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nixpkgs/nixos/modules/services/hardware/lirc.nix
pennae 2e751c0772 treewide: automatically md-convert option descriptions
the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
2022-07-30 15:16:34 +02:00

101 lines
2.5 KiB
Nix

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