Index: Jenkinsfile
===================================================================
--- Jenkinsfile	(revision 40b1df985680825ed0515ef1b6a8a35a0165b189)
+++ Jenkinsfile	(revision 0c24808c29cea99bc4ae4794bfb9137e155828c6)
@@ -74,4 +74,14 @@
 	currentBuild.result = "SUCCESS"
 
+	old-value> SP <new-value> SP <ref-name>
+
+	properties
+		[[$class: 'ParametersDefinitionProperty', parameterDefinitions:
+			[[$class: 'StringParameterDefinition', name: 'git_ref_name',      defaultValue: 'master', description: 'name of the ref that changed' ],
+			 [$class: 'StringParameterDefinition', name: 'git_ref_new_value', defaultValue: 'HEAD',   description: 'new commit of the reference' ],
+			 [$class: 'StringParameterDefinition', name: 'git_ref_old_value', defaultValue: 'HEAD~1', description: 'old commit of the reference']]
+		]]
+
+
 	try {
 		//Prevent the build from exceeding 30 minutes