Assigning return value from Powershell script to a Groovy variable

Question

I have a Groovy script that runs a separate Powershell script as part of a Jenkins pipeline. The Powershell script returns a value (int) and I intend to use that value in the Groovy script by assigning it to a variable but the groovy variable is always evaluated to null. Code below, edited for brevity.

Powershell Script

#Some actions...
$foo = 0
return $foo

Returns (when run manually in Powershell):

Groovy Script

stage('StageX'){
    //Some actions...
    def return_val = powershell "Path\\to\\script\\someScript.ps1"
    echo return_val
    if (return_val == 0){
        //Do things...
    }
}

Returns:

null

I know that the script actually runs as it performs other actions that are apparent when the Groovy script runs, I just can't seem to get Groovy to pick up the return value of the Powershell script.

What is the best way to do this?

smelm · Accepted Answer · 2020-10-21 11:40:14Z

7

You need to pass it the returnStatus parameter:

    def return_val = powershell script: "Path\\to\\script\\someScript.ps1", returnStatus: true

See the documentation for more information https://www.jenkins.io/blog/2017/07/26/powershell-pipeline/

answered Oct 21, 2020 at 11:40

smelm

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Comments

iAlucard · Accepted Answer · 2020-10-21 11:57:30Z

0

Im kinda to new to powershell but what can be expected from a 0. Zero value. Nothing.

if (return_val == Null){
        //Do things...
    }

Have you tested this? Do you get another values back beside 0?

answered Oct 21, 2020 at 11:57

iAlucard

316 bronze badges

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