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https://issues.apache.org/jira/browse/MNG-7395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17527098#comment-17527098
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Hudson commented on MNG-7395:
-----------------------------
Build failed in Jenkins: Maven » Maven TLP » maven » MNG-7457 #2
See
https://ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/MNG-7457/2/
> Support interpolation in extensions.xml
> ---------------------------------------
>
> Key: MNG-7395
> URL: https://issues.apache.org/jira/browse/MNG-7395
> Project: Maven
> Issue Type: New Feature
> Reporter: Christoph Läubrich
> Assignee: Michael Osipov
> Priority: Major
> Fix For: 3.8.5, 4.0.0-alpha-1, 4.0.0
>
>
> Currently an entry has to be the following form:
> {code:xml}
> <extension>
> <groupId>org.eclipse.tycho</groupId>
> <artifactId>tycho-build</artifactId>
> <version>2.7.0-SNAPSHOT</version>
> </extension>
> {code}
> This has the drawback that I always need to edit the extension.xml file and
> there is no way to specify it on the commandline.
> The proposal is to allow the follwoing:
> {code:xml}
> <extension>
> <groupId>org.eclipse.tycho</groupId>
> <artifactId>tycho-build</artifactId>
> <version>${tycho-version|2.6.0}</version>
> </extension>
> {code}
> I would then expect the following:
> # If no systemproperty with name 'tycho-version' exits, the value after the |
> is used as a default
> # If a systemproperty with name 'tycho-version' exits it is used as a version
> That way I can call mvn -Dtycho-version=2.7.0-SNAPSHOT clean install to
> override the default version.
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