1;;; pcmpl-linux.el --- functions for dealing with GNU/Linux completions
2
3;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
4;;   2005, 2006, 2007 Free Software Foundation, Inc.
5
6;; This file is part of GNU Emacs.
7
8;; GNU Emacs is free software; you can redistribute it and/or modify
9;; it under the terms of the GNU General Public License as published by
10;; the Free Software Foundation; either version 2, or (at your option)
11;; any later version.
12
13;; GNU Emacs is distributed in the hope that it will be useful,
14;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16;; GNU General Public License for more details.
17
18;; You should have received a copy of the GNU General Public License
19;; along with GNU Emacs; see the file COPYING.  If not, write to the
20;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21;; Boston, MA 02110-1301, USA.
22
23;;; Commentary:
24
25;; These functions are for use with GNU/Linux.  Since they depend on a
26;; certain knowledge of the layout of such systems, they probably
27;; won't work very well on other operating systems.
28
29;;; Code:
30
31(provide 'pcmpl-linux)
32
33(require 'pcomplete)
34
35(defgroup pcmpl-linux nil
36  "Functions for dealing with GNU/Linux completions."
37  :group 'pcomplete)
38
39;; Functions:
40
41;;;###autoload
42(defun pcomplete/kill ()
43  "Completion for GNU/Linux `kill', using /proc filesystem."
44  (if (pcomplete-match "^-\\(.*\\)" 0)
45      (pcomplete-here
46       (pcomplete-uniqify-list
47	(split-string
48	 (pcomplete-process-result "kill" "-l")))
49       (pcomplete-match-string 1 0)))
50  (while (pcomplete-here
51	  (if (file-directory-p "/proc")
52	      (let ((default-directory "/proc/"))
53		(mapcar 'directory-file-name
54			(pcomplete-entries "[0-9]+/$"))))
55	  nil 'identity)))
56
57;;;###autoload
58(defun pcomplete/umount ()
59  "Completion for GNU/Linux `umount'."
60  (pcomplete-opt "hVafrnvt(pcmpl-linux-fs-types)")
61  (while (pcomplete-here (pcmpl-linux-mounted-directories)
62			 nil 'identity)))
63
64;;;###autoload
65(defun pcomplete/mount ()
66  "Completion for GNU/Linux `mount'."
67  (pcomplete-opt "hVanfFrsvwt(pcmpl-linux-fs-types)o?L?U?")
68  (while (pcomplete-here (pcomplete-entries) nil 'identity)))
69
70(defun pcmpl-linux-fs-types ()
71  "Return a list of available fs modules on GNU/Linux systems."
72  (let ((kernel-ver (pcomplete-process-result "uname" "-r")))
73    (mapcar
74     (function
75      (lambda (fsobj)
76	(substring fsobj 0 (- (length fsobj) 2))))
77     (let ((default-directory
78	     (concat "/lib/modules/" kernel-ver "/fs/")))
79       (pcomplete-entries "\\.o$")))))
80
81(defun pcmpl-linux-mounted-directories ()
82  "Return a list of mounted directory names."
83  (let (points)
84    (when (file-readable-p "/etc/mtab")
85      (with-temp-buffer
86	(insert-file-contents-literally "/etc/mtab")
87	(while (not (eobp))
88	  (let* ((line (buffer-substring (point) (line-end-position)))
89		 (args (split-string line " ")))
90	    (setq points (cons (nth 1 args) points)))
91	  (forward-line)))
92      (pcomplete-uniqify-list points))))
93
94(defun pcmpl-linux-mountable-directories ()
95  "Return a list of mountable directory names."
96  (let (points)
97    (when (file-readable-p "/etc/fstab")
98      (with-temp-buffer
99	(insert-file-contents-literally "/etc/fstab")
100	(while (not (eobp))
101	  (let* ((line (buffer-substring (point) (line-end-position)))
102		 (args (split-string line "\\s-+")))
103	    (setq points (cons (nth 1 args) points)))
104	  (forward-line)))
105      (pcomplete-pare-list
106       (pcomplete-uniqify-list points)
107       (cons "swap" (pcmpl-linux-mounted-directories))))))
108
109;;; arch-tag: bb0961a6-a623-463d-92c6-497c317293b1
110;;; pcmpl-linux.el ends here
111