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;;; pcmpl-unix.el --- standard UNIX completions
;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'pcomplete)
;; User Variables:
(defcustom pcmpl-unix-group-file "/etc/group"
"If non-nil, a string naming the group file on your system."
:type '(choice file (const nil))
:group 'pcmpl-unix)
(defcustom pcmpl-unix-passwd-file "/etc/passwd"
"If non-nil, a string naming the passwd file on your system."
:type '(choice file (const nil))
:group 'pcmpl-unix)
(defcustom pcmpl-ssh-known-hosts-file "~/.ssh/known_hosts"
"If non-nil, a string naming your SSH \"known_hosts\" file.
This allows completion of SSH host names. Note that newer
versions of ssh hash the hosts by default to prevent
Island-hopping SSH attacks. This can be disabled, at some risk,
with the SSH option \"HashKnownHosts no\"."
:type '(choice file (const nil))
:group 'pcmpl-unix
:version "23.1")
;; Functions:
;;;###autoload
(defun pcomplete/cd ()
"Completion for `cd'."
(while (pcomplete-here (pcomplete-dirs))))
;;;###autoload
(defalias 'pcomplete/pushd 'pcomplete/cd)
;;;###autoload
(defun pcomplete/rmdir ()
"Completion for `rmdir'."
(while (pcomplete-here (pcomplete-dirs))))
;;;###autoload
(defun pcomplete/rm ()
"Completion for `rm'."
(let ((pcomplete-help "(fileutils)rm invocation"))
(pcomplete-opt "dfirRv")
(while (pcomplete-here (pcomplete-all-entries) nil
'expand-file-name))))
;;;###autoload
(defun pcomplete/xargs ()
"Completion for `xargs'."
(pcomplete-here (funcall pcomplete-command-completion-function))
(funcall (or (pcomplete-find-completion-function (pcomplete-arg 1))
pcomplete-default-completion-function)))
;;;###autoload
(defalias 'pcomplete/time 'pcomplete/xargs)
;;;###autoload
(defun pcomplete/which ()
"Completion for `which'."
(while (pcomplete-here (funcall pcomplete-command-completion-function))))
(defun pcmpl-unix-read-passwd-file (file)
"Return an alist correlating gids to group names in FILE."
(let (names)
(when (file-readable-p file)
(with-temp-buffer
(insert-file-contents file)
(goto-char (point-min))
(while (not (eobp))
(let* ((fields
(split-string (buffer-substring
(point) (progn (end-of-line)
(point))) ":")))
(setq names (cons (nth 0 fields) names)))
(forward-line))))
(pcomplete-uniqify-list names)))
(defsubst pcmpl-unix-group-names ()
"Read the contents of /etc/group for group names."
(if pcmpl-unix-group-file
(pcmpl-unix-read-passwd-file pcmpl-unix-group-file)))
(defsubst pcmpl-unix-user-names ()
"Read the contents of /etc/passwd for user names."
(if pcmpl-unix-passwd-file
(pcmpl-unix-read-passwd-file pcmpl-unix-passwd-file)))
;;;###autoload
(defun pcomplete/chown ()
"Completion for the `chown' command."
(unless (pcomplete-match "\\`-")
(if (pcomplete-match "\\`[^.]*\\'" 0)
(pcomplete-here* (pcmpl-unix-user-names))
(if (pcomplete-match "\\.\\([^.]*\\)\\'" 0)
(pcomplete-here* (pcmpl-unix-group-names)
(pcomplete-match-string 1 0))
(pcomplete-here*))))
(while (pcomplete-here (pcomplete-entries))))
;;;###autoload
(defun pcomplete/chgrp ()
"Completion for the `chgrp' command."
(unless (pcomplete-match "\\`-")
(pcomplete-here* (pcmpl-unix-group-names)))
(while (pcomplete-here (pcomplete-entries))))
;; ssh support by Phil Hagelberg.
;; http://www.emacswiki.org/cgi-bin/wiki/pcmpl-ssh.el
(defun pcmpl-ssh-hosts ()
"Return a list of hosts found in `pcmpl-ssh-known-hosts-file'."
(when (and pcmpl-ssh-known-hosts-file
(file-readable-p pcmpl-ssh-known-hosts-file))
(with-temp-buffer
(insert-file-contents-literally pcmpl-ssh-known-hosts-file)
(let (ssh-hosts-list)
(while (re-search-forward "^ *\\([-.[:alnum:]]+\\)[, ]" nil t)
(add-to-list 'ssh-hosts-list (match-string 1))
(while (and (looking-back ",")
(re-search-forward "\\([-.[:alnum:]]+\\)[, ]"
(line-end-position) t))
(add-to-list 'ssh-hosts-list (match-string 1))))
ssh-hosts-list))))
;;;###autoload
(defun pcomplete/ssh ()
"Completion rules for the `ssh' command."
(pcomplete-opt "1246AaCfgKkMNnqsTtVvXxYbcDeFiLlmOopRSw" nil t)
(pcomplete-here (pcmpl-ssh-hosts)))
;;;###autoload
(defun pcomplete/scp ()
"Completion rules for the `scp' command.
Includes files as well as host names followed by a colon."
(pcomplete-opt "1246BCpqrvcFiloPS")
(while t (pcomplete-here (append (pcomplete-all-entries)
(mapcar (lambda (host)
(concat host ":"))
(pcmpl-ssh-hosts))))))
(provide 'pcmpl-unix)
;; arch-tag: 3f9eb5af-7e0e-449d-b586-381cbbf8fc5c
;;; pcmpl-unix.el ends here
|
