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https://issues.apache.org/jira/browse/IVYDE-257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12909243#action_12909243
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Nicolas Lalevée commented on IVYDE-257:
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About the details of the Ivy and IvyDE plugins:
* there are two "features" : Apache Ivy and Apache IvyDE, the one you see in
the updatesite
* there are 3 plugins : org.apache.ivy, org.apache.ivyde.eclipse, and
org.apache.ivy.eclipse.ant
org.apache.ivy is actually the same jar you put into ant. So in Eclipse it is
just a standard library.
org.apache.ivyde.eclipse is all the ui part and integration into Eclipse
org.apache.ivy.eclipse.ant is the repackaging of the ivy jar so Eclipse can
include Ivy into the set of available Ant tasks within Eclipse itself. You can
see it in the "Contributed Entries" of "Ant"/"Runtime"/"Classpath" preference
panel.
Do you have a customized your Ant home in Eclipse ? Do you happen to have the
Ivy jar already in ANT_HOME\lib ?
> Trying to override old definition of task buildnumber
> -----------------------------------------------------
>
> Key: IVYDE-257
> URL: https://issues.apache.org/jira/browse/IVYDE-257
> Project: IvyDE
> Issue Type: Bug
> Affects Versions: 2.1.0
> Environment: Eclipse 3.5SR2 (Ant 1.7.1) - JDK 1.6u2 + "Apache Ivy"
> bundle (org.apache.ivy.feature.feature.group) [2.0.0, 2.1.0, 2.2.0.cr1]
> Reporter: Arnauld Van Muysewinkel
>
> I create an empty project.
> The only file I have is build.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <project name="Test" default="test">
> <target name="test" description="Test">
> <buildnumber file="test_number.txt"/>
> </target>
> </project>
> I start the ant build from Eclipse and get the following output:
> <<
> Buildfile: (...)\build.xml
> Trying to override old definition of task buildnumber
> test:
> BUILD FAILED
> (...)\build.xml:5: buildnumber doesn't support the "file" attribute
> >>
> It seems that the standard ant task "buildnumber" has been overrridden by Ivy.
> Given my build file, it shouldn't even try to load ivy tasks!
> I also tried to force load Ivy tasks with a prefix (adding
> xmlns:ivy="antlib:org.apache.ivy.ant" to the project definition), but to no
> avail.
> Note that if I start the ant build from the command line, everything is fine:
> <<
> >ant -lib
> >(...)\eclipse-3.5\plugins\org.apache.ivy.eclipse.ant_2.2.0.cr1_20100629224905.jar
> > test
> [-lib
> (...)\eclipse-3.5\plugins\org.apache.ivy.eclipse.ant_2.2.0.cr1_20100629224905.jar]
> [-lib
> (...)\eclipse-3.5\plugins\org.apache.ivy.eclipse.ant_2.2.0.cr1_20100629224905.jar
> test]
> Buildfile: build.xml
> test:
> BUILD SUCCESSFUL
> Total time: 0 seconds
> >ls
> build.xml test_number.txt
> >cat test_number.txt
> #Build Number for ANT. Do not edit!
> #Tue Sep 14 14:36:15 CEST 2010
> build.number=2
> >>
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