gwtwidgets: remove builder.sh

pkgs/development/libraries/java/gwt-widgets/builder.sh

@@ -1,6 +0,0 @@
-source $stdenv/setup
-
-tar xfvz $src
-cd gwt-widgets-*
-mkdir -p $out/share/java
-cp gwt-widgets-*.jar $out/share/java

pkgs/development/libraries/java/gwt-widgets/default.nix

@@ -1,14 +1,23 @@
-{lib, stdenv, fetchurl}:
+{ lib, stdenv, fetchurl }:
 
-stdenv.mkDerivation {
-  name = "gwt-widgets-0.2.0";
-  builder = ./builder.sh;
+stdenv.mkDerivation rec {
+  pname = "gwt-widgets";
+  version = "0.2.0";
 
   src = fetchurl {
-    url = "mirror://sourceforge/gwt-widget/gwt-widgets-0.2.0-bin.tar.gz";
+    url = "mirror://sourceforge/gwt-widget/gwt-widgets-${version}-bin.tar.gz";
     sha256 = "09isj4j6842rj13nv8264irkjjhvmgihmi170ciabc98911bakxb";
   };
 
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/share/java
+    cp gwt-widgets-*.jar $out/share/java
+
+    runHook postInstall
+  '';
+
   meta = with lib; {
     platforms = platforms.unix;
     license = with licenses; [ afl21 lgpl2 ];