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From "Fernandes, Gerard" <gerard.fernan...@lehman.com>
Subject RE: Any way to have Ivy create an Ant path?
Date Thu, 12 Jun 2008 15:09:22 GMT

There's exactly that in Ivy - has been in there for a long time
(probably since the very beginning).

Look at the documentation at
http://ant.apache.org/ivy/history/latest-milestone/use/cachepath.html

Gerard 

-----Original Message-----
From: Dave [mailto:davidcorley@gmail.com] 
Sent: 12 June 2008 16:04
To: ivy-user@ant.apache.org
Subject: Any way to have Ivy create an Ant path?

Hey all,
I can't find anything about this in the documentation so I thought I'd
ask here.
Our current build setup uses tools like PMD, Findbugs, etc.
Take for example PMD.
It has dependencies on a couple of other libraries.
Normally the libraries required for PMD are in the same directory as the
PMD jar, which allows you to created a classpath for PMD with something
like the
following:

<path id="pmd.classpath">
<fileset dir="${pmd.lib.dir}" includes="*.jar"/> </path> <taskdef
name="pmd" classname="net.sourceforge.pmd.ant.PMDTask"
classpathref="pmd.classpath"/>

That's the current way of doing things. In the Ivy world, the extenal
libs that PMD depends on would and should not be stored in the same
directory as PMD.
This means you have to craft a more complex classpath for PMD, and
repeat for each version of PMD, if each new version of PMD uses newer
third party libraries.

A solution to this problem would be to have Ivy generate the classpath
for the user. The user could pass in the name,version,and configuration
it needs a classpath for, and ivy can generate an Ant path with a
user-specified path id.
Something like:

<ivy:path org="pmd "module="pmd" version="4.2.2" conf="default"
pathid="pmd.classpath"/>
or
<ivy:path file="pmd/pmd/4.2.2/ivy.xml" conf="default"
pathid="pmd.classpath"/>

allowing me to then use:
<taskdef name="pmd" classname="net.sourceforge.pmd.ant.PMDTask"
classpathref="pmd.classpath"/>


Is there anything like this in Ivy now? If not does anyone else think
it's a good idea?

Any thoughts/comments appreciated :-)

--
There are 10 types of people in the world.
Those who understand binary and those who do not.
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