os/modules/core/hibernation.nix

41 lines
1 KiB
Nix

{
config,
pkgs,
lib,
...
}:
let
cfg = config.pub-solar.core.hibernation;
inherit (lib) mkOption types mkIf;
in
{
options.pub-solar.core.hibernation = {
enable = mkOption {
type = types.bool;
default = false;
description = "Whether the device can hibernate. This creates a swapfile at /swapfile.";
};
resumeDevice = mkOption {
type = types.nullOr types.str;
default = null;
description = "The location of the hibernation resume swap file.";
};
resumeOffset = mkOption {
type = types.nullOr types.int;
default = null;
description = "The swap file offset. Can be found by running `filefrag -v $swap_file_location`. See https://wiki.archlinux.org/title/Power_management/Suspend_and_hibernate#Hibernation_into_swap_file";
};
};
config = {
boot = mkIf cfg.enable {
resumeDevice = mkIf (cfg.resumeDevice != null) cfg.resumeDevice;
kernelParams = mkIf (cfg.resumeOffset != null) [
"resume_offset=${builtins.toString cfg.resumeOffset}"
];
};
};
}