On Sun, Sep 8, 2013 at 3:01 AM, Philip Oakley <philipoak...@iee.org> wrote:
> From: "Felipe Contreras" <felipe.contre...@gmail.com>
> Sent: Sunday, September 08, 2013 3:34 AM
>> On Thu, Sep 5, 2013 at 3:06 AM, John Keeping <j...@keeping.me.uk> wrote:
>>> On Wed, Sep 04, 2013 at 03:59:18PM -0700, Junio C Hamano wrote:
>>>> Are there cases where you do not want to either rebase nor merge?
>>>> If so what do you want to do after "git pull" fetches from the other
>>>> side?  Nothing?
>>> One other thing that I can see being useful occasionally is:
>>>     git rebase @{u}@{1} --onto @{u}
>>> which allows local commits to be replayed onto a rewritten upstream
>>> branch.
>>> Although I agree with your side note below that people doing this may be
>>> better off fetching and then updating their local branch, particularly
>>> if @{1} is not the correct reflog entry for the upstream when they
>>> created the branch.
>> That's why after recognizing the fact the you can't find the branch
>> point of a branch in Git, I decided to write patches to support the
>> @{tail} shorthand, which is basically the point where the branch was
>> created, or rebased to:
>> https://github.com/felipec/git/commits/fc/base
>> And if 'git rebase' was fixed to ignore the commits already in the
>> rebased onto branch, almost always what you would want to do is 'git
>> rebase @{tail} --onto @{upstream}'.
> The use case that trips me up (i.e. doesn't fit the above) is when I have a
> branch that may need rebasing on (onto) pu, or may need rebasing on master,
> or next, depending on what others have been doing.

Yes, so you would do:

% git rebase --onto pu

Which would be translated to:

% git rebase @{tail} --onto pu

What's the problem?

> As a Distributed VCS (i.e. others doing work independently), a rebase always
> has the possibility that the world has moved on and one has to adapt to the
> new world order by moving location (--onto somewhere new), not just fixing
> up the house (patch conflicts). When the update order is unknown there is no
> guaranteed solution (IIUC).

Yeah, but almost always you want to rebase onto @{upstream}.

Felipe Contreras
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