nixpkgs/nixos/modules/services/networking/minidlna.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

108 lines
2.6 KiB
Nix

# Module for MiniDLNA, a simple DLNA server.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.minidlna;
port = 8200;
in
{
###### interface
options = {
services.minidlna.enable = mkOption {
type = types.bool;
default = false;
description =
''
Whether to enable MiniDLNA, a simple DLNA server. It serves
media files such as video and music to DLNA client devices
such as televisions and media players.
'';
};
services.minidlna.mediaDirs = mkOption {
type = types.listOf types.string;
default = [];
example = [ "/data/media" "V,/home/alice/video" ];
description =
''
Directories to be scanned for media files. The prefixes
<literal>A,</literal>, <literal>V,</literal> and
<literal>P,</literal> restrict a directory to audio, video
or image files. The directories must be accessible to the
<literal>minidlna</literal> user account.
'';
};
services.minidlna.config = mkOption {
type = types.lines;
description = "The contents of MiniDLNA's configuration file.";
};
};
###### implementation
config = mkIf cfg.enable {
services.minidlna.config =
''
port=${toString port}
friendly_name=NixOS Media Server
db_dir=/var/cache/minidlna
log_dir=/var/log/minidlna
inotify=yes
${concatMapStrings (dir: ''
media_dir=${dir}
'') cfg.mediaDirs}
'';
users.extraUsers.minidlna = {
description = "MiniDLNA daemon user";
group = "minidlna";
uid = config.ids.uids.minidlna;
};
users.extraGroups.minidlna.gid = config.ids.gids.minidlna;
systemd.services.minidlna =
{ description = "MiniDLNA Server";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
preStart =
''
mkdir -p /var/cache/minidlna /var/log/minidlna /run/minidlna
chown minidlna /var/cache/minidlna /var/log/minidlna /run/minidlna
'';
# FIXME: log through the journal rather than
# /var/log/minidlna. The -d flag does that, but also raises
# the log level to debug...
serviceConfig =
{ User = "minidlna";
Group = "nogroup";
PermissionsStartOnly = true;
Type = "forking";
PIDFile = "/run/minidlna/pid";
ExecStart =
"@${pkgs.minidlna}/sbin/minidlna minidlna -P /run/minidlna/pid" +
" -f ${pkgs.writeText "minidlna.conf" cfg.config}";
};
};
};
}