author | Emanuele Aina <em@nerd.ocracy.org> |
Tue, 27 Feb 2007 09:05:36 +0100 | |
changeset 4120 | f9dc36b1bdd5 |
parent 3370 | b7fe334ff4fb |
child 4422 | 7b0d0acea6d6 |
permissions | -rw-r--r-- |
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;;; mq.el --- Emacs support for Mercurial Queues |
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;; Copyright (C) 2006 Bryan O'Sullivan |
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;; Author: Bryan O'Sullivan <bos@serpentine.com> |
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;; mq.el is free software; you can redistribute it and/or modify it |
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;; under the terms of version 2 of the GNU General Public License as |
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;; published by the Free Software Foundation. |
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;; mq.el is distributed in the hope that it will be useful, but |
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;; WITHOUT ANY WARRANTY; without even the implied warranty of |
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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;; General Public License for more details. |
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;; You should have received a copy of the GNU General Public License |
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;; along with mq.el, GNU Emacs, or XEmacs; see the file COPYING (`C-h |
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;; C-l'). If not, write to the Free Software Foundation, Inc., 59 |
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;; Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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(require 'mercurial) |
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(defcustom mq-mode-hook nil |
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"Hook run when a buffer enters mq-mode." |
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:type 'sexp |
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:group 'mercurial) |
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(defcustom mq-global-prefix "\C-cq" |
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"The global prefix for Mercurial Queues keymap bindings." |
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:type 'sexp |
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:group 'mercurial) |
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(defcustom mq-edit-mode-hook nil |
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"Hook run after a buffer is populated to edit a patch description." |
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:type 'sexp |
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:group 'mercurial) |
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;;; Internal variables. |
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(defvar mq-mode nil |
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"Is this file managed by MQ?") |
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(make-variable-buffer-local 'mq-mode) |
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(put 'mq-mode 'permanent-local t) |
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(defvar mq-patch-history nil) |
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(defvar mq-top-patch '(nil)) |
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(defvar mq-prev-buffer nil) |
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(make-variable-buffer-local 'mq-prev-buffer) |
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(put 'mq-prev-buffer 'permanent-local t) |
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;;; Global keymap. |
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(defvar mq-global-map (make-sparse-keymap)) |
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(fset 'mq-global-map mq-global-map) |
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(global-set-key mq-global-prefix 'mq-global-map) |
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(define-key mq-global-map "." 'mq-push) |
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(define-key mq-global-map ">" 'mq-push-all) |
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(define-key mq-global-map "," 'mq-pop) |
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(define-key mq-global-map "<" 'mq-pop-all) |
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(define-key mq-global-map "r" 'mq-refresh) |
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(define-key mq-global-map "e" 'mq-refresh-edit) |
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(define-key mq-global-map "n" 'mq-next) |
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(define-key mq-global-map "p" 'mq-previous) |
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(define-key mq-global-map "t" 'mq-top) |
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(add-minor-mode 'mq-mode 'mq-mode) |
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;;; Refresh edit mode keymap. |
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(defvar mq-edit-mode-map (make-sparse-keymap)) |
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(define-key mq-edit-mode-map "\C-c\C-c" 'mq-edit-finish) |
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(define-key mq-edit-mode-map "\C-c\C-k" 'mq-edit-kill) |
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;;; Helper functions. |
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(defun mq-read-patch-name (&optional source prompt) |
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"Read a patch name to use with a command. |
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May return nil, meaning \"use the default\"." |
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(let ((patches (split-string |
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(hg-chomp (hg-run0 (or source "qseries"))) "\n"))) |
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(when current-prefix-arg |
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(completing-read (format "Patch%s: " (or prompt "")) |
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(map 'list 'cons patches patches) |
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nil |
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nil |
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nil |
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'mq-patch-history)))) |
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(defun mq-refresh-buffers (root) |
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(save-excursion |
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(dolist (buf (hg-buffers-visiting-repo root)) |
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(when (not (verify-visited-file-modtime buf)) |
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(set-buffer buf) |
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(let ((ctx (hg-buffer-context))) |
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(message "Refreshing %s..." (buffer-name)) |
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(revert-buffer t t t) |
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(hg-restore-context ctx) |
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(message "Refreshing %s...done" (buffer-name)))))) |
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(hg-update-mode-lines root) |
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107 |
(mq-update-mode-lines root)) |
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108 |
|
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109 |
(defun mq-last-line () |
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110 |
(goto-char (point-max)) |
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111 |
(beginning-of-line) |
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112 |
(when (looking-at "^$") |
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113 |
(forward-line -1)) |
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114 |
(let ((bol (point))) |
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115 |
(end-of-line) |
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116 |
(let ((line (buffer-substring bol (point)))) |
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117 |
(when (> (length line) 0) |
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118 |
line)))) |
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119 |
|
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120 |
(defun mq-push (&optional patch) |
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121 |
"Push patches until PATCH is reached. |
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122 |
If PATCH is nil, push at most one patch." |
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123 |
(interactive (list (mq-read-patch-name "qunapplied" " to push"))) |
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124 |
(let ((root (hg-root)) |
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125 |
(prev-buf (current-buffer)) |
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126 |
last-line ok) |
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127 |
(unless root |
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128 |
(error "Cannot push outside a repository!")) |
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129 |
(hg-sync-buffers root) |
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130 |
(let ((buf-name (format "MQ: Push %s" (or patch "next patch")))) |
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|
131 |
(kill-buffer (get-buffer-create buf-name)) |
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132 |
(split-window-vertically) |
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133 |
(other-window 1) |
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134 |
(switch-to-buffer (get-buffer-create buf-name)) |
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135 |
(cd root) |
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136 |
(message "Pushing...") |
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137 |
(setq ok (= 0 (apply 'call-process (hg-binary) nil t t "qpush" |
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138 |
(if patch (list patch)))) |
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139 |
last-line (mq-last-line)) |
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140 |
(let ((lines (count-lines (point-min) (point-max)))) |
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141 |
(if (and (equal lines 2) (string-match "Now at:" last-line)) |
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142 |
(progn |
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143 |
(kill-buffer (current-buffer)) |
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144 |
(delete-window)) |
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|
145 |
(hg-view-mode prev-buf)))) |
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146 |
(mq-refresh-buffers root) |
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147 |
(sit-for 0) |
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148 |
(when last-line |
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149 |
(if ok |
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150 |
(message "Pushing... %s" last-line) |
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151 |
(error "Pushing... %s" last-line))))) |
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|
152 |
|
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153 |
(defun mq-push-all () |
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154 |
"Push patches until all are applied." |
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155 |
(interactive) |
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156 |
(mq-push "-a")) |
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|
157 |
|
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158 |
(defun mq-pop (&optional patch) |
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159 |
"Pop patches until PATCH is reached. |
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160 |
If PATCH is nil, pop at most one patch." |
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161 |
(interactive (list (mq-read-patch-name "qapplied" " to pop to"))) |
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162 |
(let ((root (hg-root)) |
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163 |
last-line ok) |
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|
164 |
(unless root |
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165 |
(error "Cannot pop outside a repository!")) |
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|
166 |
(hg-sync-buffers root) |
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|
167 |
(set-buffer (generate-new-buffer "qpop")) |
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168 |
(cd root) |
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169 |
(message "Popping...") |
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|
170 |
(setq ok (= 0 (apply 'call-process (hg-binary) nil t t "qpop" |
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|
171 |
(if patch (list patch)))) |
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|
172 |
last-line (mq-last-line)) |
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|
173 |
(kill-buffer (current-buffer)) |
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|
174 |
(mq-refresh-buffers root) |
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|
175 |
(sit-for 0) |
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|
176 |
(when last-line |
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177 |
(if ok |
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|
178 |
(message "Popping... %s" last-line) |
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|
179 |
(error "Popping... %s" last-line))))) |
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|
180 |
|
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|
181 |
(defun mq-pop-all () |
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182 |
"Push patches until none are applied." |
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|
183 |
(interactive) |
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|
184 |
(mq-pop "-a")) |
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|
185 |
|
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|
186 |
(defun mq-refresh-internal (root &rest args) |
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187 |
(hg-sync-buffers root) |
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|
188 |
(let ((patch (mq-patch-info "qtop"))) |
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189 |
(message "Refreshing %s..." patch) |
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|
190 |
(let ((ret (apply 'hg-run "qrefresh" args))) |
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|
191 |
(if (equal (car ret) 0) |
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|
192 |
(message "Refreshing %s... done." patch) |
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|
193 |
(error "Refreshing %s... %s" patch (hg-chomp (cdr ret))))))) |
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|
194 |
|
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|
195 |
(defun mq-refresh () |
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196 |
"Refresh the topmost applied patch." |
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|
197 |
(interactive) |
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|
198 |
(let ((root (hg-root))) |
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|
199 |
(unless root |
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200 |
(error "Cannot refresh outside of a repository!")) |
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|
201 |
(mq-refresh-internal root))) |
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|
202 |
|
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|
203 |
(defun mq-patch-info (cmd &optional msg) |
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204 |
(let* ((ret (hg-run cmd)) |
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|
205 |
(info (hg-chomp (cdr ret)))) |
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|
206 |
(if (equal (car ret) 0) |
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|
207 |
(if msg |
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|
208 |
(message "%s patch: %s" msg info) |
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|
209 |
info) |
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|
210 |
(error "%s" info)))) |
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|
211 |
|
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|
212 |
(defun mq-top () |
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213 |
"Print the name of the topmost applied patch." |
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214 |
(interactive) |
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215 |
(mq-patch-info "qtop" "Top")) |
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(defun mq-next () |
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"Print the name of the next patch to be pushed." |
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(interactive) |
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(mq-patch-info "qnext" "Next")) |
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(defun mq-previous () |
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"Print the name of the first patch below the topmost applied patch. |
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This would become the active patch if popped to." |
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(interactive) |
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(mq-patch-info "qprev" "Previous")) |
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(defun mq-edit-finish () |
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"Finish editing the description of this patch, and refresh the patch." |
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(interactive) |
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(unless (equal (mq-patch-info "qtop") mq-top) |
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(error "Topmost patch has changed!")) |
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(hg-sync-buffers hg-root) |
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(mq-refresh-internal hg-root "-m" (buffer-substring (point-min) (point-max))) |
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(let ((buf mq-prev-buffer)) |
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(kill-buffer nil) |
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(switch-to-buffer buf))) |
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|
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(defun mq-edit-kill () |
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"Kill the edit currently being prepared." |
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(interactive) |
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(when (or (not (buffer-modified-p)) (y-or-n-p "Really kill this edit? ")) |
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(let ((buf mq-prev-buffer)) |
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(kill-buffer nil) |
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(switch-to-buffer buf)))) |
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|
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(defun mq-get-top (root) |
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(let ((entry (assoc root mq-top-patch))) |
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(if entry |
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(cdr entry)))) |
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251 |
|
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(defun mq-set-top (root patch) |
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(let ((entry (assoc root mq-top-patch))) |
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(if entry |
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(if patch |
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(setcdr entry patch) |
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(setq mq-top-patch (delq entry mq-top-patch))) |
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(setq mq-top-patch (cons (cons root patch) mq-top-patch))))) |
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259 |
|
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(defun mq-update-mode-lines (root) |
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(let ((cwd default-directory)) |
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(cd root) |
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(condition-case nil |
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(mq-set-top root (mq-patch-info "qtop")) |
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(error (mq-set-top root nil))) |
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(cd cwd)) |
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(let ((patch (mq-get-top root))) |
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268 |
(save-excursion |
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(dolist (buf (hg-buffers-visiting-repo root)) |
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(set-buffer buf) |
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(if mq-mode |
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(setq mq-mode (or (and patch (concat " MQ:" patch)) " MQ"))))))) |
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|
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(defun mq-mode (&optional arg) |
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"Minor mode for Mercurial repositories with an MQ patch queue" |
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(interactive "i") |
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(cond ((hg-root) |
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(setq mq-mode (if (null arg) (not mq-mode) |
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arg)) |
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(mq-update-mode-lines (hg-root)))) |
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(run-hooks 'mq-mode-hook)) |
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282 |
|
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(defun mq-edit-mode () |
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"Mode for editing the description of a patch. |
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285 |
|
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286 |
Key bindings |
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287 |
------------ |
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\\[mq-edit-finish] use this description |
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\\[mq-edit-kill] abandon this description" |
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290 |
(interactive) |
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(use-local-map mq-edit-mode-map) |
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(set-syntax-table text-mode-syntax-table) |
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293 |
(setq local-abbrev-table text-mode-abbrev-table |
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major-mode 'mq-edit-mode |
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mode-name "MQ-Edit") |
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296 |
(set-buffer-modified-p nil) |
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(setq buffer-undo-list nil) |
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(run-hooks 'text-mode-hook 'mq-edit-mode-hook)) |
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299 |
|
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(defun mq-refresh-edit () |
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"Refresh the topmost applied patch, editing the patch description." |
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(interactive) |
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(while mq-prev-buffer |
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304 |
(set-buffer mq-prev-buffer)) |
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305 |
(let ((root (hg-root)) |
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(prev-buffer (current-buffer)) |
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(patch (mq-patch-info "qtop"))) |
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(hg-sync-buffers root) |
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(let ((buf-name (format "*MQ: Edit description of %s*" patch))) |
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(switch-to-buffer (get-buffer-create buf-name)) |
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311 |
(when (= (point-min) (point-max)) |
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(set (make-local-variable 'hg-root) root) |
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(set (make-local-variable 'mq-top) patch) |
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(setq mq-prev-buffer prev-buffer) |
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315 |
(insert (hg-run0 "qheader")) |
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316 |
(goto-char (point-min))) |
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317 |
(mq-edit-mode) |
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318 |
(cd root))) |
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(message "Type `C-c C-c' to finish editing and refresh the patch.")) |
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320 |
|
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321 |
|
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(provide 'mq) |
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323 |
|
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324 |
|
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325 |
;;; Local Variables: |
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326 |
;;; prompt-to-byte-compile: nil |
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327 |
;;; end: |