docs: public void copyLatexSrcToTempDir( File texDirectory, File tempDirectory )
          throws MojoExecutionException
      {
          try
          {
              if ( tempDirectory.exists() )
              {
                  log.info( "Deleting existing directory " + tempDirectory.getPath() );
                  FileUtils.deleteDirectory( tempDirectory );
              }
  
              log.debug( "Copying TeX source directory (" + texDirectory.getPath() + ") to temporary directory ("
                  + tempDirectory + ")" );
              FileUtils.copyDirectory( texDirectory, tempDirectory );
          }
          catch ( IOException e )
          {
              throw new MojoExecutionException( "Failure copying the TeX directory (" + texDirectory.getPath()
                  + ") to a temporary directory (" + tempDirectory.getPath() + ").", e );
          }
      }