Apache Ant Javascript snippets

ant-js-snippets.js

//
// Ant Javascript snippets
//

import(java.io.File);
importClass(Packages.org.apache.tools.ant.types.Environment);
importClass(Packages.org.apache.tools.ant.taskdefs.Echo);

String.prototype.trim = function() {
  return this.replace(/^\s+|\s+$/g, "");
};

var local = project.createTask("local");
local.setName("result");
local.execute();

// Casting null to string returns the actual word "null"

var cmd = elements.get("command")     || "";
var dir = elements.get("dir")         || project.getBaseDir();
var foe = elements.get("failonerror") || "true";
var msg = ("" + self.text).trim()     || (elements.get("message") || "").trim();

var exec = project.createTask("exec");
exec.setExecutable(project.getProperty("the.executable"));
exec.setDir(new File(dir));
exec.setFailonerror(project.toBoolean(foe));

if ("" != cmd) {
  exec.createArg().setValue(cmd);
}

if ("" != msg) {
  exec.createArg().setValue("--message");
  exec.createArg().setValue(msg);
}

var filesets = elements.get("fileset"); // returns null or a Java ArrayList
if (null !== filesets && filesets.size() > 0) {
  // code that depends on at least one fileset being given
}

var apply = project.createTask("apply");

if (null !== filesets) {
  for each(var fileset in filesets.toArray()) {
    apply.addFileset(fileset);
  }
}

var env = new Environment.Variable();
env.setKey("MY_ENV_VAR");
env.setValue(project.getProperty("me.env.var.value"));
exec.addEnv(env);

var e   = project.createTask("echo");
var lvl = new Echo.EchoLevel();
lvl.setValue(attributes.get("level"));
e.setLevel(lvl);