view mercurial/peer.py @ 18409:e3f5cef11d6a

hgweb: pass repo object to revnav construction

For compatibility with changelog filtering we need access to the changelog, a
simple nodefunc is not sufficient, only the changelog and repo have access the
filteredrevs information.

For the filerevnav version, we use an unfiltered changelog. Linkrev is currently
broken with filtering and we need some failsafe to prevent traceback. This is
the same approach as the one used in 518c1403838f. The use of
filectx.changectx() allowed the previous code to use the 518c1403838f hack.

This changeset may result in an incorrect behaviors, Navigation
link may point to missing revision. However this bad navigation
generation is much better than a plain crash

# peer.py - repository base classes for mercurial
#
# Copyright 2005, 2006 Matt Mackall <[e-mail]>
# Copyright 2006 Vadim Gelfer <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from i18n import _
import error

class peerrepository(object):

    def capable(self, name):
        '''tell whether repo supports named capability.
        return False if not supported.
        if boolean capability, return True.
        if string capability, return string.'''
        caps = self._capabilities()
        if name in caps:
            return True
        name_eq = name + '='
        for cap in caps:
            if cap.startswith(name_eq):
                return cap[len(name_eq):]
        return False

    def requirecap(self, name, purpose):
        '''raise an exception if the given capability is not present'''
        if not self.capable(name):
            raise error.CapabilityError(
                _('cannot %s; remote repository does not '
                  'support the %r capability') % (purpose, name))

    def local(self):
        '''return peer as a localrepo, or None'''
        return None

    def peer(self):
        return self

    def canpush(self):
        return True

    def close(self):
        pass