[jira] [Updated] (MNG-7038) Introduce public properties to point to the root and top directories of (multi-module) project

["Guillaume Nodet (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MNG-7038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guillaume Nodet updated MNG-7038:
---------------------------------
    Fix Version/s: 4.0.0

> Introduce public properties to point to the root and top directories of (multi-module) project
> ----------------------------------------------------------------------------------------------
>
>                 Key: MNG-7038
>                 URL: https://issues.apache.org/jira/browse/MNG-7038
>             Project: Maven
>          Issue Type: Improvement
>            Reporter: Envious Guest
>            Assignee: Guillaume Nodet
>            Priority: Major
>             Fix For: 4.0.0-alpha-7, 4.0.0
>
>
> This issue introduces three properties:
>  * {{project.rootDirectory}}: {_}the project's directory or parent directory containing a {{.mvn}} subdirectory or a {{pom.xml}} flagged with the {{root="true"}} attribute{_}. If no such directory can be found, accessing the rootDirectory property will throw an `IllegalStateException`.
>  * {{session.topDirectory}} : {_}the directory of the topmost project being built, usually the current directory or the directory pointed at by the {{\-f}}/{{\-\-file}} command line argument{_}. The {{topDirectory}} is similar to the {{executionRootDirectory}} property available on the session, but renamed to make it coherent with the new {{rootDirectory}} and to avoid using _root_ in its name. The {{topDirectory}} property is computed by the CLI as the directory pointed at by the {{\-f}}/{{\-\-file}} command line argument, or the current directory if there's no such argument.
>  * {{session.rootDirectory}} : {_}the rootDirectory for the topDirectory project{_}.
> The {{topDirectory}} and {{rootDirectory}} properties are made available on the {{MavenSession}} / {{Session}} and deprecate the {{executionRootDirectory}} and {{multiModuleProjectDirectory}} properties. The {{rootDirectory}} should never change for a given project and is thus made available for profile activation and model interpolation (without the {{project.}} prefix, similar to {{basedir}}). The goal is also to make the {{rootDirectory}} property also available during [command line arguments interpolation|https://issues.apache.org/jira/browse/MNG-6303].
> A {{root}} boolean attribute is also added to the model to indicate that the project is the root project. This attribute is only supported if the _buildconsumer_ feature is active and removed before the pom is installed or deployed. It can be used as an alternative mechanism to the {{.mvn}} directory.



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