yubikey-agent: remove redundant platform checks

modules/services/yubikey-agent.nix

@@ -19,79 +19,71 @@ in
     package = lib.mkPackageOption pkgs "yubikey-agent" { };
   };
 
-  config = mkIf cfg.enable (
+  config = mkIf cfg.enable {
-    lib.mkMerge [
+    home.packages = [ cfg.package ];
-      { home.packages = [ cfg.package ]; }
 
-      (mkIf pkgs.stdenv.isLinux {
+    home.sessionVariables.SSH_AUTH_SOCK =
-        systemd.user.services.yubikey-agent = {
+      if pkgs.stdenv.isDarwin then
-          Unit = {
+        "/tmp/yubikey-agent.sock"
-            Description = "Seamless ssh-agent for YubiKeys";
+      else
-            Documentation = "https://github.com/FiloSottile/yubikey-agent";
+        "\${XDG_RUNTIME_DIR:-/run/user/$UID}/yubikey-agent/yubikey-agent.sock";
-            Requires = "yubikey-agent.socket";
-            After = "yubikey-agent.socket";
-            RefuseManualStart = true;
-          };
 
-          Service = {
+    systemd.user.services.yubikey-agent = {
-            ExecStart = "${cfg.package}/bin/yubikey-agent -l %t/yubikey-agent/yubikey-agent.sock";
+      Unit = {
-            Type = "simple";
+        Description = "Seamless ssh-agent for YubiKeys";
-            # /run/user/$UID for the socket
+        Documentation = "https://github.com/FiloSottile/yubikey-agent";
-            ReadWritePaths = [ "%t" ];
+        Requires = "yubikey-agent.socket";
+        After = "yubikey-agent.socket";
+        RefuseManualStart = true;
+      };
+
+      Service = {
+        ExecStart = "${cfg.package}/bin/yubikey-agent -l %t/yubikey-agent/yubikey-agent.sock";
+        Type = "simple";
+        # /run/user/$UID for the socket
+        ReadWritePaths = [ "%t" ];
+      };
+    };
+
+    systemd.user.sockets.yubikey-agent = {
+      Unit = {
+        Description = "Unix domain socket for Yubikey SSH agent";
+        Documentation = "https://github.com/FiloSottile/yubikey-agent";
+      };
+
+      Socket = {
+        ListenStream = "%t/yubikey-agent/yubikey-agent.sock";
+        RuntimeDirectory = "yubikey-agent";
+        SocketMode = "0600";
+        DirectoryMode = "0700";
+      };
+
+      Install = {
+        WantedBy = [ "sockets.target" ];
+      };
+    };
+
+    launchd.agents.yubikey-agent = {
+      enable = true;
+      config = {
+        ProgramArguments = [
+          "${cfg.package}/bin/yubikey-agent"
+          "-l"
+          "/tmp/yubikey-agent.sock"
+        ];
+
+        KeepAlive = {
+          Crashed = true;
+          SuccessfulExit = false;
+        };
+        ProcessType = "Background";
+        Sockets = {
+          Listener = {
+            SockPathName = "/tmp/yubikey-agent.sock";
+            SockPathMode = 384; # 0600 in decimal
           };
         };
-
+      };
-        systemd.user.sockets.yubikey-agent = {
+    };
-          Unit = {
+  };
-            Description = "Unix domain socket for Yubikey SSH agent";
-            Documentation = "https://github.com/FiloSottile/yubikey-agent";
-          };
-
-          Socket = {
-            ListenStream = "%t/yubikey-agent/yubikey-agent.sock";
-            RuntimeDirectory = "yubikey-agent";
-            SocketMode = "0600";
-            DirectoryMode = "0700";
-          };
-
-          Install = {
-            WantedBy = [ "sockets.target" ];
-          };
-        };
-
-        home.sessionVariables = {
-          SSH_AUTH_SOCK = "\${XDG_RUNTIME_DIR:-/run/user/$UID}/yubikey-agent/yubikey-agent.sock";
-        };
-      })
-
-      (mkIf pkgs.stdenv.isDarwin {
-        launchd.agents.yubikey-agent = {
-          enable = true;
-          config = {
-            ProgramArguments = [
-              "${cfg.package}/bin/yubikey-agent"
-              "-l"
-              "/tmp/yubikey-agent.sock"
-            ];
-
-            KeepAlive = {
-              Crashed = true;
-              SuccessfulExit = false;
-            };
-            ProcessType = "Background";
-            Sockets = {
-              Listener = {
-                SockPathName = "/tmp/yubikey-agent.sock";
-                SockPathMode = 384; # 0600 in decimal
-              };
-            };
-          };
-        };
-
-        home.sessionVariables = {
-          SSH_AUTH_SOCK = "/tmp/yubikey-agent.sock";
-        };
-      })
-    ]
-  );
 }