avoid UnboundLocalError for config_link.changed if enabled is False

pyinfra_nginx/nginx.py

@@ -13,6 +13,8 @@ def _install_nginx():
     if not host.get_fact(DebPackages):
         raise DeployError(("Can't deploy prerequisites on non-deb system"))
 
+    apt.update(cache_time=3600 * 24)
+
     apt.packages(
         name = "Install nginx-extras",
         packages = ["nginx-extras"],
@@ -33,15 +35,14 @@ def add_nginx_domain(domain: str, config_path: str, enabled=True):
 
     deploy_acmetool(nginx_hook=True, domains=[domain])
 
-    config = files.put(
-        src=config_path,
-        dest=f"/etc/nginx/sites-available/{domain}",
-        user="root",
-        group="root",
-        mode="644",
-    )
-
     if enabled:
+        config = files.put(
+            src=config_path,
+            dest=f"/etc/nginx/sites-available/{domain}",
+            user="root",
+            group="root",
+            mode="644",
+        )
         config_link = files.link(
             path=f"/etc/nginx/sites-enabled/{domain}",
             target=f"/etc/nginx/sites-available/{domain}",
@@ -49,9 +50,8 @@ def add_nginx_domain(domain: str, config_path: str, enabled=True):
             group="root",
             present=enabled,
         )
-
-    if config.changed or config_link.changed:
-        need_restart = True
+        if config.changed or config_link.changed:
+            need_restart = True
 
     systemd.service(
         name="NGINX should be enabled and running",