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http://jira.codehaus.org/browse/MRELEASE-212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_91963
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William Ferguson commented on MRELEASE-212:
-------------------------------------------

Thanks Emmanuel - that does allow the property to get passed in.

I was trying to get hold of the value of the dryRun parameter that can be 
passed to the maven-release-plugin as I will need to perform different 
behaviour depending on whether its a dry run or not - which I expect is typical.

But I think development of my plugin will have to go on hold until 
http://jira.codehaus.org/browse/MRELEASE-213 is resolved in some form. I really 
need access to the SCM Release tag specified by the user. Is there no way to 
retrieve this value via a MavenProject property?

> Mojo executed using preparationGoals does not get its parameters populated on 
> execution
> ---------------------------------------------------------------------------------------
>
>                 Key: MRELEASE-212
>                 URL: http://jira.codehaus.org/browse/MRELEASE-212
>             Project: Maven 2.x Release Plugin
>          Issue Type: Bug
>    Affects Versions: 2.0-beta-4
>            Reporter: William Ferguson
>
> I have a Mojo with a single String parameter
>       /**
>        * @parameter expression="${myProp}"
>        */
>       private String myProp;
> If this Mojo is executed directly, eg
>   mvn myplugin:mygoal -DmyProp=foo
> then the Mojo receives the value of myProp at runtime.
> If my Mojo is executed via maven-release-plugin preparationGoals eg
>                       <plugin>
>                               <groupId>org.apache.maven.plugins</groupId>
>                               <artifactId>maven-release-plugin</artifactId>
>                               <configuration>
>                                       <preparationGoals>
>                                               clean integration-test 
> myplugin:mygoal
>                                       </preparationGoals>
>                               </configuration>
>                       </plugin>
> the the Mojo is not injected with the value of MyProp at runtime.
> Now this could just be because there is some extra config that I need to do 
> that I have missed. I am a Maven newbie.
> But I've followed all the doco for maven-release-plugin as well as anything I 
> could find on building plugins.
> So if its my bad, please point me in the right direction.

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