How do I get the output of a shell command executed using into a variable from Jenkinsfile (groovy)?

groovy jenkins-pipeline
sorin picture sorin · Apr 11, 2016 · Viewed 342.3k times · Source

I have something like this on a Jenkinsfile (Groovy) and I want to record the stdout and the exit code in a variable in order to use the information later. 

sh "ls -l"

How can I do this, especially as it seems that you cannot really run any kind of groovy code inside the Jenkinsfile?

Answer

G. Roggemans picture G. Roggemans · Aug 5, 2016

The latest version of the pipeline sh step allows you to do the following;

// Git committer email
GIT_COMMIT_EMAIL = sh (
    script: 'git --no-pager show -s --format=\'%ae\'',
    returnStdout: true
).trim()
echo "Git committer email: ${GIT_COMMIT_EMAIL}"

Another feature is the returnStatus option.

// Test commit message for flags
BUILD_FULL = sh (
    script: "git log -1 --pretty=%B | grep '\\[jenkins-full]'",
    returnStatus: true
) == 0
echo "Build full flag: ${BUILD_FULL}"

These options where added based on this issue.

See official documentation for the sh command.

Related questions

How can I trigger another job from a jenkins pipeline (jenkinsfile) with GitHub Org Plugin?

How can I trigger build of another job from inside the Jenkinsfile? I assume that this job is another repository under the same github organization, one that already has its own Jenkins file. I also want to do this only …

Read More
Jenkins: Cannot define variable in pipeline stage

I'm trying to create a declarative Jenkins pipeline script but having issues with simple variable declaration. Here is my script: pipeline { agent none stages { stage("first") { def foo = "foo" // fails with "WorkflowScript: 5: Expected a step @ line 5, column 13." sh "echo ${foo}" } } } …

Read More
How to access parameters in a Parameterized Build?

How do you access parameters set in the "This build is parameterized" section of a "Workflow" Jenkins job? TEST CASE Create a WORKFLOW job. Enable "This build is parameterized". Add a STRING PARAMETER foo with default value bar text. Add …

Read More