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Date: Thu, 9 Sep 2004 07:37:39 -0700 (PDT)
From: Angeshwar Deepak <angeshwar@yahoo.com>
Subject: Re: Recursive Ant and Properties
To: Ant Users List <user@ant.apache.org>
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Hi,
 
Why not try using a var in some places. You can find more info here.
http://ant-contrib.sourceforge.net/tasks/index.html
Using this a property can be made set, echoed, unset, then reset.
 
bye,
with regards,
Deepak.

Victor Volle <victor.volle.ml@swissmail.org> wrote:


I have a problem building a big project. The structure is something like 

ROOT
+----A
| +-----A1
| +-----A2
|
+----B
+-----B1
+-----B2

All projects and subprojects import a common build file. The problem starts when a property (e.g. "foo") is set in a 
project (e.g. "A") that should have a different value in a subproject ("A1"). 

The build files look like:

1: 

2: 


3: 
4:
5: 
6: 
7: ==> X <==
8: 9: .. do something ..
10: 
11: 


I could now either use subant without inheriting any property. Then I can set "foo" in A1 to another value. But I want 
to inherit some properties and I do not want to have a long explicit list of properties that must be inherited. 

I would prefer to "inherit" all properties but to be able to change the property in "A1". But when "returning" to "A" 
the values should not be changed, so best would be a sort "scoped" properties for each subant invocation: 

A --- properties-of-A
| ^
| | 
| |
A1--- properties-of-A1
So if a property is not found in properties-of-A1, properties-of-A should be searched. Setting of properties should only 
occur in the bottom-most properties. So even if a property "foo" is already defined in properties-of-A it can be set in 
properties-of-A1. But after it has been defined in A1 it can not be changed anymore as usual. 

Perhaps there is a better solution to my problem/requirements? 

I am currently considering of writing my own subant with my own PropertyHelper, but would prefer a standard solution.

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