[jira] Commented: (MNG-2966) Use optional transitive dependencies versions as dependencyManagement does

["Daniel Beland (JIRA)" <ji...@codehaus.org>]

    [ http://jira.codehaus.org/browse/MNG-2966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_94542 ] 

Daniel Beland commented on MNG-2966:
------------------------------------

yes it would do, I tried to explain different alternatives as I don't know which one is easier to implement and would fit better in the maven architecture

> Use optional transitive dependencies versions as dependencyManagement does
> --------------------------------------------------------------------------
>
>                 Key: MNG-2966
>                 URL: http://jira.codehaus.org/browse/MNG-2966
>             Project: Maven 2
>          Issue Type: Improvement
>          Components: Dependencies
>    Affects Versions: 2.0.6
>            Reporter: Daniel Beland
>
> I would like to be able to add an includes statement on a dependency to get its optional dependency(ies).
> ie:
>     <dependency>
>       <groupId>hibernate</groupId>
>       <artifactId>hibernate</artifactId>
>       <version>3.2.1.ga</version>
>       <inclusions>
>         <inclusion>
>           <groupId>jgroups</groupId>
>           <artifactId>jgroups-all</artifactId>
>           <scope>runtime</scope>
>           <optional>false</optional>
>         </inclusion>
>       </inclusions>
>     </dependency>
>  For example, I use hibernate 3.2.1.ga, it has an optional dependency on jgroups-all-2.2.8.
> I would like to be able to add an inclusion statement on the hibernate lib to tell that I want to include jgroups as well. 
> The main reason for this is that I want the same version as specified in the hibernate pom.
> This way, upgrading hibernate would also upgrade my version of jgroups at the same time.
> Obviously, we need to be able to define a scope and optional attribute as well (not inherited)
> Or maybe we could set the dependency explicitly in the pom without specifying the version and have maven resolve the version from the nearest source (as it does normally) automatically or we specify where to resolve it.
> ie something like:
>     <dependency>
>       <groupId>jgroups</groupId>
>       <artifactId>jgroups-all</artifactId>
>       <! -- either maven resolves the version from the nearest source automatically or we need to tell maven where to find it -->
>       <versionLookup>
>         <groupId>hibernate</groupId>
>         <artifactId>hibernate</artifactId>
>         <!-- maven will resolve the version from the hibernate pom as long as hibernate is already a dependency of my project (no version needed)
>                or we specify which version from a property (to have it defined only once in the pom) -->
>         <version>${hibernate.version}</version>
>       </versionLookup>
>       <scope>runtime</scope>
>       <optional>false</optional>
>     </dependency>

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