lisp/pcmpl-cvs.el

   1 ;;; pcmpl-cvs.el --- functions for dealing with cvs completions
   2
   3 ;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006, 2007, 2008 Free Software Foundation, Inc.
   5
   6 ;; Author: John Wiegley <johnw@gnu.org>
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 3, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23 ;; Boston, MA 02110-1301, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; These functions provide completion rules for the `cvs' tool.
  28
  29 ;;; Code:
  30
  31 (provide 'pcmpl-cvs)
  32
  33 (require 'pcomplete)
  34 (require 'executable)
  35
  36 (defgroup pcmpl-cvs nil
  37   "Functions for dealing with CVS completions."
  38   :group 'pcomplete)
  39
  40 ;; User Variables:
  41
  42 (defcustom pcmpl-cvs-binary (or (executable-find "cvs") "cvs")
  43   "*The full path of the 'cvs' binary."
  44   :type 'file
  45   :group 'pcmpl-cvs)
  46
  47 ;; Functions:
  48
  49 ;;;###autoload
  50 (defun pcomplete/cvs ()
  51   "Completion rules for the `cvs' command."
  52   (let ((pcomplete-help "(cvs)Invoking CVS"))
  53     (pcomplete-opt "HQqrwlntvfab/T/e*d/z?s")
  54     (pcomplete-here* (pcmpl-cvs-commands))
  55     (cond ((pcomplete-test "add")
  56            (setq pcomplete-help "(cvs)Adding files")
  57            (pcomplete-opt "k?m?")
  58            (while (pcomplete-here (pcmpl-cvs-entries '(??)))))
  59           ((pcomplete-test "remove")
  60            (setq pcomplete-help "(cvs)Removing files")
  61            (pcomplete-opt "flR")
  62            (while (pcomplete-here (pcmpl-cvs-entries '(?U)))))
  63           ((pcomplete-test "init")
  64            (setq pcomplete-help "(cvs)Creating a repository"))
  65           ((pcomplete-test '("login" "logout"))
  66            (setq pcomplete-help "(cvs)Password authentication client"))
  67           ((pcomplete-test "import")
  68            (setq pcomplete-help "(cvs)import")
  69            (pcomplete-opt "dk?I(pcmpl-cvs-entries '(??))b?m?W?"))
  70           ((pcomplete-test "checkout")
  71            (setq pcomplete-help "(cvs)checkout")
  72            (pcomplete-opt "ANPRcflnpsr?D?d/k?j?")
  73            (pcomplete-here (pcmpl-cvs-modules)))
  74           ((pcomplete-test "rtag")
  75            (setq pcomplete-help "(cvs)Creating a branch")
  76            (pcomplete-opt "aflRndbr?DF")
  77            (pcomplete-here (pcmpl-cvs-modules)))
  78           ((pcomplete-test "release")
  79            (setq pcomplete-help "(cvs)release")
  80            (pcomplete-opt "d")
  81            (while (pcomplete-here (pcomplete-dirs))))
  82           ((pcomplete-test "export")
  83            (setq pcomplete-help "(cvs)export")
  84            (pcomplete-opt "NflRnr?D?d/k?")
  85            (pcomplete-here (pcmpl-cvs-modules)))
  86           ((pcomplete-test "commit")
  87            (setq pcomplete-help "(cvs)commit files")
  88            (pcomplete-opt "nRlfF.m?r(pcmpl-cvs-tags '(?M ?R ?A))")
  89            (while (pcomplete-here (pcmpl-cvs-entries '(?M ?R ?A)))))
  90           ((pcomplete-test "diff")
  91            (setq pcomplete-help "(cvs)Viewing differences")
  92            (let ((opt-index pcomplete-index)
  93                  saw-backdate)
  94              (pcomplete-opt "lRD?Nr(pcmpl-cvs-tags)")
  95              (while (< opt-index pcomplete-index)
  96                (if (pcomplete-match "^-[Dr]" (- pcomplete-index opt-index))
  97                    (setq saw-backdate t opt-index pcomplete-index)
  98                  (setq opt-index (1+ opt-index))))
  99              (while (pcomplete-here
 100                      (pcmpl-cvs-entries (unless saw-backdate '(?M)))))))
 101           ((pcomplete-test "unedit")
 102            (setq pcomplete-help "(cvs)Editing files")
 103            (pcomplete-opt "lR")
 104            (while (pcomplete-here (pcmpl-cvs-entries '(?M ?R ?A)))))
 105           ((pcomplete-test "update")
 106            (setq pcomplete-help "(cvs)update")
 107            (pcomplete-opt
 108             (concat "APdflRpk?r(pcmpl-cvs-tags '(?U ?P))D?"
 109                     "j(pcmpl-cvs-tags '(?U ?P))"
 110                     "I(pcmpl-cvs-entries '(??))W?"))
 111            (while (pcomplete-here (pcmpl-cvs-entries '(?U ?P)))))
 112           (t
 113            (while (pcomplete-here (pcmpl-cvs-entries)))))))
 114
 115 (defun pcmpl-cvs-commands ()
 116   "Return a list of available CVS commands."
 117   (with-temp-buffer
 118     (call-process pcmpl-cvs-binary nil t nil "--help-commands")
 119     (goto-char (point-min))
 120     (let (cmds)
 121       (while (re-search-forward "^\\s-+\\([a-z]+\\)" nil t)
 122         (setq cmds (cons (match-string 1) cmds)))
 123       (pcomplete-uniqify-list cmds))))
 124
 125 (defun pcmpl-cvs-modules ()
 126   "Return a list of available modules under CVS."
 127   (with-temp-buffer
 128     (call-process pcmpl-cvs-binary nil t nil "checkout" "-c")
 129     (goto-char (point-min))
 130     (let (entries)
 131       (while (re-search-forward "\\(\\S-+\\)$" nil t)
 132         (setq entries (cons (match-string 1) entries)))
 133       (pcomplete-uniqify-list entries))))
 134
 135 (defun pcmpl-cvs-tags (&optional opers)
 136   "Return all the tags which could apply to the files related to OPERS."
 137   (let ((entries (pcmpl-cvs-entries opers))
 138         tags)
 139     (with-temp-buffer
 140       (apply 'call-process pcmpl-cvs-binary nil t nil
 141              "status" "-v" entries)
 142       (goto-char (point-min))
 143       (while (re-search-forward "Existing Tags:" nil t)
 144         (forward-line)
 145         (while (not (looking-at "^$"))
 146           (unless (looking-at "^\\s-+\\(\\S-+\\)\\s-+")
 147             (error "Error in output from `cvs status -v'"))
 148           (setq tags (cons (match-string 1) tags))
 149           (forward-line))))
 150     (pcomplete-uniqify-list tags)))
 151
 152 (defun pcmpl-cvs-entries (&optional opers)
 153   "Return the Entries for the current directory.
 154 If OPERS is a list of characters, return entries for which that
 155 operation character applies, as displayed by 'cvs -n update'."
 156   (let* ((arg (pcomplete-arg))
 157          (dir (file-name-as-directory
 158                (or (file-name-directory arg) "")))
 159          (nondir (or (file-name-nondirectory arg) ""))
 160          entries)
 161     (if opers
 162         (with-temp-buffer
 163           (and dir (cd dir))
 164           (call-process pcmpl-cvs-binary nil t nil
 165                         "-q" "-n" "-f" "update"); "-l")
 166           (goto-char (point-min))
 167           (while (re-search-forward "^\\(.\\) \\(.+\\)$" nil t)
 168             (if (memq (string-to-char (match-string 1)) opers)
 169                 (setq entries (cons (match-string 2) entries)))))
 170       (with-temp-buffer
 171         (insert-file-contents (concat dir "CVS/Entries"))
 172         (goto-char (point-min))
 173         (while (not (eobp))
 174           (let* ((line (buffer-substring (line-beginning-position)
 175                                          (line-end-position)))
 176                  (fields (split-string line "/"))
 177                  text)
 178             (if (eq (aref line 0) ?/)
 179                 (setq fields (cons "" fields)))
 180             (setq text (nth 1 fields))
 181             (when text
 182               (if (string= (nth 0 fields) "D")
 183                   (setq text (file-name-as-directory text)))
 184               (setq entries (cons text entries))))
 185           (forward-line))))
 186     (setq pcomplete-stub nondir)
 187     (pcomplete-uniqify-list entries)))
 188
 189 ;;; arch-tag: d2aeac43-4bf5-4509-a496-74b863c6642b
 190 ;;; pcmpl-cvs.el ends here