 'Server reloading...'})
+        else:
+            # Flask dev server: Restart process
+            def restart():
+                import time
+                time.sleep(0.5)
+                if os.name == 'nt':  # Windows
+                    os.execv(sys.executable, ['python'] + sys.argv)
+                else:  # Linux/Mac
+                    os.execv(sys.executable, [sys.executable] + sys.argv)
+            
+            from threading import Thread
+            Thread(target=restart).start()
+            return jsonify({'success': True, 'message': 'Server restarting...'})
             
-            if os.name == 'nt':  # Windows
-                os.execv(sys.executable, ['python'] + sys.argv)
-            else:  # Linux/Mac
-                os.execv(sys.executable, [sys.executable] + sys.argv)
-        
-        from threading import Thread
-        Thread(target=restart).start()
-        
-        return response
-        
     except Exception as e:
         return jsonify({'success': False, 'message': f'Restart failed: {str(e)}'})