From: Duy Nguyen <pclouds@gmail.com>
To: Jacob Keller <jacob.e.keller@intel.com>
Cc: Git Mailing List <git@vger.kernel.org>,
Jacob Keller <jacob.keller@gmail.com>
Subject: Re: [PATCH] reset: add an example of how to split a commit into two
Date: Fri, 3 Feb 2017 16:05:48 +0700 [thread overview]
Message-ID: <CACsJy8B=OEdUbc3_Svci_whtk=-Bz-4BP4y-Xr_u3CU81dxvCA@mail.gmail.com> (raw)
In-Reply-To: <20170203003038.22278-1-jacob.e.keller@intel.com>
On Fri, Feb 3, 2017 at 7:30 AM, Jacob Keller <jacob.e.keller@intel.com> wrote:
> From: Jacob Keller <jacob.keller@gmail.com>
>
> It is sometimes useful to break a commit into parts to more logically
> show how the code changes. There are many possible ways to achieve this
> result, but one simple and powerful one is to use git reset -p.
>
> Add an example to the documentation showing how this can be done so that
> users are more likely to discover this, instead of inventing more
> painful methods such as re-writing code from scratch, or duplicating git
> add -p more times than necessary.
>
> Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
> ---
> Documentation/git-reset.txt | 23 +++++++++++++++++++++++
> 1 file changed, 23 insertions(+)
>
> diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt
> index 25432d9257f9..4adac7a25bf9 100644
> --- a/Documentation/git-reset.txt
> +++ b/Documentation/git-reset.txt
> @@ -292,6 +292,29 @@ $ git reset --keep start <3>
> <3> But you can use "reset --keep" to remove the unwanted commit after
> you switched to "branch2".
>
> +Split a commit into two::
> ++
> +Suppose that you have created a commit, but later decide that you want to split
> +the changes into two separate commits, including only part of the old commit
> +into the first commit, and including the rest as a separate commit on top. You
> +can use git reset in patch mode to interactively select which hunks to split
> +out into a separate commit.
> ++
> +------------
> +$ git reset -p HEAD^ <1>
For good practice, perhaps put "git diff --cached HEAD^" before "git commit".
I tend to avoid "reset -p" and "checkout -p" though because sometimes
it does not work. Not sure if it's just me, I think it may have
something to do with splitting hunks. So I usually go with "reset
HEAD^" then "add -p" and "commit -c HEAD@{1}" instead.
> +$ git commit --amend <2>
> +$ git commit ... <3>
> +------------
> ++
> +<1> This lets you interactively undo changes between HEAD^ and HEAD, so you can
> + select which parts to remove from the initial commit. The changes are
> + placed into the index, leaving the working tree untouched.
> +<2> Now, you ammend the initial commit with the modifications that you just
s/ammend/amend/
> + made in the index.
> +<3> Finally, you can add and then commit the final original unmodified files
> + back as the second commit, enabling you to logically separate a commit
> + into a sequence of two commits instead.
--
Duy
next prev parent reply other threads:[~2017-02-03 9:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-03 0:30 [PATCH] reset: add an example of how to split a commit into two Jacob Keller
2017-02-03 9:05 ` Duy Nguyen [this message]
2017-02-03 18:59 ` Junio C Hamano
2017-02-03 20:15 ` Jacob Keller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CACsJy8B=OEdUbc3_Svci_whtk=-Bz-4BP4y-Xr_u3CU81dxvCA@mail.gmail.com' \
--to=pclouds@gmail.com \
--cc=git@vger.kernel.org \
--cc=jacob.e.keller@intel.com \
--cc=jacob.keller@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).