nix-config/modules/home-manager-modules/impermanence.nix

35 lines
956 B
Nix

{
config,
lib,
osConfig,
...
}: let
cfg = config.impermanence;
in {
options.impermanence = {
enable = lib.mkEnableOption "impermanence for home directory";
fallbackPersistence.enable = lib.mkOption {
type = lib.types.bool;
default = true;
};
};
config = lib.mkMerge [
(lib.mkIf config.impermanence.enable {
assertions = [
{
assertion = osConfig.host.impermanence.enable;
message = "impermanence can not be enabled for a user when it is not enabled for the system";
}
];
})
# If impermanence is not enabled for this user but system impermanence is enabled,
# persist the entire home directory as fallback
(lib.mkIf (osConfig.host.impermanence.enable && !cfg.enable && cfg.fallbackPersistence.enable) {
home.persistence."/persist/home/${config.home.username}" = {
directories = ["."];
allowOther = true;
};
})
];
}