150 lines
3.9 KiB
Nix
150 lines
3.9 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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name = "mpd";
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cfg = config.services.mpd;
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mpdConf = pkgs.writeText "mpd.conf" ''
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music_directory "${cfg.musicDirectory}"
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playlist_directory "${cfg.playlistDirectory}"
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${lib.optionalString (cfg.dbFile != null) ''
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db_file "${cfg.dbFile}"
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''}
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state_file "${cfg.dataDir}/state"
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sticker_file "${cfg.dataDir}/sticker.sql"
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${optionalString (cfg.network.listenAddress != "any")
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''bind_to_address "${cfg.network.listenAddress}"''}
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${optionalString (cfg.network.port != 6600)
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''port "${toString cfg.network.port}"''}
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${cfg.extraConfig}
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'';
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in {
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###### interface
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options = {
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services.mpd = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable MPD, the music player daemon.
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'';
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};
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musicDirectory = mkOption {
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type = with types; either path str;
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default = "${config.home.homeDirectory}/music";
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defaultText = "$HOME/music";
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apply = toString; # Prevent copies to Nix store.
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description = ''
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The directory where mpd reads music from.
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'';
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};
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playlistDirectory = mkOption {
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type = types.path;
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default = "${cfg.dataDir}/playlists";
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defaultText = ''''${dataDir}/playlists'';
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apply = toString; # Prevent copies to Nix store.
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description = ''
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The directory where mpd stores playlists.
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Extra directives added to to the end of MPD's configuration
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file, <filename>mpd.conf</filename>. Basic configuration
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like file location and uid/gid is added automatically to the
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beginning of the file. For available options see
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<citerefentry>
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<refentrytitle>mpd.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</citerefentry>.
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'';
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};
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dataDir = mkOption {
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type = types.path;
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default = "${config.xdg.dataHome}/${name}";
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defaultText = "$XDG_DATA_HOME/mpd";
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apply = toString; # Prevent copies to Nix store.
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description = ''
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The directory where MPD stores its state, tag cache,
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playlists etc.
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'';
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};
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network = {
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listenAddress = mkOption {
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type = types.str;
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default = "127.0.0.1";
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example = "any";
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description = ''
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The address for the daemon to listen on.
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Use <literal>any</literal> to listen on all addresses.
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'';
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};
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port = mkOption {
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type = types.port;
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default = 6600;
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description = ''
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The TCP port on which the the daemon will listen.
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'';
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};
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};
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dbFile = mkOption {
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type = types.nullOr types.str;
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default = "${cfg.dataDir}/tag_cache";
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defaultText = ''''${dataDir}/tag_cache'';
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description = ''
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The path to MPD's database. If set to
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<literal>null</literal> the parameter is omitted from the
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configuration.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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systemd.user.services.mpd = {
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Unit = {
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After = [ "network.target" "sound.target" ];
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Description = "Music Player Daemon";
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};
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Install = {
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WantedBy = [ "default.target" ];
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};
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Service = {
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Environment = "PATH=${config.home.profileDirectory}/bin";
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ExecStart = "${pkgs.mpd}/bin/mpd --no-daemon ${mpdConf}";
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Type = "notify";
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ExecStartPre = ''${pkgs.bash}/bin/bash -c "${pkgs.coreutils}/bin/mkdir -p '${cfg.dataDir}' '${cfg.playlistDirectory}'"'';
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};
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};
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};
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}
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