Re: Is rebase --force-rebase any different from rebase --no-ff?

> On 2018-05-09 03:46 PM, Ilya Kantor wrote:
>>
>> I tried to compare --force-rebase VS --no-ff for the following repository:
>> http://jmp.sh/E7TRjcL
>>
>> There's no difference in the resulf of:
>> git rebase --force-rebase 54a4
>> git rebase --no-ff 54a4
>>
>> (rebases all 3 commits of feature)
>>
>> Also, there's no difference in interactive mode:
>> git rebase --force-rebase -i 54a4
>> git rebase --no-ff -i 54a4
>>
>> (picks all 3 commits of feature)
>>
>> Is there a case where --no-ff differs from --force-rebase?
>
>
> So now that "rebase -i" respects --force-rebase, the question is what to do
> about it:
>
> 1. Teach "rebase -i" to stop respecting --force-rebase (restoring the
> original intent when --no-ff was introduced)?
>
> 2. Deprecate --no-ff?
>
> 3. Deprecate --force-rebase?
>
> As a heavy rebase user, I find --no-ff more intuitive than --force-rebase.
> I'd be in favour of option 3, and keeping just --no-ff (with -f as a
> synonym).
>
>                 M.
>
>
>> ---
>> Best Regards,
>> Ilya Kantor
>>
>>
>> On Wed, May 9, 2018 at 10:27 PM, Marc Branchaud <marcnarc@xiplink.com>
>> wrote:
>>>
>>> On 2018-05-09 02:21 PM, Stefan Beller wrote:
>>>>
>>>>
>>>> +cc Marc and Johannes who know more about rebase.
>>>>
>>>> On Wed, May 9, 2018 at 9:01 AM, Ilya Kantor <iliakan@gmail.com> wrote:
>>>>>
>>>>>
>>>>> Right now in "git help rebase" for --no-ff:
>>>>> "Without --interactive, this is a synonym for --force-rebase."
>>>>>
>>>>> But *with* --interactive, is there any difference?
>>>>
>>>>
>>>>
>>>> I found
>>>>
>>>>
>>>> https://code.googlesource.com/git/+/b499549401cb2b1f6c30d09681380fd519938eb0
>>>> from 2010-03-24
>>>
>>>
>>>
>>> In the original discussion around this option [1], at one point I
>>> proposed
>>> teaching rebase--interactive to respect --force-rebase instead of adding
>>> a
>>> new option [2].  Ultimately --no-ff was chosen as the better user
>>> interface
>>> design [3], because an interactive rebase can't be "forced" to run.
>>>
>>> At the time, I think rebase--interactive only recognized --no-ff.  That
>>> might have been muddled a bit in the migration to rebase--helper.c.
>>>
>>> Looking at it now, I don't have a strong opinion about keeping both
>>> options
>>> or deprecating one of them.
>>>
>>>                  M.
>>>
>>> [1] https://public-inbox.org/git/4B9FD9C1.9060200@xiplink.com/t/
>>> [2]
>>>
>>> https://public-inbox.org/git/1269361187-31291-1-git-send-email-marcnarc@xiplink.com/
>>> [3] https://public-inbox.org/git/7vzl1yd5j4.fsf@alter.siamese.dyndns.org/
>>>
>>>
>>>>       Teach rebase the --no-ff option.
>>>>
>>>>       For git-rebase.sh, --no-ff is a synonym for --force-rebase.
>>>>
>>>>       For git-rebase--interactive.sh, --no-ff cherry-picks all the
>>>> commits
>>>> in
>>>>       the rebased branch, instead of fast-forwarding over any unchanged
>>>> commits.
>>>>
>>>>       --no-ff offers an alternative way to deal with reverted merges.
>>>> Instead of
>>>>       "reverting the revert" you can use "rebase --no-ff" to recreate
>>>> the
>>>> branch
>>>>       with entirely new commits (they're new because at the very least
>>>> the
>>>>       committer time is different).  This obviates the need to revert
>>>> the
>>>>       reversion, as you can re-merge the new topic branch directly.
>>>> Added
>>>> an
>>>>       addendum to revert-a-faulty-merge.txt describing the situation and
>>>> how to
>>>>       use --no-ff to handle it.
>>>>
>>>> which sounds as if there is?
>>>>
>>>> Stefan
>>>>
>>>
>