Thanks for reply, and for providing both the Pipeline syntax formats. This 
is the first time I noticed that there are two distinct Pipeline syntaxes.

I'm trying out the Scripted Pipeline syntax now.  

I tried to find documentation on the difference between 'numToKeepStr' and 
'artifactNumToKeepStr' but couldn't. I set them both the same number in 
hopes that will have the desired effect of saving a particular number of 
builds. 

      Mark

On Wednesday, March 1, 2017 at 4:08:53 AM UTC-5, Baptiste Mathus wrote:
>
> I don't think there's something per branch, but you probably want to 
> either search JIRA and/or file a new feature request about it.
>
> You shouldn't need a special plugin, this is a standard feature. Here's 
> the way to do it with Declarative Pipeline: 
>
> pipeline {
>     options {
>         buildDiscarder(logRotator(numToKeepStr: '20'))
>     }
> ...
> }
>
> Or with scripted Pipeline: 
> https://github.com/jenkinsci/jenkins/blob/master/Jenkinsfile#L17-L19
>
> HTH
>
> 2017-02-28 20:24 GMT+01:00 Mark Stosberg <[email protected] 
> <javascript:>>:
>
>> For cleaning up old builds, the "Discard Old Builds" plugin is 
>> recommended:
>>
>> https://wiki.jenkins-ci.org/display/JENKINS/Discard+Old+Build+plugin
>>
>> However, the instructions for reference a "post build" step which doesn't 
>> exist in the Configure interface for Multibranch Pipeline projects. 
>>
>> What's the recommended way to clean-up builds from multi-branch pipeline 
>> projects? Ideally I'd like different pruning policies for different 
>> branches. 
>>
>> Thanks,
>>
>>      Mark
>>
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