Simplify get/set logging variable

Use a pane option variable, and remove unnecessary script variables.

Author: Phil Hindman

scripts/toggle_logging.sh

@@ -17,22 +17,13 @@ stop_pipe_pane() {
 	display_message "Ended logging to $logging_full_filename"
 }
 
-# returns a string unique to current pane
-pane_unique_id() {
-	tmux display-message -p "#{session_name}_#{window_index}_#{pane_index}"
-}
-
 # saving 'logging' 'not logging' status in a variable unique to pane
 set_logging_variable() {
-	local value="$1"
-	local pane_unique_id="$(pane_unique_id)"
-	tmux set-option -gq "@${pane_unique_id}" "$value"
+	tmux set-option -pq @logging-variable "$1"
 }
 
 get_logging_variable() {
-	local pane_unique_id="$(pane_unique_id)"
-	local current_pane_logging="$(get_tmux_option "@${pane_unique_id}" "not logging")"
-	echo $current_pane_logging
+	tmux show-option -pqv @logging-variable
 }
 
 # this function checks if logging is happening for the current pane