git.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Junio C Hamano <gitster@pobox.com>
To: Mark Amery <markrobertamery@gmail.com>
Cc: "Torsten Bögershausen" <tboegi@web.de>, git@vger.kernel.org
Subject: Re: Bug: Changing folder case with `git mv` crashes on case-insensitive file system
Date: Fri, 07 May 2021 06:03:21 +0900	[thread overview]
Message-ID: <xmqqlf8ry3qe.fsf@gitster.g> (raw)
In-Reply-To: <CAD8jeghZKDcp=weHtcMZ4z8KaO1jQJqfPqaRtYgtiwrX-1+NNg@mail.gmail.com> (Mark Amery's message of "Thu, 6 May 2021 10:12:40 +0100")

Mark Amery <markrobertamery@gmail.com> writes:

>   That is: first check the inode or file ID of the src and dst passed
> to `git mv`. If they are different and the second one is a folder,
> move src inside the existing folder. If either they are the same or
> the second one is not a folder, then do a rename.
>
>   It seems to me that this approach automatically handles stuff like
> `git mv bär.txt bÄr.txt` plus any other rules about names being equal
> (like two different sequences of code points that both express "à"),
> all without Git ever needing to explicitly check whether two names are
> case-insensitively equal. Am I missing something?
>
> Sorry if any of the above is dumb or if I'm reiterating things others
> have already said without realising it.

There is nothing dumb about the idea.  I think that is essentially
what brian and I outlined in the earlier exchange, except that we
need to use something other than inum on Windows to decide if two
pathnames refer to the same filesystem entity, and the approach we
suggested was to use the inum-based check _after_ seeing the current
code fail with EINVAL in the error codepath, instead of doing so
upfront.

Thanks.


      parent reply	other threads:[~2021-05-06 21:03 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-03 17:25 Mark Amery
2021-05-03 22:58 ` brian m. carlson
2021-05-04  3:46   ` Junio C Hamano
2021-05-04 11:20     ` brian m. carlson
2021-05-05 13:51       ` Johannes Schindelin
2021-05-06  0:38         ` Junio C Hamano
2021-05-04 15:19 ` Torsten Bögershausen
2021-05-05  0:23   ` Junio C Hamano
2021-05-05  2:12     ` brian m. carlson
2021-05-06  4:34     ` Torsten Bögershausen
2021-05-06  9:12       ` Mark Amery
2021-05-06 13:11         ` Bagas Sanjaya
2021-05-06 14:53         ` Torsten Bögershausen
2021-05-06 21:03         ` Junio C Hamano [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=xmqqlf8ry3qe.fsf@gitster.g \
    --to=gitster@pobox.com \
    --cc=git@vger.kernel.org \
    --cc=markrobertamery@gmail.com \
    --cc=tboegi@web.de \
    --subject='Re: Bug: Changing folder case with `git mv` crashes on case-insensitive file system' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).