Rename functions/variables to reflect current usage

The name of the file that the current pane is logging to is stored in
the variable, so name it (and the helper functions) accordingly.

scripts/toggle_logging.sh

@@ -10,31 +10,30 @@ start_pipe_pane() {
 	local file=$(expand_tmux_format_path "${logging_full_filename}")
 	"$CURRENT_DIR/start_logging.sh" "${file}"
 	display_message "Started logging to ${file}"
-	set_logging_variable "${file}"
+	set_active_logging_filename "${file}"
 }
 
 stop_pipe_pane() {
 	tmux pipe-pane
-	display_message "Ended logging to $(get_logging_variable)"
-	unset_logging_variable
+	display_message "Ended logging to $(get_active_logging_filename)"
+	unset_active_logging_filename
 }
 
-# saving 'logging' 'not logging' status in a variable unique to pane
-set_logging_variable() {
-	tmux set-option -pq @logging-variable "$1"
+set_active_logging_filename() {
+	tmux set-option -pq @active-logging-filename "$1"
 }
 
-unset_logging_variable() {
-	tmux set-option -pu @logging-variable
+unset_active_logging_filename() {
+	tmux set-option -pu @active-logging-filename
 }
 
-get_logging_variable() {
-	tmux show-option -pqv @logging-variable
+get_active_logging_filename() {
+	tmux show-option -pqv @active-logging-filename
 }
 
 # this function checks if logging is happening for the current pane
 is_logging() {
-	if [ -n "$(get_logging_variable)" ]; then
+	if [ -n "$(get_active_logging_filename)" ]; then
 		return 0
 	else
 		return 1