ScriptDef

[Conor MacNeill]

I have prototyped a new task in mutant which I'd like to get feedback 
from anyone interested. It is called scriptdef and allows you to define 
a task as a script. Here is an example

<project name="scripttest" default="test">
  <libpath libraryid="antopt.script" 
file="/home/conor/dev/antdev/jakarta-ant/lib/optional/bsf.jar"/>
  <libpath libraryid="antopt.script" 
file="/home/conor/dev/antdev/jakarta-ant/lib/optional/js.jar"/>
  <import libraryid="antopt.script" name="scriptdef"/>
  <scriptdef name="scripttest" language="javascript"> <![CDATA[

  var test = "hello";
  function setTest(x) {
     test = x;
  }
  function execute()
  {
    java.lang.System.out.println("test is " + test);
    modelElementClass = context.getModelElement().getClass().getName();
    java.lang.System.out.println("model element class is " + 
modelElementClass);
  }
    ]]> </scriptdef>

  <target name = "test">
    <scripttest test="goodbye"/>
  </target>
</project>
The first two lines just provide additional classpath info for the 
script Ant library. Normally these would be in a config file rather than 
the build file but I wanted to test them out.

The result of running this is
test:
test is goodbye
model element class is org.apache.ant.common.model.BuildElement
BUILD SUCCESSFUL
Total time: 2 seconds
This is built on BSF and works with javascript (Rhino) although I have 
not tried any other scripting language.

Thoughts?
Conor

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