git.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jonathan Nieder <jrnieder@gmail.com>
To: Nemina Amarasinghe <neminaa@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH] simplifying branch.c:install_branch_config() if()
Date: Thu, 13 Mar 2014 19:10:52 -0700	[thread overview]
Message-ID: <20140314021052.GH15625@google.com> (raw)
In-Reply-To: <1394761558-4888-1-git-send-email-neminaa@gmail.com>

Hi,

Nemina Amarasinghe wrote:

> Signed-off-by: Nemina Amarasinghe <neminaa@gmail.com>

The above is a place to explain why this is a good change.  For example:

	When it prints a message indicating what it has done,
	install_branch_config() treats the (!remote_is_branch && origin)
	and (!remote_is_branch && !origin) cases separately.  But they
	are the same, and it uses the same message for both.

	Simplify by just checking for !remote_is_branch.

	Noticed using the magic-identical-branch-checker tool.

	Signed-off-by: ...

(That's just a first random hypothetical guess --- of course please do
not use it but put your own rationale for the change there.)

[...]
> --- a/branch.c
> +++ b/branch.c
> @@ -87,16 +87,11 @@ void install_branch_config(int flag, const char *local, const char *origin, cons
>  				  _("Branch %s set up to track local branch %s by rebasing.") :
>  				  _("Branch %s set up to track local branch %s."),
>  				  local, shortname);
> -		else if (!remote_is_branch && origin)
> +		else if (!remote_is_branch)
>  			printf_ln(rebasing ?
>  				  _("Branch %s set up to track remote ref %s by rebasing.") :
>  				  _("Branch %s set up to track remote ref %s."),
>  				  local, remote);
> -		else if (!remote_is_branch && !origin)
> -			printf_ln(rebasing ?
> -				  _("Branch %s set up to track local ref %s by rebasing.") :
> -				  _("Branch %s set up to track local ref %s."),
> -				  local, remote);

Is this safe?  Today branch.c::create_branch checks that the argument
to e.g. --set-upstream-to is either in refs/heads/* or the image of
some remote, but what is making sure that remains true tomorrow?

So if changing this, I would be happier if the "if" condition were
still (!remote_is_branch && origin) so the impossible case could emit
a BUG.

Hope that helps,
Jonathan

  reply	other threads:[~2014-03-14  2:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-14  1:45 [PATCH] simplifying branch.c:install_branch_config() if() Nemina Amarasinghe
2014-03-14  2:10 ` Jonathan Nieder [this message]
2014-03-14  4:22   ` Nemina Amarasinghe

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

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20140314021052.GH15625@google.com \
    --to=jrnieder@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=neminaa@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.
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 NNTP newsgroup(s).