From: Michael Haggerty <mhagger@alum.mit.edu>
To: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Cc: "Eric Sunshine" <sunshine@sunshineco.com>,
"Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
"Git List" <git@vger.kernel.org>, "Jeff King" <peff@peff.net>,
"Philip Oakley" <philipoakley@iee.org>
Subject: Re: [PATCH 2/3] rebase: accept -<number> as another way of saying HEAD~<number>
Date: Mon, 03 Mar 2014 10:16:49 +0100 [thread overview]
Message-ID: <53144881.6090702@alum.mit.edu> (raw)
In-Reply-To: <vpqlhwsr3ww.fsf@anie.imag.fr>
On 03/02/2014 04:55 PM, Matthieu Moy wrote:
> Eric Sunshine <sunshine@sunshineco.com> writes:
>
>> On Sun, Mar 2, 2014 at 3:53 AM, Eric Sunshine <sunshine@sunshineco.com> wrote:
>>> On Sat, Mar 1, 2014 at 9:53 PM, Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
>>>> This is "rev-list style", where people can do "git rev-list -3" in
>>>> addition to "git rev-list HEAD~3". A lot of commands are driven by the
>>>> revision machinery and also accept this form. This addition to rebase
>>>> is just for convenience.
>>>
>>> I'm seeing some pretty strange results with this. If I use -1, -2, or
>>> -3 then it rebases the expected commits, however, -4 gives me 9
>>> commits, and -5 rebases 35 commits. Am I misunderstanding how this
>>> works?
>>
>> Nevermind. I wasn't paying attention to the fact that I was attempting
>> to rebase merges.
>
> Your remark is actually interesting. Most (all?) Git commands taking
> -<n> as parameters act on n commits, regardless of merges.
>
> So, this commit creates an inconsistency between e.g. "git log -3" (show
> last 3 commits) and "git rebase -3" (rebase up to HEAD~3, but there may
> be more commits in case there are merges).
>
> I don't have a better proposal, but at least the inconsistancy should be
> documented (e.g. "note that this is different from what other commands
> like 'git log' do when used with a -<number> option since ..." in the
> manpage).
This might be a reason that "-NUM" is a bad idea.
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".
Michael
--
Michael Haggerty
mhagger@alum.mit.edu
http://softwareswirl.blogspot.com/
next prev parent reply other threads:[~2014-03-03 9:17 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-27 13:01 [PATCH/RFC] rebase: new convenient option to edit a single commit Nguyễn Thái Ngọc Duy
2014-02-27 13:52 ` Matthieu Moy
2014-02-28 6:58 ` Jeff King
2014-02-28 7:34 ` Duy Nguyen
2014-02-28 7:38 ` Jeff King
2014-02-28 17:14 ` Philip Oakley
2014-03-02 2:53 ` [PATCH 0/3] rebase's convenient options Nguyễn Thái Ngọc Duy
2014-03-02 2:53 ` [PATCH 1/3] rev-parse: support OPT_NUMBER_CALLBACK in --parseopt Nguyễn Thái Ngọc Duy
2014-03-04 18:28 ` Junio C Hamano
2014-03-02 2:53 ` [PATCH 2/3] rebase: accept -<number> as another way of saying HEAD~<number> Nguyễn Thái Ngọc Duy
2014-03-02 8:37 ` Eric Sunshine
2014-03-02 8:45 ` Duy Nguyen
2014-03-02 8:53 ` Eric Sunshine
2014-03-02 8:55 ` Eric Sunshine
2014-03-02 15:55 ` Matthieu Moy
2014-03-03 9:16 ` Michael Haggerty [this message]
2014-03-03 9:37 ` Matthieu Moy
2014-03-03 10:04 ` Duy Nguyen
2014-03-03 10:11 ` David Kastrup
2014-03-03 10:12 ` Matthieu Moy
2014-03-03 10:13 ` Jeff King
2014-03-03 21:48 ` Junio C Hamano
2014-03-03 22:39 ` Matthieu Moy
2014-03-03 21:44 ` Junio C Hamano
2014-03-02 2:53 ` [PATCH 3/3] rebase: new convenient option to edit a single commit Nguyễn Thái Ngọc Duy
2014-03-02 9:04 ` Eric Sunshine
2014-03-02 9:09 ` Eric Sunshine
2014-03-03 10:10 ` Michael Haggerty
2014-03-03 10:15 ` Duy Nguyen
2014-03-03 10:37 ` David Kastrup
2014-03-03 20:28 ` Eric Sunshine
2014-03-04 2:08 ` Duy Nguyen
2014-03-04 8:59 ` Michael Haggerty
2014-03-04 10:24 ` Duy Nguyen
2014-03-04 13:11 ` Michael Haggerty
2014-03-04 18:37 ` Junio C Hamano
2014-03-09 2:49 ` [PATCH/RFC] rebase: new convenient option to edit/reword/delete " Nguyễn Thái Ngọc Duy
2014-03-09 16:30 ` Matthieu Moy
2014-03-10 8:30 ` Michael Haggerty
2014-03-10 8:41 ` Matthieu Moy
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