lisp/pcmpl-linux.el

   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, 2008, 2009, 2010, 2011 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 3 of the License, or
  11 ;; (at your option) 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.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 ;;; Commentary:
  22
  23 ;; These functions are for use with GNU/Linux.  Since they depend on a
  24 ;; certain knowledge of the layout of such systems, they probably
  25 ;; won't work very well on other operating systems.
  26
  27 ;;; Code:
  28
  29 (provide 'pcmpl-linux)
  30
  31 (require 'pcomplete)
  32
  33 (defgroup pcmpl-linux nil
  34   "Functions for dealing with GNU/Linux completions."
  35   :group 'pcomplete)
  36
  37 ;; Functions:
  38
  39 ;;;###autoload
  40 (defun pcomplete/kill ()
  41   "Completion for GNU/Linux `kill', using /proc filesystem."
  42   (if (pcomplete-match "^-\\(.*\\)" 0)
  43       (pcomplete-here
  44        (pcomplete-uniqify-list
  45         (split-string
  46          (pcomplete-process-result "kill" "-l")))
  47        (pcomplete-match-string 1 0)))
  48   (while (pcomplete-here
  49           (if (file-directory-p "/proc")
  50               (directory-files "/proc" nil "\\`[0-9]+\\'"))
  51           nil 'identity)))
  52
  53 ;;;###autoload
  54 (defun pcomplete/umount ()
  55   "Completion for GNU/Linux `umount'."
  56   (pcomplete-opt "hVafrnvt(pcmpl-linux-fs-types)")
  57   (while (pcomplete-here (pcmpl-linux-mounted-directories)
  58                          nil 'identity)))
  59
  60 ;;;###autoload
  61 (defun pcomplete/mount ()
  62   "Completion for GNU/Linux `mount'."
  63   (pcomplete-opt "hVanfFrsvwt(pcmpl-linux-fs-types)o?L?U?")
  64   (while (pcomplete-here (pcomplete-entries) nil 'identity)))
  65
  66 (defun pcmpl-linux-fs-types ()
  67   "Return a list of available fs modules on GNU/Linux systems."
  68   (let ((kernel-ver (pcomplete-process-result "uname" "-r")))
  69     (directory-files
  70      (concat "/lib/modules/" kernel-ver "/kernel/fs/"))))
  71
  72 (defun pcmpl-linux-mounted-directories ()
  73   "Return a list of mounted directory names."
  74   (let (points)
  75     (when (file-readable-p "/etc/mtab")
  76       (with-temp-buffer
  77         (insert-file-contents-literally "/etc/mtab")
  78         (while (not (eobp))
  79           (let* ((line (buffer-substring (point) (line-end-position)))
  80                  (args (split-string line " ")))
  81             (setq points (cons (nth 1 args) points)))
  82           (forward-line)))
  83       (pcomplete-uniqify-list points))))
  84
  85 (defun pcmpl-linux-mountable-directories ()
  86   "Return a list of mountable directory names."
  87   (let (points)
  88     (when (file-readable-p "/etc/fstab")
  89       (with-temp-buffer
  90         (insert-file-contents-literally "/etc/fstab")
  91         (while (not (eobp))
  92           (let* ((line (buffer-substring (point) (line-end-position)))
  93                  (args (split-string line "\\s-+")))
  94             (setq points (cons (nth 1 args) points)))
  95           (forward-line)))
  96       (pcomplete-pare-list
  97        (pcomplete-uniqify-list points)
  98        (cons "swap" (pcmpl-linux-mounted-directories))))))
  99
 100 ;; arch-tag: bb0961a6-a623-463d-92c6-497c317293b1
 101 ;;; pcmpl-linux.el ends here