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Re: [PATCH] rebase -i: introduce the 'test' command




On Mon, Dec 03, 2018 at 08:01:44PM +0100, Johannes Schindelin wrote:

> > In this sort of situation, I often whish to be able to do nested rebases.
> > Even more because it happen relatively often that I forget that I'm
> > working in a rebase and not on the head, and then it's quite natural
> > to me to type things like 'git rebase -i @^^^' while already rebasing.
> > But I suppose this has already been discussed.
> 
> Varieties of this have been discussed, but no, not nested rebases.
> 
> The closest we thought about was re-scheduling the latest <n> commits,
> which is now harder because of the `--rebase-merges` mode.
> 
> But I think it would be doable. Your idea of a "nested" rebase actually
> opens that door quite nicely. It would not *really* be a nested rebase,
> and it would still only be possible in interactive mode, but I could
> totally see
> 
> 	git rebase --nested -i HEAD~3
> 
> to generate and prepend the following lines to the `git-rebase-todo` file:
> 
> 	reset abcdef01 # This is HEAD~3
> 	pick abcdef02 # This is HEAD~2
> 	pick abcdef03 # This is HEAD~
> 	pick abcdef04 # This is HEAD
> 
> (assuming that the latest 3 commits were non-merge commits; It would look
> quite a bit more complicated in other situations.)

Yeah, I would probably use that if it existed.

It would be nicer to have real nested sequencer operations, I think, for
other situations. E.g., cherry-picking a sequence of commits while
you're in the middle of a rebase.

But I suspect getting that right would be _loads_ more work, and
probably would involve some funky UI corner cases to handle the stack of
operations (so truly aborting a rebase may mean an arbitrary number of
"rebase --abort" calls to pop the stack). Your suggestion is probably a
reasonable trick in the meantime.

-Peff