diff before recovering file

diff before recovering file

[Ivan Kanis]

Hi,

Has anyone written a function to see the difference between the file
viewed in the buffer and what would be recovered?
-- 
Ivan Kanis
http://ivan.kanis.fr

Personally I'm always ready to learn, although I do not always like
being taught.
    -- Winston Churchill

RE: diff before recovering file

[Doug Lewan]

You can always refuse the recovery initially offered and use diff (M-x diff) or ediff (M-x ediff). After that you can run M-x recover-this-file anytime.

I hope this helps.

,Doug


> -----Original Message-----
> From: help-gnu-emacs-bounces+dougl=shubertticketing.com@gnu.org
> [mailto:help-gnu-emacs-bounces+dougl=shubertticketing.com@gnu.org] On
> Behalf Of Ivan Kanis
> Sent: Thursday, 2012 August 02 10:35
> To: emacs help
> Subject: diff before recovering file
> 
> Hi,
> 
> Has anyone written a function to see the difference between the file
> viewed in the buffer and what would be recovered?
> --
> Ivan Kanis
> http://ivan.kanis.fr
> 
> Personally I'm always ready to learn, although I do not always like
> being taught.
>     -- Winston Churchill

Re: diff before recovering file

[Ivan Kanis]

Ivan wrote:

>> Has anyone written a function to see the difference between the file
>> viewed in the buffer and what would be recovered?

Doug Lewan <dougl@shubertticketing.com> wrote:

> You can always refuse the recovery initially offered and use diff (M-x
> diff) or ediff (M-x ediff). After that you can run M-x
> recover-this-file anytime.

My emacs doesn't prompt for recovery. It could be a setting on my end. I
don't think M-x diff checks automatically with the backed up file. I'll
try next time I see the message.

Take care,
-- 
Ivan Kanis
http://ivan.kanis.fr

Rule your mind or it will rule you.
    -- Horace

Re: diff before recovering file

[Andreas Röhler]

Am 02.08.2012 16:34, schrieb Ivan Kanis:
> Hi,
>
> Has anyone written a function to see the difference between the file
> viewed in the buffer and what would be recovered?
>

(defun diff-autosaved (&optional switches)
   "Diff this file with its auto-saved version or vice versa.
With prefix arg, prompt for diff switches."
   (interactive (list diff-switches))
   (let ((dir default-directory)
         (file (file-name-nondirectory (replace-regexp-in-string "#" "" (buffer-file-name))))
         bak ori)
     (if (string-match "^#" file)
	(setq bak file
	      ori (replace-regexp-in-string "#" "" file))
       (setq bak (concat "#" file "#")
             ori file))
     (setq bak (concat dir bak))
     (setq ori (concat dir ori))
     (diff bak ori switches)))

Cheers,

Andreas

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