import std.stdio;
import std.array : split;
import std.string : strip;

auto getMenu ()
{
    auto foods = import ("food.txt").strip.split ("\n");
    return foods;
}

auto getPeople ()
{
    return import ("people.txt").strip.split ("\n");
}

void main (string[] args)
{
    import std.array : join;
    import core.stdc.stdlib : exit;

    immutable request = args[1];
    if (request == "menu") {
        version (No_Menu) {
        } else {
            writeln ("On the menu: ", getMenu.join (", "));
            exit (0);
        }
    }

    version (With_People) {
        if (request == "people") {
            writeln ("People: ", getPeople.join (", "));
            exit (0);
        }
    }

    // we fail here
    exit (1);
}

unittest
{
    writeln ("TEST");
    import core.stdc.stdlib : exit;

    writeln(getMenu);
    assert (getMenu () == ["Spam", "Eggs", "Spam", "Baked Beans", "Spam", "Spam"]);

    exit (0);
}