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From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: Jiang Xin <worldhello.net@gmail.com>
Cc: Junio C Hamano <gitster@pobox.com>, Jeff King <peff@peff.net>,
	Git List <git@vger.kernel.org>,
	Jiang Xin <zhiyou.jx@alibaba-inc.com>
Subject: Re: [PATCH] revision: allow pseudo options after --end-of-options
Date: Thu, 8 Jul 2021 17:01:28 +0000	[thread overview]
Message-ID: <YOcvaFL7+6qcIOUa@camp.crustytoothpaste.net> (raw)
In-Reply-To: <20210708150316.10855-1-worldhello.net@gmail.com>

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On 2021-07-08 at 15:03:16, Jiang Xin wrote:
> From: Jiang Xin <zhiyou.jx@alibaba-inc.com>
> 
> Options and revisions can be seperated by the option "--end-of-options"
> by introducing commit 19e8789b23 (revision: allow --end-of-options to
> end option parsing, 2019-08-06).  The following command will show
> revisions which have changes on file "bar" on a branch named "--foo":
> 
>     git rev-list --oneline --end-of-options --foo -- bar
> 
> If we want to see revisions between two revisions (rev1 and rev2), we
> can use the following command:
> 
>     git rev-list --oneline --end-of-options rev1..rev2 --
> 
> We know that "rev1..rev2" is a shorthand for "rev2 --not rev1", but
> we can not use the longer expression with option "--not" after the
> "--end-of-options" option.  This is because the parser will not consume
> revision pseudo options after seeing "--end-of-option".
> 
> Allow parsing revision pseudo options after "--end-of-options", the
> following command is valid:
> 
>     git rev-list --oneline --end-of-options rev2 --not rev2 --

I don't think we want to do this.  The goal of --end-of-options is to
prevent parsing all future items as options, so if someone specifies a
revision starting with a dash, we don't end up with it being interpreted
as an option.

Removing this constraint could end up resulting in potential security
issues, which this option was introduced to protect against.

If you want to specify this form, you can write this:

  git rev-list --oneline refs/heads/rev2 --not refs/heads/rev1
-- 
brian m. carlson (he/him or they/them)
Toronto, Ontario, CA

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  reply	other threads:[~2021-07-08 17:02 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-08 15:03 [PATCH] revision: allow pseudo options after --end-of-options Jiang Xin
2021-07-08 17:01 ` brian m. carlson [this message]
2021-07-09  1:33   ` Jiang Xin
2021-07-10 21:54     ` brian m. carlson
2021-07-12 17:54       ` Jeff King
2021-07-12 18:47         ` Junio C Hamano
2021-07-12 19:47           ` Jeff King
2021-07-12 20:09             ` Junio C Hamano
2021-07-13  8:57         ` Jiang Xin
2021-07-13 21:13           ` Jeff King
2021-07-27  6:10             ` Patrick Steinhardt

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