From a9953635d7f34e7358d5189751110f87e3ac17da Mon Sep 17 00:00:00 2001
From: Jordan Williams <jordan@jwillikers.com>
Date: Tue, 12 Nov 2024 14:13:32 -0600
Subject: [PATCH] mopidy: restart service on config changes

Also extend basic configuration test a bit to verify the restart
trigger.
---
 modules/services/mopidy.nix                   |  2 ++
 .../services/mopidy/basic-configuration.nix   | 23 ++++++++++++++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/modules/services/mopidy.nix b/modules/services/mopidy.nix
index fc04d3d07..d50a81294 100644
--- a/modules/services/mopidy.nix
+++ b/modules/services/mopidy.nix
@@ -126,6 +126,8 @@ in {
         Description = "mopidy music player daemon";
         Documentation = [ "https://mopidy.com/" ];
         After = [ "network.target" "sound.target" ];
+        X-Restart-Triggers = mkIf (cfg.settings != { })
+          [ "${config.xdg.configFile."mopidy/mopidy.conf".source}" ];
       };
 
       Service = {
diff --git a/tests/modules/services/mopidy/basic-configuration.nix b/tests/modules/services/mopidy/basic-configuration.nix
index 2bffbd681..99aaeece8 100644
--- a/tests/modules/services/mopidy/basic-configuration.nix
+++ b/tests/modules/services/mopidy/basic-configuration.nix
@@ -29,7 +29,28 @@
   };
 
   nmt.script = ''
-    assertFileExists home-files/.config/systemd/user/mopidy.service
+    serviceFile=home-files/.config/systemd/user/mopidy.service
+    assertFileExists $serviceFile
+    serviceFile=$(normalizeStorePaths $serviceFile)
+    assertFileContent $serviceFile \
+      ${
+        builtins.toFile "expected-mopidy.service" ''
+          [Install]
+          WantedBy=default.target
+
+          [Service]
+          ExecStart=/nix/store/00000000000000000000000000000000-mopidy-with-extensions/bin/mopidy --config /home/hm-user/.config/mopidy/mopidy.conf
+          Restart=on-failure
+
+          [Unit]
+          After=network.target
+          After=sound.target
+          Description=mopidy music player daemon
+          Documentation=https://mopidy.com/
+          X-Restart-Triggers=/nix/store/00000000000000000000000000000000-mopidy-hm-user
+        ''
+      }
+
     assertPathNotExists home-files/.config/systemd/user/mopidy-scan.service
 
     assertFileExists home-files/.config/mopidy/mopidy.conf