build.xml

<?xml version="1.0" encoding="utf-8"?>
<project name="appModern" default=".help">

<fileset dir="./" id="regexp.bundle">
    <filename regex="^main.*([A-Z0-9.])w*(w.)?js" />
    <exclude name="node_modules/" />
    <exclude name="app/" />
    <exclude name="build/" />
    <exclude name=".sencha/" />
    <exclude name="packages/" />
    <exclude name="generatedFiles/" />
    <exclude name="resources/" />
  </fileset>

    <script language="javascript">
<![CDATA[
  var dir = project.getProperty("basedir"),
      cmdDir = project.getProperty("cmd.dir"),
      cmdLoaded = project.getReference("senchaloader");
  if (!cmdLoaded) {
    function echo(message, file) {
      var e = project.createTask("echo");
      e.setMessage(message);
      if (file) {
        e.setFile(file);
      }
      e.execute();
    };
    if (!cmdDir) {
      function exec(args) {
        var process = java.lang.Runtime.getRuntime().exec(args),
            input = new java.io.BufferedReader(new java.io.InputStreamReader(process.getInputStream())),
            headerFound = false,
            line;

        while (line = input.readLine()) {
          line = line + '';
          java.lang.System.out.println(line);
          if (line.indexOf("Sencha Cmd") > -1) {
            headerFound = true;
          }
          else if (headerFound && !cmdDir) {
            cmdDir = line;
            project.setProperty("cmd.dir", cmdDir);
          }
        }
        process.waitFor();
        return !!cmdDir;
      }
      if (!exec(["sencha", "which"])) {
        var tmpFile = "tmp.sh";
        echo("source ~/.bash_profile; sencha " + whichArgs.join(" "), tmpFile);
        exec(["/bin/sh", tmpFile]);
        new java.io.File(tmpFile)['delete'](); 
      }
    }
  }
  if (cmdDir && !project.getTargets().containsKey("init-cmd")) {
    var importDir = project.getProperty("build-impl.dir") || 
                    (cmdDir + "/ant/build/app/build-impl.xml");
    var importTask = project.createTask("import");

    importTask.setOwningTarget(self.getOwningTarget());
    importTask.setLocation(self.getLocation());
    importTask.setFile(importDir);
    importTask.execute();
  }
]]>
  </script>

  <target name="-before-build">
    <pathconvert pathsep="$&#123;line.separator&#125;" property="app.webpack.bundle.file" refid="regexp.bundle" />
    <basename property="app.webpack.bundle" file="$&#123;app.webpack.bundle.file&#125;"/>
  </target>

  <target name="-after-build">
    <delete failonerror="true" includeemptydirs="false" verbose="true">
      <fileset refid="regexp.bundle" />
    </delete>
  </target>

</project>