Mercurial > hg > mercurial-crew-with-dirclash
comparison 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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1 ;;; mq.el --- Emacs support for Mercurial Queues | |
2 | |
3 ;; Copyright (C) 2006 Bryan O'Sullivan | |
4 | |
5 ;; Author: Bryan O'Sullivan <bos@serpentine.com> | |
6 | |
7 ;; mq.el is free software; you can redistribute it and/or modify it | |
8 ;; under the terms of version 2 of the GNU General Public License as | |
9 ;; published by the Free Software Foundation. | |
10 | |
11 ;; mq.el is distributed in the hope that it will be useful, but | |
12 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 ;; General Public License for more details. | |
15 | |
16 ;; You should have received a copy of the GNU General Public License | |
17 ;; along with mq.el, GNU Emacs, or XEmacs; see the file COPYING (`C-h | |
18 ;; C-l'). If not, write to the Free Software Foundation, Inc., 59 | |
19 ;; Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
20 | |
21 (require 'mercurial) | |
22 | |
23 | |
24 (defcustom mq-mode-hook nil | |
25 "Hook run when a buffer enters mq-mode." | |
26 :type 'sexp | |
27 :group 'mercurial) | |
28 | |
29 (defcustom mq-global-prefix "\C-cq" | |
30 "The global prefix for Mercurial Queues keymap bindings." | |
31 :type 'sexp | |
32 :group 'mercurial) | |
33 | |
34 | |
35 ;;; Internal variables. | |
36 | |
37 (defvar mq-patch-history nil) | |
38 | |
39 | |
40 ;;; Global keymap. | |
41 | |
42 (defvar mq-global-map (make-sparse-keymap)) | |
43 (fset 'mq-global-map mq-global-map) | |
44 (global-set-key mq-global-prefix 'mq-global-map) | |
45 (define-key mq-global-map "." 'mq-push) | |
46 (define-key mq-global-map ">" 'mq-push-all) | |
47 (define-key mq-global-map "," 'mq-pop) | |
48 (define-key mq-global-map "<" 'mq-pop-all) | |
49 (define-key mq-global-map "r" 'mq-refresh) | |
50 (define-key mq-global-map "e" 'mq-refresh-edit) | |
51 (define-key mq-global-map "n" 'mq-next) | |
52 (define-key mq-global-map "p" 'mq-previous) | |
53 (define-key mq-global-map "t" 'mq-top) | |
54 | |
55 | |
56 ;;; Helper functions. | |
57 | |
58 (defun mq-read-patch-name (&optional source prompt) | |
59 "Read a patch name to use with a command. | |
60 May return nil, meaning \"use the default\"." | |
61 (let ((patches (split-string | |
62 (hg-chomp (hg-run0 (or source "qseries"))) "\n"))) | |
63 (when current-prefix-arg | |
64 (completing-read (format "Patch%s: " (or prompt "")) | |
65 (map 'list 'cons patches patches) | |
66 nil | |
67 nil | |
68 nil | |
69 'mq-patch-history)))) | |
70 | |
71 (defun mq-refresh-buffers (root) | |
72 (save-excursion | |
73 (dolist (buf (hg-buffers-visiting-repo root)) | |
74 (when (not (verify-visited-file-modtime buf)) | |
75 (set-buffer buf) | |
76 (let ((ctx (hg-buffer-context))) | |
77 (message "Refreshing %s..." (buffer-name)) | |
78 (revert-buffer t t t) | |
79 (hg-restore-context ctx) | |
80 (message "Refreshing %s...done" (buffer-name)))))) | |
81 (hg-update-mode-lines root)) | |
82 | |
83 (defun mq-last-line () | |
84 (goto-char (point-max)) | |
85 (beginning-of-line) | |
86 (when (looking-at "^$") | |
87 (forward-line -1)) | |
88 (let ((bol (point))) | |
89 (end-of-line) | |
90 (let ((line (buffer-substring bol (point)))) | |
91 (when (> (length line) 0) | |
92 line)))) | |
93 | |
94 (defun mq-push (&optional patch) | |
95 "Push patches until PATCH is reached. | |
96 If PATCH is nil, push at most one patch." | |
97 (interactive (list (mq-read-patch-name "qunapplied" " to push"))) | |
98 (let ((root (hg-root)) | |
99 (prev-buf (current-buffer)) | |
100 last-line ok) | |
101 (unless root | |
102 (error "Cannot push outside a repository!")) | |
103 (hg-sync-buffers root) | |
104 (let ((buf-name (format "MQ: Push %s" (or patch "next patch")))) | |
105 (kill-buffer (get-buffer-create buf-name)) | |
106 (split-window-vertically) | |
107 (other-window 1) | |
108 (switch-to-buffer (get-buffer-create buf-name)) | |
109 (cd root) | |
110 (message "Pushing...") | |
111 (setq ok (= 0 (apply 'call-process (hg-binary) nil t t "qpush" | |
112 (if patch (list patch)))) | |
113 last-line (mq-last-line)) | |
114 (let ((lines (count-lines (point-min) (point-max)))) | |
115 (if (and (equal lines 2) (string-match "Now at:" last-line)) | |
116 (progn | |
117 (kill-buffer (current-buffer)) | |
118 (delete-window)) | |
119 (hg-view-mode prev-buf)))) | |
120 (mq-refresh-buffers root) | |
121 (sit-for 0) | |
122 (when last-line | |
123 (if ok | |
124 (message "Pushing... %s" last-line) | |
125 (error "Pushing... %s" last-line))))) | |
126 | |
127 (defun mq-push-all () | |
128 "Push patches until all are applied." | |
129 (interactive) | |
130 (mq-push "-a")) | |
131 | |
132 (defun mq-pop (&optional patch) | |
133 "Pop patches until PATCH is reached. | |
134 If PATCH is nil, pop at most one patch." | |
135 (interactive (list (mq-read-patch-name "qapplied" " to pop to"))) | |
136 (let ((root (hg-root)) | |
137 last-line ok) | |
138 (unless root | |
139 (error "Cannot pop outside a repository!")) | |
140 (hg-sync-buffers root) | |
141 (set-buffer (generate-new-buffer "qpop")) | |
142 (cd root) | |
143 (message "Popping...") | |
144 (setq ok (= 0 (apply 'call-process (hg-binary) nil t t "qpop" | |
145 (if patch (list patch)))) | |
146 last-line (mq-last-line)) | |
147 (kill-buffer (current-buffer)) | |
148 (mq-refresh-buffers root) | |
149 (sit-for 0) | |
150 (when last-line | |
151 (if ok | |
152 (message "Popping... %s" last-line) | |
153 (error "Popping... %s" last-line))))) | |
154 | |
155 (defun mq-pop-all () | |
156 "Push patches until none are applied." | |
157 (interactive) | |
158 (mq-pop "-a")) | |
159 | |
160 (defun mq-refresh () | |
161 "Refresh the topmost applied patch." | |
162 (interactive) | |
163 (let ((root (hg-root))) | |
164 (unless root | |
165 (error "Cannot refresh outside a repository!")) | |
166 (hg-sync-buffers root) | |
167 (message "Refreshing patch...") | |
168 (let ((ret (hg-run "qrefresh"))) | |
169 (if (equal (car ret) 0) | |
170 (message "Refreshing patch... done.") | |
171 (error "Refreshing patch... %s" (hg-chomp (cdr ret))))))) | |
172 | |
173 (defun mq-patch-info (msg cmd) | |
174 (let ((ret (hg-run cmd))) | |
175 (if (equal (car ret) 0) | |
176 (message "%s %s" msg (hg-chomp (cdr ret))) | |
177 (error "%s" (cdr ret))))) | |
178 | |
179 (defun mq-top () | |
180 "Print the name of the topmost applied patch." | |
181 (interactive) | |
182 (mq-patch-info "Top patch is " "qtop")) | |
183 | |
184 (defun mq-next () | |
185 "Print the name of the next patch to be pushed." | |
186 (interactive) | |
187 (mq-patch-info "Next patch is " "qnext")) | |
188 | |
189 (defun mq-previous () | |
190 "Print the name of the first patch below the topmost applied patch. | |
191 This would become the active patch if popped to." | |
192 (interactive) | |
193 (mq-patch-info "Previous patch is " "qprev")) | |
194 | |
195 (defun mq-refresh-edit () | |
196 "Refresh the topmost applied patch, editing the patch description." | |
197 (interactive) | |
198 (error "Not yet implemented")) | |
199 | |
200 | |
201 (provide 'mq) | |
202 | |
203 | |
204 ;;; Local Variables: | |
205 ;;; prompt-to-byte-compile: nil | |
206 ;;; end: |