webxml-mergetool

Purpose:

Takes an existing web.xml deployment descriptor (original file) and 
a web.xml fragment (merge file) and inserts those elements of merge file
which are not already in original file into original file and save the
combined content in destination file.

Usage:

The tool acts as an ANT task. 

At beginning of build.xml: 

    <taskdef    name="webxmlmerge"
           classname="com.arsdigita.ant.WebXMLMergeTask"
           classpath="webxml-mergetool.jar"/>

To use add at appropriate location: 


  <webxmlmerge originalfile="${ccm.home.dir}/WEB-INF/web.xml"
      mergefile="${ccm.repo.dir}/${packagename}/web/WEB-INF/web.${packagename}.xml" 
       destfile="${ccm.home.dir}/WEB-INF/.merged.web.xml"    /> 


Eventually followed by

  <copy  file="${ccm.home.dir}/WEB-INF/.merged.web.xml"
       tofile="${ccm.home.dir}/WEB-INF/web.xml"  
    overwrite="yes"/>
  <delete file="${ccm.home.dir}/WEB-INF/.merged.web.xml"/>