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nh: add options for specific flakes (#7566)

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* nh: Add options for specific flakes
* nh: Add tests for specific flake options

---------

Co-authored-by: Foxocube <git@foxocube.xyz>
This commit is contained in:
Foxocube 2025-07-31 18:41:29 +01:00 • committed by GitHub
parent bd82507edd
commit 4e97102bd4
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3 changed files with 87 additions and 10 deletions
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85
modules/programs/nh.nix
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@ -29,6 +29,42 @@ in
'';
};
osFlake = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
The string that will be used for the {env}`NH_OS_FLAKE` environment variable.
{env}`NH_OS_FLAKE` is used by nh as the default flake for performing {command}`nh os`
actions, such as {command}`nh os switch`.
Setting this will take priority over the `flake` option.
'';
};
homeFlake = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
The string that will be used for the {env}`NH_HOME_FLAKE` environment variable.
{env}`NH_HOME_FLAKE` is used by nh as the default flake for performing {command}`nh home`
actions, such as {command}`nh home switch`.
Setting this will take priority over the `flake` option.
'';
};
darwinFlake = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
The string that will be used for the {env}`NH_DARWIN_FLAKE` environment variable.
{env}`NH_DARWIN_FLAKE` is used by nh as the default flake for performing
{command}`nh darwin` actions, such as {command}`nh darwin switch`.
Setting this will take priority over the `flake` option.
'';
};
clean = {
enable = lib.mkEnableOption ''
periodic garbage collection for user profile and nix store with nh clean
@ -64,19 +100,48 @@ in
lib.optional (cfg.clean.enable && config.nix.gc.automatic)
"programs.nh.clean.enable and nix.gc.automatic (Home-Manager) are both enabled. Please use one or the other to avoid conflict.";
assertions = lib.optionals pkgs.stdenv.isDarwin [
(lib.hm.darwin.assertInterval "programs.nh.clean.dates" cfg.clean.dates pkgs)
];
assertions =
(lib.optionals pkgs.stdenv.isDarwin [
(lib.hm.darwin.assertInterval "programs.nh.clean.dates" cfg.clean.dates pkgs)
])
++
map
(name: {
assertion = (cfg.${name} != null) -> !(lib.hasSuffix ".nix" cfg.${name});
message = "nh.${name} must be a directory, not a nix file";
})
[
"darwinFlake"
"flake"
"homeFlake"
"osFlake"
];
home = lib.mkIf cfg.enable {
packages = [ cfg.package ];
sessionVariables = lib.mkIf (cfg.flake != null) (
let
packageVersion = lib.getVersion cfg.package;
isVersion4OrHigher = lib.versionAtLeast packageVersion "4.0.0";
in
if isVersion4OrHigher then { NH_FLAKE = cfg.flake; } else { FLAKE = cfg.flake; }
);
sessionVariables = lib.mkMerge [
(lib.mkIf (cfg.flake != null) (
let
packageVersion = lib.getVersion cfg.package;
isVersion4OrHigher = lib.versionAtLeast packageVersion "4.0.0";
in
if isVersion4OrHigher then { NH_FLAKE = cfg.flake; } else { FLAKE = cfg.flake; }
))
(lib.mkMerge (
map
(
name:
(lib.mkIf (cfg."${name}Flake" != null) {
"NH_${lib.toUpper name}_FLAKE" = cfg."${name}Flake";
})
)
[
"darwin"
"home"
"os"
]
))
];
};
systemd.user = lib.mkIf (cfg.clean.enable && pkgs.stdenv.isLinux) {