From: Nathan Neulinger <nneul@neulinger.org>
To: Santiago Torres <santiago@nyu.edu>
Cc: git@vger.kernel.org
Subject: Re: git status always modifies index?
Date: Wed, 22 Nov 2017 10:20:43 -0600 [thread overview]
Message-ID: <dfbf4af3-e87c-bdcb-7544-685572925a50@neulinger.org> (raw)
In-Reply-To: <20171122161014.djkdygmclk227xmq@LykOS.localdomain>
I just got an answer to my stackoverflow question on this, apparently it's already implemented:
https://stackoverflow.com/questions/47436939/how-to-run-git-status-without-modifying-git-index-such-as-in-a-prompt-command
There is a "--no-optional-locks" command in 2.15 that looks like it does exactly what I need.
-- Nathan
On 11/22/17 10:10 AM, Santiago Torres wrote:
> On Wed, Nov 22, 2017 at 09:37:09AM -0600, Nathan Neulinger wrote:
>> What I'm meaning is - why does it need to write the index back out to disk?
>>
>> From looking at the code in builtin/commit.c it looks like it takes a lock
>> on the index, collects the status, and then unconditionally rewrites the
>> index file.
>>
> Hmm, I just took a look at those lines and I see what you mean. From
> what I understand, this is to cache the result of the index computation
> for ensuing git calls.
>
>> I'm proposing that the update_index_if_able call not actually be issued if
>> it would result in a ownership change on the underlying file - such as a
>> simple case of root user or other privileged account issuing 'git status' in
>> a directory.
>
> I don't think this would be a desire-able default behavior. I'd wager
> that running git status using different accounts is not a great idea ---
> specially interacting with a user repository as root.
>
>> I understand completely that it would be expected to be altered if the
>> privileged user did a commit/add or any other operation that was inherently
>> a 'write' operation, but doesn't seem like status should be one of those
>> cases.
>
> I think it's because of the reasons above. That being said, I don't know
> what the rest of the community would think of something akin to a
> --no-update-index type flag.
>
> Cheers!
> -Santiago.
>
--
------------------------------------------------------------
Nathan Neulinger nneul@neulinger.org
Neulinger Consulting (573) 612-1412
next prev parent reply other threads:[~2017-11-22 16:20 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-22 15:19 git status always modifies index? Nathan Neulinger
2017-11-22 15:30 ` Santiago Torres
2017-11-22 15:37 ` Nathan Neulinger
2017-11-22 16:10 ` Santiago Torres
2017-11-22 16:20 ` Nathan Neulinger [this message]
2017-11-22 16:24 ` Santiago Torres
2017-11-22 20:27 ` Jonathan Nieder
2017-11-22 21:17 ` Jeff King
2017-11-22 21:56 ` Jonathan Nieder
2017-11-22 22:06 ` Jeff King
2017-11-25 21:55 ` Johannes Schindelin
2017-11-26 19:25 ` Jeff King
2017-11-26 21:55 ` Johannes Schindelin
2017-11-27 5:24 ` Jeff King
2017-11-27 6:03 ` Junio C Hamano
2017-11-27 20:50 ` Johannes Schindelin
2017-11-27 6:04 ` [PATCH] git-status.txt: mention --no-optional-locks Jeff King
2017-11-27 6:07 ` Junio C Hamano
2017-11-27 10:22 ` Kaartic Sivaraam
2017-11-27 20:54 ` Johannes Schindelin
2017-11-27 20:44 ` git status always modifies index? Johannes Schindelin
2017-11-27 20:49 ` Jonathan Nieder
2017-11-26 3:32 ` Junio C Hamano
2017-11-26 9:35 ` Junio C Hamano
2017-11-27 4:43 ` Jeff King
2017-11-27 4:56 ` Junio C Hamano
2017-11-27 5:00 ` Jeff King
2017-11-27 20:57 ` Jonathan Nieder
2017-11-27 22:50 ` Jeff King
2017-12-03 0:37 ` Junio C Hamano
2017-11-26 19:27 ` Jeff King
2017-11-27 0:47 ` Junio C Hamano
2017-11-27 6:12 ` Jeff King
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