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Date: Mon, 4 Oct 2004 13:16:36 -0700 (PDT)
From: Matt Benson <gudnabrsam@yahoo.com>
Subject: Re: Thinking in Ant...
To: Ant Users List <user@ant.apache.org>
In-Reply-To: <m3y8imp7kk.fsf@bodewig.bost.de>
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As a matter of curiosity, whenever a nested
<redirector> element gets added to <concat>, a builtin
solution will exist to the given problem.  My personal
workaround would use ant-contrib's <for> and <var>
with <concat> and <pathconvert>...

-Matt

--- Stefan Bodewig <bodewig@apache.org> wrote:

> On Mon, 4 Oct 2004, Richard Russell
> <richard.russell@db.com> wrote:
> 
> > I run into these issues so regularly that I cannot
> help but assume
> > that I am simply not 'thinking in Ant', and am
> therefore fighting
> > against its design rather than working with it.
> 
> Sounds like it.
> 
> One of the major points seems to be that you want to
> drive the
> execution instead of having ant make the decisions. 
> You usually don't
> code loops in Ant but use a task that will
> implicitly perform the
> loop.
> 
> > for file in `ls ${dir1}/*.DAT`; do 
> >   cat ${dir1}/${file} | sed -e
> 's/@parameter@/value/' >>
> >   ${dir2}/${file}
> > done
> 
> translates into a single <copy> with a nested
> <replactokens> if it
> wasn't for the second ">".  There isn't any append
> mode in <copy>.  Is
> this a real world requirement?  Must be, otherwise
> you wouldn't have
> written a task for it.
> 
> If you can express it as a shell script, you can
> always use <exec> or
> <apply>, but then your platform independence has
> gone.
> 
> Ant really isn't the best fit if your process is
> extremely procedural,
> it usually isn't even though your experience says it
> is in you case.
> 
> The main mismatch I really see is that you want to
> express yourself in
> loops while Ant wants to work on collections.
> 
> Stefan
> 
>
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