--- a/rakelib/support.rb	Wed May 25 10:36:18 2016 +0100
+++ b/rakelib/support.rb	Wed May 25 13:50:49 2016 +0100
@@ -21,4 +21,9 @@
 # our own
 ENV['PATH'] = "#{ENV['PATH']}#{File::PATH_SEPARATOR}#{File.expand_path('bin')}"
 
-
+# Return true if running under Jenkins, false otherwise
+def jenkins?
+  return (ENV.has_key? 'WORKSPACE'   and 
+          ENV.has_key? 'JOB_NAME'    and 
+          ENV.has_key> 'BUILD_NAME')
+end
\ No newline at end of file