refactored setup script and added install option

setup.sh

@@ -10,12 +10,7 @@ startx_command="startlxqt"
 . ./connection.sh
 . ./user.sh
 
-choice=""
-
-clear
-echo "=== Welcome to Tildelinux! ==="
-configure_network
-
+setup_tildelinux() {
 	echo "What tilde would you like to connect to? (use the domain name as you would for ssh)"
 	read tilde_name
 	
@@ -56,3 +51,40 @@ echo "User configured!"
 	echo "All done! Enjoy using Tildelinux!"
 	rm ./setup_incomplete
 	systemctl restart 'getty@tty1.service'
+}
+
+choose_option() {
+	answers="1 2"
+	answer=""
+	
+	
+	echo "What would you like to do?"
+	echo "1. Configure Tildelinux for use as a live system"
+	echo "2. Install Tildelinux to a disk"
+	read -r answer
+	
+	if is_substring "$answer" "$answers"
+	then
+		case "$answer" in
+		"1")
+			setup_tildelinux
+			;;
+		"2")
+			startx
+			;;
+	else
+		echo "\"$answer\" is not a valid option."
+		choose_option
+	fi
+}
+
+clear
+echo "=== Welcome to Tildelinux! ==="
+configure_network
+
+if [ -f ./setup_incomplete ]
+then
+	choose_option
+else
+	setup_tildelinux
+fi