From 340a71056c769168f831e55f3421c51babe36f5b Mon Sep 17 00:00:00 2001
From: Andrei Murariu <83287213+iamxorum@users.noreply.github.com>
Date: Fri, 23 Jan 2026 03:40:13 +0200
Subject: [PATCH] bug-fix: `mo uninstall` unbound variable on empty tuples
 (#352)

This happens when no third party app is available to be uninstalled; this triggers an `unbound variable` on the app_data_tuple causing the utility to fail.

This is caused mostly because the bash version is 3.2 on MacOS; it seems that since Bash 4 this unbound_variable is set to 0 and would have not went to that error.

Added an alternative value in case of error of 0 for this topic. This should handle this corner case
---
 bin/uninstall.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/bin/uninstall.sh b/bin/uninstall.sh
index 389e222..2f83bc5 100755
--- a/bin/uninstall.sh
+++ b/bin/uninstall.sh
@@ -137,9 +137,15 @@ scan_applications() {
         done < <(command find "$app_dir" -name "*.app" -maxdepth 3 -print0 2> /dev/null)
     done
 
+    if [[ ${#app_data_tuples[@]:-0} -eq 0 ]]; then
+        rm -f "$temp_file"
+        printf "\r\033[K" >&2
+        echo "No applications found to uninstall." >&2
+        return 1
+    fi
     # Pass 2: metadata + size in parallel (mdls is slow).
     local app_count=0
-    local total_apps=${#app_data_tuples[@]}
+    local total_apps=${#app_data_tuples[@]:-0}
     local max_parallel
     max_parallel=$(get_optimal_parallel_jobs "io")
     if [[ $max_parallel -lt 8 ]]; then