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nixos/getty: add services.getty.loginOptions #108497

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merged 1 commit into from Jan 8, 2021
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@alyssais alyssais commented Jan 5, 2021

This corresponds to agetty's --login-options argument.

With this change, I can set

services.getty.autologinUser = "qyliss";
services.getty.loginOptions = "-- \\u";

and have my username prefilled, but with my password still
required (unlike the normal autologinUser behaviour).

Motivation for this change
Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

@alyssais
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alyssais commented Jan 5, 2021 via email

This corresponds to agetty's --login-options argument.

With this change, I can set

    services.getty.autologinUser = "qyliss";
    services.getty.loginOptions = "-- \\u";

and have my username prefilled, but with my password still
required (unlike the normal autologinUser behaviour).
@alyssais
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alyssais commented Jan 6, 2021

@ofborg test login

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@cole-h cole-h left a comment

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Diff LGTM.

Pretty neat, I think I'll do the same if (when) this gets merged.

gettyCmd = extraArgs: "@${pkgs.util-linux}/sbin/agetty agetty --login-program ${pkgs.shadow}/bin/login ${autologinArg} ${extraArgs}";
gettyCmd = extraArgs:
"@${pkgs.util-linux}/sbin/agetty agetty ${escapeShellArgs loginArgs} "
+ extraArgs;
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A little curious why you opted for + extraArgs instead of ${extraArgs}" here.

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The line was getting too long for my liking.

@alyssais alyssais merged commit 8694e7d into NixOS:master Jan 8, 2021
@alyssais alyssais deleted the getty branch January 8, 2021 13:55
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2 participants