plugin to reweave history, inserting ghosts

[Martin Pool]

On 26/10/05, Jan Hudec <bulb at ucw.cz> wrote:
> On Wed, Oct 26, 2005 at 18:02:45 +1000, Martin Pool wrote:
> > One goal we want to support in bazaar-ng is "skeleton" or "ghost"
> > revisions (or some other ghoulish name).  This is where a revision
> > knows some other revision has been merged, but it doesn't know
> > anything else about it.  This is supported by tla and baz 1.x, but not
> > by many other systems.  (It's hard or impossible to do in a system
> > that identifies versions by hashes.)
>
> Is it? You just have a parent hash and don't have that hash in the
> store. That's a ghost revision. Not that any of mercurial, git or
> monotone could create it.

You may not *know* the hash or contents of the parent at the time you
create the child; this occurs all the time in arch.  You only know the
id.

> But there is one more version control system that _can_ have ghost
> revisions - svk. Similarly to arch it does propagate merge information
> to other repositories, but does not (and can not) propagate the
> changesets per se.

Yes, svk could do this as far as I know.  I didn't say no other
systems could do it.

--
Martin