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https://issues.apache.org/jira/browse/MPH-144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16420775#comment-16420775
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Michael Osipov commented on MPH-144:
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The title implies that there is a bug, but the issue type is improvement. There
is no bug, but default behavior. I'd change the title to: Add ability to print
mvn help:evaluate output to stdout in quiet mode.
> mvn help:evaluate -Dexpression=project.groupId -q does not print anything
> -------------------------------------------------------------------------
>
> Key: MPH-144
> URL: https://issues.apache.org/jira/browse/MPH-144
> Project: Maven Help Plugin
> Issue Type: New Feature
> Reporter: Karl Heinz Marbaise
> Assignee: Karl Heinz Marbaise
> Priority: Minor
>
> Currently if you use {{mvn help:evaluate -Dexpression=project.groupId}} there
> are printed out some lines like {{[INFO] ...]]}}. If you use {{mvn
> help:evaluate -Dexpression=project.groupId -q}} you won't get anything
> printed out at all.
> It would be a good idea to have an output via a supplemental parameter like
> this:
> {{mvn help:evaluate -Dexpression=project.groupId -DforceStdout=true -q}} to
> get printed out the information like this only:
> {code}
> 0.2.0-SNAPSHOT
> {code}
> this would give the opportunity to use the call within scripts directory
> without filtering out things lie {{[INFO]...}} etc. like this:
> {{RESULT=$(mvn help:evaluate -Dexpression=project.groupId -DforceStdout=true
> -q)}}
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