Simplify update metadata for DirectFB

pkgs/development/libraries/directfb/default.nix

@@ -2,12 +2,18 @@
 , enableX11 ? true, xlibs
 , enableSDL ? true, SDL }:
 
-let s = import ./src-for-default.nix; in
+let s = 
+rec {
+   version = "1.7.6";
+   name="directfb-${version}";
+   sha256 = "1qf94vgsbcwfa00x2aqd6795n6z43x4ghclmb4sa4bl4zfn2pws4";
+   url="http://directfb.org/downloads/Core/DirectFB-1.7/DirectFB-${version}.tar.gz";
+}
+; in
 stdenv.mkDerivation {
   inherit (s) name;
   src = fetchurl {
-    url = s.url;
+    inherit (s) url sha256;
-    sha256 = s.hash;
   };
 
   nativeBuildInputs = [ perl ];

pkgs/development/libraries/directfb/default.upstream

@@ -0,0 +1,3 @@
+url 'http://directfb.org/index.php?path=Main%2FDownloads'
+version_link 'DirectFB-[0-9]'
+minimize_overwrite

pkgs/development/libraries/directfb/src-for-default.nix

@@ -1,9 +0,0 @@
-rec {
-   version="1.7.6";
-   name="directfb-${version}";
-   hash="1qf94vgsbcwfa00x2aqd6795n6z43x4ghclmb4sa4bl4zfn2pws4";
-   url="http://directfb.org/downloads/Core/DirectFB-1.7/DirectFB-${version}.tar.gz";
-   advertisedUrl="http://directfb.org/downloads/Core/DirectFB-1.7/DirectFB-1.7.6.tar.gz";
-  
-  
-}

pkgs/development/libraries/directfb/src-info-for-default.nix

@@ -1,6 +0,0 @@
-{
-  baseName = "directfb";
-  downloadPage = "http://directfb.org/index.php?path=Main%2FDownloads";
-  sourceRegexp = ''DirectFB-.*[.]tar[.].*'';
-  choiceCommand = ''tail -1'';
-}