comparison mercurial/ui.py @ 33150:77e666f943a6

configitems: support callable as a default value

Yuya pointed out that using mutable value as the default could be problematic.
To work around this we now support callable object as default value. This
allows for creating new mutable objects on demand when needed.

33149:a14e2e7f7d1f

        else:
            item = self._knownconfig.get(section, {}).get(name)
            if default is _unset:
                if item is None:
                    value = default
                else:
                    value = item.default
            elif item is not None:
                msg = ("specifying a default value for a registered "
                       "config item: '%s.%s' '%s'")

33150:77e666f943a6

        else:
            item = self._knownconfig.get(section, {}).get(name)
            if default is _unset:
                if item is None:
                    value = default
                elif callable(item.default):
                    value = item.default()
                else:
                    value = item.default
            elif item is not None:
                msg = ("specifying a default value for a registered "
                       "config item: '%s.%s' '%s'")