Using the <if> task (from the ant-contrib project) you
can do it like this:
<if>
<isset property="env.TEST_HOME"/>
<then>
<property name="test.home"
value="${env.TEST_HOME}/>
</then>
<else>
<property name="test.home"
value=""TO_BE_REPLACED"/>
</else>
</if>
Though I am not sure if it is less verbose, it is more
readable at least
--- Antoine Levy-Lambert <[EMAIL PROTECTED]> wrote:
> hello Kumar,
>
> this is another alternative for the same :
> <property environment="env"/>
> <property name="env.TEST_HOME"
> value="TO_BE_REPLACED"/>
>
> might work.
>
> Cheers,
>
> Antoine
>
>
>
> ----- Original Message -----
> From: "Pankaj Kumar" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Tuesday, August 09, 2005 4:41 PM
> Subject: How to test whether a particular
> environment variable is set or not
>
>
> Hi Folks,
>
> I want to set a property to the value of an
> environment variable if
> that variable is set, otherwise to a different
> string.
>
> I am able to do this with the following:
>
> <property environment="env" />
>
> <property name="test.home.0"
> value="${env.TEST_HOME}"/>
> <condition property="test.home"
> value="TO_BE_REPLACED">
> <equals arg1="${test.home.0}"
> arg2="\${env.TEST_HOME}"/>
> </condition>
> <property name="test.home"
> value="${env.TEST_HOME}"/>
>
> <target name="test">
> <echo>TEST_HOME: ${test.home}</echo>
> </target>
>
> Is there a better (read: less verbose) way?
>
> Thanks,
> Pankaj Kumar.
>
>
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