Simple Jenkins Inline script to generate dot graph of plugin dependencies in a canonical oneliner.

jenkins_plugins_dependencies_canonical__dot.groovy

def plugins = jenkins.model.Jenkins.instance.getPluginManager().getPlugins()
print "digraph test {"
print "rankdir=LR;"
print "node [shape = box,height=.1,fontsize=48,fontname=Helvetica,fillcolor=yellow,style=filled];"
plugins.each {
    def plugin = it.getShortName()
    print "\"${plugin}\";"
    def deps =  it.getDependencies()
    deps.each {
      def s = it.shortName
      print "\"${plugin}\" -> \"${s}\";"
    }
} 
print "}"