ant task to download and run luke

[Ryan McKinley]

Hi-

I know luke is not included in lucene/solr because it has GPL  
dependencies...  however, are we able to include an ant task that  
downloads the relevant jar files and starts luke?

The java webstart version is great if solr happens to be on the same  
lucene version, but I often stumble to get things all synked up.

Here is an ant task to do this...

(it needs to download lucene-misc because luke appears to use  
SweetSpotSimilarity)

  <!-- LUKE -->
  <available file="luke/luke-0.9.1.jar" property="luke.jar.exists" />
  <target name="luke-download" unless="luke.jar.exists">
    <mkdir dir="luke"/>
    <get src="http://www.getopt.org/luke/luke-0.9.1/luke-0.9.1.jar";
          dest="luke/luke-0.9.1.jar"/>
    <get src="http://people.apache.org/repo/m2-snapshot-repository/org/apache/lucene/lucene-misc/2.4-SNAPSHOT/lucene-misc-2.4-SNAPSHOT.jar 
"
          dest="luke/lucene-misc-2.4-SNAPSHOT.jar" />
  </target>
        
  <target name="luke" depends="luke-download">
    <java fork="true"
          classname="org.getopt.luke.Luke"
          logError="true"
          failonerror="true">
        <classpath>
        <fileset dir="${lib}">
          <include name="*.jar" />
        </fileset>
              <fileset dir="luke">
          <include name="luke-0.9.1.jar"/>
          <include name="lucene-misc-2.4-SNAPSHOT.jar"/>
              </fileset>
       </classpath>
    </java>
</target>