HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| fa2eb9ac MK |
1 | ;;; ediff-meta.el --- support for multi-file/multi-buffer processing in Ediff |
| 2 | ;;; Copyright (C) 1995 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | ;; Author: Michael Kifer <kifer@cs.sunysb.edu> | |
| 5 | ||
| 6 | ;; This file is part of GNU Emacs. | |
| 7 | ||
| 8 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
| 9 | ;; it under the terms of the GNU General Public License as published by | |
| 10 | ;; the Free Software Foundation; either version 2, or (at your option) | |
| 11 | ;; any later version. | |
| 12 | ||
| 13 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 14 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | ;; GNU General Public License for more details. | |
| 17 | ||
| 18 | ;; You should have received a copy of the GNU General Public License | |
| 19 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
| 20 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 21 | ||
| 22 | ;;; Notes: | |
| 23 | ;; | |
| 24 | ;; Users are strongly encourage to add functionality to this file. | |
| 25 | ;; In particular, epatch needs to be enhanced to work with multi-file | |
| 26 | ;; patches. The present file contains all the infrastructure needed for that. | |
| 27 | ;; | |
| 28 | ;; Generally, to to implement a new multisession capability within Ediff, | |
| 29 | ;; you need to tell it | |
| 30 | ;; | |
| 31 | ;; 1. How to display the session group buffer. | |
| 32 | ;; This function must indicate which Ediff sessions are active (+) and | |
| 33 | ;; which are finished (-). | |
| 34 | ;; See ediff-redraw-directory-group-buffer for an example. | |
| 35 | ;; In all likelihood, ediff-redraw-directory-group-buffer can be used | |
| 36 | ;; directly or after a small modification. | |
| 37 | ;; 2. What action to take when the user clicks button 2 or types v,e, or | |
| 38 | ;; RET. See ediff-dir-action. | |
| 39 | ;; 3. Provide a list of pairs or triples of file names (or buffers, | |
| 40 | ;; depending on the particular Ediff operation you want to invoke) | |
| 41 | ;; in the following format: | |
| 42 | ;; ((obj1 obj2 [optional obj3]) (...) ...) | |
| 43 | ;; Actually, the format of this list is pretty much up to the | |
| 44 | ;; developer. The only thing is that it must be a list of lists. | |
| 45 | ;; Also, keep in mind that the function ediff-prepare-meta-buffer | |
| 46 | ;; (which see) prepends nil in fron of each list (i.e., the above list | |
| 47 | ;; will become ((nil obj1 obj2 ...) (nil ...) ...). | |
| 48 | ;; Ediff expects that your function (in 2 above) will arrange to | |
| 49 | ;; replace this prepended nil (via setcar) with the actual ediff | |
| 50 | ;; control buffer associated with an appropriate Ediff session. | |
| 51 | ;; This is arranged through internal startup hooks that can be passed | |
| 52 | ;; to any of Ediff major entries (such as ediff-files, epatch, etc.). | |
| 53 | ;; See how this is done in ediff-dir-action. | |
| 54 | ;; 4. Write a function that makes a call to ediff-prepare-meta-buffer | |
| 55 | ;; passing all this info. | |
| 56 | ;; You may be able to use ediff-directories-internal as a template. | |
| 57 | ;; 5. If you intend to add several related pieces of functionality, | |
| 58 | ;; you may want to keep the function in 4 as an internal version | |
| 59 | ;; and then write several top-level interactive functions that call it | |
| 60 | ;; with different parameters. | |
| 61 | ;; See how ediff-directories, ediff-merge-directories, and | |
| 62 | ;; ediff-merge-directories-with-ancestor all use | |
| 63 | ;; ediff-directories-internal. | |
| 64 | ;; | |
| 65 | ;; In case of multifile patching, the easiest thing is to first apply the patch | |
| 66 | ;; and then find out which files were patched (using the algorithm utilized by | |
| 67 | ;; Unix patch and by parsing the patch file). The procedure ediff-patch-file | |
| 68 | ;; works for single-file patches only. However, it can deal with remote and | |
| 69 | ;; compressed files. Check out ediff-patch-file for details. | |
| 70 | ;; | |
| 71 | ;; Another useful addition here could be session groups selected by patterns | |
| 72 | ;; (which are different in each directory). For instance, one may want to | |
| 73 | ;; compare files of the form abc{something}.c to files old{something}.d | |
| 74 | ;; which may be in the same or different directories. Or, one may want to | |
| 75 | ;; compare all files of the form {something} to files of the form {something}~. | |
| 76 | ;; | |
| 009650b3 MK |
77 | ;; Implementing this requires writing an collating function, which should pair |
| 78 | ;; up appropriate files. It will also require a generalization of the functions | |
| fa2eb9ac MK |
79 | ;; that do the layout of the meta- and differences buffers and of |
| 80 | ;; ediff-dir-action. | |
| 81 | ||
| 82 | (require 'ediff-init) | |
| 83 | ||
| 84 | ;; meta-buffer | |
| 85 | (ediff-defvar-local ediff-meta-buffer nil "") | |
| 86 | (ediff-defvar-local ediff-parent-meta-buffer nil "") | |
| 87 | ;; the registry buffer | |
| 88 | (defvar ediff-registry-buffer nil) | |
| 89 | ||
| 90 | (defconst ediff-meta-buffer-message "This is an Ediff Session Group Panel: %s | |
| 91 | ||
| 92 | Useful commands: | |
| 93 | button2, `v', RET over a session line: start that Ediff session | |
| 94 | `M' in any session invoked from here: bring back this buffer | |
| 95 | `R':\tdisplay the registry of active Ediff sessions | |
| 96 | `h':\tmark session for hiding; with prefix arg--unmark | |
| 97 | `x':\thide marked sessions; with prefix arg--unhide hidden sessions | |
| 98 | `m':\tmark session for non-hiding operation; with prefix arg--unmark | |
| 99 | SPC:\tnext session | |
| 100 | DEL:\tprevious session | |
| 101 | `E':\tbrowse Ediff on-line manual | |
| 102 | `q':\tquit this session group | |
| 103 | ") | |
| 104 | ||
| 105 | (ediff-defvar-local ediff-meta-buffer-map nil | |
| 106 | "The keymap for the meta buffer.") | |
| 107 | (defvar ediff-dir-diffs-buffer-map (make-sparse-keymap) | |
| 108 | "The keymap to be installed in the buffer showing differences between | |
| 109 | directories.") | |
| 110 | ||
| 111 | ;; Variable specifying the action to take when the use invokes ediff in the | |
| 112 | ;; meta buffer. This is usually ediff-registry-action or ediff-dir-action | |
| 113 | (ediff-defvar-local ediff-meta-action-function nil "") | |
| 114 | ;; Tells ediff-update-meta-buffer how to redraw it | |
| 115 | (ediff-defvar-local ediff-meta-redraw-function nil "") | |
| 116 | ;; Tells ediff-dir-action and similar procedures how to invoke Ediff for the | |
| 117 | ;; sessions in a given session group | |
| 118 | (ediff-defvar-local ediff-session-action-function nil "") | |
| 119 | ||
| 120 | (ediff-defvar-local ediff-metajob-name nil "") | |
| 121 | ||
| 122 | ;; buffer used to collect custom diffs from individual sessions in the group | |
| 123 | (ediff-defvar-local ediff-meta-diff-buffer nil "") | |
| 124 | ||
| 125 | ;; history var to use for filtering groups | |
| 126 | (defvar ediff-filtering-regexp-history nil "") | |
| 127 | ||
| 128 | ;; This has the form ((ctl-buf file1 file2) (stl-buf file1 file2) ...) | |
| 129 | ;; If ctl-buf is nil, the file-pare wasn't processed yet. If it is | |
| 130 | ;; killed-buffer object, the file pair has been processed. If it is a live | |
| 131 | ;; buffer, this means ediff is still working on the pair | |
| 132 | (ediff-defvar-local ediff-meta-list nil "") | |
| 133 | ||
| 134 | ||
| 135 | ;; the difference list between directories in a directory session group | |
| 136 | (ediff-defvar-local ediff-dir-difference-list nil "") | |
| 137 | (ediff-defvar-local ediff-dir-diffs-buffer nil "") | |
| 138 | ||
| 139 | ;; The registry of Ediff sessions. A list of control buffers. | |
| 140 | (defvar ediff-session-registry nil) | |
| 141 | ||
| 142 | (defvar ediff-registry-setup-hook nil | |
| 143 | "*Hooks run just after the registry control panel is set up.") | |
| 144 | (defvar ediff-session-group-setup-hook nil | |
| 145 | "*Hooks run just after a meta-buffer controlling a session group, such as | |
| 146 | ediff-directories, is run.") | |
| 147 | (defvar ediff-show-registry-hook nil | |
| 148 | "*Hooks run just after the registry buffer is shown.") | |
| 149 | (defvar ediff-show-session-group-hook nil | |
| 150 | "*Hooks run just after a session group buffer is shown.") | |
| 151 | ||
| 152 | ;;; API | |
| 153 | ||
| 154 | (defun ediff-get-group-buffer (meta-list) | |
| 155 | (nth 0 (car meta-list))) | |
| 156 | (defun ediff-get-group-regexp (meta-list) | |
| 157 | (nth 1 (car meta-list))) | |
| 158 | (defun ediff-get-group-objA (meta-list) | |
| 159 | (nth 2 (car meta-list))) | |
| 160 | (defun ediff-get-group-objB (meta-list) | |
| 161 | (nth 3 (car meta-list))) | |
| 162 | (defun ediff-get-group-objC (meta-list) | |
| 163 | (nth 4 (car meta-list))) | |
| 164 | (defun ediff-get-session-buffer (elt) | |
| 165 | (nth 0 elt)) | |
| 166 | (defun ediff-get-session-status (elt) | |
| 167 | (nth 1 elt)) | |
| 168 | (defun ediff-get-session-objA (elt) | |
| 169 | (nth 2 elt)) | |
| 170 | (defun ediff-get-session-objB (elt) | |
| 171 | (nth 3 elt)) | |
| 172 | (defun ediff-get-session-objC (elt) | |
| 173 | (nth 4 elt)) | |
| 174 | (defun ediff-set-session-status (session-info new-status) | |
| 175 | (setcar (cdr session-info) new-status)) | |
| 176 | ||
| 177 | ;; set up the keymap in the meta buffer | |
| 178 | (defun ediff-setup-meta-map() | |
| 179 | (setq ediff-meta-buffer-map (make-sparse-keymap)) | |
| 180 | (suppress-keymap ediff-meta-buffer-map) | |
| 181 | (define-key ediff-meta-buffer-map "q" 'ediff-quit-meta-buffer) | |
| 182 | (define-key ediff-meta-buffer-map "R" 'ediff-show-registry) | |
| 183 | (define-key ediff-meta-buffer-map "E" 'ediff-documentation) | |
| 184 | (define-key ediff-meta-buffer-map "v" ediff-meta-action-function) | |
| 185 | (define-key ediff-meta-buffer-map "\C-m" ediff-meta-action-function) | |
| 186 | (define-key ediff-meta-buffer-map " " 'ediff-next-meta-item) | |
| 187 | (define-key ediff-meta-buffer-map "\C-?" 'ediff-previous-meta-item) | |
| 188 | (define-key ediff-meta-buffer-map [delete] 'ediff-previous-meta-item) | |
| 189 | (define-key ediff-meta-buffer-map [backspace] 'ediff-previous-meta-item) | |
| 190 | (if ediff-no-emacs-help-in-control-buffer | |
| 191 | (define-key ediff-meta-buffer-map "\C-h" 'ediff-previous-meta-item)) | |
| 192 | (if ediff-emacs-p | |
| 193 | (define-key ediff-meta-buffer-map [mouse-2] ediff-meta-action-function) | |
| 194 | (define-key ediff-meta-buffer-map [button2] ediff-meta-action-function)) | |
| 195 | ||
| 196 | (use-local-map ediff-meta-buffer-map)) | |
| 197 | ||
| 198 | (defun ediff-meta-mode () | |
| 199 | "This mode controls all operations on Ediff session groups. | |
| 200 | It is entered through one of the following commands: | |
| 201 | `ediff-directories' | |
| 202 | `edirs' | |
| 203 | `ediff-directories3' | |
| 204 | `edirs3' | |
| 205 | `ediff-merge-directories' | |
| 206 | `edirs-merge' | |
| 207 | `ediff-merge-directories-with-ancestor' | |
| 208 | `edirs-merge-with-ancestor' | |
| 209 | `ediff-directory-revisions' | |
| 210 | `edir-revisions' | |
| 211 | `ediff-merge-directory-revisions' | |
| 212 | `edir-merge-revisions' | |
| 213 | `ediff-merge-directory-revisions-with-ancestor' | |
| 214 | `edir-merge-revisions-with-ancestor' | |
| 215 | ||
| 216 | Commands: | |
| 217 | \\{ediff-meta-buffer-map}" | |
| 218 | (kill-all-local-variables) | |
| 219 | (setq major-mode 'ediff-meta-mode) | |
| 220 | (setq mode-name "MetaEdiff")) | |
| 221 | ||
| 222 | ||
| 223 | ;; the keymap for the buffer showing directory differences | |
| 224 | (suppress-keymap ediff-dir-diffs-buffer-map) | |
| 225 | (define-key ediff-dir-diffs-buffer-map "q" 'ediff-bury-dir-diffs-buffer) | |
| 226 | (define-key ediff-dir-diffs-buffer-map " " 'next-line) | |
| 227 | (define-key ediff-dir-diffs-buffer-map "\C-?" 'previous-line) | |
| 228 | (define-key ediff-dir-diffs-buffer-map [delete] 'previous-line) | |
| 229 | (define-key ediff-dir-diffs-buffer-map [backspace] 'previous-line) | |
| 230 | ||
| 231 | (defun ediff-next-meta-item (count) | |
| 232 | "Move to the next item in Ediff registry or session group buffer. | |
| 233 | Moves in circular fashion. With numeric prefix arg, skip this many items." | |
| 234 | (interactive "p") | |
| 235 | (or count (setq count 1)) | |
| 236 | (while (< 0 count) | |
| 237 | (setq count (1- count)) | |
| 238 | (ediff-next-meta-item1))) | |
| 239 | ||
| 240 | ;; Move to the next meta item | |
| 241 | (defun ediff-next-meta-item1 () | |
| 242 | (let (pos) | |
| 243 | (setq pos (ediff-next-meta-overlay-start (point))) | |
| 244 | ;;; ;; skip deleted | |
| 245 | ;;; (while (memq (ediff-get-session-status | |
| 246 | ;;; (ediff-get-meta-info (current-buffer) pos 'noerror)) | |
| 247 | ;;; '(?H ?I)) | |
| 248 | ;;; (setq pos (ediff-next-meta-overlay-start pos))) | |
| 249 | ||
| 250 | (if pos (goto-char pos)) | |
| 251 | (if (eq ediff-metajob-name 'ediff-registry) | |
| 252 | (if (search-forward "*Ediff" nil t) | |
| 253 | (skip-chars-backward "a-zA-Z*")) | |
| 254 | (if (> (skip-chars-forward "-+?H* \t0-9") 0) | |
| 255 | (backward-char 1))))) | |
| 256 | ||
| 257 | ||
| 258 | (defun ediff-previous-meta-item (count) | |
| 259 | "Move to the previous item in Ediff registry or session group buffer. | |
| 260 | Moves in circular fashion. With numeric prefix arg, skip this many items." | |
| 261 | (interactive "p") | |
| 262 | (or count (setq count 1)) | |
| 263 | (while (< 0 count) | |
| 264 | (setq count (1- count)) | |
| 265 | (ediff-previous-meta-item1))) | |
| 266 | ||
| 267 | (defun ediff-previous-meta-item1 () | |
| 268 | (let (pos) | |
| 269 | (setq pos (ediff-previous-meta-overlay-start (point))) | |
| 270 | ;;; ;; skip deleted | |
| 271 | ;;; (while (ediff-get-session-status | |
| 272 | ;;; (ediff-get-meta-info (current-buffer) pos 'noerror)) | |
| 273 | ;;; (setq pos (ediff-previous-meta-overlay-start pos))) | |
| 274 | ||
| 275 | (if pos (goto-char pos)) | |
| 276 | (if (eq ediff-metajob-name 'ediff-registry) | |
| 277 | (if (search-forward "*Ediff" nil t) | |
| 278 | (skip-chars-backward "a-zA-Z*")) | |
| 279 | (if (> (skip-chars-forward "-+?H* \t0-9") 0) | |
| 280 | (backward-char 1))))) | |
| 281 | ||
| 282 | ||
| 283 | ||
| 284 | ;; DIR1, DIR2, DIR3 are directories. | |
| 285 | ;; REGEXP is a regexp used to filter | |
| 286 | ;; files in the directories. | |
| 287 | ;; If a file is a directory in dir1 but not dir2 (or vice versa), it is not | |
| 288 | ;; included in the intersection. However, a regular file that is a dir in dir3 | |
| 289 | ;; is included, since dir3 files are supposed to be ancestors for merging. | |
| 290 | ;; Returns a list of the form: | |
| 291 | ;; ((dir1 dir2 dir3) (f1 f2 f3) (f1 f2 f3) ...) | |
| 292 | ;; dir3, f3 can be nil if intersecting only 2 directories. | |
| 293 | ;; If COMPARISON-FUNC is given, use it. Otherwise, use string= | |
| 294 | ;; DIFF-VAR is contains the name of the variable in which to return the | |
| 295 | ;; difference list. The diff list is of the form: | |
| 296 | ;; ((dir1 dir2 dir3) (file . num) (file . num)...) | |
| 297 | ;; where num encodes the set of dirs where the file is found: | |
| 298 | ;; 2 - only dir1; 3 - only dir2; 5 - only dir3; 6 - dir1&2; 10 - dir1&3; etc. | |
| 299 | (defun ediff-intersect-directories (jobname diff-var regexp dir1 dir2 | |
| 300 | &optional dir3 comparison-func) | |
| 301 | (require 'cl) | |
| 302 | (setq comparison-func (or comparison-func 'string=)) | |
| 303 | (let (lis1 lis2 lis3 common auxdir1 auxdir2 auxdir3 difflist) | |
| 304 | ||
| 305 | (setq auxdir1 (file-name-as-directory dir1) | |
| 306 | lis1 (directory-files auxdir1 nil regexp) | |
| 307 | auxdir2 (file-name-as-directory dir2) | |
| 308 | lis2 (directory-files auxdir2 nil regexp)) | |
| 309 | ||
| 310 | (if (stringp dir3) | |
| 311 | (setq auxdir3 (file-name-as-directory dir3) | |
| 312 | lis3 (directory-files auxdir3 nil regexp))) | |
| 313 | ||
| 314 | (setq lis1 (delete "." lis1) | |
| 315 | lis1 (delete ".." lis1)) | |
| 316 | ||
| 317 | (setq common (intersection lis1 lis2 :test comparison-func)) | |
| 318 | ;; get rid of files that are directories in dir1 but not dir2 | |
| 319 | (mapcar (function (lambda (elt) | |
| 320 | (if (Xor (file-directory-p (concat auxdir1 elt)) | |
| 321 | (file-directory-p (concat auxdir2 elt))) | |
| 322 | (setq common (delq elt common))))) | |
| 323 | common) | |
| 324 | ;; intersect with the third dir | |
| 325 | (if lis3 (setq common (intersection common lis3 :test comparison-func))) | |
| 326 | (if (ediff-comparison-metajob3 jobname) | |
| 327 | (mapcar (function (lambda (elt) | |
| 328 | (if (Xor (file-directory-p (concat auxdir1 elt)) | |
| 329 | (file-directory-p (concat auxdir3 elt))) | |
| 330 | (setq common (delq elt common))))) | |
| 331 | common)) | |
| 332 | ||
| 333 | ;; trying to avoid side effects of sorting | |
| 334 | (setq common (sort (copy-list common) 'string-lessp)) | |
| 335 | ||
| 336 | ;; compute difference list | |
| 337 | (setq difflist (set-difference | |
| 338 | (union (union lis1 lis2 :test comparison-func) | |
| 339 | lis3 | |
| 340 | :test comparison-func) | |
| 341 | common | |
| 342 | :test comparison-func) | |
| 343 | difflist (delete "." difflist) | |
| 344 | ;; copy-list needed because sort sorts it by side effects | |
| 345 | difflist (sort (copy-list (delete ".." difflist)) 'string-lessp)) | |
| 346 | ||
| 347 | (setq difflist (mapcar (function (lambda (elt) (cons elt 1))) difflist)) | |
| 348 | ||
| 349 | ;; check for files belonging to lis1/2/3 | |
| 350 | (mapcar (function (lambda (elt) | |
| 351 | (if (member (car elt) lis1) | |
| 352 | (setcdr elt (* (cdr elt) 2))) | |
| 353 | (if (member (car elt) lis2) | |
| 354 | (setcdr elt (* (cdr elt) 3))) | |
| 355 | (if (member (car elt) lis3) | |
| 356 | (setcdr elt (* (cdr elt) 5))) | |
| 357 | )) | |
| 358 | difflist) | |
| 359 | (setq difflist (cons (list regexp auxdir1 auxdir2 auxdir3) difflist)) | |
| 360 | ||
| 361 | (set diff-var difflist) | |
| 362 | ||
| 363 | ;; return result | |
| 364 | (cons (list regexp auxdir1 auxdir2 auxdir3) | |
| 365 | (mapcar (function (lambda (elt) | |
| 366 | (list (concat auxdir1 elt) | |
| 367 | (concat auxdir2 elt) | |
| 368 | (if lis3 | |
| 369 | (concat auxdir3 elt))))) | |
| 370 | common)) | |
| 371 | )) | |
| 372 | ||
| 373 | ;; find directory files that are under revision. | |
| 374 | ;; display subdirectories, too, since we may visit them recursively. | |
| 375 | (defun ediff-get-directory-files-under-revision (jobname regexp dir1) | |
| 376 | (require 'cl) | |
| 377 | (let (lis1 elt common auxdir1) | |
| 378 | (setq auxdir1 (file-name-as-directory dir1) | |
| 379 | lis1 (directory-files auxdir1 nil regexp)) | |
| 380 | ||
| 381 | (while lis1 | |
| 382 | (setq elt (car lis1) | |
| 383 | lis1 (cdr lis1)) | |
| 384 | ;; take files under revision control | |
| 385 | (cond ((file-directory-p (concat auxdir1 elt)) | |
| 386 | (setq common (cons elt common))) | |
| 387 | ((file-exists-p (concat auxdir1 elt ",v")) | |
| 388 | (setq common (cons elt common)))) | |
| 389 | ) ; while | |
| 390 | ||
| 391 | (setq common (delete "." common) | |
| 392 | common (delete ".." common)) | |
| 393 | ||
| 394 | ;; trying to avoid side effects of sorting | |
| 395 | (setq common (sort (copy-list common) 'string-lessp)) | |
| 396 | ||
| 397 | ;; return result | |
| 398 | (cons (list regexp auxdir1 nil nil) | |
| 399 | (mapcar (function (lambda (elt) | |
| 400 | (list (concat auxdir1 elt) | |
| 401 | nil nil))) | |
| 402 | common)) | |
| 403 | )) | |
| 404 | ||
| 405 | ||
| 406 | ;; If file groups selected by patterns will ever be implemented, this | |
| 407 | ;; comparison function might become useful. | |
| 408 | ;;;; uses external variables PAT1 PAT2 to compare str1/2 | |
| 409 | ;;;; patterns must be of the form ???*???? where ??? are strings of chars | |
| 410 | ;;;; containing no *. | |
| 411 | ;;(defun ediff-pattern= (str1 str2) | |
| 412 | ;; (let (pos11 pos12 pos21 pos22 len1 len2) | |
| 413 | ;; (setq pos11 0 | |
| 414 | ;; len (length epat1) | |
| 415 | ;; pos12 len) | |
| 416 | ;; (while (and (< pos11 len) (not (= (aref epat1 pos11) ?*))) | |
| 417 | ;; (setq pos11 (1+ pos11))) | |
| 418 | ;; (while (and (> pos12 0) (not (= (aref epat1 (1- pos12)) ?*))) | |
| 419 | ;; (setq pos12 (1- pos12))) | |
| 420 | ;; | |
| 421 | ;; (setq pos21 0 | |
| 422 | ;; len (length epat2) | |
| 423 | ;; pos22 len) | |
| 424 | ;; (while (and (< pos21 len) (not (= (aref epat2 pos21) ?*))) | |
| 425 | ;; (setq pos21 (1+ pos21))) | |
| 426 | ;; (while (and (> pos22 0) (not (= (aref epat2 (1- pos22)) ?*))) | |
| 427 | ;; (setq pos22 (1- pos22))) | |
| 428 | ;; | |
| 429 | ;; (if (and (> (length str1) pos12) (>= pos12 pos11) (> pos11 -1) | |
| 430 | ;; (> (length str2) pos22) (>= pos22 pos21) (> pos21 -1)) | |
| 431 | ;; (string= (substring str1 pos11 pos12) | |
| 432 | ;; (substring str2 pos21 pos22))) | |
| 433 | ;; )) | |
| 434 | ||
| 435 | ||
| 436 | ;; Prepare meta-buffer in accordance with the argument-function and | |
| 437 | ;; redraw-function. Must return the created meta-buffer. | |
| 438 | (defun ediff-prepare-meta-buffer (action-func meta-list | |
| 439 | meta-buffer-name redraw-function | |
| 440 | jobname &optional startup-hooks) | |
| 441 | (let* ((meta-buffer-name | |
| 442 | (ediff-unique-buffer-name meta-buffer-name "*")) | |
| 443 | (meta-buffer (get-buffer-create meta-buffer-name))) | |
| 444 | (ediff-eval-in-buffer meta-buffer | |
| 445 | ||
| 446 | ;; comes first | |
| 447 | (ediff-meta-mode) | |
| 448 | ||
| 449 | (setq ediff-meta-action-function action-func | |
| 450 | ediff-meta-redraw-function redraw-function | |
| 451 | ediff-metajob-name jobname | |
| 452 | ediff-meta-buffer meta-buffer) | |
| 453 | ||
| 454 | ;; comes after ediff-meta-action-function is set | |
| 455 | (ediff-setup-meta-map) | |
| 456 | ||
| 457 | (if (eq ediff-metajob-name 'ediff-registry) | |
| 458 | (progn | |
| 459 | (setq ediff-registry-buffer meta-buffer | |
| 460 | ediff-meta-list meta-list) | |
| 461 | ;; this func is used only from registry buffer, not from other | |
| 462 | ;; meta-buffs. | |
| 463 | (define-key | |
| 464 | ediff-meta-buffer-map "M" 'ediff-show-meta-buff-from-registry)) | |
| 465 | ;; initialize the meta list -- don't do this for registry we prepend | |
| 466 | ;; '(nil nil) nil to all elts of meta-list, except the first. The | |
| 467 | ;; first nil will later be replaced by the session buffer. The second | |
| 468 | ;; is reserved for session status. | |
| 469 | ;; (car ediff-meta-list) gets cons'ed with the session group buffer. | |
| 470 | (setq ediff-meta-list | |
| 471 | (cons (cons meta-buffer (car meta-list)) | |
| 472 | (mapcar (function | |
| 473 | (lambda (elt) | |
| 474 | (cons nil (cons nil elt)))) | |
| 475 | (cdr meta-list))))) | |
| 476 | ||
| 477 | (or (eq meta-buffer ediff-registry-buffer) | |
| 478 | (setq ediff-session-registry | |
| 479 | (cons meta-buffer ediff-session-registry))) | |
| 480 | ||
| 481 | ;; redraw-function uses ediff-meta-list | |
| 482 | (funcall redraw-function ediff-meta-list) | |
| 483 | ||
| 484 | ;; set read-only/non-modified | |
| 485 | (setq buffer-read-only t) | |
| 486 | (set-buffer-modified-p nil) | |
| 487 | ||
| 488 | (run-hooks 'startup-hooks) | |
| 489 | ;; arrange for showing directory contents differences | |
| 490 | ;; must be after run startup-hooks, since ediff-dir-difference-list is | |
| 491 | ;; set inside these hooks | |
| 492 | (if (eq action-func 'ediff-dir-action) | |
| 493 | (progn | |
| 494 | ;; put meta buffer in (car ediff-dir-difference-list) | |
| 495 | (setq ediff-dir-difference-list | |
| 496 | (cons (cons meta-buffer (car ediff-dir-difference-list)) | |
| 497 | (cdr ediff-dir-difference-list))) | |
| 498 | ||
| 499 | (or (ediff-dir1-metajob jobname) | |
| 500 | (ediff-draw-dir-diffs ediff-dir-difference-list)) | |
| 501 | (define-key ediff-meta-buffer-map "h" 'ediff-mark-for-hiding) | |
| 502 | (define-key | |
| 503 | ediff-meta-buffer-map "x" 'ediff-hide-marked-sessions) | |
| 504 | (define-key ediff-meta-buffer-map "m" 'ediff-mark-for-operation) | |
| 505 | (if (ediff-collect-diffs-metajob jobname) | |
| 506 | (define-key | |
| 507 | ediff-meta-buffer-map "P" 'ediff-collect-custom-diffs)) | |
| 508 | (define-key ediff-meta-buffer-map "u" 'ediff-up-meta-hierarchy) | |
| 509 | (define-key ediff-meta-buffer-map "D" 'ediff-show-dir-diffs))) | |
| 510 | ||
| 511 | (if (eq ediff-metajob-name 'ediff-registry) | |
| 512 | (run-hooks 'ediff-registry-setup-hook) | |
| 513 | (run-hooks 'ediff-session-group-setup-hook)) | |
| 514 | ) ; eval in meta-buffer | |
| 515 | meta-buffer)) | |
| 516 | ||
| 517 | ||
| 518 | ;; this is a setup function for ediff-directories | |
| 519 | ;; must return meta-buffer | |
| 520 | (defun ediff-redraw-directory-group-buffer (meta-list) | |
| 521 | ;; extract directories | |
| 522 | (let ((meta-buf (ediff-get-group-buffer meta-list)) | |
| 523 | (empty t) | |
| 524 | (sessionNum 0) | |
| 525 | regexp elt session-buf f1 f2 f3 pt | |
| 526 | point tmp-list buffer-read-only) | |
| 527 | (ediff-eval-in-buffer meta-buf | |
| 528 | (setq point (point)) | |
| 529 | (erase-buffer) | |
| 530 | (insert (format ediff-meta-buffer-message | |
| 531 | (ediff-abbrev-jobname ediff-metajob-name))) | |
| 532 | ||
| 533 | (setq regexp (ediff-get-group-regexp meta-list)) | |
| 534 | ||
| 535 | (if (ediff-collect-diffs-metajob) | |
| 536 | (insert | |
| 537 | " `P':\tcollect custom diffs of all marked sessions\n")) | |
| 538 | (insert | |
| 539 | " `u':\tshow parent session group | |
| 540 | `D':\tdisplay differences among the contents of directories\n\n") | |
| 541 | ||
| 542 | (if (and (stringp regexp) (> (length regexp) 0)) | |
| 543 | (insert (format "Filter-through regular expression: %s\n" regexp))) | |
| 544 | ||
| 545 | (insert "\n | |
| 546 | Size Name | |
| 547 | ----------------------------------------------------------------------- | |
| 548 | ||
| 549 | ") | |
| 550 | ||
| 551 | ;; discard info on directories and regexp | |
| 552 | (setq meta-list (cdr meta-list) | |
| 553 | tmp-list meta-list) | |
| 554 | (while (and tmp-list empty) | |
| 555 | (if (and (car tmp-list) | |
| 556 | (not (eq (ediff-get-session-status (car tmp-list)) ?I))) | |
| 557 | (setq empty nil)) | |
| 558 | (setq tmp-list (cdr tmp-list))) | |
| 559 | ||
| 560 | (if empty | |
| 561 | (insert | |
| 562 | " ****** ****** This session group has no members\n")) | |
| 563 | ||
| 564 | ;; now organize file names like this: | |
| 565 | ;; preferred format: | |
| 566 | ;; use-mark sizeA dateA sizeB dateB filename | |
| 567 | ;; I don't have time to mess up with calculating last modtimes | |
| 568 | ;; (XEmacs has no decode-time function), so | |
| 569 | ;; the actual format is: | |
| 570 | ;; use-mark Size filename | |
| 571 | ;; make sure directories are displayed with a trailing slash. | |
| 572 | ;; If one is a directory and another isn't, indicate this with a `?' | |
| 573 | (while meta-list | |
| 574 | (setq elt (car meta-list) | |
| 575 | meta-list (cdr meta-list) | |
| 576 | sessionNum (1+ sessionNum)) | |
| 577 | (if (eq (ediff-get-session-status elt) ?I) | |
| 578 | () | |
| 579 | (setq session-buf (ediff-get-session-buffer elt) | |
| 580 | f1 (ediff-get-session-objA elt) | |
| 581 | f2 (ediff-get-session-objB elt) | |
| 582 | f3 (ediff-get-session-objC elt)) | |
| 583 | (setq pt (point)) | |
| 584 | ;; insert markers | |
| 585 | (insert (cond ((null session-buf) " ") ; virgin session | |
| 586 | ((ediff-buffer-live-p session-buf) "+") ;active session | |
| 587 | (t "-"))) ; finished session | |
| 588 | (insert (cond ((ediff-get-session-status elt)) ; session has status, | |
| 589 | ;;; e.g., ?H, ?I | |
| 590 | (t " "))) ; normal session | |
| 591 | (insert " Session " (int-to-string sessionNum) ":\n") | |
| 592 | (ediff-meta-insert-file-info f1) | |
| 593 | (ediff-meta-insert-file-info f2) | |
| 594 | (ediff-meta-insert-file-info f3) | |
| 595 | (ediff-set-meta-overlay pt (point) elt))) | |
| 596 | (set-buffer-modified-p nil) | |
| 597 | (goto-char point) | |
| 598 | meta-buf))) | |
| 599 | ||
| 600 | ;; Check if this is a problematic session. | |
| 601 | ;; Return nil if not. Otherwise, return symbol representing the problem | |
| 602 | ;; At present, problematic sessions occur only in -with-ancestor comparisons | |
| 603 | ;; when the ancestor is a directory rather than a file. | |
| 604 | (defun ediff-problematic-session-p (session) | |
| 605 | (let ((f1 (ediff-get-session-objA session)) | |
| 606 | (f2 (ediff-get-session-objB session)) | |
| 607 | (f3 (ediff-get-session-objC session))) | |
| 608 | (cond ((and (stringp f1) (not (file-directory-p f1)) | |
| 609 | (stringp f2) (not (file-directory-p f2)) | |
| 610 | (stringp f3) (file-directory-p f3) | |
| 611 | (ediff-ancestor-metajob)) | |
| 612 | ;; more may be added later | |
| 613 | 'ancestor-is-dir) | |
| 614 | (t nil)))) | |
| 615 | ||
| 616 | (defun ediff-meta-insert-file-info (file) | |
| 617 | (if (stringp file) | |
| 618 | (insert | |
| 619 | (format | |
| 620 | " %10d %s\n" | |
| 621 | (nth 7 (file-attributes file)) | |
| 622 | ;; dir names in meta lists have no trailing `/' so insert it | |
| 623 | (cond ((file-directory-p file) | |
| 624 | (file-name-as-directory (ediff-abbreviate-file-name file))) | |
| 625 | (t (ediff-abbreviate-file-name file))))) | |
| 626 | )) | |
| 627 | ||
| 628 | ||
| 629 | ||
| 630 | (defun ediff-draw-dir-diffs (diff-list) | |
| 631 | (if (null diff-list) (error "Lost difference info on these directories")) | |
| 632 | (let* ((buf-name (ediff-unique-buffer-name | |
| 633 | "*Ediff File Group Differences" "*")) | |
| 634 | (regexp (ediff-get-group-regexp diff-list)) | |
| 635 | (dir1 (ediff-abbreviate-file-name (ediff-get-group-objA diff-list))) | |
| 636 | (dir2 (ediff-abbreviate-file-name (ediff-get-group-objB diff-list))) | |
| 637 | (dir3 (ediff-get-group-objC diff-list)) | |
| 638 | (dir3 (if (stringp dir3) (ediff-abbreviate-file-name dir3))) | |
| 639 | (meta-buf (ediff-get-group-buffer diff-list)) | |
| 640 | (underline (make-string 26 ?-)) | |
| 641 | file code | |
| 642 | buffer-read-only) | |
| 643 | ;; skip the directory part | |
| 644 | (setq diff-list (cdr diff-list)) | |
| 645 | (setq ediff-dir-diffs-buffer (get-buffer-create buf-name)) | |
| 646 | (ediff-eval-in-buffer ediff-dir-diffs-buffer | |
| 647 | (use-local-map ediff-dir-diffs-buffer-map) | |
| 648 | (erase-buffer) | |
| 649 | (setq ediff-meta-buffer meta-buf) | |
| 650 | (insert "\t\t*** Directory Differences ***\n") | |
| 651 | (insert " | |
| 652 | Useful commands: | |
| 653 | `q': hide this buffer | |
| 654 | SPC: next line | |
| 655 | DEL: previous line\n\n") | |
| 656 | ||
| 657 | (if (and (stringp regexp) (> (length regexp) 0)) | |
| 658 | (insert (format "Filter-through regular expression: %s\n" regexp))) | |
| 659 | (insert "\n") | |
| 660 | (insert (format "\n%-27s%-26s" | |
| 661 | (ediff-truncate-string-left | |
| 662 | (ediff-abbreviate-file-name | |
| 663 | (file-name-as-directory dir1)) | |
| 664 | 25) | |
| 665 | (ediff-truncate-string-left | |
| 666 | (ediff-abbreviate-file-name | |
| 667 | (file-name-as-directory dir2)) | |
| 668 | 25))) | |
| 669 | (if dir3 | |
| 670 | (insert (format " %-25s\n" | |
| 671 | (ediff-truncate-string-left | |
| 672 | (ediff-abbreviate-file-name | |
| 673 | (file-name-as-directory dir3)) | |
| 674 | 25))) | |
| 675 | (insert "\n")) | |
| 676 | (insert (format "%s%s" underline underline)) | |
| 677 | (if (stringp dir3) | |
| 678 | (insert (format "%s\n\n" underline)) | |
| 679 | (insert "\n\n")) | |
| 680 | ||
| 681 | (if (null diff-list) | |
| 682 | (insert "\n\t*** No differences ***\n")) | |
| 683 | ||
| 684 | (while diff-list | |
| 685 | (setq file (car (car diff-list)) | |
| 686 | code (cdr (car diff-list)) | |
| 687 | diff-list (cdr diff-list)) | |
| 688 | (if (= (mod code 2) 0) ; dir1 | |
| 689 | (insert (format "%-27s" | |
| 690 | (ediff-truncate-string-left | |
| 691 | (ediff-abbreviate-file-name | |
| 692 | (if (file-directory-p (concat dir1 file)) | |
| 693 | (file-name-as-directory file) | |
| 694 | file)) | |
| 695 | 24))) | |
| 696 | (insert (format "%-27s" "---"))) | |
| 697 | (if (= (mod code 3) 0) ; dir2 | |
| 698 | (insert (format "%-26s" | |
| 699 | (ediff-truncate-string-left | |
| 700 | (ediff-abbreviate-file-name | |
| 701 | (if (file-directory-p (concat dir2 file)) | |
| 702 | (file-name-as-directory file) | |
| 703 | file)) | |
| 704 | 24))) | |
| 705 | (insert (format "%-26s" "---"))) | |
| 706 | (if (stringp dir3) | |
| 707 | (if (= (mod code 5) 0) ; dir3 | |
| 708 | (insert (format " %-25s" | |
| 709 | (ediff-truncate-string-left | |
| 710 | (ediff-abbreviate-file-name | |
| 711 | (if (file-directory-p (concat dir3 file)) | |
| 712 | (file-name-as-directory file) | |
| 713 | file)) | |
| 714 | 24))) | |
| 715 | (insert (format " %-25s" "---")))) | |
| 716 | (insert "\n")) | |
| 717 | (setq buffer-read-only t) | |
| 718 | (set-buffer-modified-p nil)) ; eval in diff buffer | |
| 719 | )) | |
| 720 | ||
| 721 | (defun ediff-bury-dir-diffs-buffer () | |
| 722 | "Bury the directory difference buffer. Display the meta buffer instead." | |
| 723 | (interactive) | |
| 724 | (let ((buf ediff-meta-buffer) | |
| 725 | wind) | |
| 726 | (bury-buffer) | |
| 727 | (if (setq wind (ediff-get-visible-buffer-window buf)) | |
| 728 | (select-window wind) | |
| 729 | (set-window-buffer (selected-window) buf)))) | |
| 730 | ||
| 731 | ;; executes in dir session group buffer | |
| 732 | ;; show buffer differences | |
| 733 | (defun ediff-show-dir-diffs () | |
| 734 | "Display differences among the directories involved in session group." | |
| 735 | (interactive) | |
| 736 | (if (ediff-dir1-metajob) | |
| 737 | (error "This command is inapplicable in the present context")) | |
| 738 | (or (ediff-buffer-live-p ediff-dir-diffs-buffer) | |
| 739 | (ediff-draw-dir-diffs ediff-dir-difference-list)) | |
| 740 | (let ((buf ediff-dir-diffs-buffer)) | |
| 741 | (other-window 1) | |
| 742 | (set-window-buffer (selected-window) buf) | |
| 743 | (goto-char (point-min)))) | |
| 744 | ||
| 745 | (defun ediff-up-meta-hierarchy () | |
| 746 | "Go to the parent session group buffer." | |
| 747 | (interactive) | |
| 748 | (if (ediff-buffer-live-p ediff-parent-meta-buffer) | |
| 749 | (ediff-show-meta-buffer ediff-parent-meta-buffer) | |
| 750 | (error "This session group has no parent"))) | |
| 751 | ||
| 752 | ||
| 753 | ;; argument is ignored | |
| 754 | (defun ediff-redraw-registry-buffer (&optional ignore) | |
| 755 | (ediff-eval-in-buffer ediff-registry-buffer | |
| 756 | (let ((point (point)) | |
| 757 | elt bufAname bufBname bufCname cur-diff total-diffs pt | |
| 758 | job-name meta-list registry-list buffer-read-only) | |
| 759 | (erase-buffer) | |
| 760 | (insert "This is a registry of all active Ediff sessions. | |
| 761 | ||
| 762 | Useful commands: | |
| 763 | button2, `v', RET over a session record: switch to that session | |
| 764 | `M' over a session record: display the associated session group | |
| 765 | `R' in any Ediff session: display session registry | |
| 766 | SPC:\tnext session | |
| 767 | DEL:\tprevious session | |
| 768 | `E':\tbrowse Ediff on-line manual | |
| 769 | `q':\tbury registry | |
| 770 | ||
| 771 | ||
| 772 | \t\tActive Ediff Sessions: | |
| 773 | \t\t---------------------- | |
| 774 | ||
| 775 | ") | |
| 776 | ;; purge registry list from dead buffers | |
| 777 | (mapcar (function (lambda (elt) | |
| 778 | (if (not (ediff-buffer-live-p elt)) | |
| 779 | (setq ediff-session-registry | |
| 780 | (delq elt ediff-session-registry))))) | |
| 781 | ediff-session-registry) | |
| 782 | ||
| 783 | (if (null ediff-session-registry) | |
| 784 | (insert " ******* No active Ediff sessions *******\n")) | |
| 785 | ||
| 786 | (setq registry-list ediff-session-registry) | |
| 787 | (while registry-list | |
| 788 | (setq elt (car registry-list) | |
| 789 | registry-list (cdr registry-list)) | |
| 790 | ||
| 791 | (if (ediff-buffer-live-p elt) | |
| 792 | (if (ediff-eval-in-buffer elt | |
| 793 | (setq job-name ediff-metajob-name | |
| 794 | meta-list ediff-meta-list) | |
| 795 | (and ediff-metajob-name | |
| 796 | (not (eq ediff-metajob-name 'ediff-registry)))) | |
| 797 | (progn | |
| 798 | (setq pt (point)) | |
| 799 | (insert (format " *group*\t%s: %s\n" | |
| 800 | (buffer-name elt) | |
| 801 | (ediff-abbrev-jobname job-name))) | |
| 802 | (insert (format "\t\t %s %s %s\n" | |
| 803 | (ediff-abbreviate-file-name | |
| 804 | (ediff-get-group-objA meta-list)) | |
| 805 | (ediff-abbreviate-file-name | |
| 806 | (or (ediff-get-group-objB meta-list) "")) | |
| 807 | (ediff-abbreviate-file-name | |
| 808 | (or (ediff-get-group-objC meta-list) "")))) | |
| 809 | (ediff-set-meta-overlay pt (point) elt)) | |
| 810 | (progn | |
| 811 | (ediff-eval-in-buffer elt | |
| 812 | (setq bufAname (if (ediff-buffer-live-p ediff-buffer-A) | |
| 813 | (buffer-name ediff-buffer-A) | |
| 814 | "!!!killed buffer!!!") | |
| 815 | bufBname (if (ediff-buffer-live-p ediff-buffer-B) | |
| 816 | (buffer-name ediff-buffer-B) | |
| 817 | "!!!killed buffer!!!") | |
| 818 | bufCname (cond ((not (ediff-3way-job)) | |
| 819 | "") | |
| 820 | ((ediff-buffer-live-p ediff-buffer-C) | |
| 821 | (buffer-name ediff-buffer-C)) | |
| 822 | (t "!!!killed buffer!!!"))) | |
| 823 | (setq total-diffs (format "%-4d" ediff-number-of-differences) | |
| 824 | cur-diff | |
| 825 | (cond ((= ediff-current-difference -1) " _") | |
| 826 | ((= ediff-current-difference | |
| 827 | ediff-number-of-differences) | |
| 828 | " $") | |
| 829 | (t (format | |
| 830 | "%4d" (1+ ediff-current-difference)))) | |
| 831 | job-name ediff-job-name)) | |
| 832 | ;; back in the meta buf | |
| 833 | (setq pt (point)) | |
| 834 | (insert cur-diff "/" total-diffs "\t" | |
| 835 | (buffer-name elt) | |
| 836 | (format ": %s" (ediff-abbrev-jobname job-name))) | |
| 837 | (insert | |
| 838 | "\n\t\t " bufAname " " bufBname " " bufCname "\n") | |
| 839 | (ediff-set-meta-overlay pt (point) elt)))) | |
| 840 | ) ; while | |
| 841 | (set-buffer-modified-p nil) | |
| 842 | (goto-char point) | |
| 843 | ))) | |
| 844 | ||
| 845 | ;; sets overlay around a meta record with 'ediff-meta-info property PROP | |
| 846 | (defun ediff-set-meta-overlay (b e prop) | |
| 847 | (let (overl) | |
| 848 | (setq overl (ediff-make-overlay b e)) | |
| 849 | (if ediff-emacs-p | |
| 850 | (ediff-overlay-put overl 'mouse-face 'highlight) | |
| 851 | (ediff-overlay-put overl 'highlight t)) | |
| 852 | (ediff-overlay-put overl 'ediff-meta-info prop))) | |
| 853 | ||
| 854 | (defun ediff-mark-for-hiding (unmark) | |
| 855 | "Mark session for hiding. With prefix arg, unmark." | |
| 856 | (interactive "P") | |
| 857 | (let* ((pos (ediff-event-point last-command-event)) | |
| 858 | (meta-buf (ediff-event-buffer last-command-event)) | |
| 859 | ;; ediff-get-meta-info gives error if meta-buf or pos are invalid | |
| 860 | (info (ediff-get-meta-info meta-buf pos)) | |
| 861 | (session-buf (ediff-get-session-buffer info))) | |
| 862 | ||
| 863 | (if unmark | |
| 864 | (ediff-set-session-status info nil) | |
| 865 | (if (ediff-buffer-live-p session-buf) | |
| 866 | (error "Can't hide active session, %s" (buffer-name session-buf))) | |
| 867 | (ediff-set-session-status info ?H)) | |
| 868 | (ediff-update-meta-buffer meta-buf) | |
| 869 | )) | |
| 870 | ||
| 871 | (defun ediff-mark-for-operation (unmark) | |
| 872 | "Mark session for a group operation. With prefix arg, unmark." | |
| 873 | (interactive "P") | |
| 874 | (let* ((pos (ediff-event-point last-command-event)) | |
| 875 | (meta-buf (ediff-event-buffer last-command-event)) | |
| 876 | ;; ediff-get-meta-info gives error if meta-buf or pos are invalid | |
| 877 | (info (ediff-get-meta-info meta-buf pos))) | |
| 878 | ||
| 879 | (if unmark | |
| 880 | (ediff-set-session-status info nil) | |
| 881 | (ediff-set-session-status info ?*)) | |
| 882 | (ediff-update-meta-buffer meta-buf) | |
| 883 | )) | |
| 884 | ||
| 885 | (defun ediff-hide-marked-sessions (unhide) | |
| 886 | "Hide marked sessions. With prefix arg, unhide." | |
| 887 | (interactive "P") | |
| 888 | (let ((grp-buf (ediff-get-group-buffer ediff-meta-list)) | |
| 889 | (meta-list (cdr ediff-meta-list)) | |
| 890 | (from (if unhide ?I ?H)) | |
| 891 | (to (if unhide ?H ?I)) | |
| 892 | (numMarked 0) | |
| 893 | elt) | |
| 894 | (while meta-list | |
| 895 | (setq elt (car meta-list) | |
| 896 | meta-list (cdr meta-list)) | |
| 897 | (if (eq (ediff-get-session-status elt) from) | |
| 898 | (progn | |
| 899 | (setq numMarked (1+ numMarked)) | |
| 900 | (ediff-set-session-status elt to)))) | |
| 901 | (if (> numMarked 0) | |
| 902 | (ediff-update-meta-buffer grp-buf) | |
| 903 | (beep) | |
| 904 | (if unhide | |
| 905 | (message "Nothing to reveal...") | |
| 906 | (message "Nothing to hide..."))) | |
| 907 | )) | |
| 908 | ||
| 909 | ;; Apply OPERATION to marked sessions. Operation expects one argument of type | |
| 910 | ;; meta-list member (not the first one), i.e., a regular session description. | |
| 911 | ;; Returns number of marked sessions on which operation was performed | |
| 912 | (defun ediff-operate-on-marked-sessions (operation) | |
| 913 | (let ((grp-buf (ediff-get-group-buffer ediff-meta-list)) | |
| 914 | (meta-list (cdr ediff-meta-list)) | |
| 915 | (marksym ?*) | |
| 916 | (numMarked 0) | |
| 917 | (sessionNum 0) | |
| 918 | elt) | |
| 919 | (while meta-list | |
| 920 | (setq elt (car meta-list) | |
| 921 | meta-list (cdr meta-list) | |
| 922 | sessionNum (1+ sessionNum)) | |
| 923 | (if (eq (ediff-get-session-status elt) marksym) | |
| 924 | (save-excursion | |
| 925 | (setq numMarked (1+ numMarked)) | |
| 926 | (funcall operation elt sessionNum)))) | |
| 927 | (ediff-update-meta-buffer grp-buf) ; just in case | |
| 928 | numMarked | |
| 929 | )) | |
| 930 | ||
| 931 | (defun ediff-append-custom-diff (session sessionNum) | |
| 932 | (or (ediff-collect-diffs-metajob) | |
| 933 | (error "Sorry, I don't do this for everyone...")) | |
| 934 | (let ((session-buf (ediff-get-session-buffer session)) | |
| 935 | (meta-diff-buff ediff-meta-diff-buffer) | |
| 936 | (metajob ediff-metajob-name) | |
| 937 | tmp-buf custom-diff-buf) | |
| 938 | (if (ediff-buffer-live-p session-buf) | |
| 939 | (ediff-eval-in-buffer session-buf | |
| 940 | (if (eq ediff-control-buffer session-buf) ; individual session | |
| 941 | (setq custom-diff-buf ediff-custom-diff-buffer)))) | |
| 942 | ||
| 943 | (or (ediff-buffer-live-p meta-diff-buff) | |
| 944 | (error "Ediff: something wrong--no multiple diffs buffer")) | |
| 945 | ||
| 946 | (cond ((ediff-buffer-live-p custom-diff-buf) | |
| 947 | (save-excursion | |
| 948 | (set-buffer meta-diff-buff) | |
| 949 | (goto-char (point-max)) | |
| 950 | (insert-buffer custom-diff-buf) | |
| 951 | (insert "\n"))) | |
| 952 | ((eq metajob 'ediff-directories) | |
| 953 | ;; get diffs by calling shell command on ediff-custom-diff-program | |
| 954 | (save-excursion | |
| 955 | (set-buffer (setq tmp-buf (get-buffer-create ediff-tmp-buffer))) | |
| 956 | (erase-buffer) | |
| 957 | (shell-command | |
| 958 | (format "%s %s %s %s" | |
| 959 | ediff-custom-diff-program ediff-custom-diff-options | |
| 960 | (ediff-get-session-objA session) | |
| 961 | (ediff-get-session-objB session)) | |
| 962 | t)) | |
| 963 | (save-excursion | |
| 964 | (set-buffer meta-diff-buff) | |
| 965 | (goto-char (point-max)) | |
| 966 | (insert-buffer tmp-buf) | |
| 967 | (insert "\n"))) | |
| 968 | (t | |
| 969 | (error | |
| 970 | "Session %d is marked but inactive--can't make its diff" | |
| 971 | sessionNum))) | |
| 972 | )) | |
| 973 | ||
| 974 | (defun ediff-collect-custom-diffs () | |
| 975 | "Collect custom diffs of marked sessions in buffer `*Ediff Multifile Diffs*'. | |
| 976 | This operation is defined only for `ediff-directories' and | |
| 977 | `ediff-directory-revisions', since its intent is to produce | |
| 978 | multifile patches. For `ediff-directory-revisions', we insist that | |
| 979 | all marked sessions must be active." | |
| 980 | (interactive) | |
| 981 | (or (ediff-buffer-live-p ediff-meta-diff-buffer) | |
| 982 | (setq ediff-meta-diff-buffer | |
| 983 | (get-buffer-create | |
| 984 | (ediff-unique-buffer-name "*Ediff Multifile Diffs" "*")))) | |
| 985 | (ediff-eval-in-buffer ediff-meta-diff-buffer | |
| 986 | (erase-buffer)) | |
| 987 | (if (> (ediff-operate-on-marked-sessions 'ediff-append-custom-diff) 0) | |
| 988 | ;; did something | |
| 989 | (display-buffer ediff-meta-diff-buffer 'not-this-window) | |
| 990 | (beep) | |
| 991 | (message "No marked sessions found"))) | |
| 992 | ||
| 993 | ||
| 994 | ;; This function executes in meta buffer. It knows where event happened. | |
| 995 | (defun ediff-dir-action () | |
| 996 | "Execute appropriate action for the selected session." | |
| 997 | (interactive) | |
| 998 | (let* ((pos (ediff-event-point last-command-event)) | |
| 999 | (meta-buf (ediff-event-buffer last-command-event)) | |
| 1000 | ;; ediff-get-meta-info gives error if meta-buf or pos are invalid | |
| 1001 | (info (ediff-get-meta-info meta-buf pos)) | |
| 1002 | session-buf file1 file2 file3 regexp) | |
| 1003 | ||
| 1004 | (setq session-buf (ediff-get-session-buffer info) | |
| 1005 | file1 (ediff-get-session-objA info) | |
| 1006 | file2 (ediff-get-session-objB info) | |
| 1007 | file3 (ediff-get-session-objC info)) | |
| 1008 | ||
| 1009 | ;; make sure we don't start on hidden sessions | |
| 1010 | ;; ?H means marked for hiding. ?I means invalid (hidden). | |
| 1011 | (if (memq (ediff-get-session-status info) '(?H ?I)) | |
| 1012 | (progn | |
| 1013 | (beep) | |
| 1014 | (if (y-or-n-p "This session is marked as hidden, unmark? ") | |
| 1015 | (progn | |
| 1016 | (ediff-set-session-status info nil) | |
| 1017 | (ediff-update-meta-buffer meta-buf)) | |
| 1018 | (error "Aborted")))) | |
| 1019 | ||
| 1020 | (ediff-eval-in-buffer meta-buf | |
| 1021 | (goto-char pos) ; if the user clicked on session--move point there | |
| 1022 | ;; First handle sessions involving directories (which are themselves | |
| 1023 | ;; session groups) | |
| 1024 | ;; After that handle individual sessions | |
| 1025 | (cond ((and (file-directory-p file1) | |
| 1026 | (stringp file2) (file-directory-p file2) | |
| 1027 | (if (stringp file3) (file-directory-p file1) t)) | |
| 1028 | ;; do ediff/ediff-merge on subdirectories | |
| 1029 | (if (ediff-buffer-live-p session-buf) | |
| 1030 | (ediff-show-meta-buffer session-buf) | |
| 1031 | (setq regexp (read-string "Filter through regular expression: " | |
| 1032 | nil 'ediff-filtering-regexp-history)) | |
| 1033 | (ediff-directories-internal | |
| 1034 | file1 file2 file3 regexp | |
| 1035 | ediff-session-action-function | |
| 1036 | ediff-metajob-name | |
| 1037 | ;; make it update car info after startup | |
| 1038 | (` (list (lambda () | |
| 1039 | ;; child session group should know its parent | |
| 1040 | (setq ediff-parent-meta-buffer | |
| 1041 | (quote (, ediff-meta-buffer))) | |
| 1042 | ;; and parent will know its child | |
| 1043 | (setcar (quote (, info)) ediff-meta-buffer))))))) | |
| 1044 | ||
| 1045 | ;; Do ediff-revision on a subdirectory | |
| 1046 | ((and (ediff-dir1-metajob) (file-directory-p file1)) | |
| 1047 | (if (ediff-buffer-live-p session-buf) | |
| 1048 | (ediff-show-meta-buffer session-buf) | |
| 1049 | (setq regexp (read-string "Filter through regular expression: " | |
| 1050 | nil 'ediff-filtering-regexp-history)) | |
| 1051 | (ediff-directory-revisions-internal | |
| 1052 | file1 regexp | |
| 1053 | ediff-session-action-function ediff-metajob-name | |
| 1054 | ;; make it update car info after startup | |
| 1055 | (` (list (lambda () | |
| 1056 | ;; child session group should know its parent | |
| 1057 | (setq ediff-parent-meta-buffer | |
| 1058 | (quote (, ediff-meta-buffer))) | |
| 1059 | ;; and parent will know its child | |
| 1060 | (setcar (quote (, info)) ediff-meta-buffer))))))) | |
| 1061 | ||
| 1062 | ;; From here on---only individual session handlers | |
| 1063 | ||
| 1064 | ;; handle an individual session with live control buffer | |
| 1065 | ((ediff-buffer-live-p session-buf) | |
| 1066 | (ediff-eval-in-buffer session-buf | |
| 1067 | (setq ediff-mouse-pixel-position (mouse-pixel-position)) | |
| 1068 | (ediff-recenter 'no-rehighlight))) | |
| 1069 | ||
| 1070 | ((ediff-problematic-session-p info) | |
| 1071 | (beep) | |
| 1072 | (if (y-or-n-p | |
| 1073 | "This session's ancestor is a directory, merge without the ancestor? ") | |
| 1074 | (ediff-merge-files | |
| 1075 | file1 file2 | |
| 1076 | ;; arrange startup hooks | |
| 1077 | (` (list (lambda () | |
| 1078 | (setq ediff-meta-buffer (, (current-buffer))) | |
| 1079 | ;; see below for the explanation of what this does | |
| 1080 | (setcar | |
| 1081 | (quote (, info)) ediff-control-buffer))))) | |
| 1082 | (error "Aborted"))) | |
| 1083 | ((ediff-dir1-metajob) ; needs 1 file arg | |
| 1084 | (funcall ediff-session-action-function | |
| 1085 | file1 | |
| 1086 | ;; arrange startup hooks | |
| 1087 | (` (list (lambda () | |
| 1088 | (setq ediff-meta-buffer (, (current-buffer))) | |
| 1089 | ;; see below for explanation of what this does | |
| 1090 | (setcar | |
| 1091 | (quote (, info)) ediff-control-buffer)))))) | |
| 1092 | ((not (ediff-metajob3)) ; need 2 file args | |
| 1093 | (funcall ediff-session-action-function | |
| 1094 | file1 file2 | |
| 1095 | ;; arrange startup hooks | |
| 1096 | (` (list (lambda () | |
| 1097 | (setq ediff-meta-buffer (, (current-buffer))) | |
| 1098 | ;; this makes ediff-startup pass the value of | |
| 1099 | ;; ediff-control-buffer back to the meta | |
| 1100 | ;; level, to the record in the meta list | |
| 1101 | ;; containing the information about the | |
| 1102 | ;; session associated with that | |
| 1103 | ;; ediff-control-buffer | |
| 1104 | (setcar | |
| 1105 | (quote (, info)) ediff-control-buffer)))))) | |
| 1106 | ((ediff-metajob3) ; need 3 file args | |
| 1107 | (funcall ediff-session-action-function | |
| 1108 | file1 file2 file3 | |
| 1109 | ;; arrange startup hooks | |
| 1110 | (` (list (lambda () | |
| 1111 | (setq ediff-meta-buffer (, (current-buffer))) | |
| 1112 | (setcar | |
| 1113 | (quote (, info)) ediff-control-buffer)))))) | |
| 1114 | ) ; cond | |
| 1115 | ) ; eval in meta-buf | |
| 1116 | )) | |
| 1117 | ||
| 1118 | (defun ediff-registry-action () | |
| 1119 | "Switch to a selected session." | |
| 1120 | (interactive) | |
| 1121 | (let* ((pos (ediff-event-point last-command-event)) | |
| 1122 | (buf (ediff-event-buffer last-command-event)) | |
| 1123 | (ctl-buf (ediff-get-meta-info buf pos))) | |
| 1124 | ||
| 1125 | (if (ediff-buffer-live-p ctl-buf) | |
| 1126 | ;; check if this is ediff-control-buffer or ediff-meta-buffer | |
| 1127 | (if (ediff-eval-in-buffer ctl-buf | |
| 1128 | (eq (key-binding "q") 'ediff-quit-meta-buffer)) | |
| 1129 | ;; it's a meta-buffer -- last action should just display it | |
| 1130 | (ediff-show-meta-buffer ctl-buf) | |
| 1131 | ;; it's a session buffer -- invoke go back to session | |
| 1132 | (ediff-eval-in-buffer ctl-buf | |
| 1133 | (setq ediff-mouse-pixel-position (mouse-pixel-position)) | |
| 1134 | (ediff-recenter 'no-rehighlight))) | |
| 1135 | (beep) | |
| 1136 | (message "You've selected a stale session --- try again") | |
| 1137 | (ediff-update-registry)) | |
| 1138 | (ediff-eval-in-buffer buf | |
| 1139 | (goto-char pos)) | |
| 1140 | )) | |
| 1141 | ||
| 1142 | ||
| 1143 | (defun ediff-show-meta-buffer (&optional meta-buf) | |
| 1144 | "Show the session group buffer." | |
| 1145 | (interactive) | |
| 1146 | (let (wind frame silent) | |
| 1147 | (if meta-buf (setq silent t)) | |
| 1148 | ||
| 1149 | (setq meta-buf (or meta-buf ediff-meta-buffer)) | |
| 1150 | (cond ((not (bufferp meta-buf)) | |
| 1151 | (error "This Ediff session is not part of a session group")) | |
| 1152 | ((not (ediff-buffer-live-p meta-buf)) | |
| 1153 | (error | |
| 1154 | "Can't find this session's group panel -- session itself is ok"))) | |
| 1155 | ||
| 1156 | (ediff-cleanup-meta-buffer meta-buf) | |
| 1157 | (ediff-eval-in-buffer meta-buf | |
| 1158 | (save-excursion | |
| 1159 | (cond ((setq wind (ediff-get-visible-buffer-window meta-buf)) | |
| 1160 | (or silent | |
| 1161 | (message | |
| 1162 | "Already showing the group panel for this session")) | |
| 1163 | (set-window-buffer wind meta-buf) | |
| 1164 | (select-window wind)) | |
| 1165 | ((window-live-p (setq wind ediff-window-C)) ;in merge--merge buf | |
| 1166 | (set-window-buffer ediff-window-C meta-buf) | |
| 1167 | (select-window wind)) | |
| 1168 | ((window-live-p (setq wind ediff-window-A)) | |
| 1169 | (set-window-buffer ediff-window-A meta-buf) | |
| 1170 | (select-window wind)) | |
| 1171 | ((window-live-p (setq wind ediff-window-B)) | |
| 1172 | (set-window-buffer ediff-window-B meta-buf) | |
| 1173 | (select-window wind)) | |
| 1174 | ((and | |
| 1175 | (setq wind | |
| 1176 | (ediff-get-visible-buffer-window ediff-registry-buffer)) | |
| 1177 | (ediff-window-display-p)) | |
| 1178 | (select-window wind) | |
| 1179 | (other-window 1) | |
| 1180 | (set-window-buffer (selected-window) meta-buf)) | |
| 1181 | (t (ediff-skip-unsuitable-frames 'ok-unsplittable) | |
| 1182 | (set-window-buffer (selected-window) meta-buf))) | |
| 1183 | )) | |
| 1184 | (if (ediff-window-display-p) | |
| 1185 | (progn | |
| 1186 | (setq frame | |
| 1187 | (window-frame (ediff-get-visible-buffer-window meta-buf))) | |
| 1188 | (raise-frame frame) | |
| 1189 | (ediff-reset-mouse frame))) | |
| 1190 | (run-hooks 'ediff-show-session-group-hook) | |
| 1191 | )) | |
| 1192 | ||
| 1193 | (defun ediff-show-meta-buff-from-registry () | |
| 1194 | "Display the session group buffer for a selected session group." | |
| 1195 | (interactive) | |
| 1196 | (let* ((pos (ediff-event-point last-command-event)) | |
| 1197 | (meta-buf (ediff-event-buffer last-command-event)) | |
| 1198 | (info (ediff-get-meta-info meta-buf pos)) | |
| 1199 | (meta-or-session-buf info)) | |
| 1200 | (ediff-eval-in-buffer meta-or-session-buf | |
| 1201 | (ediff-show-meta-buffer)))) | |
| 1202 | ||
| 1203 | ;;;###autoload | |
| 1204 | (defun ediff-show-registry () | |
| 1205 | "Display Ediff's registry." | |
| 1206 | (interactive) | |
| 1207 | (ediff-update-registry) | |
| 1208 | (if (not (ediff-buffer-live-p ediff-registry-buffer)) | |
| 1209 | (error "No active Ediff sessions or corrupted session registry")) | |
| 1210 | (let (wind frame) | |
| 1211 | ;; for some reason, point moves in ediff-registry-buffer, so we preserve it | |
| 1212 | ;; explicity | |
| 1213 | (ediff-eval-in-buffer ediff-registry-buffer | |
| 1214 | (save-excursion | |
| 1215 | (cond ((setq wind | |
| 1216 | (ediff-get-visible-buffer-window ediff-registry-buffer)) | |
| 1217 | (message "Already showing the registry") | |
| 1218 | (set-window-buffer wind ediff-registry-buffer) | |
| 1219 | (select-window wind)) | |
| 1220 | ((window-live-p ediff-window-C) | |
| 1221 | (set-window-buffer ediff-window-C ediff-registry-buffer) | |
| 1222 | (select-window ediff-window-C)) | |
| 1223 | ((window-live-p ediff-window-A) | |
| 1224 | (set-window-buffer ediff-window-A ediff-registry-buffer) | |
| 1225 | (select-window ediff-window-A)) | |
| 1226 | ((window-live-p ediff-window-B) | |
| 1227 | (set-window-buffer ediff-window-B ediff-registry-buffer) | |
| 1228 | (select-window ediff-window-B)) | |
| 1229 | ((and (setq wind | |
| 1230 | (ediff-get-visible-buffer-window ediff-meta-buffer)) | |
| 1231 | (ediff-window-display-p)) | |
| 1232 | (select-window wind) | |
| 1233 | (other-window 1) | |
| 1234 | (set-window-buffer (selected-window) ediff-registry-buffer)) | |
| 1235 | (t (ediff-skip-unsuitable-frames 'ok-unsplittable) | |
| 1236 | (set-window-buffer (selected-window) ediff-registry-buffer))) | |
| 1237 | )) | |
| 1238 | (if (ediff-window-display-p) | |
| 1239 | (progn | |
| 1240 | (setq frame | |
| 1241 | (window-frame | |
| 1242 | (ediff-get-visible-buffer-window ediff-registry-buffer))) | |
| 1243 | (raise-frame frame) | |
| 1244 | (ediff-reset-mouse frame))) | |
| 1245 | (run-hooks 'ediff-show-registry-hook) | |
| 1246 | )) | |
| 1247 | ||
| 1248 | ;;;###autoload | |
| 1249 | (defalias 'eregistry 'ediff-show-registry) | |
| 1250 | ||
| 1251 | ;; If meta-buf doesn't exist, it is created. In that case, id doesn't have a | |
| 1252 | ;; parent meta-buf | |
| 1253 | ;; Check if META-BUF exists before calling this function | |
| 1254 | (defun ediff-update-meta-buffer (meta-buf) | |
| 1255 | (ediff-eval-in-buffer (current-buffer) | |
| 1256 | (if (ediff-buffer-live-p meta-buf) | |
| 1257 | (ediff-eval-in-buffer meta-buf | |
| 1258 | (funcall ediff-meta-redraw-function ediff-meta-list)) | |
| 1259 | ))) | |
| 1260 | ||
| 1261 | (defun ediff-update-registry () | |
| 1262 | (ediff-eval-in-buffer (current-buffer) | |
| 1263 | (if (ediff-buffer-live-p ediff-registry-buffer) | |
| 1264 | (ediff-redraw-registry-buffer) | |
| 1265 | (ediff-prepare-meta-buffer | |
| 1266 | 'ediff-registry-action | |
| 1267 | ediff-session-registry | |
| 1268 | "*Ediff Registry" | |
| 1269 | 'ediff-redraw-registry-buffer | |
| 1270 | 'ediff-registry)) | |
| 1271 | )) | |
| 1272 | ||
| 1273 | ;; if meta-buf exists, it is redrawn along with parent. Otherwise, nothing | |
| 1274 | ;; happens | |
| 1275 | (defun ediff-cleanup-meta-buffer (meta-buffer) | |
| 1276 | (if (ediff-buffer-live-p meta-buffer) | |
| 1277 | (ediff-eval-in-buffer meta-buffer | |
| 1278 | (ediff-update-meta-buffer meta-buffer) | |
| 1279 | (if (ediff-buffer-live-p ediff-parent-meta-buffer) | |
| 1280 | (ediff-update-meta-buffer ediff-parent-meta-buffer))))) | |
| 1281 | ||
| 1282 | ;; t if no session in progress | |
| 1283 | (defun ediff-safe-to-quit (meta-buffer) | |
| 1284 | (if (ediff-buffer-live-p meta-buffer) | |
| 1285 | (let ((lis ediff-meta-list) | |
| 1286 | (cont t) | |
| 1287 | buffer-read-only) | |
| 1288 | (ediff-update-meta-buffer meta-buffer) | |
| 1289 | (ediff-eval-in-buffer meta-buffer | |
| 1290 | (setq lis (cdr lis)) ; discard the description part of meta-list | |
| 1291 | (while (and cont lis) | |
| 1292 | (if (ediff-buffer-live-p | |
| 1293 | (ediff-get-group-buffer lis)) ; in progress | |
| 1294 | (setq cont nil)) | |
| 1295 | (setq lis (cdr lis))) | |
| 1296 | cont)))) | |
| 1297 | ||
| 1298 | (defun ediff-quit-meta-buffer () | |
| 1299 | "If no unprocessed sessions in the group, delete the meta buffer. | |
| 1300 | If no session is in progress, ask to confirm before deleting meta buffer. | |
| 1301 | Otherwise, bury the meta buffer. | |
| 1302 | If this is a session registry buffer then just bury it." | |
| 1303 | (interactive) | |
| 1304 | (let* ((buf (current-buffer)) | |
| 1305 | (dir-diffs-buffer ediff-dir-diffs-buffer) | |
| 1306 | (meta-diff-buffer ediff-meta-diff-buffer) | |
| 1307 | (parent-buf ediff-parent-meta-buffer) | |
| 1308 | (dont-show-registry (eq buf ediff-registry-buffer))) | |
| 1309 | (if dont-show-registry | |
| 1310 | (bury-buffer) | |
| 1311 | (ediff-cleanup-meta-buffer buf) | |
| 1312 | (cond ((and (ediff-safe-to-quit buf) | |
| 1313 | (y-or-n-p "Quit this session group? ")) | |
| 1314 | (ediff-dispose-of-meta-buffer buf)) | |
| 1315 | ((ediff-safe-to-quit buf) | |
| 1316 | (bury-buffer)) | |
| 1317 | (t | |
| 1318 | (bury-buffer) | |
| 1319 | (beep) | |
| 1320 | (message | |
| 1321 | "Group has active sessions, panel not deleted"))) | |
| 1322 | (ediff-cleanup-meta-buffer parent-buf) | |
| 1323 | (ediff-kill-buffer-carefully dir-diffs-buffer) | |
| 1324 | (ediff-kill-buffer-carefully meta-diff-buffer) | |
| 1325 | (if (ediff-buffer-live-p parent-buf) | |
| 1326 | (progn | |
| 1327 | (setq dont-show-registry t) | |
| 1328 | (ediff-show-meta-buffer parent-buf))) | |
| 1329 | ) | |
| 1330 | (or dont-show-registry | |
| 1331 | (ediff-show-registry)))) | |
| 1332 | ||
| 1333 | (defun ediff-dispose-of-meta-buffer (buf) | |
| 1334 | (setq ediff-session-registry (delq buf ediff-session-registry)) | |
| 1335 | (ediff-eval-in-buffer buf | |
| 1336 | (if (ediff-buffer-live-p ediff-dir-diffs-buffer) | |
| 1337 | (kill-buffer ediff-dir-diffs-buffer))) | |
| 1338 | (kill-buffer buf)) | |
| 1339 | ||
| 1340 | ||
| 1341 | ;; obtain information on a meta record where the user clicked or typed | |
| 1342 | ;; BUF is the buffer where this happened and POINT is the position | |
| 1343 | ;; If optional NOERROR arg is given, don't report error and return nil if no | |
| 1344 | ;; meta info is found on line. | |
| 1345 | (defun ediff-get-meta-info (buf point &optional noerror) | |
| 1346 | (let (result olist tmp) | |
| 1347 | (if (and point (ediff-buffer-live-p buf)) | |
| 1348 | (ediff-eval-in-buffer buf | |
| 1349 | (if ediff-xemacs-p | |
| 1350 | (setq result | |
| 1351 | (if (setq tmp (extent-at point buf 'ediff-meta-info)) | |
| 1352 | (ediff-overlay-get tmp 'ediff-meta-info))) | |
| 1353 | (setq olist (overlays-at point)) | |
| 1354 | (setq olist | |
| 1355 | (mapcar (function (lambda (elt) | |
| 1356 | (overlay-get elt 'ediff-meta-info))) | |
| 1357 | olist)) | |
| 1358 | (while (and olist (null (car olist)) | |
| 1359 | (overlay-get (car olist) 'invisible)) | |
| 1360 | (setq olist (cdr olist))) | |
| 1361 | (setq result (car olist))))) | |
| 1362 | (if result | |
| 1363 | result | |
| 1364 | (if noerror | |
| 1365 | nil | |
| 1366 | (ediff-update-registry) | |
| 1367 | (error "No session info in this line"))))) | |
| 1368 | ||
| 1369 | ;; return location of the next meta overlay after point | |
| 1370 | (defun ediff-next-meta-overlay-start (point) | |
| 1371 | (let (overl) | |
| 1372 | (if ediff-xemacs-p | |
| 1373 | (progn | |
| 1374 | (setq overl (extent-at point (current-buffer) 'ediff-meta-info)) | |
| 1375 | (if overl | |
| 1376 | (setq overl (next-extent overl)) | |
| 1377 | (setq overl (next-extent (current-buffer)))) | |
| 1378 | (if overl | |
| 1379 | (extent-start-position overl) | |
| 1380 | (point-max))) | |
| 1381 | (if (= point (point-max)) (setq point (point-min))) | |
| 1382 | (setq overl (car (overlays-at point))) | |
| 1383 | (if (and overl (overlay-get overl 'ediff-meta-info)) | |
| 1384 | (overlay-end overl) | |
| 1385 | (next-overlay-change point))))) | |
| 1386 | ||
| 1387 | (defun ediff-previous-meta-overlay-start (point) | |
| 1388 | (let (overl) | |
| 1389 | (if ediff-xemacs-p | |
| 1390 | (progn | |
| 1391 | (setq overl (extent-at point (current-buffer) 'ediff-meta-info)) | |
| 1392 | (if overl | |
| 1393 | (setq overl (previous-extent overl)) | |
| 1394 | (setq overl (previous-extent (current-buffer)))) | |
| 1395 | (if overl | |
| 1396 | (extent-start-position overl) | |
| 1397 | (point-max))) | |
| 1398 | ;;(if (bobp) (setq point (point-max))) | |
| 1399 | (setq overl (car (overlays-at point))) | |
| 1400 | (setq point (if (and overl (overlay-get overl 'ediff-meta-info)) | |
| 1401 | (previous-overlay-change (overlay-start overl)) | |
| 1402 | (previous-overlay-change point))) | |
| 1403 | (if (= point (point-min)) (point-max) point) | |
| 1404 | ))) | |
| 1405 | ||
| 1406 | ||
| 1407 | ;;; Local Variables: | |
| 1408 | ;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun) | |
| 1409 | ;;; eval: (put 'ediff-eval-in-buffer 'lisp-indent-hook 1) | |
| 1410 | ;;; End: | |
| 1411 | ||
| 1412 | (provide 'ediff-meta) | |
| 1413 | (require 'ediff-util) | |
| 1414 | ||
| 1415 | ;;; ediff-meta.el ends here |