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From: Jared Hance <jaredhance@gmail•com>
To: git@vger•kernel.org
Subject: Re: [PATCH 1/3] Use startup_info->prefix rather than prefix.
Date: Sat, 3 Mar 2012 23:23:09 +0000 (UTC)	[thread overview]
Message-ID: <loom.20120304T002121-25@post.gmane.org> (raw)
In-Reply-To: 7vbood742a.fsf@alter.siamese.dyndns.org

Junio C Hamano <gitster <at> pobox.com> writes:

> Hrm, that explanation is understandable, but it strongly makes me suspect
> that this change is making the code _more_ error prone in the longer term.
> 
> When somebody wants to add a new caller to a non-builtin, they need to
> think about what prefix to pass, and would realize that they need to call
> setup_git_directory() to get it. With the updated code, they can totally
> forget and call it without any initialized startup_info.
> 
> Adding a totally new command is rare, new non-builtin is rarer, and adding
> trace to it is even more so, so it may not be worth worrying about, but I
> wonder if there is a cheap way to check such a programming mistake.
> 

Well, there are really four options:
- Old code, where user must pass in prefix
- New code, where user must call setup_git_directory()
- Have the function deliver a nice diagnostic error message if startup_info
hasn't been initialized
- Have the function call setup_git_directory() if startup_info hasn't been
initialized

I think one of the latter two is the most sane here.

  reply	other threads:[~2012-03-03 23:23 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-03  2:31 [PATCH 0/3] Fix some documented fixmes Jared Hance
2012-03-03  2:31 ` [PATCH 1/3] Use startup_info->prefix rather than prefix Jared Hance
2012-03-03  7:30   ` Junio C Hamano
2012-03-03  9:50     ` Nguyen Thai Ngoc Duy
2012-03-03 21:44       ` Junio C Hamano
2012-03-03 23:23         ` Jared Hance [this message]
2012-03-03  2:31 ` [PATCH 2/3] Fix memory leak in apply_patch in apply.c Jared Hance
2012-03-03  7:41   ` Junio C Hamano
2012-03-03  2:31 ` [PATCH 3/3] Add threaded versions of functions in symlinks.c Jared Hance
2012-03-03  7:55   ` Junio C Hamano
2012-03-03 14:40 ` [PATCH v2 0/3] Fix a few documents fixmes Jared Hance
2012-03-03 14:40   ` [PATCH v2 1/3] Use startup_info->prefix rather than prefix Jared Hance
2012-03-03 14:47     ` Jeff Epler
2012-03-03 14:40   ` [PATCH v2 2/3] Fix memory leak in apply_patch in apply.c Jared Hance
2012-03-03 15:05     ` Jared Hance
2012-03-03 21:51     ` Junio C Hamano
2012-03-03 14:40   ` [PATCH v2 3/3] Add threaded versions of functions in symlinks.c Jared Hance
2012-03-05 11:00     ` Thomas Rast

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