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https://issues.apache.org/jira/browse/MPH-99?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15580534#comment-15580534
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Guillaume Boué commented on MPH-99:
-----------------------------------
Fixed in
[r1765191|http://svn.apache.org/viewvc?view=revision&revision=1765191]. About
resolution: {{quiet}} mode will still result in no output; instead, a new
{{output}} parameter was added that allows to write the result of evaluating a
given expression to a file. And if no expression is given, the parameter is
ignored.
Sample usage: {{mvn help:evaluate -Dexpression="project.groupId"
-Doutput=result.txt}}. The file {{result.txt}} would contain the groupId
evaluated.
> Evaluate has no output in quiet mode
> ------------------------------------
>
> Key: MPH-99
> URL: https://issues.apache.org/jira/browse/MPH-99
> Project: Maven Help Plugin
> Issue Type: Bug
> Components: evaluate
> Affects Versions: 2.2
> Reporter: Alexandre Garnier
> Attachments: output_on_quiet.patch
>
>
> When using {{help:evaluate}} in normal mode, the evaluation result is lost in
> a lot of Maven {{[INFO\]}} :
> {code:language=bash}
> $ mvn help:evaluate -Dexpression=project.version
> [INFO] Scanning for projects...
> [INFO]
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building myProject 1.0.0
> [INFO]
> ------------------------------------------------------------------------
> [INFO]
> [INFO] --- maven-help-plugin:2.2:evaluate (default-cli) @ myProject ---
> [INFO] No artifact parameter specified, using 'com.test:myProject:pom:1.0.0'
> as project.
> [INFO]
> 1.0.0
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 1.216s
> [INFO] Finished at: Fri Feb 07 10:32:22 CET 2014
> [INFO] Final Memory: 21M/224M
> [INFO]
> ------------------------------------------------------------------------
> $
> {code}
> I was hoping that launching Maven in quiet mode would avoid all the logs and
> only display the evaluation result, but there is just no output at all.
> {code:language=bash}
> $ mvn --quiet help:evaluate -Dexpression=project.version
> $
> {code}
> In attachment, a patch to use sysout instead of logging for evaluation output.
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