From 30734e201058f09e54de857e715d9afb6d095f37 Mon Sep 17 00:00:00 2001
From: meliurwen <meliurwen@gmail.com>
Date: Sat, 5 Mar 2022 08:24:38 +0100
Subject: [PATCH] Reduced hanging possibilities due to `bluetoothctl` in
 Polybar bluetooth script, making it check if kernel module is loaded and a BT
 card is plugged

---
 polybar/.config/polybar/scripts/bluetooth.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/polybar/.config/polybar/scripts/bluetooth.sh b/polybar/.config/polybar/scripts/bluetooth.sh
index 5c90b6e..45ef0ca 100755
--- a/polybar/.config/polybar/scripts/bluetooth.sh
+++ b/polybar/.config/polybar/scripts/bluetooth.sh
@@ -1,6 +1,17 @@
 #!/bin/sh
 # Usage: ./bluetooth.sh [--toggle]
 
+set -e
+
+# If the folder doesn't exist (kernel module not loaded) or it's empty, exit
+if [ ! -d /sys/class/bluetooth ]; then
+    exit 1
+elif [ -z "$(ls -A /sys/class/bluetooth)" ]; then
+    exit 1
+else
+    :
+fi
+
 case $1 in
     "")
         bt_color=""