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From: Junio C Hamano <gitster@pobox.com>
To: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Cc: git@vger.kernel.org, Jared Hance <jaredhance@gmail.com>,
	Jeff King <peff@peff.net>
Subject: Re: [PATCH 1/3] Use startup_info->prefix rather than prefix.
Date: Sat, 03 Mar 2012 13:44:13 -0800	[thread overview]
Message-ID: <7vbood742a.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <CACsJy8DtZLCLfeHNP_eq9kVZxjV3xh3gs6pgQCi=FDZ_Je7_Gw@mail.gmail.com> (Nguyen Thai Ngoc Duy's message of "Sat, 3 Mar 2012 16:50:33 +0700")

Nguyen Thai Ngoc Duy <pclouds@gmail.com> writes:

> This patch makes this function only usable when startup_info pointer
> is initialized. As "git" binary is the only caller, the change is ok.
> If non-builtin commands want to use this function, they need to
> initialize startup_info first.

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.

  reply	other threads:[~2012-03-03 21:44 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 [this message]
2012-03-03 23:23         ` Jared Hance
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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