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bug#1384: marked as done (vc-diff-switches inconsistencies)

From: Emacs bug Tracking System
Subject: bug#1384: marked as done (vc-diff-switches inconsistencies)
Date: Wed, 3 Dec 2008 00:10:05 -0800

Your message dated Wed, 3 Dec 2008 02:59:34 -0500
with message-id <address@hidden>
and subject line Re: Bug#1384
has caused the Emacs bug report #1384,
regarding vc-diff-switches inconsistencies
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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1384: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=1384
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: vc-diff for the hg backend ignore diff switches variables Date: Tue, 23 Sep 2008 16:57:24 +0200
Three related problems:

Apparently the hg backend of vc ignores both diff-switches and

The vc-hg-diff-switches variables is not defined.

The hg backend is special with respect to the vc-diff-switches
variable.  Its doc says:

  A string or list of strings specifying switches for diff under VC.
  When running diff under a given BACKEND, VC concatenates the values of
  `diff-switches', `vc-diff-switches', and `vc-BACKEND-diff-switches' to
  get the switches for that command.  Thus, `vc-diff-switches' should
  contain switches that are specific to version control, but not
  specific to any particular backend.

This behaviour assumes that the diff switches can be accumulated.
however, it does not allow for removing them for a particular backend.
For example, I have

(setq diff-switches "-pu"
      vc-diff-switches "-b")

which works for the cvs and rcs backends.  However, it would not work
for the hg backend, as 'hg diff' does not tolerate the -u option.  This
problem would require a different way of combining the diff switches.

--- End Message ---
--- Begin Message --- Subject: Re: Bug#1384 Date: Wed, 3 Dec 2008 02:59:34 -0500
I believe this is tidied up now.

--- End Message ---

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