merge.py

   1 import os
   2 from xml.dom import minidom, XMLNS_NAMESPACE
   3 from zeroinstall.injector.namespaces import XMLNS_IFACE
   4 from zeroinstall.injector import model, reader
   5
   6 def merge(data, local):
   7         local_doc = minidom.parse(local)
   8         master_doc = minidom.parseString(data)
   9
  10         for impl in local_doc.getElementsByTagNameNS(XMLNS_IFACE, 'implementation'):
  11                 new_impl = master_doc.importNode(impl, True)
  12                 while impl.parentNode is not local_doc:
  13                         impl = impl.parentNode
  14                         for attr in ['stability', 'released', 'main', 'arch', 'version']:
  15                                 if impl.hasAttribute(attr) and not new_impl.hasAttribute(attr):
  16                                         new_impl.setAttribute(attr, impl.getAttribute(attr))
  17
  18                 master_doc.documentElement.appendChild(master_doc.createTextNode('  '))
  19                 master_doc.documentElement.appendChild(new_impl)
  20                 master_doc.documentElement.appendChild(master_doc.createTextNode('\n'))
  21                 print "Impl", new_impl
  22
  23         # minidom's writer loses the newline after the PI
  24         return master_doc.toxml()