How to set Ant properties based on variables in Eclipse?

Question

I have a common problem and there are probably countless ways to solve it. I\'m looking for an elegant, simple solution to this typical scenario:

I have a project in Ec

Answer 1

For my project archieve.

ProjectName 
 |_ ant 
     |_ ant.xml

Your case can just simply change the ant xml file, the

Then I can get the project root using variable of

e.g.