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http://jira.codehaus.org/browse/MNG-2290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_103841
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William Ferguson commented on MNG-2290:
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Sorry Jorge, you lost me.

The URL *is* inherited (if it is not specified in the child POM), but at 
execution time (in the child) it becomes the inherited URL with the 
${artifactId} specified in the child POM appended to it.

So deployment of the site for the parent POM is to an entirely different 
location (the root of the projects website) than for any children.
Ie there is no consistent site deployment location available to the parent POM 
and child projects.

IMHO it is not useful to attempt to inherit the SCM settings as the 
release-plugin needs to rewrite them in the child POM during release in any 
case. I think thats what you are referring to in your last 2 sentences. Correct 
me if I'm wrong.

But the thing thats a real killer (for us) is that because ${artifactId} is 
appended to the URLs we cannot craft an inheritable URL that includes the child 
project's version.

> Generated URLs in POMs of child modules
> ---------------------------------------
>
>                 Key: MNG-2290
>                 URL: http://jira.codehaus.org/browse/MNG-2290
>             Project: Maven 2
>          Issue Type: Improvement
>          Components: Inheritance and Interpolation
>    Affects Versions: 2.0.4
>            Reporter: Joerg Schaible
>             Fix For: 2.0.x
>
>
> Maven has quite some elements where a URL or a path is modified automatically 
> for child POMs (the ones I am currently aware of):
> - url
> - scm/connection
> - scm/developerConnection
> - scm/url
> - distributionManagement/site/url
> While expanding this path with "/${pom.artifactId}" sounds reasonable, this 
> approach fails badly for complex projects with more hierarchy levels. Suppose 
> we have a directory structure like:
> * project
> ** core
> *** provider
> **** commons
> **** impl1
> In this hierarchy all POMs for _project_, _core_ and _provider_ are of 
> package type _pom_, while _commons_ and _impl1_ is of type _jar_. The 
> "artifactId" approach now simply assumes that all POMs in the hierarchy are 
> named like the current directory. This does simply not match. Suppose those 
> jar artifacts are used in an enterprise or web app. Then every artifact is 
> located in one single directory and therefore the names have to be unique. 
> But if you decide to take an artifact name different to the directory name, 
> you have to add the definition in every POM, because the scm elements are 
> simply wrong.
> An even worse scenario are components that can be provided using different 
> technologies. We have a lot of such structures:
> * component
> ** jar
> ** war
> ** ear
> * *_jar_:* the core functionality
> * *_war_:* the core functionality integrated and eccessible with a web 
> application
> * *_ear_:* the complete component as enterprise app, if it makes sense to 
> deploy the functionality on a different app server
> _component_ has a POM of package type _pom_; _jar_, _war_ and _ear_ have POMs 
> with the according package type. All of the three POMs use the same 
> artifactId though. In this case not only the scm elements break, but also the 
> URLs for the site, since they are all the same for all three artifacts.
> All of this could have been avoided, if the expanded part is not the 
> artifactId, but the basename of the current directory. Especially for the scm 
> elements, this is IMHO the only valid assumption.
> It would already help us, if this auto-expansion could be turned off to allow 
> the definition of a single property in each POM for a correct interpolation 
> of those values, but there seems no such option ^1^. So you *have to* add 
> those elements under all circumstances into every POM.
> 1) The _tagBase_ of the release plugin does no such auto-expansion, which 
> makes it quite easy to use a property for it, that can be set individually in 
> every POM without adding any plugin configuration.

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