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bug#16260: 24.3.50; shell-command-completion and removal of exec-directo
From: |
Eli Zaretskii |
Subject: |
bug#16260: 24.3.50; shell-command-completion and removal of exec-directory from exec-path |
Date: |
Thu, 26 Dec 2013 22:26:29 +0200 |
shell--command-completion-data has this FIXME comment:
(defun shell--command-completion-data ()
"Return the completion data for the command at point."
(let* ((filename (or (comint-match-partial-filename) ""))
(start (if (zerop (length filename)) (point) (match-beginning 0)))
(end (if (zerop (length filename)) (point) (match-end 0)))
(filenondir (file-name-nondirectory filename))
(path-dirs (cdr (reverse exec-path))) ;FIXME: Why `cdr'?
As Jarek pointed out in his patch for bug #15461, the doc string of
shell-dynamic-complete-command hints on the reason:
This function is similar to `comint-dynamic-complete-filename', except that it
searches `exec-path' (minus the trailing Emacs library path) for completion
candidates. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
It talks about "Emacs library path", but actually means the libexec
directory, which is normally the value of exec-directory.
However, just clipping away the last member of exec-path list only
does TRT in the default case. It will not work if either of the
following happens:
. The user changes epaths.h to specify more than a single directory
. EMACSPATH is set in the environment
To get this right, we should record at startup time the value of
exec-path before appending $PATH to it, and then filter out the
directories recorded at that time in shell--command-completion-data.
As a minor nit, the doc string of shell-dynamic-complete-command
should not talk about "library path", which is a non-existing term in
Emacs, but instead mention exec-directory.
In GNU Emacs 24.3.50.187 (i686-pc-mingw32)
of 2013-12-26 on HOME-C4E4A596F7
Bzr revision: 115758 fgallina@gnu.org-20131226164519-xccapciswuo6gvid
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
`configure --prefix=/d/usr --enable-checking=yes,glyphs 'CFLAGS=-O0
-gdwarf-2 -g3''
Important settings:
value of $LANG: ENU
locale-coding-system: cp1255
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
M-x r e p o r t - e m <tab> <return>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Load-path shadows:
None found.
Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util help-fns mail-prsvr mail-utils time-date tooltip electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls-lisp
w32-common-fns disp-table w32-win w32-vars tool-bar dnd fontset image
regexp-opt fringe tabulated-list newcomment lisp-mode prog-mode register
page menu-bar rfn-eshadow timer select scroll-bar 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
greek romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process w32notify w32
multi-tty emacs)
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- bug#16260: 24.3.50; shell-command-completion and removal of exec-directory from exec-path,
Eli Zaretskii <=