uh... no. Try it. Then reread
http://ant.apache.org/manual/CoreTasks/fail.html .
-Matt
--- Sergei Dubov <[EMAIL PROTECTED]> wrote:
> The whole point is that ${env.NO_VALUE} will return
> ${env.NO_VALUE} as
> its value if it doesn't exist...
>
> -Serge.
>
> Burgess, Benjamin wrote:
> > Will <fail unless="env.NO_VALUE"/> work for you?
> >
> > Ben
> >
> > -----Original Message-----
> > From: Sergei Dubov [mailto:[EMAIL PROTECTED]
> > Sent: Tuesday, January 24, 2006 3:48 PM
> > To: [email protected]
> > Subject: Checking for non-existence of environment
> variable
> >
> > Hi guys,
> >
> > I am sure this question has been asked before. But
> I did my research and
> >
> > found no answers whatsoever.
> >
> > Basically I am trying to check for existence of an
> environment variable.
> >
> > And if it is not defined I want the script to
> fail.
> >
> > <project name="base" basedir="."
> default="echo-env">
> > <property environment="env"/>
> >
> > <target name="echo-env">
> > <echo>${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.
> >
> >
>
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