Re: refs/replace advice

[Johannes Sixt <j.sixt@viscovery.net>]

Am 7/29/2011 17:31, schrieb Pete Wyckoff:
> I'm trying to use "git replace" to avoid cloning the entire set
> of duplicate commits across a slow inter-site link.  Like this:
> 
>     ...---A----B----C   site1/top
>                      \
>                       D---E---F  site1/proj
> 
>     ...---A'---B'---C'  site2/top
> 
> It is true that "git diff C C'" is empty:  they are identical.
...
> I thought maybe I could "git fetch --depth=N" where N would cover
> the range A'..site2/top, then replace.  But testing with "git
> fetch --depth=3" still wants to fetch 100k objects.

On site2, don't you want to 'git fetch --depth=N site1' such that F down
to at least C (but not much more) is fetched, and then apply the graft or
replacement on site2?

-- Hannes