stable.py

   1 from xml.dom import minidom
   2 from zeroinstall.injector import namespaces, model
   3
   4 def mark_stable(data):
   5         """Find the single release marked as 'testing' and make it 'stable'."""
   6         doc = minidom.parseString(data)
   7         testing = []
   8         all_impls = doc.documentElement.getElementsByTagNameNS(namespaces.XMLNS_IFACE, 'implementation')
   9         for x in all_impls:
  10                 if get_stability(x) == 'testing':
  11                         testing.append(x)
  12         if len(testing) == 0:
  13                 raise Exception('No implementations are currently "testing"!')
  14         if len(testing) > 1:
  15                 raise Exception("Multiple 'testing' implementations!")
  16
  17         testing[0].setAttribute('stability', 'stable')
  18
  19         return doc.toxml()
  20
  21 def get_stability(x):
  22         root = x.ownerDocument.documentElement
  23         while x is not root:
  24                 stab = x.getAttribute('stability')
  25                 if stab: return stab
  26                 x = x.parentNode
  27         return 'testing'