apache pig: new package

pkgs/applications/networking/cluster/pig/default.nix

···
+{ stdenv, fetchurl, makeWrapper, hadoop, jre, bash }:
+
+stdenv.mkDerivation rec {
+
+  name = "pig-0.14.0";
+
+  src = fetchurl {
+    url = "mirror://apache/pig/${name}/${name}.tar.gz";
+    sha256 = "183in34cj93ny3lhqyq76g9pjqgw1qlwakk5v6x847vrlkfndska";
+
+  };
+
+  buildInputs = [ makeWrapper ];
+
+  installPhase = ''
+    mkdir -p $out
+    mv * $out
+
+    # no need for the windows batch script
+    rm $out/bin/pig.cmd $out/bin/pig.py
+
+    for n in $out/{bin,sbin}"/"*; do
+      wrapProgram $n \
+        --prefix PATH : "${jre}/bin:${bash}/bin" \
+        --set JAVA_HOME "${jre}" --set HADOOP_PREFIX "${hadoop}"
+    done
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = "http://pig.apache.org/";
+    description = "High-level language for Apache Hadoop";
+    license = licenses.asl20;
+
+    longDescription = ''
+      Apache Pig is a platform for analyzing large data sets that consists of a
+      high-level language for expressing data analysis programs, coupled with
+      infrastructure for evaluating these programs. The salient property of Pig
+      programs is that their structure is amenable to substantial parallelization,
+      which in turns enables them to handle very large data sets.
+    '';
+
+    platforms = platforms.linux;
+    maintainers = [ maintainers.skeidel ];
+  };
+}

pkgs/top-level/all-packages.nix

···
 
   pcmanfm = callPackage ../applications/misc/pcmanfm { };
 
+  pig = callPackage ../applications/networking/cluster/pig { };
+
   shotcut = callPackage ../applications/video/shotcut { mlt = mlt-qt5; };
 
   smplayer = callPackage ../applications/video/smplayer { };