nixpkgs/nixos/modules/services/networking/amuled.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
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.
2014-04-14 16:26:48 +02:00

79 lines
1.5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.amule;
user = if cfg.user != null then cfg.user else "amule";
in
{
###### interface
options = {
services.amule = {
enable = mkOption {
default = false;
description = ''
Whether to run the AMule daemon. You need to manually run "amuled --ec-config" to configure the service for the first time.
'';
};
dataDir = mkOption {
default = ''/home/${user}/'';
description = ''
The directory holding configuration, incoming and temporary files.
'';
};
user = mkOption {
default = null;
description = ''
The user the AMule daemon should run as.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
users.extraUsers = mkIf (cfg.user == null) [
{ name = "amule";
description = "AMule daemon";
group = "amule";
uid = config.ids.uids.amule;
} ];
users.extraGroups = mkIf (cfg.user == null) [
{ name = "amule";
gid = config.ids.gids.amule;
} ];
jobs.amuled =
{ description = "AMule daemon";
startOn = "ip-up";
preStart = ''
mkdir -p ${cfg.dataDir}
chown ${user} ${cfg.dataDir}
'';
exec = ''
${pkgs.su}/bin/su -s ${pkgs.stdenv.shell} ${user} \
-c 'HOME="${cfg.dataDir}" ${pkgs.amuleDaemon}/bin/amuled'
'';
};
};
}