GNU bug report logs - #44617
26.3; diff-mode ignores diff-switches

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Package: emacs;

Reported by: Francesco Potortì <pot <at> gnu.org>

Date: Fri, 13 Nov 2020 12:12:01 UTC

Severity: normal

Tags: moreinfo

Found in version 26.3

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Message #20 received at 44617 <at> debbugs.gnu.org (full text, mbox):

From: Francesco Potortì <pot <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 44617 <at> debbugs.gnu.org
Subject: Re: bug#44617: 26.3; diff-mode ignores diff-switches
Date: Sat, 05 Dec 2020 22:05:19 +0100

>> diff-mode relies on the diff-command variables defined in diff.el, but
>> ignores diff-switches
>>
>> I think this is a bug
>
>Do you mean the `diff-refresh-hunk' command?

No, it's a different issue.

>What's the use case you have for diff-switches where you'd want this
>command to heed diff-switches?

I have two use cases.

1) When using dired-diff (hit = in a dired buffer) diff-switches is not used.

2) Same is when using vc-diff (C-x v =) in a VC buffer.

Apparently case 2) is a bug, because the docs of vc-diff-switches says
that diff-switches should be used.  Case 1) could simply be unexpected
behaviour.
This bug report was last modified 4 years and 171 days ago.

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