Le 28 août 08 à 18:51, Xavier Hanin a écrit :
On Tue, Aug 26, 2008 at 7:30 PM, Nicolas Lalevée <[EMAIL PROTECTED]
wrote:
Le 26 août 08 à 07:50, akpraha a écrit :
Hi,
I'm pretty much fed up with Maven and wanted to give Ivy a try.
I've
installed IvyDE/Ivy into Eclipse 3.4, and after a bit of
configuration
have
got it using my local maven repo instead of the public - so far,
so good.
However, when I try to run my ant build from within Eclipse, I get
the
following error that the jar file containing the task cannot be
found. I
would expect that Ivy's osgi bundle should be able to contribute a
task to
Eclipse's built-in ant, however it does not appear to do so. I've
seen
various bits of advice to copy ivy.jar to the ant plugin's lib
directory,
or
to add it to the Ant classpath in eclipse preferences -- BUT, I
really
don't
want to manually maintain the version of Ivy used, esp. when it's
already
being installed automatically by the IvyDE plugin.
Any thoughts on this?
This is an interesting idea.
The ant classpath contribution was done via the IvyDE plugin when
it was
packaged with Ivy included. Since Ivy was packaged as a standalone
OSGi
bundle, it was not possible anymore for the IvyDE plugin to
contribute to
the ant classpath. So to avoid classpath issues, the solution was
taken to
remove that contribution and let the user handle manually.
Now that you are raising your troubles, I think there can be a
solution:
make the ivy bundle itself contribute to the ant classpath of
Eclipse.
Basically it is just about a plugin.xml and an optional dependency on
org.eclipse.ant.core. There is actually one blocker issue: the ivy
packaging
have to change to be a jar in a jar.
I don't know what would be the impact of a such change. This might
deserve
a jira entry if you are willing to.
I don't think having Ivy itself provide a plugin.xml requires to
have it a
jar in a jar, I think an eclipse plugin can provide its classes in the
plugin jar, it's not required to be a jar in a jar.
To contribute to the ant classpath, it does. the eclipse ant extension
point needs a reference to jar included in the bundle that contributes
it, so there should be a jar in a bundle/jar.
That being said, this
contribution was painful due to classloading issues, which required
to make
sure that contributed Ant classes were not part of the plugin
contributing
the Ant classpath entry. Hence we needed to have to distribution of
Ivy:
ivy-core.jar, containing everything but ant related classes, and
ivy.jar
with everything included.
I have done some little tests, it seems to work, but I ran it in a
very special environment: in debug, with an opened Ivy project
containing an ivy.jar. And looking at the extension point description,
effectively something weird is going on with the class loaders:
Description: Allows plug-ins to define arbitrary JARs for use by the
Ant infrastructure. These JARs are put into the Ant classpath at
runtime. Besides the JAR, the plug-in classloader of the plug-in
providing the JAR is also added to the classpath.
I'm not in favor of reverting to this state just
to let eclipse users avoid configuring their eclipse Ant classpath
manually.
I am not either. And I am not a fan either of changing the packaging
of Ivy into a jar of a jar.
But if eclipse improve the classpath contribution issues, I'd be ok
to add a
plugin.xml in Ivy itself.
maybe another solution is to have a third plugin, a plugin dedicated
to the ant classpath contribution which would only contain an ivy.jar
and a plugin.xml.
I will take some further look to that class loader things.
Nicolas
Xavier
Nicolas
-Andy
BUILD FAILED
/home/andy/projects/www/TournamentWeb/build/build.xml:19: Problem:
failed
to
create task or type antlib:org.apache.ivy.ant:retrieve
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have
taken
place.
This appears to be an antlib declaration.
Action: Check that the implementing library exists in one of:
-/opt/eclipse/eclipse-3.4/plugins/
org.apache.ant_1.7.0.v200803061910/lib
-/home/andy/.ant/lib
-a directory added on the command line with the -lib argument
--
View this message in context:
http://www.nabble.com/%3Civy%3Aretrieve-%3E-task-in-Eclipse-w--IvyDE-tp19156149p19156149.html
Sent from the ivy-user mailing list archive at Nabble.com.
--
Xavier Hanin - Independent Java Consultant
http://xhab.blogspot.com/
http://ant.apache.org/ivy/
http://www.xoocode.org/
