On Thu, Apr 11, 2013 at 12:05 AM, Jeff King <p...@peff.net> wrote:
> On Wed, Apr 10, 2013 at 11:53:38PM -0500, Felipe Contreras wrote:
>> > But if we push some commits to the helper, moving Y up to Z, then it
>> > would build the new commit (which contains the foreign-vcs's equivalent of
>> > Y..Z) on top of Z, not Y.
>> Why would it do that? If X points to say revision 100, presumably it
>> was stored somewhere while doing a fetch. Similarly, if foreign
>> version of Z is 150, it can update that number while doing a push. The
>> next fetch it would start from 151.
> I think the only reason not to bump the marker forward during the push
> would be if the helper wants for some reason to "re-import" from the
> foreign source rather than accepting the git versions of the commits.
> Something like git-svn's markup of the commit messages with revision ids
> comes to mind.

Yeah, but that's already a second level hypothesis. First,
remote-helpers would need to be able to work without marks, and they

> But if it matters, then by definition that would mean
> that the import/export is not bidirectionally clean.

I don't see how would that matter.

> So I can buy the argument that bumping it forward ourselves will not
> matter for any well-implemented helper.

Or any helper.

> That is the sort of thing that might be helpful to include in the commit
> message; if somebody does run across such a helper and bisects to your
> commit, then they can understand the rationale for the decision.

If it did matter, it would be mentioned. I will updated it later if
there's no further comments.

Felipe Contreras
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