Merge staging-next into staging

pkgs/data/icons/papirus-icon-theme/default.nix

@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   name = "papirus-icon-theme-${version}";
-  version = "20190331";
+  version = "20190501";
 
   src = fetchFromGitHub {
     owner = "PapirusDevelopmentTeam";
     repo = "papirus-icon-theme";
     rev = version;
-    sha256 = "0kprnax26qwnxjcd0rrgdbj00835byaamkabjxi2z8lh0k47ap85";
+    sha256 = "1sdzbvlzzg42vqahjqcsj6v87y1xhchw7bgiv8jgwd2n4l3gg2zy";
   };
 
   nativeBuildInputs = [ gtk3 ];

pkgs/data/themes/sierra/default.nix

@@ -0,0 +1,33 @@
+{ stdenv, fetchFromGitHub, libxml2, gdk_pixbuf, librsvg, gtk-engine-murrine }:
+
+stdenv.mkDerivation rec {
+  pname = "sierra-gtk-theme";
+  version = "2019-05-07";
+
+  src = fetchFromGitHub {
+    owner = "vinceliuice";
+    repo = pname;
+    rev = version;
+    sha256 = "0rm9lcwp89ljxqrya9bi882qcs339pc1l945cr1xq2rganqyk9cq";
+  };
+
+  nativeBuildInputs = [ libxml2 ];
+
+  buildInputs = [ gdk_pixbuf librsvg ];
+
+  propagatedUserEnvPkgs = [ gtk-engine-murrine ];
+
+  installPhase = ''
+    patchShebangs .
+    mkdir -p $out/share/themes
+    name= ./install.sh --dest $out/share/themes
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A Mac OSX like theme for GTK based desktop environments";
+    homepage = https://github.com/vinceliuice/Sierra-gtk-theme;
+    license = licenses.gpl3;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.romildo ];
+  };
+}