How to store last value of parameter in parameterized job as a default value for next build in Jenkins?

Question

I have been using Jenkins for a few weeks and I have one small problem. I can't find any plugin or solution for storing the last value of a parameter in a parametrized job as a default value for the next build.

For example: My parameter takes build version (1.0.0.01) in the first build. In the next build it will be changed to 1.0.0.02, but I want to have a 1.0.0.01 in the default value field as a hint. Does anybody have a solution or advice?

Answer 1

You can add a System groovy build step to your job (or maybe a post build Groovy step) using the Jenkins API to directly modify the project setting the default parameter value.

Here is some code that may be useful to get you started:

import hudson.model.*

paramsDef = build.getParent().getProperty(ParametersDefinitionProperty.class)
if (paramsDef) {
  paramsDef.parameterDefinitions.each{ param ->
    if (param.name == 'FOO') {
      println("Changing parameter ${param.name} default value was '${param.defaultValue}' to '${param.defaultValue} BAR'")
      param.defaultValue = "${param.defaultValue} BAR"
    }
  }
}

Have a look at the class ParameterDefinition in the Jenkins model.

You probably need to modify the default param value based on the current build executing. Some code to get that would look like this:

def thisBuildParamValue = build.buildVariableResolver.resolve('FOO')