def get_publish_properties(target):
   publish_properties = props_by_repo.get(target.provides.repo)
   if not publish_properties:
     publish_properties = Properties()
     with open(target.provides.repo.push_db) as props:
       publish_properties.load(props)
     props_by_repo[target.provides.repo] = publish_properties
   return publish_properties

  def test_dump(self):
    props = OrderedDict()
    props['a'] = 1
    props['b'] = '''2
'''
    props['c'] =' 3 : ='
    out = Compatibility.StringIO()
    Properties.dump(props, out)
    self.assertEquals('a=1\nb=2\\\n\nc=\\ 3\\ \\:\\ \\=\n', out.getvalue())

  def _find_checkstyle_suppressions(props, root_dir):
    props = Properties.load(props)

    # Magic - we know the root.dir property is defined elsewhere, so we seed it.
    props['root.dir'] = root_dir

    def resolve_props(value):
      def replace_symbols(matchobj):
        return props[matchobj.group(1)]

      symbol_parser = re.compile("\${([^}]+)\}")
      while symbol_parser.match(value):
        value = symbol_parser.sub(replace_symbols, value)
      return value

    files = resolve_props(props['checkstyle.suppression.files'])
    return files.split(',')

 def dump(self, path):
   """Saves the pushdb as a properties file to the given path."""
   with open(path, 'w') as props:
     Properties.dump(self._props, props)

 def load(path):
   """Loads a pushdb maintained in a properties file at the given path."""
   with open(path, 'r') as props:
     properties = Properties.load(props)
     return PushDb(properties)

 def get_publish_properties(target):
   if target.provides.repo not in props_by_repo:
     with open(target.provides.repo.push_db) as props:
       props_by_repo[target.provides.repo] = Properties.load(props)
   return props_by_repo.get(target.provides.repo)

 def assertLoaded(self, contents, expected):
   self.assertEquals(expected, Properties.load(contents))