Tweak upgrade script

flake.lock

@@ -117,11 +117,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1711915616,
-        "narHash": "sha256-co6LoFA+j6BZEeJNSR8nZ4oOort5qYPskjrDHBaJgmo=",
+        "lastModified": 1712016346,
+        "narHash": "sha256-O2nO7pD+krq+4HgkLB4VThRtAucIPfXDs/jJqCGlK1w=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "820be197ccf3adaad9a8856ef255c13b6cc561a6",
+        "rev": "4be0464472675212654dedf3e021bd5f1d58b92f",
         "type": "github"
       },
       "original": {

hosts/common/nixos-upgrade.sh

@@ -26,10 +26,11 @@ while [[ $# -gt 0 ]]; do
 			;;
 		-h|--help)
 			usage
-			shift
+			exit
 			;;
 		*)
-			break
+			echo "Unknown argument $1"
+			exit 1
 			;;
 	esac
 done
@@ -39,9 +40,11 @@ echo "Using installation mode: $OPERATION"
 cd ~/Development/nix-configuration
 nix flake update
 nixos-rebuild build --flake .
-echo "Updates to apply:"
-nix store diff-closures /run/current-system ./result | awk '/[0-9] →|→ [0-9]/ && !/nixos/' || echo
+UPDATES=$(nix store diff-closures /run/current-system ./result | awk '/[0-9] →|→ [0-9]/ && !/nixos/' || echo)
 
+if [ $UPDATES ]; then
+	echo "NixOS updates to apply: "
+	echo $UPDATES
 	if [ $AUTOACCEPT == false ]; then
 		read -p "Continue with upgrade (y/n) ? " choice
 		case "$choice" in 
@@ -50,8 +53,10 @@ if [ $AUTOACCEPT == false ]; then
 			* ) echo "Invalid option. Upgrade cancelled." && exit;;
 		esac
 	fi
-
 	sudo nixos-rebuild $OPERATION --flake .
+else
+	echo "No NixOS updates found."
+fi
 
 echo "Updating Flatpaks:"
 flatpak update