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https://issues.apache.org/jira/browse/MNG-6282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16164182#comment-16164182
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Hervé Boutemy commented on MNG-6282:
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I just had a look at JAnsi code: {{mvn -Djansi.passthrough=true}} should
activate color
(or {{java -Djansi.passthrough=true -ja jansi-*.jar}} with the test: notice
that color is here, even if characters are completely screwed, because of
encoding issues, but this is not important here)
explanation: currently, when MinTTY (aka GitBash, MINGW) or Cygwin are
detected, ANSI escape code are simply stripped from System.out.
I don't understand why it was coded like this, since these shell natively
support ANSI escape code (without Windows native code trickery that is
activated with cmd.exe or PowerShell)
Then {{jansi.passthrough=true}} just drop the whole detection and stripping: it
just let System.out as-is, with its ANSI escape code that GitBash and Cygwin
bash can interpret natively
I'll add this explanation in GitHub issue tracker tonight, since all this
belongs to JAnsi...
> Console output has no colors in shell (both Git Bash and Cygwin) [regression
> in Jansi 1.16 / Maven 3.5.1]
> ---------------------------------------------------------------------------------------------------------
>
> Key: MNG-6282
> URL: https://issues.apache.org/jira/browse/MNG-6282
> Project: Maven
> Issue Type: Bug
> Components: Logging
> Affects Versions: 3.5.1
> Reporter: Dejan Stojadinović
> Labels: regression, windows
> Attachments: screenshot-1.png, screenshot-2.png, screenshot-3.png,
> screenshot-4.png, screenshot-5-Cygwin.png
>
>
> See
> [screenshot|https://issues.apache.org/jira/secure/attachment/12886398/screenshot-1.png]
> for more details.
> _*Environment:*_
> * Windows 10, 64 bit
> * Oracle Java, version: *1.8.0_144*
> * Git Bash shell (MINGW64), Cygwin
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