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From Bevan Arps <>
Subject Re: How to copy file only if file not present??
Date Thu, 11 Oct 2001 21:45:30 GMT
At 16:17 11/10/2001 -0500, you wrote:
>I want to copy a default property file from src to destination only if
>the file isn't already at destination.

If you know the exact name, use the Available task to set a property if the 
file is present, then use the unless attribute of a target to only copy if 
the file isn't there.

Something like this:

<target name="ensureDefaultProperties"
     depends="checkForDefaultProperties, copyDefaultProperties"/>

<target name="checkForDefaultProperties">
   <available "alreadyHaveDefaultProperties" 

<target name="copyDefaultProperties" unless="alreadyHaveDefaultProperties">
   <copy file="src/" 

(This is untested so the usual warnings apply if you copy and paste this)

Hope this helps,

"Programming is an Art Form that Fights Back"

Bevan Arps (<>
Senior OO Analyst, ACT Financial Systems

This communication  is confidential  to ACT  Financial  Systems  (Asia 
Pacific)  and is intended for  use only by the  addressee.   The  views and 
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represent  the  views  and  opinions of  ACT  Financial  Systems  (Asia 

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