Merge branch 'master' into staging

pkgs/data/fonts/twemoji-color-font/default.nix

@@ -1,12 +1,13 @@
 { stdenv, fetchFromGitHub, inkscape, imagemagick, potrace, svgo, scfbuild }:
 
 stdenv.mkDerivation rec {
-  name = "twemoji-color-font-${meta.version}";
+  pname = "twemoji-color-font";
+  version = "12.0.1";
   src = fetchFromGitHub {
     owner = "eosrei";
     repo = "twemoji-color-font";
-    rev = "v${meta.version}";
-    sha256 = "07yawvbdkk15d7ac9dj7drs1rqln9sba1fd6jx885ms7ww2sfm7r";
+    rev = "v${version}";
+    sha256 = "00pbgqpkq21wl8fs0q1xp49xb10m48b9sz8cdc58flkd2vqfssw2";
   };
 
   nativeBuildInputs = [ inkscape imagemagick potrace svgo scfbuild ];
@@ -21,7 +22,6 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    version = "11.2.0";
     description = "Color emoji SVGinOT font using Twitter Unicode 10 emoji with diversity and country flags";
     longDescription = ''
       A color and B&W emoji SVGinOT font built from the Twitter Emoji for

pkgs/data/misc/hackage/default.nix

@@ -1,6 +1,6 @@
 { fetchurl }:
 
 fetchurl {
-  url = "https://github.com/commercialhaskell/all-cabal-hashes/archive/179aac2faddbba8921029ca9851ad97bcaa79991.tar.gz";
-  sha256 = "17cbapnvpasdpza2r1y7lf4y4b31k094jqsnx89dn8zwp8n862lv";
+  url = "https://github.com/commercialhaskell/all-cabal-hashes/archive/3f0c3944190bf34286e4e80620fede11dd688f68.tar.gz";
+  sha256 = "1i4k4wjm6w8hgwia1axwdr3ij0ckxh3ikc1f0nlk8sb0j3yrmxa6";
 }

pkgs/data/themes/tetra/default.nix

@@ -0,0 +1,36 @@
+{ stdenv, fetchFromGitHub, gtk3, sassc }:
+
+stdenv.mkDerivation rec {
+  pname = "tetra-gtk-theme";
+  version = "201905";
+
+  src = fetchFromGitHub {
+    owner  = "hrdwrrsk";
+    repo   = pname;
+    rev    = version;
+    sha256 = "1j2w8na564f5yjm5am7843hq5qk28h1rq8rcbak4xsygdc3lbsfi";
+  };
+
+  preBuild = ''
+    # Shut up inkscape's warnings
+    export HOME="$NIX_BUILD_ROOT"
+  '';
+
+  nativeBuildInputs = [ sassc ];
+  buildInputs = [ gtk3 ];
+
+  postPatch = "patchShebangs .";
+
+  installPhase = ''
+    mkdir -p $out/share/themes
+    ./install.sh -d $out/share/themes
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Adwaita-based gtk+ theme with design influence from elementary OS and Vertex gtk+ theme";
+    homepage    = https://github.com/hrdwrrsk/tetra-gtk-theme;
+    license     = licenses.gpl3;
+    maintainers = with maintainers; [ dtzWill ];
+    platforms   = platforms.linux;
+  };
+}