polybar: Handle multi monitor setup nicely

.config/polybar/config

@@ -10,7 +10,7 @@ secondary = #e60053
 alert = #bd2c40
 
 [bar/example]
-;monitor = ${env:MONITOR:HDMI-1}
+monitor = ${env:MONITOR:}
 width = 100%
 height = 15
 ;offset-x = 1%

.local/usr/bin/polybar.sh

@@ -7,6 +7,12 @@ killall -q polybar
 while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done
 
 # Launch Polybar, using default config location ~/.config/polybar/config
-polybar example &
+if type "xrandr"; then
+    for m in $(xrandr --query | grep " connected" | cut -d" " -f1); do
+        MONITOR=$m polybar --reload example &
+    done
+else
+    polybar --reload example &
+fi
 
 echo "Polybar launched..."