real latest install

lib/self-upgrade.bash

@@ -53,10 +53,12 @@ function perform_upgrade {
   sudo mv "$MIAOU_BASH_DIR" "$backup"
   curl -s --output /tmp/miaou-bash-install.sh "$INSTALL_URL"
 
+  # if "$backup"/install.sh upgraded; then
   # shellcheck disable=SC1091
   if source /tmp/miaou-bash-install.sh upgrade; then
-    # if "$backup"/install.sh upgraded; then
-    sudo mv "$backup"/hooks.d/* "$MIAOU_BASH_DIR/hooks.d/"
+    if [[ $(find "$backup"/hooks.d -maxdepth 1 -type f | wc -l) -gt 0 ]]; then
+      sudo mv "$backup"/hooks.d/* "$MIAOU_BASH_DIR"/hooks.d/
+    fi
     sudo rm -rf "$backup"
     cat <<EOF
 To reset this session, you can run: