>From my reading of the documentation, <concat> doesn't allow nested
<redirector>s.
I tried using <for> and <var>, but found that I couldn't do much with
<var>, as it appeared that the only way I could set the var was with the
<var> task, and I needed to use functionality in <propertycopy> to get
double-redirection. I can't *quite* recall why this didn't work, but it
didn't. If you like, I'll try to recreate what I was trying to do, and see
if I can demonstrate the problem I had...
I'm not sure what <pathconvert> can do for me here... A mapper sounds more
useful (eg <globmapper from="${dir1}/*" to="${dir2}/*"/>), but I don't think it can be
used with <concat> ...
I keep coming across things that i could really use, but they can never be
combined in the way I want.
Cheers,
Richard Russell
Deutsche Bank AG London
Global Markets Customer Solutions
Office: +44 (0)20 7545 8060
Mobile: +44 (0)79 0661 2237
Matt Benson <[EMAIL PROTECTED]>
10/04/2004 09:16 PM
Please respond to "Ant Users List"
To: Ant Users List <[EMAIL PROTECTED]>
cc:
Subject: Re: Thinking in Ant...
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 <[EMAIL PROTECTED]> wrote:
> On Mon, 4 Oct 2004, Richard Russell
> <[EMAIL PROTECTED]> 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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