GNU bug report logs - #12357
24.2; list-load-path-shadow should ignore .dir-locals.el

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Johan Claesson <johanclaesson <at> bredband.net>
Subject: bug#12357: closed (Re: bug#12357: 24.2; list-load-path-shadow
 should ignore .dir-locals.el)
Date: Thu, 06 Mar 2014 02:08:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#12357: 24.2; list-load-path-shadow should ignore .dir-locals.el

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 12357 <at> debbugs.gnu.org.

-- 
12357: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12357
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Glenn Morris <rgm <at> gnu.org>
To: 12357-done <at> debbugs.gnu.org
Subject: Re: bug#12357: 24.2;
 list-load-path-shadow should ignore .dir-locals.el
Date: Wed, 05 Mar 2014 21:07:57 -0500

Version: 24.4

On reflection, I think you were right from the start, and that this
command should simply ignore dir-locals, since they are not looked up
via load-path anyway. So I made that change. Sorry for the delay.
I do not think that a specialized command for dealing with dir-locals
is required. (We should add inheritance so it's not an issue.)

[Message part 3 (message/rfc822, inline)]

From: Johan Claesson <johanclaesson <at> bredband.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2; list-load-path-shadow should ignore .dir-locals.el
Date: Wed, 05 Sep 2012 15:38:56 +0200

Hi,

A minor suggestion for shadow.el.  list-load-path-shadows will detect
if there are two lisp files with the same name in the load-path.  Such
a clash could cause problems for normal lisp files.  But i think it is
normal to have multiple .dir-locals.el files spread across the
load-path.  In order to avoid false warnings list-load-path-shadows
could ignore the special file name .dir-locals.el.

If you agree with this change it may be implemented by adding
".dir-locals" to the ignore list at line 118 of shadow.el:

		      ;; Ignore these files.
		      (member file '("subdirs" "leim-list" ".dir-locals")))

The following test case creates two temporary directories and puts
empty .dir-locals.el files in them.  It currently returns
"/tmp/dir1-28571pXx/.dir-locals hides /tmp/dir2-28571bhA/.dir-locals".

(let* ((dir1 (make-temp-file "/tmp/dir1-" t))
       (dir2 (make-temp-file "/tmp/dir2-" t)))
  (require 'shadow)
  (write-region "" nil (concat dir1 "/.dir-locals.el"))
  (write-region "" nil (concat dir2 "/.dir-locals.el"))
  (let* ((load-path (list dir1 dir2))
	 (shadows (list-load-path-shadows t)))
    (delete-directory dir1 t)
    (delete-directory dir2 t)
    shadows))

Regards,

/Johan



In GNU Emacs 24.2.1 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
 of 2012-09-03 on goblin
Windowing system distributor `The X.Org Foundation', version 11.0.11203000
Configured using:
 `configure '--prefix=/home/jcl/usr' '--without-toolkit-scroll-bars'
 '-C' '--disable-maintainer-mode' '--without-compress-info''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Summary

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Recent input:
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SPC SPC SPC SPC [ [ [ [ [ [ C-1 C-1 p s SPC - e f SPC 
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r o c e d <return> M-1 T C-s e m a c s C-s C-a C-s 
C-s C-s C-s <C-home> C-s s e n d <home> F C-g f a l 
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C-1 C-2 <return> <return> f i n d SPC . SPC - n a m 
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<backspace> r e p o r C-g C-q i M-g n n C-p C-p C-p 
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n>

Recent messages:
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Load-path shadows:
None found.

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