From cbe99c7facdbb7b82a8f69cc174f2e6db1baa47b Mon Sep 17 00:00:00 2001
From: Pierre Bourdon <delroth@gmail.com>
Date: Wed, 5 Aug 2020 07:19:18 +0200
Subject: [PATCH] nixos/agetty: allow overriding the login program

---
 nixos/modules/services/ttys/getty.nix | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/ttys/getty.nix b/nixos/modules/services/ttys/getty.nix
index 8345dfabeb7e..7cf2ff87da26 100644
--- a/nixos/modules/services/ttys/getty.nix
+++ b/nixos/modules/services/ttys/getty.nix
@@ -6,7 +6,7 @@ let
   cfg = config.services.getty;
 
   baseArgs = [
-    "--login-program" "${pkgs.shadow}/bin/login"
+    "--login-program" "${cfg.loginProgram}"
   ] ++ optionals (cfg.autologinUser != null) [
     "--autologin" cfg.autologinUser
   ] ++ optionals (cfg.loginOptions != null) [
@@ -39,6 +39,14 @@ in
         '';
       };
 
+      loginProgram = mkOption {
+        type = types.path;
+        default = "${pkgs.shadow}/bin/login";
+        description = ''
+          Path to the login binary executed by agetty.
+        '';
+      };
+
       loginOptions = mkOption {
         type = types.nullOr types.str;
         default = null;