Re: [PATCH 2/3] rebase: accept -<number> as another way of saying HEAD~<number>

> Michael Haggerty <mhagger@alum.mit.edu> writes:
>
>> Or perhaps "-NUM" should fail with an error message if any of the last
>> NUM commits are merges.  In that restricted scenario (which probably
>> accounts for 99% of rebases), "-NUM" is equivalent to "HEAD~NUM".
>
> Makes sense to me. So, -NUM would actually mean "rebase the last NUM
> commits" (as well as being an alias for HEAD~NUM), but would fail when
> it does not make sense (with an error message explaining the situation
> and pointing the user to HEAD~N if this is what he wanted).

> This would actually be a feature for me: I often want to rebase "recent
> enough" history, and when my @{upstream} isn't well positionned, I
> randomly type HEAD~N without remembering what N should be. When N is too
> small, the rebase doesn't reach the interesting commit, and when N is
> too big, it reaches a merge commit and I get a bunch of commits I'm not
> allowed to edit in my todo-list. Then I have to abort the commit
> manually. With -N failing on merge commits, the rebase would abort
> itself automatically.