GNU bug report logs - #1422
diff upon trouble

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: jidanni <at> jidanni.org
Subject: bug#1422 closed by Chong Yidong <cyd <at> stupidchicken.com> (diff 
 upon trouble)

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This is an automatic notification regarding your bug report
which was filed against the emacs package:

#1422: diff upon trouble

It has been closed by Chong Yidong <cyd <at> stupidchicken.com>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Chong Yidong <cyd <at> stupidchicken.com> by
replying to this email.


-- 
1422: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=1422
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Chong Yidong <cyd <at> stupidchicken.com>
To: jidanni <at> jidanni.org
Cc: 1422-done <at> debbugs.gnu.org
Subject: diff upon trouble
Date: Mon, 24 Nov 2008 16:12:28 -0500

> Now let's examine emacs M-x diff's final line on three different exit values:
> 0:Diff finished.  Tue Nov 25...
> 1:Diff finished (no differences).  Tue Nov 25...
> 2:Diff finished.  Tue Nov 25...
>
> The latter should also mention *** Trouble Encountered *** even if it
> is mentioned by the diff error messages. We want to see it on the
> bottom line too.

Fixed, thanks.

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From: jidanni <at> jidanni.org
To: bug-gnu-emacs <at> gnu.org
Cc: bug-gnu-utils <at> gnu.org
Subject: diff upon trouble
Date: Tue, 25 Nov 2008 01:57:32 +0800

Digging deep into (info "(diff)Invoking diff") we learn
   An exit status of 0 means no differences were found, 1 means some
   differences were found, and 2 means trouble.
which should also be on diff's man page. Bug CC'd.
Also "trouble" should be explained.
P.S. maybe warn on diff a a: same file. OK never mind.

Now let's examine emacs M-x diff's final line on three different exit values:
0:Diff finished.  Tue Nov 25...
1:Diff finished (no differences).  Tue Nov 25...
2:Diff finished.  Tue Nov 25...

The latter should also mention *** Trouble Encountered *** even if it
is mentioned by the diff error messages. We want to see it on the
bottom line too.

No diff-version variable. Can't tell from diff.el either.
emacs-version "22.2.1". diff (GNU diffutils) 2.8.1

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