doLocalise

def doLocalise(localiseAll):
  rootNode = nuke.root()
  readKnobList = []
  nodeList = []
  if localiseAll:
    nodeList = nuke.allNodes(group=rootNode, recurseGroups=True)
  else:
    nodeList = nuke.selectedNodes()
    nodeList2 = []
    for node in nodeList:
      if node.Class() == 'Group':
        nodeList2 += nuke.allNodes(group=node, recurseGroups=True)
    nodeList += nodeList2
  for n in nodeList:
    readKnob = nuke.getReadFileKnob(n)
    if readKnob != None:
      if nuke.localisationEnabled(readKnob):
        readKnobList.append(readKnob)
  nuke.localiseFiles(readKnobList)