Mercurial > hg > mercurial-crew-with-dirclash
view contrib/mq.el @ 2993:425413d9ef59
Emacs: add mq.el, early support for Mercurial Queues.
author | Bryan O'Sullivan <bos@serpentine.com> |
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date | Tue, 22 Aug 2006 16:04:58 -0700 |
parents | |
children | e2bad806ccc3 |
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;;; mq.el --- Emacs support for Mercurial Queues ;; Copyright (C) 2006 Bryan O'Sullivan ;; Author: Bryan O'Sullivan <bos@serpentine.com> ;; mq.el is free software; you can redistribute it and/or modify it ;; under the terms of version 2 of the GNU General Public License as ;; published by the Free Software Foundation. ;; mq.el 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 mq.el, GNU Emacs, or XEmacs; see the file COPYING (`C-h ;; C-l'). If not, write to the Free Software Foundation, Inc., 59 ;; Temple Place - Suite 330, Boston, MA 02111-1307, USA. (require 'mercurial) (defcustom mq-mode-hook nil "Hook run when a buffer enters mq-mode." :type 'sexp :group 'mercurial) (defcustom mq-global-prefix "\C-cq" "The global prefix for Mercurial Queues keymap bindings." :type 'sexp :group 'mercurial) ;;; Internal variables. (defvar mq-patch-history nil) ;;; Global keymap. (defvar mq-global-map (make-sparse-keymap)) (fset 'mq-global-map mq-global-map) (global-set-key mq-global-prefix 'mq-global-map) (define-key mq-global-map "." 'mq-push) (define-key mq-global-map ">" 'mq-push-all) (define-key mq-global-map "," 'mq-pop) (define-key mq-global-map "<" 'mq-pop-all) (define-key mq-global-map "r" 'mq-refresh) (define-key mq-global-map "e" 'mq-refresh-edit) (define-key mq-global-map "n" 'mq-next) (define-key mq-global-map "p" 'mq-previous) (define-key mq-global-map "t" 'mq-top) ;;; Helper functions. (defun mq-read-patch-name (&optional source prompt) "Read a patch name to use with a command. May return nil, meaning \"use the default\"." (let ((patches (split-string (hg-chomp (hg-run0 (or source "qseries"))) "\n"))) (when current-prefix-arg (completing-read (format "Patch%s: " (or prompt "")) (map 'list 'cons patches patches) nil nil nil 'mq-patch-history)))) (defun mq-refresh-buffers (root) (save-excursion (dolist (buf (hg-buffers-visiting-repo root)) (when (not (verify-visited-file-modtime buf)) (set-buffer buf) (let ((ctx (hg-buffer-context))) (message "Refreshing %s..." (buffer-name)) (revert-buffer t t t) (hg-restore-context ctx) (message "Refreshing %s...done" (buffer-name)))))) (hg-update-mode-lines root)) (defun mq-last-line () (goto-char (point-max)) (beginning-of-line) (when (looking-at "^$") (forward-line -1)) (let ((bol (point))) (end-of-line) (let ((line (buffer-substring bol (point)))) (when (> (length line) 0) line)))) (defun mq-push (&optional patch) "Push patches until PATCH is reached. If PATCH is nil, push at most one patch." (interactive (list (mq-read-patch-name "qunapplied" " to push"))) (let ((root (hg-root)) (prev-buf (current-buffer)) last-line ok) (unless root (error "Cannot push outside a repository!")) (hg-sync-buffers root) (let ((buf-name (format "MQ: Push %s" (or patch "next patch")))) (kill-buffer (get-buffer-create buf-name)) (split-window-vertically) (other-window 1) (switch-to-buffer (get-buffer-create buf-name)) (cd root) (message "Pushing...") (setq ok (= 0 (apply 'call-process (hg-binary) nil t t "qpush" (if patch (list patch)))) last-line (mq-last-line)) (let ((lines (count-lines (point-min) (point-max)))) (if (and (equal lines 2) (string-match "Now at:" last-line)) (progn (kill-buffer (current-buffer)) (delete-window)) (hg-view-mode prev-buf)))) (mq-refresh-buffers root) (sit-for 0) (when last-line (if ok (message "Pushing... %s" last-line) (error "Pushing... %s" last-line))))) (defun mq-push-all () "Push patches until all are applied." (interactive) (mq-push "-a")) (defun mq-pop (&optional patch) "Pop patches until PATCH is reached. If PATCH is nil, pop at most one patch." (interactive (list (mq-read-patch-name "qapplied" " to pop to"))) (let ((root (hg-root)) last-line ok) (unless root (error "Cannot pop outside a repository!")) (hg-sync-buffers root) (set-buffer (generate-new-buffer "qpop")) (cd root) (message "Popping...") (setq ok (= 0 (apply 'call-process (hg-binary) nil t t "qpop" (if patch (list patch)))) last-line (mq-last-line)) (kill-buffer (current-buffer)) (mq-refresh-buffers root) (sit-for 0) (when last-line (if ok (message "Popping... %s" last-line) (error "Popping... %s" last-line))))) (defun mq-pop-all () "Push patches until none are applied." (interactive) (mq-pop "-a")) (defun mq-refresh () "Refresh the topmost applied patch." (interactive) (let ((root (hg-root))) (unless root (error "Cannot refresh outside a repository!")) (hg-sync-buffers root) (message "Refreshing patch...") (let ((ret (hg-run "qrefresh"))) (if (equal (car ret) 0) (message "Refreshing patch... done.") (error "Refreshing patch... %s" (hg-chomp (cdr ret))))))) (defun mq-patch-info (msg cmd) (let ((ret (hg-run cmd))) (if (equal (car ret) 0) (message "%s %s" msg (hg-chomp (cdr ret))) (error "%s" (cdr ret))))) (defun mq-top () "Print the name of the topmost applied patch." (interactive) (mq-patch-info "Top patch is " "qtop")) (defun mq-next () "Print the name of the next patch to be pushed." (interactive) (mq-patch-info "Next patch is " "qnext")) (defun mq-previous () "Print the name of the first patch below the topmost applied patch. This would become the active patch if popped to." (interactive) (mq-patch-info "Previous patch is " "qprev")) (defun mq-refresh-edit () "Refresh the topmost applied patch, editing the patch description." (interactive) (error "Not yet implemented")) (provide 'mq) ;;; Local Variables: ;;; prompt-to-byte-compile: nil ;;; end: