uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/misc/nzbget.nix

@@ -0,0 +1,117 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.services.nzbget;
+  pkg = pkgs.nzbget;
+  stateDir = "/var/lib/nzbget";
+  configFile = "${stateDir}/nzbget.conf";
+  configOpts = concatStringsSep " " (mapAttrsToList (name: value: "-o ${name}=${escapeShellArg (toStr value)}") cfg.settings);
+  toStr = v:
+    if v == true then "yes"
+    else if v == false then "no"
+    else if isInt v then toString v
+    else v;
+in
+{
+  imports = [
+    (mkRemovedOptionModule [ "services" "misc" "nzbget" "configFile" ] "The configuration of nzbget is now managed by users through the web interface.")
+    (mkRemovedOptionModule [ "services" "misc" "nzbget" "dataDir" ] "The data directory for nzbget is now /var/lib/nzbget.")
+    (mkRemovedOptionModule [ "services" "misc" "nzbget" "openFirewall" ] "The port used by nzbget is managed through the web interface so you should adjust your firewall rules accordingly.")
+  ];
+
+  # interface
+
+  options = {
+    services.nzbget = {
+      enable = mkEnableOption "NZBGet";
+
+      user = mkOption {
+        type = types.str;
+        default = "nzbget";
+        description = "User account under which NZBGet runs";
+      };
+
+      group = mkOption {
+        type = types.str;
+        default = "nzbget";
+        description = "Group under which NZBGet runs";
+      };
+
+      settings = mkOption {
+        type = with types; attrsOf (oneOf [ bool int str ]);
+        default = {};
+        description = ''
+          NZBGet configuration, passed via command line using switch -o. Refer to
+          <link xlink:href="https://github.com/nzbget/nzbget/blob/master/nzbget.conf"/>
+          for details on supported values.
+        '';
+        example = {
+          MainDir = "/data";
+        };
+      };
+    };
+  };
+
+  # implementation
+
+  config = mkIf cfg.enable {
+    services.nzbget.settings = {
+      # allows nzbget to run as a "simple" service
+      OutputMode = "loggable";
+      # use journald for logging
+      WriteLog = "none";
+      ErrorTarget = "screen";
+      WarningTarget = "screen";
+      InfoTarget = "screen";
+      DetailTarget = "screen";
+      # required paths
+      ConfigTemplate = "${pkg}/share/nzbget/nzbget.conf";
+      WebDir = "${pkg}/share/nzbget/webui";
+      # nixos handles package updates
+      UpdateCheck = "none";
+    };
+
+    systemd.services.nzbget = {
+      description = "NZBGet Daemon";
+      after = [ "network.target" ];
+      wantedBy = [ "multi-user.target" ];
+      path = with pkgs; [
+        unrar
+        p7zip
+      ];
+
+      preStart = ''
+        if [ ! -f ${configFile} ]; then
+          ${pkgs.coreutils}/bin/install -m 0700 ${pkg}/share/nzbget/nzbget.conf ${configFile}
+        fi
+      '';
+
+      serviceConfig = {
+        StateDirectory = "nzbget";
+        StateDirectoryMode = "0750";
+        User = cfg.user;
+        Group = cfg.group;
+        UMask = "0002";
+        Restart = "on-failure";
+        ExecStart = "${pkg}/bin/nzbget --server --configfile ${stateDir}/nzbget.conf ${configOpts}";
+        ExecStop = "${pkg}/bin/nzbget --quit";
+      };
+    };
+
+    users.users = mkIf (cfg.user == "nzbget") {
+      nzbget = {
+        home = stateDir;
+        group = cfg.group;
+        uid = config.ids.uids.nzbget;
+      };
+    };
+
+    users.groups = mkIf (cfg.group == "nzbget") {
+      nzbget = {
+        gid = config.ids.gids.nzbget;
+      };
+    };
+  };
+}