268         return bool(self.reachableroots(a, [b], [a], includepath=False))

   268         return bool(self.reachableroots(a, [b], [a], includepath=False))

   269 

   269 

   270     def parentrevs(self, rev):

   270     def parentrevs(self, rev):

   271         n = self.node(rev)

   271         n = self.node(rev)

   272         hn = gitutil.togitnode(n)

   272         hn = gitutil.togitnode(n)

   274         p1 = p2 = nodemod.nullrev

   277         p1 = p2 = nodemod.nullrev

   275         if c.parents:

   278         if c.parents:

   276             p1 = self.rev(c.parents[0].id.raw)

   279             p1 = self.rev(c.parents[0].id.raw)

   277             if len(c.parents) > 2:

   280             if len(c.parents) > 2:

   278                 raise error.Abort(b'TODO octopus merge handling')

   281                 raise error.Abort(b'TODO octopus merge handling')