Set defaults.

def set_defaults(self, config_file):
        """Set defaults.
        """
        self.defaults = Defaults(config_file)
        self.locations = Locations(self.defaults)
        self.python = Python()
        self.setuptools = Setuptools()
        self.scp = SCP()
        self.scms = SCMFactory()
        self.urlparser = URLParser()
        self.skipcommit = not self.defaults.commit
        self.skiptag = not self.defaults.tag
        self.skipregister = False   # per server
        self.skipupload = False     # special
        self.push = self.defaults.push
        self.develop = False        # special
        self.quiet = self.defaults.quiet
        self.sign = False           # per server
        self.list = False
        self.manifest = self.defaults.manifest
        self.identity = ''          # per server
        self.branch = ''
        self.scmtype = ''
        self.infoflags = []
        self.formats = []
        self.distributions = []
        self.directory = os.curdir
        self.scm = None