Tweak updater script

scripts/gitea/update-repo.sh

@@ -4,17 +4,15 @@ set -exou pipefail
 TEMP_DIR=$(mktemp -d "repo-updater.XXXX" -p $XDG_RUNTIME_DIR)
 pushd $TEMP_DIR
 
-git clone "$1" repo
-pushd repo
-git switch $2
-
-./update.sh
-
-git add -A
-if git commit -m "Update flake/dependencies"; then
-    git push -u origin $2
+if git clone "$1" repo && pushd repo && git switch $2 && ./update.sh; then
+    git add -A
+    if git commit S -m "Update flake/dependencies"; then
+        git push -u origin $2
+    else
+        echo "No changes made"
+    fi
 else
-    echo "No changes made"
+    echo "Update failed"
 fi
 
 popd