How do I clear my Jenkins/Hudson build history?

Question

I recently updated the configuration of one of my hudson builds. The build history is out of sync. Is there a way to clear my build history?

Please and thank you

Answer 1

Use the script console (Manage Jenkins > Script Console) and something like this script to bulk delete a job's build history https://github.com/jenkinsci/jenkins-scripts/blob/master/scriptler/bulkDeleteBuilds.groovy

That script assumes you want to only delete a range of builds. To delete all builds for a given job, use this (tested):

// change this variable to match the name of the job whose builds you want to delete
def jobName = "Your Job Name"
def job = Jenkins.instance.getItem(jobName)

job.getBuilds().each { it.delete() }
// uncomment these lines to reset the build number to 1:
//job.nextBuildNumber = 1
//job.save()

Answer 2

Here is another option: delete the builds with cURL.

$ curl -X POST http://jenkins-host.tld:8080/jenkins/job/myJob/[1-56]/doDeleteAll

The above deletes build #1 to #56 for job myJob.

If authentication is enabled on the Jenkins instance, a user name and API token must be provided like this:

$ curl -u userName:apiToken -X POST http://jenkins-host.tld:8080/jenkins/job/myJob/[1-56]/doDeleteAll

The API token must be fetched from the /me/configure page in Jenkins. Just click on the "Show API Token..." button to display both the user name and the API token.

Edit: one might have to replace doDeleteAll by doDelete in the URLs above to make this work, depending on the configuration or the version of Jenkins used.