release.py

   1 from xml.dom import minidom, Node
   2 from zeroinstall.injector import namespaces, model
   3 import time, re
   4
   5 date_format = '\d{4}-\d{2}-\d{2}'
   6
   7 def add_version(data, version):
   8         """Create a new <implementation> after the last one in the file."""
   9         doc = minidom.parseString(data)
  10         all_impls = doc.documentElement.getElementsByTagNameNS(namespaces.XMLNS_IFACE, 'implementation')
  11         if not all_impls:
  12                 raise Exception('No existing <implementation> elements found!')
  13         new_impl = doc.createElementNS(namespaces.XMLNS_IFACE, 'implementation')
  14         new_impl.setAttribute('version', version)
  15         new_impl.setAttribute('id', '.')
  16
  17         last_impl = all_impls[-1]
  18         previous = last_impl.previousSibling
  19         next = last_impl.nextSibling
  20         parent = last_impl.parentNode
  21         if previous and previous.nodeType == Node.TEXT_NODE:
  22                 parent.insertBefore(doc.createTextNode(previous.nodeValue), next)
  23         parent.insertBefore(new_impl, next)
  24         return doc.toxml()
  25
  26 def make_release(data, id, version, released, stability, main, arch):
  27         """Normally there's only one implementation, but we can cope with several."""
  28         if released == 'today': released = time.strftime('%Y-%m-%d')
  29         if released and released != 'Snapshot' and not re.match(date_format, released):
  30                 raise Exception('Invalid date format. Use YYYY-MM-DD.')
  31
  32         doc = minidom.parseString(data)
  33         unreleased = None
  34         all_impls = doc.documentElement.getElementsByTagNameNS(namespaces.XMLNS_IFACE, 'implementation')
  35         for x in all_impls:
  36                 _released = x.getAttribute('released')
  37                 if released is None or not re.match(date_format, _released):
  38                         if unreleased:
  39                                 raise Exception('Multiple unreleased implementations!')
  40                         unreleased = x
  41         if unreleased is None:
  42                 if len(all_impls) == 0:
  43                         raise Exception('No implementations in interface file!')
  44                 if len(all_impls) > 1:
  45                         raise Exception("Multiple implementations, but all are released. Aborting.")
  46                 unreleased = all_impls[0]
  47
  48         # In future, we may want to bulk change implementations...
  49         for x in [unreleased]:
  50                 if id is not None: x.setAttribute('id', id)
  51                 if version is not None: x.setAttribute('version', version)
  52                 if released is not None: x.setAttribute('released', released)
  53                 if stability is not None: x.setAttribute('stability', stability)
  54                 if main is not None: x.setAttribute('main', main)
  55                 if arch is not None: x.setAttribute('arch', arch)
  56
  57         return doc.toxml()