GNU bug report logs - #8399
23.3; save-some-buffers ignores buffer names

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>
To: bug-gnu-emacs <at> gnu.org
Cc: U.S.Reddy <at> cs.bham.ac.uk
Subject: 23.3; save-some-buffers ignores buffer names
Date: Thu, 31 Mar 2011 22:33:19 +0100

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

The save-some-buffers command queries the user as to which buffers
should be saved.  However, if the buffer has a file-name, it uses the
file-name in the dialogue instead of the buffer name.  If the buffer
name happens to differ from the buffer's file-name, this is confusing to
the users.  (It happens quite frequently in VM, which uses obscure
file-names for the caches of POP/IMAP folders, but the buffer names are
recognizable.)

The attached patch (on Emacs-23 head) modifies the dialogue so that
file-names are used in the dialogue only when they coincide with the
buffer names.  Otherwise, buffer names are used preferentially.

Cheers,
Uday



In GNU Emacs 23.3.1 (i386-mingw-nt5.1.2600)
 of 2011-03-10 on 3249CTO
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.5) --no-opt --cflags -Ic:/imagesupport/include'

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: ENU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: VM Presentation

Minor modes in effect:
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  savehist-mode: t
  which-function-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  use-hard-newlines: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  line-number-mode: t
  visual-line-mode: t
  transient-mark-mode: t

Recent input:
y C-x C-f C-g C-x o C-x C-f C-g C-x o C-x C-f <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> - d e v / b z r . l o SPC <return> 
<next> <next> <next> <next> <prior> <next> <next> <next> 
<next> <next> <next> <next> <next> C-s f i l e s . 
e l C-a C-s 2 3 . 3 C-s C-s C-r C-r C-s C-s C-s C-r 
C-r C-r C-r C-r C-r C-r C-r C-r C-a <down-mouse-1> 
<mouse-movement> <mouse-1> C-x C-f <backspace> <backspace> 
<backspace> <backspace> <backspace> N E SPC W SPC <backspace> 
<backspace> <backspace> e t c / N E SPC <return> C-l 
<next> <next> <prior> <next> <next> <next> <next> <next> 
<next> <next> <next> <next> <next> <next> <next> <next> 
<next> <next> <next> <next> <next> <next> C-x k <return> 
C-x o C-x b f i l e s . SPC C-g C-x o C-x C-r C-x , 
C-x o C-x b f i l e s . SPC <return> C-x o M-x e d 
i f f - b u f <return> <return> <return> n n n <switch-frame> 
<down-mouse-1> <mouse-1> C-n C-b C-b C-b C-b C-b C-b 
C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b C-b 
C-b C-b C-x o C-f C-f C-f C-f C-f C-f C-f C-f C-n C-f 
C-f C-f C-b C-b C-b C-b C-b C-a C-SPC C-n C-n C-n C-n 
C-n C-n C-n M-x u n t a b i f y <return> <switch-frame> 
<down-mouse-1> <mouse-1> q <switch-frame> <switch-frame> 
y C-x o M-x e d i f f - b u f <return> <return> <return> 
n n n b q <switch-frame> <switch-frame> y C-x o C-x 
C-s <escape> C-a <switch-frame> <down-mouse-1> <mouse-movement> 
<mouse-1> M-x r e p o r t - e m a c s - b u SPC <r
eturn>

Recent messages:
Processing difference regions ... done
Refining difference region 1 ...
Refining difference region 2 ...
Refining difference region 3 ...
Saving old diff region #3 of buffer A.  To recover, type `ra' [2 times]
Only white-space differences in region 3 
Quit this Ediff session? (y or n) 
Saving file d:/gnu/emacs-23-dev/lisp/files.el...
Wrote d:/gnu/emacs-23-dev/lisp/files.el
Mark set

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d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-install hides d:/gnu/emacs-23.3/lisp/org/org-install
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-inlinetask hides d:/gnu/emacs-23.3/lisp/org/org-inlinetask
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d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-indent hides d:/gnu/emacs-23.3/lisp/org/org-indent
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-id hides d:/gnu/emacs-23.3/lisp/org/org-id
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-icalendar hides d:/gnu/emacs-23.3/lisp/org/org-icalendar
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-html hides d:/gnu/emacs-23.3/lisp/org/org-html
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-habit hides d:/gnu/emacs-23.3/lisp/org/org-habit
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-gnus hides d:/gnu/emacs-23.3/lisp/org/org-gnus
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-freemind hides d:/gnu/emacs-23.3/lisp/org/org-freemind
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-footnote hides d:/gnu/emacs-23.3/lisp/org/org-footnote
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-feed hides d:/gnu/emacs-23.3/lisp/org/org-feed
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-faces hides d:/gnu/emacs-23.3/lisp/org/org-faces
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-exp hides d:/gnu/emacs-23.3/lisp/org/org-exp
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-exp-blocks hides d:/gnu/emacs-23.3/lisp/org/org-exp-blocks
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-docbook hides d:/gnu/emacs-23.3/lisp/org/org-docbook
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-datetree hides d:/gnu/emacs-23.3/lisp/org/org-datetree
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-crypt hides d:/gnu/emacs-23.3/lisp/org/org-crypt
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-compat hides d:/gnu/emacs-23.3/lisp/org/org-compat
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-colview hides d:/gnu/emacs-23.3/lisp/org/org-colview
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-clock hides d:/gnu/emacs-23.3/lisp/org/org-clock
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-bibtex hides d:/gnu/emacs-23.3/lisp/org/org-bibtex
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-bbdb hides d:/gnu/emacs-23.3/lisp/org/org-bbdb
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d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-ascii hides d:/gnu/emacs-23.3/lisp/org/org-ascii
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-archive hides d:/gnu/emacs-23.3/lisp/org/org-archive
d:/gnu/emacs-23.3/../packages/org-7.4/lisp/org-agenda hides d:/gnu/emacs-23.3/lisp/org/org-agenda
d:/Home/udr/share/emacs/rnews hides d:/gnu/emacs-23.3/lisp/obsolete/rnews

Features:
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mm-bodies mm-encode mailcap nnheader gmm-utils mailheader canlock
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noutline outline multi-isearch ediff-merg ediff-diff ediff-wind
ediff-help ediff-util ediff-mult ediff-init ediff cl-specs edebug
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dired image-mode w3m-hist w3m-fb bookmark-w3m w3m-ems wid-edit w3m-ccl
ccl w3m-favicon w3m-image w3m-proc w3m-util vm-w3m tapestry vm-sort
vm-thread vm-crypto vm-imap easymenu u-vm-color my-vm vc-bzr sha1
hex-util etags ps-print ps-def lpr vm-save vm-ps-print vm-rfaddons
vm-menu vm-window vm-toolbar vm-folder vm-mime vm-undo vm-virtual
vm-summary-faces vm-mouse vm-page vm-minibuf vm-message vm-misc vm-macro
bbdb-vm vm-summary vm-motion vm-autoload bbdb-snarf mail-extr rfc822
bbdb-com advice help-fns advice-preload mailabbrev cl cl-19 vm server
w3m-load bbdb-autoloads bbdb timezone vm-autoloads vm-version vm-vars
org-install savehist tex-site tex-mik telnet movement natural-space
NatSpeak sendmail auth-source gnus-util netrc time-date epa-file epa epg
epg-config ange-ftp regexp-opt comint ring echistory chistory ehelp
electric derived which-func imenu edmacro kmacro jka-compr tooltip
ediff-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table ls-lisp
w32-win w32-vars tool-bar dnd fontset image fringe lisp-mode register
page menu-bar rfn-eshadow timer select scroll-bar mldrag mouse jit-lock
font-lock syntax facemenu font-core frame cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew
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case-table epa-hook jka-cmpr-hook help simple abbrev loaddefs button
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format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process multi-tty emacs)

-- 

[save-some-buffers.diff (text/x-patch, attachment)]

Message #8 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>
Cc: 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Thu, 31 Mar 2011 21:01:05 -0400

> The attached patch (on Emacs-23 head) modifies the dialogue so that
> file-names are used in the dialogue only when they coincide with the
> buffer names.  Otherwise, buffer names are used preferentially.

I think the file-name is only useful when you have buffer "file",
"file<2>", "file<3>", ... so your check is going in the right direction
but it should also use file-name when the buffer name matches
(concat "\\<" (regexp-quote (file-name-nondirectory buffer-file-name))
"<[0-9]+>\\'"), and it should never use file-names when uniquify
is used.
IMNSHO,


        Stefan

Message #11 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Fri, 1 Apr 2011 09:39:06 +0100

Stefan Monnier writes:

> I think the file-name is only useful when you have buffer "file",
> "file<2>", "file<3>", ... so your check is going in the right direction
> but it should also use file-name when the buffer name matches
> (concat "\\<" (regexp-quote (file-name-nondirectory buffer-file-name))
> "<[0-9]+>\\'"), and it should never use file-names when uniquify
> is used.

Thanks Stefan.  I didn't think of the file<n> case.  I will submit a
revised patch.  Is uniquifying file-names something that Emacs does?
Or, were you just referring to the VM's cache folder names?

Cheers,
Uday

Message #14 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>
Cc: 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Fri, 01 Apr 2011 10:53:08 -0400

> Thanks Stefan.  I didn't think of the file<n> case.  I will submit a
> revised patch.  Is uniquifying file-names something that Emacs does?

Check uniquify-buffer-name-style.


        Stefan

Message #17 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 15:29:03 +0200

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>> The attached patch (on Emacs-23 head) modifies the dialogue so that
>> file-names are used in the dialogue only when they coincide with the
>> buffer names.  Otherwise, buffer names are used preferentially.
>
> I think the file-name is only useful when you have buffer "file",
> "file<2>", "file<3>", ... so your check is going in the right direction
> but it should also use file-name when the buffer name matches
> (concat "\\<" (regexp-quote (file-name-nondirectory buffer-file-name))
> "<[0-9]+>\\'"), and it should never use file-names when uniquify
> is used.
> IMNSHO,
>
>         Stefan

Did I get the gist right below?  I'm not really sure about whether it's
useful to prefer the buffer names in this way, though -- the use case
here was VM, which has meaningful buffer names that visit obscure
files...  but is that normal?  Isn't it more useful to know what files
you're saving to, and not what buffers they're coming from?

diff --git a/lisp/files.el b/lisp/files.el
index b6abafa4bd..4110412b47 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -5565,7 +5565,20 @@ save-some-buffers
                         (if arg
                             t
                           (setq queried t)
-                          (if (buffer-file-name buffer)
+                          (if (and
+                               (buffer-file-name buffer)
+                               (not uniquify-buffer-name-style)
+                               (or
+                                (equal (buffer-name buffer)
+                                       (file-name-nondirectory 
+                                        (buffer-file-name buffer)))
+                                (string-match
+                                 (concat "\\<"
+                                         (regexp-quote
+                                          (file-name-nondirectory
+                                           buffer-file-name))
+                                         "<[0-9]+>\\'")
+                                 (buffer-name buffer))))
                               (format "Save file %s? "
                                       (buffer-file-name buffer))
                             (format "Save buffer %s? "


-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #20 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 10:01:20 -0400

> Did I get the gist right below?  I'm not really sure about whether it's
> useful to prefer the buffer names in this way, though -- the use case
> here was VM, which has meaningful buffer names that visit obscure
> files...  but is that normal?

I think it's rare for buffer-names to be different from its file name,
and usually if there's a difference the buffer-name is more meaningful
(as in the VM case).

But I'd be surprised if we couldn't find counter examples.

> Isn't it more useful to know what files you're saving to, and not what
> buffers they're coming from?

Maybe we should choose (i.e. display both)?


        Stefan

Message #23 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 10:05:15 -0400

> Maybe we should choose (i.e. display both)?
                ^^
                n't

Sorry 'bout that,


        Stefan

Message #26 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: u.s.reddy <at> cs.bham.ac.uk, monnier <at> iro.umontreal.ca, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 17:42:26 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Date: Tue, 25 Aug 2020 15:29:03 +0200
> Cc: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>, 8399 <at> debbugs.gnu.org
> 
> Isn't it more useful to know what files you're saving to, and not
> what buffers they're coming from?

In the usual case, i.e. where the file name is not something invented
by a VM or somesuch, I think the file name is more useful, yes.  Or at
least it could be.  So maybe we should offer this as an optional
feature, as I presume the OP's use case is somewhat rare?

Message #33 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Uday S Reddy <u.s.reddy <at> cs.bham.ac.uk>, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 16:47:52 +0200

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>> Maybe we should choose (i.e. display both)?
>                 ^^
>                 n't
>
> Sorry 'bout that,

Makes sense; I've now done this when the buffer/file names are
dissimilar.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #36 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: u.s.reddy <at> cs.bham.ac.uk, monnier <at> iro.umontreal.ca, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 16:48:57 +0200

Eli Zaretskii <eliz <at> gnu.org> writes:

> In the usual case, i.e. where the file name is not something invented
> by a VM or somesuch, I think the file name is more useful, yes.  Or at
> least it could be.  So maybe we should offer this as an optional
> feature, as I presume the OP's use case is somewhat rare?

Sorry; I didn't see this before I made the change.  Does the new
behaviour (showing both names if they're dissimilar) look OK to you?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #39 received at 8399 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: u.s.reddy <at> cs.bham.ac.uk, monnier <at> iro.umontreal.ca, 8399 <at> debbugs.gnu.org
Subject: Re: bug#8399: 23.3; save-some-buffers ignores buffer names
Date: Tue, 25 Aug 2020 18:01:14 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Cc: u.s.reddy <at> cs.bham.ac.uk,  monnier <at> iro.umontreal.ca,  8399 <at> debbugs.gnu.org
> Date: Tue, 25 Aug 2020 16:48:57 +0200
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > In the usual case, i.e. where the file name is not something invented
> > by a VM or somesuch, I think the file name is more useful, yes.  Or at
> > least it could be.  So maybe we should offer this as an optional
> > feature, as I presume the OP's use case is somewhat rare?
> 
> Sorry; I didn't see this before I made the change.

Sorry, I had communications problems that prevented me from responding
immediately.

> Does the new behaviour (showing both names if they're dissimilar)
> look OK to you?

I guess it's okay, except that it makes the message longer, so could
cause resizing of the echo-area more frequently.  But since the
additional text is only produced when there's more than one buffer
with the same base-name of its visited file name, I guess that's not a
disaster.  Let's see if users complain.

Thanks.

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