* Added the j2sdk of Sun for Linux. Downloading this thing is

a big problem, so I decided to require to user to get the
          file and put it in some location in the file system. wget
          doesn't seem to accept the file scheme however, so I had to
          move the copying into the builder itself. The builder checks
          the md5 hash of the downloaded file. Maybe having a separate
          'fetchfile' would be useful to make a file in the outside
          world pure. I tried to add this to build-support, but this
          obviously did not work. I still committed it. Just remove it
          if you think that it sucks.

svn path=/nixpkgs/trunk/; revision=716

pkgs/build-support/fetchfile/builder.sh

@@ -0,0 +1,13 @@
+#! /bin/sh
+
+. $stdenv/setup
+
+echo "copying $url into $out..."
+
+cp "$pathname" "$out" || exit 1
+
+actual=$(md5sum -b $out | cut -c1-32)
+if test "$actual" != "$md5"; then
+    echo "hash is $actual, expected $md5"
+    exit 1
+fi

pkgs/build-support/fetchfile/default.nix

@@ -0,0 +1,9 @@
+{stdenv}: {pathname, md5}: derivation {
+  name = baseNameOf (toString url);
+  system = stdenv.system;
+  builder = ./builder.sh;
+  stdenv = stdenv;
+  pathname = pathname;
+  md5 = md5;
+  id = md5;
+}

pkgs/development/compilers/j2sdk/builder.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+. $stdenv/setup || exit 1
+version=j2sdk1.4.2_03
+src=$version.bin
+
+cp $pathname $src || exit 1
+
+actual=$(md5sum -b $src | cut -c1-32)
+if test "$actual" != "$md5"; then
+    echo "hash is $actual, expected $md5"
+    exit 1
+fi
+
+chmod u+x $src || exit 1
+
+alias more=cat
+
+yes yes | ./$src || exit 1
+
+mkdir $out || exit 1
+mv $version/* $out/ || exit 1

pkgs/development/compilers/j2sdk/default.nix

@@ -0,0 +1,10 @@
+{stdenv, fetchurl}: 
+
+if stdenv.system == "i686-linux"
+  then
+    (import ./j2sdk-sun-linux.nix) {
+      stdenv   = stdenv;
+      fetchurl = fetchurl;
+    }
+  else
+    false

pkgs/development/compilers/j2sdk/j2sdk-sun-linux.nix

@@ -0,0 +1,22 @@
+/**
+ * This Nix expression requires the user to download the j2sdk
+ * distribution to /tmp. Please obtain j2sdk-1_4_2_03-linux-i586.bin
+ * from java.sun.com by hand and place it in /tmp. Blame Sun, not me.
+ *
+ * Note that this is not necessary if someone has already pushed a
+ * binary.
+ *
+ * @author Martin Bravenboer <martin@cs.uu.nl>
+ */
+{stdenv, fetchurl}: 
+
+assert stdenv.system == "i686-linux";
+
+derivation {
+  name = "j2sdk-1.4.2";
+  system = stdenv.system;
+  builder = ./builder.sh;
+  pathname = /tmp/j2sdk-1_4_2_03-linux-i586.bin;
+  md5 = "859aa6750161477acec83b7bb5d9998d";
+  stdenv = stdenv;
+}

pkgs/development/interpreters/j2re/j2re-sun-linux.nix

@@ -8,7 +8,7 @@ derivation {
   system = stdenv.system;
   builder = ./builder.sh;
   src = fetchurl {
-      url = http://www.java.sun.com/webapps/download/AutoDL?BundleId=9500;
+      url = http://java.sun.com/webapps/download/AutoDL?BundleId=9500;
       md5 = "b4aae3fcda73d976bd6ae6349b36a90c";
     };
   stdenv = stdenv;

pkgs/system/all-packages-generic.nix

@@ -235,6 +235,11 @@
     stdenv = stdenv;
   };
 
+  j2sdk = (import ../development/compilers/j2sdk) {
+    fetchurl = fetchurl;
+    stdenv = stdenv;
+  };
+
   pcre = (import ../development/libraries/pcre) {
     fetchurl = fetchurl;
     stdenv = stdenv;