Re: When exactly should REBASE_HEAD exist?

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On 05.03.23 15:33, Phillip Wood wrote:
> Hi Stefan
> 
> On 03/03/2023 10:57, Stefan Haller wrote:
>> On 02.03.23 21:27, Stefan Haller wrote:
>>> On 02.03.23 11:19, Phillip Wood wrote:
>>>> On 28/02/2023 12:55, Stefan Haller wrote:
>>>>> The reason why I am asking this is: I'm using lazygit, which, during
>>>>> interactive rebases, shows a combined view of the real commits that
>>>>> were
>>>>> already applied, and the remaining commits that are yet to be applied
>>>>> (it gets these by parsing rebase-merge/git-rebase-todo); something
>>>>> like
>>>>> this, when I set the 2nd commit to "edit":
>>>>>
>>>>>     pick   4th commit
>>>>>     pick   3rd commit
>>>>>            2nd commit  <-- YOU ARE HERE
>>>>>            1st commit
>>>>>
>>>>> This is great, but assuming that the 2nd commit conflicted, currently
>>>>> the display looks like this:
>>>>>
>>>>>     pick   4th commit
>>>>>     pick   3rd commit
>>>>>            1st commit  <-- YOU ARE HERE
>>>>>
>>>>> I would like to extend this to also show a "fake entry" for the commit
>>>>> that conflicted, if there is one. REBASE_HEAD is perfect for this,
>>>>> except that I need a way to distinguish whether it was applied already
>>>>> or not.
>>>>
>>>> Can you check the index for conflicts when the rebase stops?
>>>
>>> I could do that, but then the fake entry would go away as soon as I have
>>> staged all conflict resolutions. I would find it useful for it to stay
>>> visible in that case, until I continue the rebase.
>>
>> It seems that I can get close by checking whether the file
>> .git/rebase-merge/amend exists. If it does, the current patch was
>> applied already, and I don't show the fake entry. If it doesn't, we
>> still need to commit the changes from REBASE-HEAD, so it makes sense to
>> show it in the list.
> 
> When a fixup or squash stops for a confict resolution that file also
> exists as the result needs to be squashed into HEAD.

Ah damn, yes. And that's even a pretty common situation, so I can't just
ignore it as a rare edge case.

-Stefan



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