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nh: add module

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John Titor 2024-04-23 23:07:08 +05:30 committed by Robert Helgesson
parent 122f70545b
commit 892a6443b7
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3 changed files with 107 additions and 0 deletions

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@ -1789,6 +1789,18 @@ in {
cmus is a small, fast and powerful console music player.
'';
}
{
time = "2024-10-20T07:53:54+00:00";
condition = hostPlatform.isLinux;
message = ''
A new module is available: 'programs.nh'.
nh is yet another Nix CLI helper. Adding functionality on top of the
existing solutions, like nixos-rebuild, home-manager cli or nix
itself.
'';
}
];
};
}

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@ -172,6 +172,7 @@ let
./programs/neovide.nix
./programs/neovim.nix
./programs/newsboat.nix
./programs/nh.nix
./programs/nheko.nix
./programs/nix-index.nix
./programs/nnn.nix

94
modules/programs/nh.nix Normal file
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@ -0,0 +1,94 @@
{ config, osConfig, lib, pkgs, ... }:
let
cfg = config.programs.nh;
in {
meta.maintainers = with lib.maintainers; [ johnrtitor ];
options.programs.nh = {
enable = lib.mkEnableOption "nh, yet another Nix CLI helper";
package = lib.mkPackageOption pkgs "nh" { };
flake = lib.mkOption {
type = lib.types.nullOr lib.types.path;
default = null;
description = ''
The path that will be used for the {env}`FLAKE` environment variable.
{env}`FLAKE` is used by nh as the default flake for performing actions,
like {command}`nh os switch`.
'';
};
clean = {
enable = lib.mkEnableOption ''
periodic garbage collection for user profile and nix store with nh clean
user'';
dates = lib.mkOption {
type = lib.types.singleLineStr;
default = "weekly";
description = ''
How often cleanup is performed.
The format is described in {manpage}`systemd.time(7)`.
'';
};
extraArgs = lib.mkOption {
type = lib.types.singleLineStr;
default = "";
example = "--keep 5 --keep-since 3d";
description = ''
Options given to nh clean when the service is run automatically.
See `nh clean all --help` for more information.
'';
};
};
};
config = {
warnings = lib.optionals (!(cfg.clean.enable -> !osConfig.nix.gc.automatic))
[
"programs.nh.clean.enable and nix.gc.automatic (system-wide in configuration.nix) are both enabled. Please use one or the other to avoid conflict."
];
assertions = [{
assertion = (cfg.flake != null) -> !(lib.hasSuffix ".nix" cfg.flake);
message = "nh.flake must be a directory, not a nix file";
}];
home = lib.mkIf cfg.enable {
packages = [ cfg.package ];
sessionVariables = lib.mkIf (cfg.flake != null) { FLAKE = cfg.flake; };
};
systemd.user = lib.mkIf cfg.clean.enable {
services.nh-clean = {
Unit.Description = "Nh clean (user)";
Service = {
Type = "oneshot";
ExecStart =
"exec ${lib.getExe cfg.package} clean user ${cfg.clean.extraArgs}";
Environment = "PATH=$PATH:${config.nix.package}";
};
};
timers.nh-clean = {
Unit.Description = "Run nh clean";
Timer = {
OnCalendar = cfg.clean.dates;
Persistent = true;
};
Install.WantedBy = [ "timers.target" ];
};
};
};
}