elisp-vcs/dvc/lisp/xhg-core.el
2009-10-10 08:02:43 +02:00

66 lines
2.1 KiB
EmacsLisp

;;; xhg-core.el --- Common definitions for mercurial support in DVC
;; Copyright (C) 2005-2006 by all contributors
;; Author: Stefan Reichoer, <stefan@xsteve.at>
;; This file 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 2, or (at your option)
;; any later version.
;; This file 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; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This file provides the low-level functions used by the Xtla interfaces
;; to distributed revison control systems.
;;; History:
;;
;;; Code:
(require 'dvc-core)
;; Settings for Mercurial/hg
(defvar xhg-executable
"hg"
"The executable used for the hg commandline client.")
(defvar xhg-log-edit-file-name
"++xhg-log-edit"
"The filename, used to store the log message before commiting.
Usually that file is placed in the tree-root of the working tree.")
;;;###autoload
(defun xhg-tree-root (&optional location no-error interactive)
"Return the tree root for LOCATION, nil if not in a local tree.
Computation is done from withing Emacs, by looking at an .hg/
directory in a parent buffer of LOCATION. This is therefore very
fast.
If NO-ERROR is non-nil, don't raise an error if LOCATION is not a
mercurial managed tree (but return nil)."
(dvc-tree-root-helper ".hg/" (or interactive (interactive-p))
"%S is not in a mercurial-managed tree!"
location no-error))
(defun xhg-read-revision (prompt)
"Read a revision for the actual mercurial working copy."
(read-string prompt (xhg-log-revision-at-point)))
(provide 'xhg-core)
;;; xhg-core.el ends here