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{ config, lib, ... }:
let
dmcfg = config.services.xserver.displayManager;
cfg = config.test-support.displayManager.auto;
in
{
###### interface
options = {
test-support.displayManager.auto = {
enable = lib.mkOption {
default = false;
description = lib.mdDoc ''
Whether to enable the fake "auto" display manager, which
automatically logs in the user specified in the
{option}`user` option. This is mostly useful for
automated tests.
'';
};
user = lib.mkOption {
default = "root";
description = lib.mdDoc "The user account to login automatically.";
};
};
};
###### implementation
config = lib.mkIf cfg.enable {
services.xserver.displayManager = {
lightdm.enable = true;
autoLogin = {
enable = true;
user = cfg.user;
};
};
# lightdm by default doesn't allow auto login for root, which is
# required by some nixos tests. Override it here.
security.pam.services.lightdm-autologin.text = lib.mkForce ''
auth requisite pam_nologin.so
auth required pam_succeed_if.so quiet
auth required pam_permit.so
account include lightdm
password include lightdm
session include lightdm
'';
};
}
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