mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-30 09:31:01 +00:00
29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
51 lines
1,018 B
Nix
51 lines
1,018 B
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
initScriptBuilder = pkgs.substituteAll {
|
|
src = ./init-script-builder.sh;
|
|
isExecutable = true;
|
|
inherit (pkgs) bash;
|
|
path = [pkgs.coreutils pkgs.gnused pkgs.gnugrep];
|
|
};
|
|
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
boot.loader.initScript = {
|
|
|
|
enable = mkOption {
|
|
default = false;
|
|
description = ''
|
|
Some systems require a /sbin/init script which is started.
|
|
Or having it makes starting NixOS easier.
|
|
This applies to some kind of hosting services and user mode linux.
|
|
|
|
Additionally this script will create
|
|
/boot/init-other-configurations-contents.txt containing
|
|
contents of remaining configurations. You can copy paste them into
|
|
/sbin/init manually running a rescue system or such.
|
|
'';
|
|
};
|
|
};
|
|
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = mkIf config.boot.loader.initScript.enable {
|
|
|
|
system.build.installBootLoader = initScriptBuilder;
|
|
|
|
};
|
|
|
|
}
|