ghosts in fast-import stream format

[Ian Clatworthy]

James Westby wrote:
> On Wed, 2008-03-12 at 00:22 +0000, James Westby wrote:
>> Generating the id would be a little problematic for us, as it
>> is part of the git format, but it is certainly possible. Should
>> we make it compulsory? Another solution would be for git to drop
>> the parent if it is a ghost with no id. This would break the
>> history representation and the round trip, but it would at least
>> allow you to get a working git repo.
> 
> Ah, stupid me. bzr cannot generate the id for the ghost, as we don't
> have the necessary information. That is why it's a ghost in the first
> place.
> 
> Perhaps we should just never generate the ghosts in the output.

That sounds fine to me initially. Longer term, we can reconsider
addressing it if and when it's really important to someone.

Ian C.