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https://jira.codehaus.org/browse/ARCHETYPE-406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=338336#comment-338336
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Mark Jeffcoat commented on ARCHETYPE-406:
-----------------------------------------
I've attached a proposed fix. I generated the patch from the trunk, but it
should also apply cleanly to 2.2.
The reason this didn't work (consistently) before is that the order in which it
attempted to resolve properties was arbitrary; if a user-defined property was
already in the Context, it could be used by later Velocity expressions; if it
wasn't already in the Context, any reference to it would be interpreted
literally. The arbitrary order of evaluation is why the examples in the
comments are so confusing.
This patch forces the archetype generator to keep trying to resolve things that
look like Velocity expressions until it can no longer make any further
progress. It Works For Me, but I'd appreciate any comments.
> Support of velocity expressions for user-defined properties
> -----------------------------------------------------------
>
> Key: ARCHETYPE-406
> URL: https://jira.codehaus.org/browse/ARCHETYPE-406
> Project: Maven Archetype
> Issue Type: Bug
> Components: Plugin
> Affects Versions: 2.x
> Reporter: Bue Pierre-Christophe
> Attachments: ARCHETYPE-406.patch, sample-archetype406.tar.gz
>
>
> Standard properties (artifactId, groupId, ...) are supported in Velocity
> expressiosn, but still does not work with user defined properties. For
> example:
> <requiredProperty key="a">
> <defaultValue>${artifactId}.substring(0,1).toUpperCase()</defaultValue>
> </requiredProperty>
> with artifactId=toto will give a=T, but
> <requiredProperty key="b"/>
> <requiredProperty key="a">
> <defaultValue>${b}.substring(0,1).toUpperCase()</defaultValue>
> </requiredProperty>
> with b=toto will give a=${b}.substring(0,1).toUpperCase()
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