Return-Path: 
 <user-return-54388-apmail-ant-user-archive=ant.apache.org@ant.apache.org>
Delivered-To: apmail-ant-user-archive@www.apache.org
Received: (qmail 53510 invoked from network); 24 Jan 2006 21:00:49 -0000
Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199)
  by minotaur.apache.org with SMTP; 24 Jan 2006 21:00:49 -0000
Received: (qmail 99185 invoked by uid 500); 24 Jan 2006 21:00:44 -0000
Delivered-To: apmail-ant-user-archive@ant.apache.org
Received: (qmail 99145 invoked by uid 500); 24 Jan 2006 21:00:44 -0000
Mailing-List: contact user-help@ant.apache.org; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:user-unsubscribe@ant.apache.org>
List-Help: <mailto:user-help@ant.apache.org>
List-Post: <mailto:user@ant.apache.org>
List-Id: "Ant Users List" <user.ant.apache.org>
Reply-To: "Ant Users List" <user@ant.apache.org>
Delivered-To: mailing list user@ant.apache.org
Received: (qmail 99134 invoked by uid 99); 24 Jan 2006 21:00:44 -0000
Received: from asf.osuosl.org (HELO asf.osuosl.org) (140.211.166.49)
    by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Jan 2006 13:00:44 -0800
X-ASF-Spam-Status: No, hits=0.5 required=10.0
	tests=DNS_FROM_RFC_ABUSE
X-Spam-Check-By: apache.org
Received-SPF: pass (asf.osuosl.org: local policy)
Received: from [68.142.200.154] (HELO web30901.mail.mud.yahoo.com)
 (68.142.200.154)
    by apache.org (qpsmtpd/0.29) with SMTP; Tue, 24 Jan 2006 13:00:42 -0800
Received: (qmail 77520 invoked by uid 60001); 24 Jan 2006 21:00:21 -0000
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=yahoo.com;
  h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding;
  b=uIn+l12KX1uHV08yAJxRAsOXOLMXc4PYiv21PnA8ow+ueqj2kfwebHqk13cDa+hW3f55qWVtiGGFee9XH7JG+68u9pmSJiS92oUJjpXxRtkEZadSMwU593/S7Vz5choVJGFGqDwHtzrWACVrfOTKj5k/vVHy8BxVYhL1278F+Pg=
  ;
Message-ID: <20060124210021.77517.qmail@web30901.mail.mud.yahoo.com>
Received: from [66.10.233.130] by web30901.mail.mud.yahoo.com via HTTP;
 Tue, 24 Jan 2006 13:00:21 PST
Date: Tue, 24 Jan 2006 13:00:21 -0800 (PST)
From: Matt Benson <gudnabrsam@yahoo.com>
Subject: Re: Checking for non-existence of environment variable
To: Ant Users List <user@ant.apache.org>
In-Reply-To: <43D69423.7020104@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-Virus-Checked: Checked by ClamAV on apache.org
X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N

uh... no.  Try it.  Then reread
http://ant.apache.org/manual/CoreTasks/fail.html .

-Matt

--- Sergei Dubov <sdubov@gmail.com> wrote:

> The whole point is that ${env.NO_VALUE} will return
> ${env.NO_VALUE} as 
> its value if it doesn't exist...
> 
> -Serge.
> 
> Burgess, Benjamin wrote:
> > Will <fail unless="env.NO_VALUE"/> work for you?
> > 
> > Ben
> > 
> > -----Original Message-----
> > From: Sergei Dubov [mailto:sdubov@gmail.com] 
> > Sent: Tuesday, January 24, 2006 3:48 PM
> > To: user@ant.apache.org
> > Subject: Checking for non-existence of environment
> variable
> > 
> > Hi guys,
> > 
> > I am sure this question has been asked before. But
> I did my research and
> > 
> > found no answers whatsoever.
> > 
> > Basically I am trying to check for existence of an
> environment variable.
> > 
> > And if it is not defined I want the script to
> fail.
> > 
> > <project name="base" basedir="."
> default="echo-env">
> >      <property environment="env"/>
> > 
> >      <target name="echo-env">
> >          <echo>${env.NO_VALUE}</echo>
> >      </target>
> > </project>
> > 
> > Basically this will return "${env.NO_VALUE}".
> > 
> > And potential <available> check will think it
> actually HAS value. Is 
> > there any way to make Ant recognize that
> System.getenv("NO_VALUE") 
> > returns null?
> > 
> > Thank you very much beforehand,
> > 
> > Serge.
> > 
> >
>
---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> user-unsubscribe@ant.apache.org
> > For additional commands, e-mail:
> user-help@ant.apache.org
> > 
> > 
> > 
> >
>
**************************************************************
> > This message, including any attachments, contains
> confidential information intended for a specific
> individual and purpose, and is protected by law.  If
> you are not the intended recipient, please contact
> sender immediately by reply e-mail and destroy all
> copies.  You are hereby notified that any
> disclosure, copying, or distribution of this
> message, or the taking of any action based on it, is
> strictly prohibited.
> > TIAA-CREF
> >
>
**************************************************************
> > 
> > 
> >
>
---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> user-unsubscribe@ant.apache.org
> > For additional commands, e-mail:
> user-help@ant.apache.org
> > 
> > 
> 
>
---------------------------------------------------------------------
> To unsubscribe, e-mail:
> user-unsubscribe@ant.apache.org
> For additional commands, e-mail:
> user-help@ant.apache.org
> 
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
For additional commands, e-mail: user-help@ant.apache.org