GNU bug report logs - #52242
29.0.50; Feature Request: Offer to run`diff-buffer-with-file' in `recover-this-file' prompt

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From: Visuwesh <visuweshm <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 52242 <at> debbugs.gnu.org
Subject: bug#52242: 29.0.50; Feature Request: Offer to run`diff-buffer-with-file' in `recover-this-file' prompt
Date: Sun, 10 Dec 2023 18:57:56 +0530

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[சனி டிசம்பர் 09, 2023] Eli Zaretskii wrote:

>> From: Visuwesh <visuweshm <at> gmail.com>
>> Date: Thu, 07 Dec 2023 11:02:28 +0530
>> 
>> I didn't notice that recover-file was covered in the Emacs manual, I
>> have now updated the manual and marked the NEWS entry accordingly in the
>> attached patch.
>
> Thanks, I have a few comments:

Thanks for the review.

>> diff --git a/doc/emacs/files.texi b/doc/emacs/files.texi
>> index 917e937d32d..c791a6f1c98 100644
>> --- a/doc/emacs/files.texi
>> +++ b/doc/emacs/files.texi
>> @@ -1325,9 +1325,11 @@ Recover
>>  @end example
>>  
>>    Before asking for confirmation, @kbd{M-x recover-file} displays a
>> -directory listing describing the specified file and the auto-save file,
>> -so you can compare their sizes and dates.  If the auto-save file
>> -is older, @kbd{M-x recover-file} does not offer to read it.
>> +directory listing describing the specified file and the auto-save
>> +file, so you can compare their sizes and dates.  If you answer
>> +@kbd{diff}, it shows the diff between @var{file} and its auto-save
>> +file @file{#@var{file}#}.  If the auto-save file is older, @kbd{M-x
>> +recover-file} does not offer to read it.
>
> It is better to make the documentation of the 'diff' response separate
> from the rest, since the original text doesn't describe the responses
> at all, it only mentions the need for confirmation.
>
> So I suggest to leave the text starting at "Before asking for
> confirmation" alone, and add a new paragraph after that one, like
> this:
>
>   When @kbd{M-x recover-file} asks for confirmation, if you respond
>   with @kbd{diff} or @kbd{=}, it shows the diffs between ...

OK, I made it into a separate paragraph and added that it reprompts for
confirmation.

>> ++++
>> +** 'recover-file' can show diff between auto save file and current file.
>                               ^^^^
> We use "diffs", plural.
>
>> +When answering the prompt with "diff" or "=", it now shows the diff
>                                                                   ^^^^
> Same here.

Done.

>> +between the auto save file and the current file.
>> +                            (choices
>> +                             '(("yes" ?y "recover auto save file")
>> +                               ("no" ?n "don't recover auto save file")
>> +                               ("diff" ?= "diff auto save file with current file")))
>                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Maybe a better text would be
>
>    show changes between auto save file and current file

Thank you, that is indeed clear.  I have now changed the help text to
your suggestion.

[0001-Offer-to-show-diff-against-auto-save-in-recover-file.patch (text/x-diff, attachment)]

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