cinnamon.nemo-python: init at 5.6.0

pkgs/desktops/cinnamon/default.nix

···
   # Extensions added here will be shipped by default
   nemoExtensions = [
     nemo-fileroller
+    nemo-python
   ];
 
   # blueberry -> pkgs/tools/bluetooth/blueberry/default.nix
···
   cjs = callPackage ./cjs { };
   nemo = callPackage ./nemo { };
   nemo-fileroller = callPackage ./nemo-extensions/nemo-fileroller { };
+  nemo-python = callPackage ./nemo-extensions/nemo-python { };
   nemo-with-extensions = callPackage ./nemo/wrapper.nix { };
   mint-artwork = callPackage ./mint-artwork { };
   mint-cursor-themes = callPackage ./mint-cursor-themes { };

pkgs/desktops/cinnamon/nemo-extensions/nemo-python/default.nix

···
+{ stdenv
+, lib
+, fetchFromGitHub
+, meson
+, pkg-config
+, ninja
+, glib
+, gtk3
+, nemo
+, python3
+, substituteAll
+}:
+
+stdenv.mkDerivation rec {
+  pname = "nemo-python";
+  version = "5.6.0";
+
+  src = fetchFromGitHub {
+    owner = "linuxmint";
+    repo = "nemo-extensions";
+    rev = version;
+    sha256 = "sha256-cxutiz5bc/dZ9D7XzvMWodWNYvNJPj+5IhJDPJwnb5I=";
+  };
+
+  sourceRoot = "${src.name}/nemo-python";
+
+  patches = [
+    # Load extensions from NEMO_PYTHON_EXTENSION_DIR environment variable
+    # https://github.com/NixOS/nixpkgs/issues/78327
+    ./load-extensions-from-env.patch
+
+    # Required for pygobject_init ().
+    (substituteAll {
+      src = ./python-path.patch;
+      env = "${python3.pkgs.pygobject3}/${python3.sitePackages}";
+    })
+  ];
+
+  nativeBuildInputs = [
+    meson
+    pkg-config
+    ninja
+  ];
+
+  buildInputs = [
+    glib
+    gtk3
+    nemo
+    python3
+    python3.pkgs.pygobject3
+  ];
+
+  postPatch = ''
+    # Tries to load libpython3.so via g_module_open ().
+    substituteInPlace meson.build \
+      --replace "get_option('prefix'), get_option('libdir')" "'${python3}/lib'"
+  '';
+
+  PKG_CONFIG_LIBNEMO_EXTENSION_EXTENSIONDIR = "${placeholder "out"}/${nemo.extensiondir}";
+
+  meta = with lib; {
+    homepage = "https://github.com/linuxmint/nemo-extensions/tree/master/nemo-python";
+    description = "Python bindings for the Nemo extension library";
+    license = licenses.gpl2Plus;
+    platforms = platforms.linux;
+    maintainers = teams.cinnamon.members;
+  };
+}

pkgs/desktops/cinnamon/nemo-extensions/nemo-python/load-extensions-from-env.patch

···
+diff --git a/src/nemo-python.c b/src/nemo-python.c
+index 8d2acdb..900811b 100644
+--- a/src/nemo-python.c
++++ b/src/nemo-python.c
+@@ -255,6 +255,7 @@ nemo_module_initialize(GTypeModule *module)
+ {
+ 	gchar *user_extensions_dir;
+ 	const gchar *env_string;
++	const gchar *python_extensiondir;
+ 
+ 	env_string = g_getenv("NEMO_PYTHON_DEBUG");
+ 	if (env_string != NULL)
+@@ -269,8 +270,12 @@ nemo_module_initialize(GTypeModule *module)
+ 
+ 	all_types = g_array_new(FALSE, FALSE, sizeof(GType));
+ 
+-	// Look in the new global path, $DATADIR/nemo-python/extensions
+-	nemo_python_load_dir(module, PYTHON_EXTENSION_DIR);
++	// Look in NEMO_PYTHON_EXTENSION_DIR
++	python_extensiondir = g_getenv("NEMO_PYTHON_EXTENSION_DIR");
++	if (python_extensiondir == NULL) {
++		python_extensiondir = PYTHON_EXTENSION_DIR;
++	}
++	nemo_python_load_dir(module, python_extensiondir);
+ 
+ 	// Look in XDG_DATA_DIR, ~/.local/share/nemo-python/extensions
+ 	user_extensions_dir = g_build_filename(g_get_user_data_dir(), 

pkgs/desktops/cinnamon/nemo-extensions/nemo-python/python-path.patch

···
+diff --git a/src/nemo-python.c b/src/nemo-python.c
+index 8d2acdb..ee24143 100644
+--- a/src/nemo-python.c
++++ b/src/nemo-python.c
+@@ -197,7 +197,7 @@ nemo_python_init_python (void)
+ 	}
+ 	
+ 	debug("Sanitize the python search path");
+-	PyRun_SimpleString("import sys; sys.path = [path for path in sys.path if path]");
++	PyRun_SimpleString("import sys; sys.path = [path for path in sys.path if path]; sys.path.append('@env@')");
+ 	if (PyErr_Occurred())
+ 	{
+ 		PyErr_Print();

pkgs/desktops/cinnamon/nemo/wrapper.nix

···
   postBuild = ''
     for f in $(find $out/bin/ $out/libexec/ -type l -not -path "*/.*"); do
       wrapProgram "$f" \
-        --set "NEMO_EXTENSION_DIR" "$out/${nemo.extensiondir}"
+        --set "NEMO_EXTENSION_DIR" "$out/${nemo.extensiondir}" \
+        --set "NEMO_PYTHON_EXTENSION_DIR" "$out/share/nemo-python/extensions"
     done
 
     # Point to wrapped binary in all service files