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Date: Tue, 30 Nov 2010 14:11:45 -0500 (EST)
From: "Scot P. Floess" <sfloess@nc.rr.com>
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To: Ant Users List <user@ant.apache.org>
Subject: Re: Set a default value to property.
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Here is something I like to use...  I macrodef'd it out so I can call it 
for many properties that require default values...

     <macrodef name="default">
         <attribute name="property"/>
         <attribute name="default"/>
         <attribute name="description" default=""/>

         <sequential>
             <condition property="@{property}" value="@{default}">
                 <not>
                     <isset property="@{name}"/>
                 </not>
             </condition>
         </sequential>
     </macrodef>

This works with stock Ant (meaning you don't need Ant-contrib or any third 
party libraries)...

To use:

<default property="SomeProperty" default="Some Default Value"/>



On Tue, 30 Nov 2010, ritchie wrote:

>
> My ant script takes a value for a property at runtime(-Denv=xxx), if the
> argument is not passed i want the value to be set as a default arbitary
> value. How to accomplish this?
>

-- 
Scot P. Floess


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