mercurial/repo.py

inotify: server: refactor updatestatus()

* Instead of one entry point, use two entry points, updatefile()
  and deletefile(), both internally calling the helper function _updatestatus
* Do not rely on TypeError to detect the type of oldstatus: use isinstance
* The call updatestatus(wpath, None) in deleted() was a bit particular:
  because no osstat and no newstatus was given, the newstatus was determined
  using the data stored internally. To replace this exact behavior with the
  new code, one would use:
    root, fn = self.split(wpath)
    d = self.dir(self.tree, root)
    self.filedeleted(wpath, d.get(fn))
  This, however, duplicates code with _updatestatus(), which led us to an
  interesting question: why are we basing ourselves on repowatcher data to
  update the status, where everywhere else, we are comparing against dirsate?
  There is no reason to do this, which is why the new code is:
    self.filedeleted(wpath, self.repo.dirstate[wpath])
  Incidentally, after this, the test for issue1371 passes again.

# repo.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, incorporated herein by reference.

from i18n import _
import error

class repository(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.'''
        if name in self.capabilities:
            return True
        name_eq = name + '='
        for cap in self.capabilities:
            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 False

    def cancopy(self):
        return self.local()

    def rjoin(self, path):
        url = self.url()
        if url.endswith('/'):
            return url + path
        return url + '/' + path