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6b279740 RS |
1 | ;;; filecache.el --- Find files using a pre-loaded cache |
2 | ;; | |
3 | ;; Author: Peter Breton | |
4 | ;; Created: Sun Nov 10 1996 | |
6b279740 RS |
5 | ;; Keywords: |
6 | ;; Time-stamp: <97/02/07 17:26:54 peter> | |
7 | ;; | |
13161e8b RS |
8 | ;; Copyright (C) 1996 Free Software Foundation, Inc. |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
6b279740 RS |
13 | ;; it under the terms of the GNU General Public License as published by |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
13161e8b RS |
16 | |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
6b279740 | 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
13161e8b RS |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | ;; GNU General Public License for more details. | |
21 | ||
6b279740 | 22 | ;; You should have received a copy of the GNU General Public License |
13161e8b RS |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
26 | ||
6b279740 RS |
27 | ;;; Commentary: |
28 | ;; | |
29 | ;; The file-cache package is an attempt to make it easy to locate files | |
30 | ;; by name, without having to remember exactly where they are located. | |
31 | ;; This is very handy when working with source trees. You can also add | |
32 | ;; frequently used files to the cache to create a hotlist effect. | |
33 | ;; The cache can be used with any interactive command which takes a | |
34 | ;; filename as an argument. | |
35 | ;; | |
36 | ;; It is worth noting that this package works best when most of the files | |
37 | ;; in the cache have unique names, or (if they have the same name) exist in | |
38 | ;; only a few directories. The worst case is many files all with | |
39 | ;; the same name and in different directories, for example a big source tree | |
40 | ;; with a Makefile in each directory. In such a case, you should probably | |
41 | ;; use an alternate strategy to find the files. | |
42 | ;; | |
43 | ;; ADDING FILES TO THE CACHE: | |
44 | ;; | |
45 | ;; Use the following functions to add items to the file cache: | |
46 | ;; | |
47 | ;; * `file-cache-add-file': Adds a single file to the cache | |
48 | ;; | |
49 | ;; * `file-cache-add-file-list': Adds a list of files to the cache | |
50 | ;; | |
51 | ;; The following functions use the regular expressions in | |
52 | ;; `file-cache-delete-regexps' to eliminate unwanted files: | |
53 | ;; | |
54 | ;; * `file-cache-add-directory': Adds the files in a directory to the | |
55 | ;; cache. You can also specify a regular expression to match the files | |
56 | ;; which should be added. | |
57 | ;; | |
58 | ;; * `file-cache-add-directory-list': Same as above, but acts on a list | |
59 | ;; of directories. You can use `load-path', `exec-path' and the like. | |
60 | ;; | |
61 | ;; * `file-cache-add-directory-using-find': Uses the `find' command to | |
62 | ;; add a directory tree to the cache. | |
63 | ;; | |
64 | ;; * `file-cache-add-directory-using-locate': Uses the `locate' command to | |
65 | ;; add files matching a pattern to the cache. | |
66 | ;; | |
67 | ;; Use the function `file-cache-clear-cache' to remove all items from the | |
68 | ;; cache. There are a number of `file-cache-delete' functions provided | |
69 | ;; as well, but in general it is probably better to not worry too much | |
70 | ;; about extra files in the cache. | |
71 | ;; | |
72 | ;; The most convenient way to initialize the cache is with an | |
73 | ;; `eval-after-load' function, as noted in the INSTALLATION section. | |
74 | ;; | |
75 | ;; FINDING FILES USING THE CACHE: | |
76 | ;; | |
77 | ;; You can use the file-cache with any function that expects a filename as | |
78 | ;; an argument. For example: | |
79 | ;; | |
80 | ;; 1) Invoke a function which expects a filename as an argument: | |
81 | ;; M-x find-file | |
82 | ;; | |
83 | ;; 2) Begin typing a file name. | |
84 | ;; | |
85 | ;; 3) Invoke `file-cache-minibuffer-complete' (bound by default to | |
86 | ;; C-TAB) to complete on the filename using the cache. | |
87 | ;; | |
88 | ;; 4) When you have found a unique completion, the minibuffer contents | |
89 | ;; will change to the full name of that file. | |
90 | ;; | |
91 | ;; If there are a number of directories which contain the completion, | |
92 | ;; invoking `file-cache-minibuffer-complete' repeatedly will cycle through | |
93 | ;; them. | |
94 | ;; | |
95 | ;; 5) You can then edit the minibuffer contents, or press RETURN. | |
96 | ;; | |
97 | ;; It is much easier to simply try it than trying to explain it :) | |
98 | ;; | |
99 | ;;; INSTALLATION | |
100 | ;; | |
101 | ;; Insert the following into your .emacs: | |
102 | ;; | |
103 | ;; (autoload 'file-cache-minibuffer-complete "filecache" nil t) | |
104 | ;; | |
105 | ;; For maximum utility, you should probably define an `eval-after-load' | |
106 | ;; form which loads your favorite files: | |
107 | ;; | |
108 | ;; (eval-after-load | |
109 | ;; "filecache" | |
110 | ;; '(progn | |
111 | ;; (message "Loading file cache...") | |
112 | ;; (file-cache-add-directory-using-find "~/projects") | |
113 | ;; (file-cache-add-directory-list load-path) | |
114 | ;; (file-cache-add-directory "~/") | |
115 | ;; (file-cache-add-file-list (list "~/foo/bar" "~/baz/bar")) | |
116 | ;; )) | |
117 | ;; | |
118 | ;; If you clear and reload the cache frequently, it is probably easiest | |
119 | ;; to put your initializations in a function: | |
120 | ;; | |
121 | ;; (eval-after-load | |
122 | ;; "filecache" | |
123 | ;; '(my-file-cache-initialize)) | |
124 | ;; | |
125 | ;; (defun my-file-cache-initialize () | |
126 | ;; (interactive) | |
127 | ;; (message "Loading file cache...") | |
128 | ;; (file-cache-add-directory-using-find "~/projects") | |
129 | ;; (file-cache-add-directory-list load-path) | |
130 | ;; (file-cache-add-directory "~/") | |
131 | ;; (file-cache-add-file-list (list "~/foo/bar" "~/baz/bar")) | |
132 | ;; )) | |
133 | ;; | |
134 | ;; Of course, you can still add files to the cache afterwards, via | |
135 | ;; Lisp functions. | |
136 | ;; | |
137 | ;; RELATED WORK: | |
138 | ;; | |
139 | ;; This package is a distant relative of Noah Friedman's fff utilities. | |
140 | ;; Our goal is pretty similar, but the implementation strategies are | |
141 | ;; different. | |
13161e8b | 142 | |
6b279740 RS |
143 | ;;; Code: |
144 | ||
33933d45 AS |
145 | (defgroup file-cache nil |
146 | "Find files using a pre-loaded cache." | |
147 | :group 'files | |
148 | :prefix "file-cache-") | |
149 | ||
6b279740 RS |
150 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
151 | ;; Variables | |
152 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
153 | ||
154 | ;; User-modifiable variables | |
33933d45 | 155 | (defcustom file-cache-filter-regexps |
6b279740 RS |
156 | (list "~$" "\\.o$" "\\.exe$" "\\.a$" "\\.elc$" ",v$" "\\.output$" |
157 | "\\.$" "#$") | |
158 | "*List of regular expressions used as filters by the file cache. | |
159 | File names which match these expressions will not be added to the cache. | |
160 | Note that the functions `file-cache-add-file' and `file-cache-add-file-list' | |
33933d45 AS |
161 | do not use this variable." |
162 | :type '(repeat regexp) | |
163 | :group 'file-cache) | |
6b279740 | 164 | |
33933d45 AS |
165 | (defcustom file-cache-find-command "find" |
166 | "*External program used by `file-cache-add-directory-using-find'." | |
167 | :type 'string | |
168 | :group 'file-cache) | |
6b279740 | 169 | |
33933d45 AS |
170 | (defcustom file-cache-locate-command "locate" |
171 | "*External program used by `file-cache-add-directory-using-locate'." | |
172 | :type 'string | |
173 | :group 'file-cache) | |
6b279740 RS |
174 | |
175 | ;; Minibuffer messages | |
33933d45 AS |
176 | (defcustom file-cache-no-match-message " [File Cache: No match]" |
177 | "Message to display when there is no completion." | |
178 | :type 'string | |
179 | :group 'file-cache) | |
180 | ||
181 | (defcustom file-cache-sole-match-message " [File Cache: sole completion]" | |
182 | "Message to display when there is only one completion." | |
183 | :type 'string | |
184 | :group 'file-cache) | |
185 | ||
186 | (defcustom file-cache-non-unique-message | |
187 | " [File Cache: complete but not unique]" | |
188 | "Message to display when there is a non-unique completion." | |
189 | :type 'string | |
190 | :group 'file-cache) | |
6b279740 RS |
191 | |
192 | (defvar file-cache-multiple-directory-message nil) | |
193 | ||
194 | ;; Internal variables | |
195 | ;; This should be named *Completions* because that's what the function | |
196 | ;; switch-to-completions in simple.el expects | |
33933d45 AS |
197 | (defcustom file-cache-completions-buffer "*Completions*" |
198 | "Buffer to display completions when using the file cache." | |
199 | :type 'string | |
200 | :group 'file-cache) | |
201 | ||
202 | (defcustom file-cache-buffer "*File Cache*" | |
203 | "Buffer to hold the cache of file names." | |
204 | :type 'string | |
205 | :group 'file-cache) | |
206 | ||
207 | (defcustom file-cache-buffer-default-regexp "^.+$" | |
208 | "Regexp to match files in `file-cache-buffer'." | |
209 | :type 'regexp | |
210 | :group 'file-cache) | |
6b279740 RS |
211 | |
212 | (defvar file-cache-last-completion nil) | |
213 | ||
214 | (defvar file-cache-alist nil | |
215 | "Internal data structure to hold cache of file names.") | |
216 | ||
217 | (defvar file-cache-completions-keymap nil | |
218 | "Keymap for file cache completions buffer.") | |
219 | ||
220 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
221 | ;; Functions to add files to the cache | |
222 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
223 | ||
224 | (defun file-cache-add-directory (directory &optional regexp) | |
225 | "Add DIRECTORY to the file cache. | |
226 | If the optional REGEXP argument is non-nil, only files which match it will | |
227 | be added to the cache." | |
228 | (interactive "DAdd files from directory: ") | |
229 | (let* ((dir (expand-file-name directory)) | |
230 | (dir-files (directory-files dir t regexp)) | |
231 | ) | |
232 | ;; Filter out files we don't want to see | |
233 | (mapcar | |
234 | '(lambda (file) | |
235 | (mapcar | |
236 | '(lambda (regexp) | |
237 | (if (string-match regexp file) | |
238 | (setq dir-files (delq file dir-files)))) | |
239 | file-cache-filter-regexps)) | |
240 | dir-files) | |
241 | (file-cache-add-file-list dir-files))) | |
242 | ||
243 | (defun file-cache-add-directory-list (directory-list &optional regexp) | |
244 | "Add DIRECTORY-LIST (a list of directory names) to the file cache. | |
245 | If the optional REGEXP argument is non-nil, only files which match it | |
246 | will be added to the cache. Note that the REGEXP is applied to the files | |
247 | in each directory, not to the directory list itself." | |
248 | (interactive "XAdd files from directory list: ") | |
249 | (mapcar | |
250 | '(lambda (dir) (file-cache-add-directory dir regexp)) | |
251 | directory-list)) | |
252 | ||
253 | (defun file-cache-add-file-list (file-list) | |
254 | "Add FILE-LIST (a list of files names) to the file cache." | |
255 | (interactive "XFile List: ") | |
256 | (mapcar 'file-cache-add-file file-list)) | |
257 | ||
258 | ;; Workhorse function | |
259 | (defun file-cache-add-file (file) | |
260 | "Add FILE to the file cache." | |
261 | (interactive "fAdd File: ") | |
262 | (let* ((file-name (file-name-nondirectory file)) | |
263 | (dir-name (file-name-directory file)) | |
264 | (the-entry (assoc file-name file-cache-alist)) | |
265 | ) | |
266 | ;; Does the entry exist already? | |
267 | (if the-entry | |
268 | (if (or (and (stringp (cdr the-entry)) | |
269 | (string= dir-name (cdr the-entry))) | |
270 | (and (listp (cdr the-entry)) | |
271 | (member dir-name (cdr the-entry)))) | |
272 | nil | |
273 | (setcdr the-entry (append (list dir-name) (cdr the-entry))) | |
274 | ) | |
275 | ;; If not, add it to the cache | |
276 | (setq file-cache-alist | |
277 | (cons (cons file-name (list dir-name)) | |
278 | file-cache-alist))) | |
279 | )) | |
280 | ||
281 | (defun file-cache-add-directory-using-find (directory) | |
282 | "Use the `find' command to add files to the file cache. | |
283 | Find is run in DIRECTORY." | |
284 | (interactive "DAdd files under directory: ") | |
285 | (let ((dir (expand-file-name directory))) | |
286 | (set-buffer (get-buffer-create file-cache-buffer)) | |
287 | (erase-buffer) | |
288 | (call-process file-cache-find-command nil | |
289 | (get-buffer file-cache-buffer) nil | |
290 | dir "-name" | |
291 | (if (memq system-type | |
292 | (list 'windows-nt 'ms-dos)) "'*'" "*") | |
293 | "-print") | |
294 | (file-cache-add-from-file-cache-buffer))) | |
295 | ||
296 | (defun file-cache-add-directory-using-locate (string) | |
297 | "Use the `locate' command to add files to the file cache. | |
298 | STRING is passed as an argument to the locate command." | |
299 | (interactive "sAdd files using locate string: ") | |
300 | (set-buffer (get-buffer-create file-cache-buffer)) | |
301 | (erase-buffer) | |
302 | (call-process file-cache-locate-command nil | |
303 | (get-buffer file-cache-buffer) nil | |
304 | string) | |
305 | (file-cache-add-from-file-cache-buffer)) | |
306 | ||
307 | (defun file-cache-add-from-file-cache-buffer (&optional regexp) | |
308 | "Add any entries found in the file cache buffer. | |
309 | Each entry matches the regular expression `file-cache-buffer-default-regexp' | |
310 | or the optional REGEXP argument." | |
311 | (set-buffer file-cache-buffer) | |
312 | (mapcar | |
313 | (function (lambda (elt) | |
314 | (goto-char (point-min)) | |
315 | (delete-matching-lines elt))) | |
316 | file-cache-filter-regexps) | |
317 | (goto-char (point-min)) | |
318 | (let ((full-filename)) | |
319 | (while (re-search-forward | |
320 | (or regexp file-cache-buffer-default-regexp) | |
321 | (point-max) t) | |
322 | (setq full-filename (buffer-substring-no-properties | |
323 | (match-beginning 0) (match-end 0))) | |
324 | (file-cache-add-file full-filename)))) | |
325 | ||
326 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
327 | ;; Functions to delete from the cache | |
328 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
329 | ||
330 | (defun file-cache-clear-cache () | |
331 | "Clear the file cache." | |
332 | (interactive) | |
333 | (setq file-cache-alist nil)) | |
334 | ||
335 | ;; This clears *all* files with the given name | |
336 | (defun file-cache-delete-file (file) | |
337 | "Delete FILE from the file cache." | |
338 | (interactive | |
339 | (list (completing-read "Delete file from cache: " file-cache-alist))) | |
340 | (setq file-cache-alist | |
341 | (delq (assoc file file-cache-alist) file-cache-alist))) | |
342 | ||
343 | (defun file-cache-delete-file-list (file-list) | |
344 | "Delete FILE-LIST (a list of files) from the file cache." | |
345 | (interactive "XFile List: ") | |
346 | (mapcar 'file-cache-delete-file file-list)) | |
347 | ||
348 | (defun file-cache-delete-file-regexp (regexp) | |
349 | "Delete files matching REGEXP from the file cache." | |
350 | (interactive "sRegexp: ") | |
351 | (let ((delete-list)) | |
352 | (mapcar '(lambda (elt) | |
353 | (and (string-match regexp (car elt)) | |
354 | (setq delete-list (cons (car elt) delete-list)))) | |
355 | file-cache-alist) | |
356 | (file-cache-delete-file-list delete-list) | |
357 | (message "Deleted %d files from file cache" (length delete-list)))) | |
358 | ||
359 | (defun file-cache-delete-directory (directory) | |
360 | "Delete DIRECTORY from the file cache." | |
361 | (interactive "DDelete directory from file cache: ") | |
362 | (let ((dir (expand-file-name directory)) | |
363 | (result 0)) | |
364 | (mapcar | |
365 | '(lambda (entry) | |
366 | (if (file-cache-do-delete-directory dir entry) | |
367 | (setq result (1+ result)))) | |
368 | file-cache-alist) | |
369 | (if (zerop result) | |
370 | (error "No entries containing %s found in cache" directory) | |
371 | (message "Deleted %d entries" result)))) | |
372 | ||
373 | (defun file-cache-do-delete-directory (dir entry) | |
374 | (let ((directory-list (cdr entry)) | |
375 | (directory (file-cache-canonical-directory dir)) | |
376 | ) | |
377 | (and (member directory directory-list) | |
378 | (if (equal 1 (length directory-list)) | |
379 | (setq file-cache-alist | |
380 | (delq entry file-cache-alist)) | |
381 | (setcdr entry (delete directory directory-list))) | |
382 | ) | |
383 | )) | |
384 | ||
385 | (defun file-cache-delete-directory-list (directory-list) | |
386 | "Delete DIRECTORY-LIST (a list of directories) from the file cache." | |
387 | (interactive "XDirectory List: ") | |
388 | (mapcar 'file-cache-delete-directory directory-list)) | |
389 | ||
390 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
391 | ;; Utility functions | |
392 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
393 | ||
394 | ;; Returns the name of a directory for a file in the cache | |
395 | (defun file-cache-directory-name (file) | |
396 | (let* ((directory-list (cdr (assoc file file-cache-alist))) | |
397 | (len (length directory-list)) | |
398 | (directory) | |
399 | (num) | |
400 | ) | |
401 | (if (not (listp directory-list)) | |
402 | (error "Unknown type in file-cache-alist for key %s" file)) | |
403 | (cond | |
404 | ;; Single element | |
405 | ((eq 1 len) | |
406 | (setq directory (elt directory-list 0))) | |
407 | ;; No elements | |
408 | ((eq 0 len) | |
409 | (error "No directory found for key %s" file)) | |
410 | ;; Multiple elements | |
411 | (t | |
412 | (let* ((minibuffer-dir (file-name-directory (buffer-string))) | |
413 | (dir-list (member minibuffer-dir directory-list)) | |
414 | ) | |
415 | (setq directory | |
416 | ;; If the directory is in the list, return the next element | |
417 | ;; Otherwise, return the first element | |
418 | (if dir-list | |
419 | (or (elt directory-list | |
420 | (setq num (1+ (- len (length dir-list))))) | |
421 | (elt directory-list (setq num 0))) | |
422 | (elt directory-list (setq num 0)))) | |
423 | ) | |
424 | ) | |
425 | ) | |
426 | ;; If there were multiple directories, set up a minibuffer message | |
427 | (setq file-cache-multiple-directory-message | |
428 | (and num (format " [%d of %d]" (1+ num) len))) | |
429 | directory)) | |
430 | ||
431 | ;; Returns the name of a file in the cache | |
432 | (defun file-cache-file-name (file) | |
433 | (let ((directory (file-cache-directory-name file))) | |
434 | (concat directory file))) | |
435 | ||
436 | ;; Return a canonical directory for comparison purposes. | |
437 | ;; Such a directory ends with a forward slash. | |
438 | (defun file-cache-canonical-directory (dir) | |
439 | (let ((directory dir)) | |
440 | (if (not (char-equal ?/ (string-to-char (substring directory -1)))) | |
441 | (concat directory "/") | |
442 | directory))) | |
443 | ||
444 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
445 | ;; Minibuffer functions | |
446 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
447 | ||
13161e8b RS |
448 | ;; The prefix argument works around a bug in the minibuffer completion. |
449 | ;; The completion function doesn't distinguish between the states: | |
450 | ;; | |
451 | ;; "Multiple completions of name" (eg, Makefile, Makefile.in) | |
452 | ;; "Name available in multiple directories" (/tmp/Makefile, ~me/Makefile) | |
453 | ;; | |
454 | ;; The default is to do the former; a prefix arg forces the latter. | |
455 | ||
6b279740 | 456 | ;;;###autoload |
13161e8b RS |
457 | (defun file-cache-minibuffer-complete (arg) |
458 | "Complete a filename in the minibuffer using a preloaded cache. | |
459 | Filecache does two kinds of substitution: it completes on names in | |
460 | the cache, and, once it has found a unique name, it cycles through | |
461 | the directories that the name is available in. With a prefix argument, | |
462 | the name is considered already unique; only the second substitution | |
463 | \(directories) is done." | |
464 | (interactive "P") | |
6b279740 RS |
465 | (let* |
466 | ( | |
467 | (completion-ignore-case nil) | |
468 | (case-fold-search nil) | |
13161e8b RS |
469 | (string (file-name-nondirectory (buffer-string))) |
470 | (completion-string (try-completion string file-cache-alist)) | |
6b279740 RS |
471 | (completion-list) |
472 | (len) | |
473 | (file-cache-string) | |
474 | ) | |
475 | (cond | |
13161e8b RS |
476 | ;; If it's the only match, replace the original contents |
477 | ((or arg (eq completion-string t)) | |
478 | (setq file-cache-string (file-cache-file-name string)) | |
479 | (if (string= file-cache-string (buffer-string)) | |
480 | (file-cache-temp-minibuffer-message file-cache-sole-match-message) | |
481 | (erase-buffer) | |
482 | (insert-string file-cache-string) | |
483 | (if file-cache-multiple-directory-message | |
484 | (file-cache-temp-minibuffer-message | |
485 | file-cache-multiple-directory-message)) | |
486 | )) | |
487 | ||
6b279740 RS |
488 | ;; If it's the longest match, insert it |
489 | ((stringp completion-string) | |
490 | ;; If we've already inserted a unique string, see if the user | |
491 | ;; wants to use that one | |
492 | (if (and (string= string completion-string) | |
493 | (assoc string file-cache-alist)) | |
494 | (if (and (eq last-command this-command) | |
495 | (string= file-cache-last-completion completion-string)) | |
496 | (progn | |
497 | (erase-buffer) | |
498 | (insert-string (file-cache-file-name completion-string)) | |
499 | (setq file-cache-last-completion nil) | |
500 | ) | |
501 | (file-cache-temp-minibuffer-message file-cache-non-unique-message) | |
502 | (setq file-cache-last-completion string) | |
503 | ) | |
504 | (setq file-cache-last-completion string) | |
505 | (setq completion-list (all-completions string file-cache-alist) | |
506 | len (length completion-list)) | |
507 | (if (> len 1) | |
508 | (progn | |
509 | (goto-char (point-max)) | |
510 | (insert-string | |
511 | (substring completion-string (length string))) | |
512 | ;; Add our own setup function to the Completions Buffer | |
513 | (let ((completion-setup-hook | |
514 | (reverse | |
515 | (append (list 'file-cache-completion-setup-function) | |
516 | completion-setup-hook))) | |
517 | ) | |
518 | (with-output-to-temp-buffer file-cache-completions-buffer | |
519 | (display-completion-list completion-list)) | |
520 | ) | |
521 | ) | |
522 | (setq file-cache-string (file-cache-file-name completion-string)) | |
523 | (if (string= file-cache-string (buffer-string)) | |
13161e8b RS |
524 | (file-cache-temp-minibuffer-message |
525 | file-cache-sole-match-message) | |
6b279740 RS |
526 | (erase-buffer) |
527 | (insert-string file-cache-string) | |
528 | (if file-cache-multiple-directory-message | |
529 | (file-cache-temp-minibuffer-message | |
530 | file-cache-multiple-directory-message))) | |
531 | ))) | |
13161e8b | 532 | |
6b279740 RS |
533 | ;; No match |
534 | ((eq completion-string nil) | |
535 | (file-cache-temp-minibuffer-message file-cache-no-match-message)) | |
536 | ) | |
537 | )) | |
538 | ||
539 | ;; Lifted from "complete.el" | |
540 | (defun file-cache-temp-minibuffer-message (msg) | |
541 | "A Lisp version of `temp_minibuffer_message' from minibuf.c." | |
542 | (let ((savemax (point-max))) | |
543 | (save-excursion | |
544 | (goto-char (point-max)) | |
545 | (insert msg)) | |
546 | (let ((inhibit-quit t)) | |
547 | (sit-for 2) | |
548 | (delete-region savemax (point-max)) | |
549 | (if quit-flag | |
550 | (setq quit-flag nil | |
551 | unread-command-events (list 7)))))) | |
552 | ||
553 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
554 | ;; Completion functions | |
555 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
556 | ||
557 | (defun file-cache-completion-setup-function () | |
558 | (set-buffer file-cache-completions-buffer) | |
559 | ||
560 | (if file-cache-completions-keymap | |
561 | nil | |
562 | (setq file-cache-completions-keymap | |
563 | (copy-keymap completion-list-mode-map)) | |
564 | (define-key file-cache-completions-keymap [mouse-2] | |
565 | 'file-cache-mouse-choose-completion) | |
566 | (define-key file-cache-completions-keymap "\C-m" | |
567 | 'file-cache-choose-completion)) | |
568 | ||
569 | (use-local-map file-cache-completions-keymap) | |
570 | ) | |
571 | ||
572 | (defun file-cache-choose-completion () | |
573 | "Choose a completion in the `*Completions*' buffer." | |
574 | (interactive) | |
575 | (let ((completion-no-auto-exit t)) | |
576 | (choose-completion) | |
577 | (select-window (active-minibuffer-window)) | |
13161e8b | 578 | (file-cache-minibuffer-complete nil) |
6b279740 RS |
579 | ) |
580 | ) | |
581 | ||
582 | (defun file-cache-mouse-choose-completion (event) | |
583 | "Choose a completion with the mouse." | |
584 | (interactive "e") | |
585 | (let ((completion-no-auto-exit t)) | |
586 | (mouse-choose-completion event) | |
587 | (select-window (active-minibuffer-window)) | |
13161e8b | 588 | (file-cache-minibuffer-complete nil) |
6b279740 RS |
589 | ) |
590 | ) | |
591 | ||
592 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
593 | ;; Debugging functions | |
594 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
595 | ||
596 | (defun file-cache-debug-read-from-minibuffer (file) | |
597 | "Debugging function." | |
598 | (interactive | |
599 | (list (completing-read "File Cache: " file-cache-alist))) | |
600 | (message "%s" (assoc file file-cache-alist)) | |
601 | ) | |
602 | ||
603 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
604 | ;; Keybindings | |
605 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
606 | ||
607 | ;;;###autoload (define-key minibuffer-local-completion-map [C-tab] 'file-cache-minibuffer-complete) | |
608 | ;;;###autoload (define-key minibuffer-local-map [C-tab] 'file-cache-minibuffer-complete) | |
609 | ;;;###autoload (define-key minibuffer-local-must-match-map [C-tab] 'file-cache-minibuffer-complete) | |
610 | ||
611 | (provide 'filecache) | |
612 | ||
613 | ;;; filecache.el ends here |