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From: Junio C Hamano <gitster@pobox.com>
To: Jerry Zhang <jerry@skydio.com>
Cc: Elijah Newren <newren@gmail.com>,
	Git Mailing List <git@vger.kernel.org>,
	Ross Yeager <ross@skydio.com>, Abraham Bachrach <abe@skydio.com>,
	Jerry Zhang <jerryxzha@googlemail.com>,
	Brian Kubisiak <brian.kubisiak@skydio.com>
Subject: Re: [PATCH 1/1] git-apply: Allow simultaneous --cached and --3way options
Date: Mon, 05 Apr 2021 15:23:36 -0700	[thread overview]
Message-ID: <xmqqy2dw4bh3.fsf@gitster.g> (raw)
In-Reply-To: <CAMKO5CtCk_sJsFFiKKFR1wCSyY226CbxPtN6=p6JRzocSuv8jQ@mail.gmail.com> (Jerry Zhang's message of "Mon, 5 Apr 2021 15:12:43 -0700")

Jerry Zhang <jerry@skydio.com> writes:

> I can see what you mean about the user safety issue. However,
> my specific use case (see cover letter) involves an index that does not
> match HEAD, and wouldn't be possible at all if we forced the index to
> match HEAD. Furthermore git-apply --cached even without --3way
> doesn't force the index to match HEAD either, so why force it now?

Primarily because we tend to be extra careful before mergy operation
than any other operation.  Especially without --3way, apply (with or
without --cached/--index) is extra careful to make itself all-or-none
operation to be safe, so that there is no mixed mess that requires
manual intervention (which would further increase the risk of mistakes).

It is OK to introduce a new option to allow a dirty index, and your
tool can pass that option when it calls "apply --cached --3way", but
it would be safe to require a clean index (it does not matter how
dirty the working tree is ;-) by default.


  reply	other threads:[~2021-04-05 22:24 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-03  1:34 [PATCH 0/1] " Jerry Zhang
2021-04-03  1:34 ` [PATCH 1/1] " Jerry Zhang
2021-04-03  3:46   ` Elijah Newren
2021-04-03  4:26     ` Junio C Hamano
2021-04-04  1:02       ` Junio C Hamano
2021-04-05 22:12         ` Jerry Zhang
2021-04-05 22:23           ` Junio C Hamano [this message]
2021-04-05 23:29             ` Jerry Zhang
2021-04-06  0:10               ` Junio C Hamano
2021-04-05 22:08     ` Jerry Zhang
2021-04-05 22:19   ` [PATCH V2] " Jerry Zhang
2021-04-05 22:46     ` Junio C Hamano
2021-04-06  2:52       ` Jerry Zhang
2021-04-06  5:52         ` Junio C Hamano
2021-04-06 21:56           ` Jerry Zhang
2021-04-07  2:25             ` Jerry Zhang
2021-04-06  2:49     ` [PATCH v3] git-apply: allow " Jerry Zhang
2021-04-07 18:03       ` [PATCH v4] " Jerry Zhang
2021-04-07 19:00         ` Junio C Hamano
2021-04-08  2:13         ` [PATCH v5] " Jerry Zhang
2021-04-08 13:33           ` Junio C Hamano
2021-04-12 15:45             ` Elijah Newren
2021-04-12 18:26               ` Junio C Hamano
2021-04-12 15:40           ` Elijah Newren
2021-04-12 18:27             ` Junio C Hamano
2021-04-03  3:04 ` [PATCH 0/1] git-apply: Allow " Elijah Newren
2021-04-05 22:05   ` Jerry Zhang
2021-04-03  5:24 ` Bagas Sanjaya
     [not found]   ` <CAMKO5CtiW84E4XjnPRf-yOPp+ua_u07LsAu=BB0YhmP3+3kYiw@mail.gmail.com>
2021-04-03  8:05     ` Bagas Sanjaya

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