Use node.js and ANSIcolor plugin in Jenkins

Question

I want to display colored output in jenkins which is produced by node.js

Both work separately, but not combined:

Node Script My test script test.js:

console.log(require("chalk").red("Node Red"))

Calling the test script in the shell works:

node test.js => OK

Calling a colored shell script in jenkins works:

echo -e "\033[31mShell Red\033[0m" => OK

But calling the node script in jenkins does not display any colors:

node test.js => No Color, when executed in jenkins

score 3 · Answer 1 · answered Aug 27 '19 at 17:55

3

For me it worked when putting

export FORCE_COLOR=1

at the top of my script.

See https://github.com/chalk/supports-color#info

answered Aug 27 '19 at 17:55

Raphael Schweikert

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score 3 · Answer 2 · answered Apr 08 '20 at 07:19

The answer of Raphael pointed me in the right direction. Here my complete solution for a Jenkins Pipeline Script (Scripted Pipeline): :

node {
    ansiColor('xterm') {
        withEnv(['FORCE_COLOR=3']) {
            ...
            sh "some-node-script-using-chalk.js"
            ...
        }
    }
}

If you are using the Declarative Pipeline see https://jenkins.io/doc/pipeline/tour/environment/ how to set environment variables in a Declarative Pipeline Script.

score 1 · Answer 3 · answered Mar 02 '19 at 16:35

1

I just found the problem in my case :

In The Job Configuration
Look at the Bindings
Check the checkbox named "Color ANSI Console Output"

And it works (for me...)

answered Mar 02 '19 at 16:35

BENARD Patrick

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Use node.js and ANSIcolor plugin in Jenkins

3 Answers3