<property environment="env" />
<property name="env.PROJECT_HOME" value="c:\project"/>
<property name="project.home" value="env.PROJECT_HOME"/>

because of property immutability, if it gets set with the environment (1st
line above) then it won't get set with the 2nd line.  The 3rd line just puts
it into a cleaner name - although you could stick with env.PROJECT_HOME
instead of project.home.

Ain't that better?!  :)

    Erik



----- Original Message -----
From: "Vishweshwar, Ghanakota" <[EMAIL PROTECTED]>
To: "'Ant Users List'" <[EMAIL PROTECTED]>
Sent: Friday, November 30, 2001 7:48 PM
Subject: RE: setting property


> Here is the scenario:
> I am defining global properties for my project in a separate file, which I
> will include in the individual build files using external entities in XML.
> I also want to give the flexibility of overriding these values thru'
> environment variables.
> something like this:
> <property environment="env" />
> <property name="project.home" value="c:\project"
> unless="${env.PROJECT_HOME}" />
>
> sorry for not being descriptive enough in the first mail!
>
> thanks,
> vishu
>
> > -----Original Message-----
> > From: Erik Hatcher [mailto:[EMAIL PROTECTED]]
> > Sent: Friday, November 30, 2001 4:30 PM
> > To: Ant Users List
> > Subject: Re: setting property
> >
> >
> > Would you mind sharing a bit more of the specific scenario and problem
> > you're trying to solve with this request?  Perhaps there are
> > other ways of
> > accomplishing what you're after.
> >
> >
> > ----- Original Message -----
> > From: "Vishweshwar, Ghanakota" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, November 30, 2001 3:51 PM
> > Subject: setting property
> >
> >
> > > Hi All,
> > > Is there anyway to set a global property (not thru' -D) only if an
> > > environment variable is not set? I can't use "condition"
> > since it's not
> > > child of "project".
> > >
> > > thanks,
> > > vishu
> > >
> > > "MMS <firstam.com>" made the following
> > >  annotations on 11/30/01 12:52:02
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> "MMS <firstam.com>" made the following
>  annotations on 11/30/01 16:49:12
> --------------------------------------------------------------------------
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