Restrict tmux and desktop tools to Void hosts

dotfiles/desktop/.tmux/plugins/tmux-continuum/scripts/helpers.sh

@@ -0,0 +1,49 @@
+get_tmux_option() {
+	local option="$1"
+	local default_value="$2"
+	local option_value=$(tmux show-option -gqv "$option")
+	if [ -z "$option_value" ]; then
+		echo "$default_value"
+	else
+		echo "$option_value"
+	fi
+}
+
+set_tmux_option() {
+	local option="$1"
+	local value="$2"
+	tmux set-option -gq "$option" "$value"
+}
+
+# multiple tmux server detection helpers
+
+current_tmux_server_pid() {
+	echo "$TMUX" |
+		cut -f2 -d","
+}
+
+all_tmux_processes() {
+	# ignores `tmux source-file .tmux.conf` command used to reload tmux.conf
+	local user_id=$(id -u)
+	ps -u $user_id -o "command pid" |
+		\grep "^tmux" |
+		\grep -v "^tmux source"
+}
+
+number_tmux_processes_except_current_server() {
+	all_tmux_processes |
+		\grep -v " $(current_tmux_server_pid)$" |
+		wc -l |
+		sed "s/ //g"
+}
+
+number_current_server_client_processes() {
+	tmux list-clients |
+		wc -l |
+		sed "s/ //g"
+}
+
+another_tmux_server_running_on_startup() {
+	# there are 2 tmux processes (current tmux server + 1) on tmux startup
+	[ "$(number_tmux_processes_except_current_server)" -gt 1 ]
+}