From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Ivan Kanis <ivan.kanis@googlemail.com>
Cc: emacs devel <emacs-devel@gnu.org>
Subject: Re: [PATCH] show difference when recovering file
Date: Mon, 17 Dec 2012 09:16:15 -0500 [thread overview]
Message-ID: <jwvpq286adc.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <871uep9ch3.fsf@googlemail.com> (Ivan Kanis's message of "Mon, 17 Dec 2012 11:53:12 +0100")
>> There's a problem here: the autosave file is saved using the internal
>> coding-system (so it always succeeds, no matter what weird mix of
>> characters happens to be currently in the buffer), where the
>> non-autosave file will use the encoding which happens to be in use for
>> this file.
> Is it possible to open the non-autosave file in the internal format just
> to run the diff? I guess not.
There's no "open"ing involved: the two files are passed to `diff' and
that's that. So, to fix the problem, we have to load the non-autoload
file, save it using the internal-encoding into a new temporary file, and
then pass this file to diff.
BTW, the "save-to-temp and then diff" is called `diff-buffer-with-file'.
>> So the diff may show lots of spurious changes.
> I think it's a borderline case. It's more useful to see what the
> difference is between the two files even though on rare occasion the
> diff will show garbage
I'd rather do it right.
BTW, the way the user can do it currently, is to say "yes" to recover,
and then use M-x diff-buffer-with-file RET to decide whether or not
recovering is a good idea.
Rather than always popping up a *diff* buffer, we could also change the
prompt from "yes/no" to "yes/no/diff".
Stefan
next prev parent reply other threads:[~2012-12-17 14:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-16 16:56 [PATCH] show difference when recovering file Ivan Kanis
2012-12-16 18:12 ` martin rudalics
2012-12-16 21:55 ` Stefan Monnier
2012-12-17 10:53 ` Ivan Kanis
2012-12-17 14:16 ` Stefan Monnier [this message]
2012-12-17 16:04 ` Ivan Kanis
2012-12-17 17:50 ` Stefan Monnier
2012-12-17 20:27 ` Ivan Kanis
2012-12-17 17:03 ` Wolfgang Jenkner
2012-12-17 23:15 ` Stephen J. Turnbull
2012-12-17 17:35 ` Achim Gratz
2012-12-17 9:27 ` Juri Linkov
2012-12-17 11:16 ` Ivan Kanis
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=jwvpq286adc.fsf-monnier+emacs@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=emacs-devel@gnu.org \
--cc=ivan.kanis@googlemail.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.