[jira] [Commented] (BEAM-1984) Enable dependency analysis of non-compile dependencies

["Kenneth Knowles (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-1984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16075695#comment-16075695 ] 

Kenneth Knowles commented on BEAM-1984:
---------------------------------------

I think the reason we added this was specifically for {{runtime}} dependencies, which actually the plugin should ignore already since sort of by definition you cannot find a reference for. It could be that the plugin actually works and we (probably me) just set it up wrong.

> Enable dependency analysis of non-compile dependencies
> ------------------------------------------------------
>
>                 Key: BEAM-1984
>                 URL: https://issues.apache.org/jira/browse/BEAM-1984
>             Project: Beam
>          Issue Type: Improvement
>          Components: build-system
>    Affects Versions: Not applicable
>            Reporter: Ismaël Mejía
>            Assignee: Ismaël Mejía
>            Priority: Minor
>
> In the Beam parent pom at this moment we have a configuration on the maven dependency plugin to ignore the verification of non-compile dependencies so unused or badly configured dependencies that are used only for test or runtime purposes are not reported.
> {code:xml}
>               <!-- Ignore runtime-only dependencies in analysis -->
>               <ignoreNonCompile>true</ignoreNonCompile>
> {code}
> I discovered this case when I executed:
> {code}
> 	mvn clean install -Dmaven.test.skip=true
> {code}
> Notice that this is really particular because this does not compile the tests classes, so it can detect when the ‘main’ classes are not using some code. This is different from the behavior of:
> {code}
> 	mvn clean install -DskipTests=true
> {code}
> That does not complain because skipTests compiles the tests.
> For the first case (maven.test.skip) I got a warning ‘Unused declared dependencies found’ so with this I discovered the test/runtime only dependencies that are not correctly scoped. I will do a PR to fix this, because we can get rid of compile dependencies that are test or runtime only.



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