imapnotify: use direct nix store path for config

As pointed out in #3291, using the XDG symlink means the agent/unit
files don’t change when the contents of the config changes, and so the
service will not be restarted.

modules/services/imapnotify.nix

@@ -21,10 +21,9 @@ let
         Unit = { Description = "imapnotify for ${name}"; };
 
         Service = {
+          # Use the nix store path for config to ensure service restarts when it changes
           ExecStart =
-            "${getExe cfg.package} -conf '${config.xdg.configHome}/imapnotify/${
-              configName account
-            }'";
+            "${getExe cfg.package} -conf '${genAccountConfig account}'";
           Restart = "always";
           RestartSec = 30;
           Type = "simple";
@@ -44,11 +43,9 @@ let
       value = {
         enable = true;
         config = {
-          ProgramArguments = [
-            "${getExe cfg.package}"
-            "-conf"
-            "${config.xdg.configHome}/imapnotify/${configName account}"
-          ];
+          # Use the nix store path for config to ensure service restarts when it changes
+          ProgramArguments =
+            [ "${getExe cfg.package}" "-conf" "${genAccountConfig account}" ];
           KeepAlive = true;
           ThrottleInterval = 30;
           ExitTimeOut = 0;

tests/modules/programs/goimapnotify/launchd.nix

@@ -33,8 +33,9 @@ with lib;
   nmt.script = let
     serviceFileName = "org.nix-community.home.imapnotify-hm-example.com.plist";
   in ''
-    serviceFile=LaunchAgents/${serviceFileName}
+    serviceFile="LaunchAgents/${serviceFileName}"
+    serviceFileNormalized="$(normalizeStorePaths "$serviceFile")"
     assertFileExists $serviceFile
-    assertFileContent $serviceFile ${./launchd.plist}
+    assertFileContent $serviceFileNormalized ${./launchd.plist}
   '';
 }

tests/modules/programs/goimapnotify/launchd.plist

@@ -19,7 +19,7 @@
 	<array>
 		<string>@goimapnotify@/bin/goimapnotify</string>
 		<string>-conf</string>
-		<string>/home/hm-user/.config/imapnotify/imapnotify-hm-example.com-config.json</string>
+		<string>/nix/store/00000000000000000000000000000000-imapnotify-hm-example.com-config.json</string>
 	</array>
 	<key>RunAtLoad</key>
 	<true/>