From 3c69c7589a9d5a49c5ccd96926c0d761700887a3 Mon Sep 17 00:00:00 2001
From: Robert Helgesson <robert@rycee.net>
Date: Sat, 6 May 2017 12:51:08 +0200
Subject: [PATCH] xsession: make windowManager option required

Also add a fairly complicated example.
---
 modules/xsession.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules/xsession.nix b/modules/xsession.nix
index f18d7e8b..e0dff455 100644
--- a/modules/xsession.nix
+++ b/modules/xsession.nix
@@ -14,8 +14,15 @@ in
       enable = mkEnableOption "X Session";
 
       windowManager = mkOption {
-        default = {};
         type = types.str;
+        example = literalExample ''
+          let
+            xmonad = pkgs.xmonad-with-packages.override {
+              packages = self: [ self.xmonad-contrib self.taffybar ];
+            };
+          in
+            "''${xmonad}/bin/xmonad";
+        '';
         description = "Path to window manager to exec.";
       };