Re: git-reset and clones

[Petr Baudis <pasky@suse.cz>]

Dear diary, on Fri, Mar 17, 2006 at 03:10:23AM CET, I got a letter
where Junio C Hamano <junkio@cox.net> said that...
> You used to have something like this:
> 
> 
>                  o---o---o---A
>                 /            ^ your HEAD used to point at here
>     ---o---o---o
> 
> and you forgot other people already have the commit chain up to
> commit A.   But you rewound and did cleanups:
> 
>                  o---o---o---A
>                 /
>     ---o---o---o---o---o---B
>                            ^ your HEAD now points at here
> 
> People who track your HEAD have A and your updated head B does
> not fast forward.  Oops.

Just for the sake of completeness, this is a GIT-only doctrine; Cogito
is more confiding and has less strict requirements.

First, when fetching, it does not care at all whether the new head is a
fast-forward of the original one or not.

Second, when the people who are tracking you had A as their current
master head _and_ also the origin remote head (or whichever their
respective branch names are), their current master head will be updated
to B when cg-updating, as Cogito pretends it to be a fast-forward even
though it is not.

So, in the simple tracking cases, Cogito will do the right thing, if you
use cg-update.

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
Right now I am having amnesia and deja-vu at the same time.  I think
I have forgotten this before.