97 lines
2.6 KiB
Nix
97 lines
2.6 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.services.lirc;
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in {
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###### interface
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options = {
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services.lirc = {
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enable = lib.mkEnableOption "the LIRC daemon, to receive and send infrared signals";
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options = lib.mkOption {
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type = lib.types.lines;
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example = ''
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[lircd]
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nodaemon = False
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'';
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description = "LIRC default options described in man:lircd(8) ({file}`lirc_options.conf`)";
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};
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configs = lib.mkOption {
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type = lib.types.listOf lib.types.lines;
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description = "Configurations for lircd to load, see man:lircd.conf(5) for details ({file}`lircd.conf`)";
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};
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extraArguments = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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default = [];
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description = "Extra arguments to lircd.";
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};
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};
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};
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###### implementation
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config = lib.mkIf cfg.enable {
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# Note: LIRC executables raises a warning, if lirc_options.conf do not exists
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environment.etc."lirc/lirc_options.conf".text = cfg.options;
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passthru.lirc.socket = "/run/lirc/lircd";
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environment.systemPackages = [ pkgs.lirc ];
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systemd.sockets.lircd = {
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description = "LIRC daemon socket";
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wantedBy = [ "sockets.target" ];
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socketConfig = {
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ListenStream = config.passthru.lirc.socket;
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SocketUser = "lirc";
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SocketMode = "0660";
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};
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};
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systemd.services.lircd = let
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configFile = pkgs.writeText "lircd.conf" (builtins.concatStringsSep "\n" cfg.configs);
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in {
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description = "LIRC daemon service";
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after = [ "network.target" ];
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unitConfig.Documentation = [ "man:lircd(8)" ];
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serviceConfig = {
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RuntimeDirectory = ["lirc" "lirc/lock"];
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# Service runtime directory and socket share same folder.
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# Following hacks are necessary to get everything right:
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# 1. prevent socket deletion during stop and restart
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RuntimeDirectoryPreserve = true;
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# 2. fix runtime folder owner-ship, happens when socket activation
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# creates the folder
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PermissionsStartOnly = true;
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ExecStartPre = [
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"${pkgs.coreutils}/bin/chown lirc /run/lirc/"
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];
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ExecStart = ''
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${pkgs.lirc}/bin/lircd --nodaemon \
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${lib.escapeShellArgs cfg.extraArguments} \
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${configFile}
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'';
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User = "lirc";
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};
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};
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users.users.lirc = {
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uid = config.ids.uids.lirc;
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group = "lirc";
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description = "LIRC user for lircd";
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};
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users.groups.lirc.gid = config.ids.gids.lirc;
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};
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}
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