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https://issues.apache.org/jira/browse/MNG-7038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17706574#comment-17706574
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ASF GitHub Bot commented on MNG-7038:
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rmannibucau commented on PR #1061:
URL: https://github.com/apache/maven/pull/1061#issuecomment-1489172763
> Imho, we need this definition before parsing any project POM , else use
cases such as https://github.com/apache/maven/pull/1059 or
https://github.com/apache/maven/pull/1062 cannot be covered. So I'm not opposed
to a different way of pinning, but not from pom files.
For the second one it is not a technical issue AFAIK.
For first one it looks it is a bit more nasty indeed but
`maven.multiModuleProjectDirectory` seems fully dedicated to this lifecycle
case and looks like having the same issues so if it will somehow assume `.mvn`
is there, I would prefer `.mvn/jvm.config` enabling a minimum interpolation
(`$PWD` or alike) which can be set in `jvm.config` this way user can set all
the system props needed there and avoid the ambiguity to introduce something
magic with a lot of corner cases.
> Introduce public property to point to a root directory of (multi-module)
> project
> --------------------------------------------------------------------------------
>
> Key: MNG-7038
> URL: https://issues.apache.org/jira/browse/MNG-7038
> Project: Maven
> Issue Type: Improvement
> Reporter: Envious Guest
> Priority: Major
> Fix For: Issues to be reviewed for 4.x
>
>
> This is a request to expose a property *maven.multiModuleProjectDirectory*
> which is currently internal (or introduce a brand new one with analogous
> functionality).
> * For a single-module project, its value should be same as *project.basedir*
> * For multi-module project, its value should point to a project.basedir of a
> root module
> Example:
> multi-module // located at /home/me/sources
> +- module-a
> +- module B
> Sample multi-module/pom.xml:
> {{<project>}}
> {{ <parent>}}
> {{ <groupId>com.acme</groupId>}}
> {{ <artifactId>corp-parent</artifactId>}}
> {{ <version>1.0.0-RELEASE</version>}}
> {{ </parent>}}
> {{ <groupId>com.acme</groupId>}}
> {{ <artifactId>multi-module</artifactId>}}
> {{ <version>0.5.2-SNAPSHOT</version>}}
> {{ <modules>}}
> {{ <module>module-a</module>}}
> {{ <module>module-b</module>}}
> {{ </modules>}}
> {{</project>}}
> The property requested should return /home/me/sources/multi-module,
> regardless of whether it's referenced in any of the child modules (module-a,
> module-b) or in multi-module.
> Note that multi-module itself has parent (e.g. installed in a local
> repository), so the new property should be smart enough to detect it and
> still point to /home/me/sources/multi-module instead of the local repository
> where the corp-parent is installed.
> The use-case for such a property could be to have a directory for combined
> report of static analysis tools. Typical example - jacoco combined coverage
> reports.
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