invoke a downstream jenkins job with the current job parameters + additions

gistfile1.groovy

import hudson.model.*

// extract the version tag from the console log
def version_pattern = ".*\\[\\s*INFO\\s*\\]\\s+VERSION=(.*)\\s*\$"
def matcher = manager.getLogMatcher( version_pattern )
if ( matcher?.matches() ) {

	// add the version string to the job summary
	def ver = matcher.group(1)
	manager.addInfoBadge( "Version: $ver" )
	manager.createSummary("gear2.gif").appendText("<b>Version:</b> $ver", false )

	// prepare a list of parameters from the current build
	def params = []
	for ( p in manager.build.getActions().find{ it instanceof ParametersAction } ) {
		params.push( new StringParameterValue( p.name, p.value ) )
	}

	// add the version string
	params.push( new StringParameterValue( 'VERSION_STRING', ver ) )
	
	// schedule a build of the downstream job with current parameters
	def job = manager.hudson.getJob('test-verification-Hello-Discworld-linux-x86-release')
	job.scheduleBuild( 2, new Cause.UpstreamCause( manager.build ), new ParametersAction( params ) )

}