From 8def3835111f0b16850736aa210ca542fcd02af6 Mon Sep 17 00:00:00 2001
From: Robert Helgesson <robert@rycee.net>
Date: Mon, 16 Sep 2019 21:43:53 +0200
Subject: [PATCH] mpd: allow path literal values in options

This allows specifying, for example, the music directory using path
literals without causing the directory to be copied to the Nix store.

Suggested-by: Silvan Mosberger <infinisil@icloud.com>
(cherry picked from commit b0544c8cded820fc1439c26b4fc7485846430516)
---
 modules/services/mpd.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/services/mpd.nix b/modules/services/mpd.nix
index fbcf9e94..673d6510 100644
--- a/modules/services/mpd.nix
+++ b/modules/services/mpd.nix
@@ -46,6 +46,7 @@ in {
         type = types.path;
         default = "${config.home.homeDirectory}/music";
         defaultText = "$HOME/music";
+        apply = toString;       # Prevent copies to Nix store.
         description = ''
           The directory where mpd reads music from.
         '';
@@ -55,6 +56,7 @@ in {
         type = types.path;
         default = "${cfg.dataDir}/playlists";
         defaultText = ''''${dataDir}/playlists'';
+        apply = toString;       # Prevent copies to Nix store.
         description = ''
           The directory where mpd stores playlists.
         '';
@@ -79,6 +81,7 @@ in {
         type = types.path;
         default = "${config.xdg.dataHome}/${name}";
         defaultText = "$XDG_DATA_HOME/mpd";
+        apply = toString;       # Prevent copies to Nix store.
         description = ''
           The directory where MPD stores its state, tag cache,
           playlists etc.