mopidy-local: init at 3.1.1

Mopidy-Local is the successor to Mopidy-Local-SQLite and
Mopidy-Local-Images, which are already packaged. I had to make
gobject-introspection a propagated build input, otherwise
Mopidy-Local can't import Mopidy.

pkgs/applications/audio/mopidy/default.nix

@@ -14,6 +14,8 @@ let
 
     mopidy-gmusic = callPackage ./gmusic.nix { };
 
+    mopidy-local = callPackage ./local.nix { };
+
     mopidy-local-images = callPackage ./local-images.nix { };
 
     mopidy-local-sqlite = callPackage ./local-sqlite.nix { };

pkgs/applications/audio/mopidy/local.nix

@@ -0,0 +1,30 @@
+{ lib
+, mopidy
+, python3Packages
+}:
+
+python3Packages.buildPythonApplication rec {
+  pname = "Mopidy-Local";
+  version = "3.1.1";
+
+  src = python3Packages.fetchPypi {
+    inherit pname version;
+    sha256 = "13m0iz14lyplnpm96gfpisqvv4n89ls30kmkg21z7v238lm0h19j";
+  };
+
+  propagatedBuildInputs = [
+    mopidy
+    python3Packages.uritools
+  ];
+
+  checkInputs = [
+    python3Packages.pytestCheckHook
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/mopidy/mopidy-local";
+    description = "Mopidy extension for playing music from your local music archive";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ ruuda ];
+  };
+}

pkgs/applications/audio/mopidy/mopidy.nix

@@ -16,13 +16,24 @@ pythonPackages.buildPythonApplication rec {
   nativeBuildInputs = [ wrapGAppsHook ];
 
   buildInputs = with gst_all_1; [
-    gst-plugins-base gst-plugins-good gst-plugins-ugly gst-plugins-bad
-    glib-networking gobject-introspection
+    glib-networking
+    gst-plugins-bad
+    gst-plugins-base
+    gst-plugins-good
+    gst-plugins-ugly
   ];
 
-  propagatedBuildInputs = with pythonPackages; [
-    gst-python pygobject3 pykka tornado requests setuptools
-  ] ++ stdenv.lib.optional (!stdenv.isDarwin) dbus-python;
+  propagatedBuildInputs = [
+    gobject-introspection
+  ] ++ (with pythonPackages; [
+      gst-python
+      pygobject3
+      pykka
+      requests
+      setuptools
+      tornado
+    ] ++ stdenv.lib.optional (!stdenv.isDarwin) dbus-python
+  );
 
   # There are no tests
   doCheck = false;

pkgs/top-level/all-packages.nix

@@ -22122,6 +22122,7 @@ in
     mopidy
     mopidy-gmusic
     mopidy-iris
+    mopidy-local
     mopidy-local-images
     mopidy-local-sqlite
     mopidy-moped