nixos-artwork: Make into a derivation and use fetchfromgithub

pkgs/data/misc/nixos-artwork/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation {
+  name = "nixos-artwork-2015-02-27";
+  # Remember to check the default lightdm wallpaper when updating
+
+  src = fetchFromGitHub {
+    owner = "NixOS";
+    repo = "nixos-artwork";
+    rev = "e71b6846023919136795ede22b16d73b2cf1693d";
+    sha256 = "167yvhm2qy7qgyrqqs4hv98mmlarhgxpcsyv0r8a9g3vkblfdczb";
+  };
+
+  installPhase = ''
+    mkdir -p $out/share/artwork
+    cp -r * $out/share/artwork
+    find $out -name \*.xcf -exec rm {} \;
+  '';
+  
+  meta = with stdenv.lib; {
+    homepage = "https://github.com/NixOS/nixos-artwork";
+    platforms = platforms.all;
+  };
+}