Looping over a collection of values in Ant?

[Chris Corbyn]

I have a series of Amazon EC2 instances I wish to hold the addresses for in my build.xml file. For a particular target I would like to loop through all of these addresses and issue a command to the server. I can do it for one at a time; but I'm not sure how to create the equivalent of a Collection in the build.xml and then how to loop through that Collection.

In pseudo:

<collection id="servers">
  <item value="server-one.tld" />
  <item value="server-two.tld" />
  <item value="server-three.tld" />
</collection>
 
<target name="updateinstances">
  <foreach collectionref="servers" ...>
    <!-- do something -->
  </foreach>
</target>

I'm sure it's staring me in the face when reading the documentation but I'm missing it. Any hints?

[Purushoth Thambu]

Check ant-contrib from SF.

http://ant-contrib.sourceforge.net/ant-contrib/manual/tasks/index.html

[Chris Corbyn]

Brilliant, thank you