[MNG-6242] No color for maven on Cygwin

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Fix Version/s: 3.5.2
• Component/s: Command Line
• Environment: Cygwin. For example, my uname currently says:; ; CYGWIN_NT-10.0 Beren 2.8.0(0.309/5/3) 2017-04-01 20:47 x86_64 Cygwin
• Assignee: Herve Boutemy
• Reporter: Brian Oxley
• Created: 23/Jun/17 10:21
• Updated: 28/Mar/20 15:01
• Resolved: 15/Oct/17 08:55

Description

Full description and workaround here: https://binkley.blogspot.com/2017/04/maven-color-logging-on-cygwin.html

In short: the JANSI library used in Maven 3.5.0 does not detect Cygwin, and falls back to no color. There is a workaround (Zart Colwing): Add -Djansi.passthrough=true to MAVEN_OPTS.

As the mvn script understands Cygwin, it would be helpful to add the passthrough flag automatically. (Of course, there may need to be some smarts about batch and logging modes, and checking if stdout is a console vs pipeline.)

Apologies: I'm unsure how to issue a PR for the maven repo.

Issue Links

• is related to: MNG-6282 Console output has no colors in shell (both Git Bash and Cygwin) [regression in Jansi 1.16 / Maven 3.5.1]