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From Clifton Craig <ccr...@gbg.com>
Subject Re: How to execute an AntCall for each property in a set
Date Fri, 11 Nov 2005 18:26:14 GMT
Matt,

Thanx for the reply. However I was looking for a more standard approach 
avoiding antcontrib. I want my build to be as simple as possible without the 
need to pile on a bunch of additional library code as I took the latter 
approach before and wound up in a lot of trouble down the line. I guess I 
should explain that I am basically rewriting our existing build that I 
screwed up a couple of years ago when I was fresh to Ant and I'm trying to 
incorporate best practices. I question my current approach as well. I'm sure 
many would suggest <insert name of Ant alternative here> for what I'm doing 
but I'd like to stick with vanilla Ant. That's Ant sans contrib libs and with 
as little customization as possible.

My builds (I'm using multiple builds for sub-components of our project) should 
basically auto-include all dependencies for the sub-component they operate on 
prior to starting their process. The idea is to define the properties in a 
dependencies.list file which is basically a Java properties file listing 
external libs and their equivalent version used in the sub-component. Later 
(I the distant future that may never come) I have ideas to process the 
dependencies list to generate a graphical tree outlining which libs our 
project depends on and where (in which component) those dependencies occur. 
I'm just trying to be smart about managing them up front rather than just 
dumping them (as we used to) in some lib folder on the filesystem and 
forgetting about them. Any clues?

-- 
Clifton C. Craig, Software Engineer
ccraig@gbg.com
On Friday 11 November 2005 12:33 pm, Matt Benson wrote:
> Hmm... Ant 1.7 in combination with antcontrib <for> is
> designed to support this.  Assuming you have to use
> production releases, I would write either:
>
> (a)  a custom task to convert a property set to a list
> or
> (b)  a custom type to wrap a PropertySet ps, with
>     public Iterator iterator() {
>         return ps.getProperties().values().iterator();
>     }
>
> I would pass the result to <for> in either case.  (b)
> would ultimately be similar to the way Ant 1.7 works.
>
> HTH,
> Matt
>
> --- Clifton Craig <ccraig@gbg.com> wrote:
> > I need to iterate a propertyset which lists a
> > project's dependencies. It's
> > basically just a list of name/val pairs matching a
> > 3rd party product (or open
> > source jar) with a version. I want to execute an
> > Antcall or something of the
> > like to ask our jar repository for the proper jar
> > file so the build can
> > procede after the dependencies have been met. Any
> > good advice on this? Thanx
> > in advance!
> >
> > --
> > Clifton C. Craig, Software Engineer
> > ccraig@gbg.com
>
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