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d9c54a06 | 1 | ;;; grep.el --- run `grep' and display the results |
318e2976 | 2 | |
73b0cd50 | 3 | ;; Copyright (C) 1985-1987, 1993-1999, 2001-2011 |
26dac56c | 4 | ;; Free Software Foundation, Inc. |
318e2976 KS |
5 | |
6 | ;; Author: Roland McGrath <roland@gnu.org> | |
7 | ;; Maintainer: FSF | |
8 | ;; Keywords: tools, processes | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
b1fc2b50 | 12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
318e2976 | 13 | ;; it under the terms of the GNU General Public License as published by |
b1fc2b50 GM |
14 | ;; the Free Software Foundation, either version 3 of the License, or |
15 | ;; (at your option) any later version. | |
318e2976 KS |
16 | |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b1fc2b50 | 23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
318e2976 KS |
24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;; This package provides the grep facilities documented in the Emacs | |
28 | ;; user's manual. | |
29 | ||
30 | ;;; Code: | |
31 | ||
32 | (require 'compile) | |
33 | ||
d70b5ac5 | 34 | |
318e2976 | 35 | (defgroup grep nil |
d9c54a06 | 36 | "Run `grep' and display the results." |
318e2976 KS |
37 | :group 'tools |
38 | :group 'processes) | |
39 | ||
d4bbd646 CY |
40 | (defvar grep-host-defaults-alist nil |
41 | "Default values depending on target host. | |
42 | `grep-compute-defaults' returns default values for every local or | |
43 | remote host `grep' runs. These values can differ from host to | |
44 | host. Once computed, the default values are kept here in order | |
45 | to avoid computing them again.") | |
46 | ||
47 | (defun grep-apply-setting (symbol value) | |
48 | "Set SYMBOL to VALUE, and update `grep-host-defaults-alist'. | |
49 | SYMBOL should be one of `grep-command', `grep-template', | |
50 | `grep-use-null-device', `grep-find-command', | |
51 | `grep-find-template', `grep-find-use-xargs', or | |
52 | `grep-highlight-matches'." | |
53 | (when grep-host-defaults-alist | |
54 | (let* ((host-id | |
55 | (intern (or (file-remote-p default-directory) "localhost"))) | |
56 | (host-defaults (assq host-id grep-host-defaults-alist)) | |
57 | (defaults (assq nil grep-host-defaults-alist))) | |
58 | (setcar (cdr (assq symbol host-defaults)) value) | |
59 | (setcar (cdr (assq symbol defaults)) value))) | |
60 | (set-default symbol value)) | |
318e2976 KS |
61 | |
62 | ;;;###autoload | |
63 | (defcustom grep-window-height nil | |
64 | "*Number of lines in a grep window. If nil, use `compilation-window-height'." | |
65 | :type '(choice (const :tag "Default" nil) | |
66 | integer) | |
bf247b6e | 67 | :version "22.1" |
318e2976 KS |
68 | :group 'grep) |
69 | ||
00889cf9 | 70 | (defcustom grep-highlight-matches 'auto-detect |
a601d313 | 71 | "Use special markers to highlight grep matches. |
277df088 JL |
72 | |
73 | Some grep programs are able to surround matches with special | |
74 | markers in grep output. Such markers can be used to highlight | |
a915d7a1 GM |
75 | matches in grep mode. This requires `font-lock-mode' to be active |
76 | in grep buffers, so if you have globally disabled font-lock-mode, | |
77 | you will not get highlighting. | |
277df088 | 78 | |
a601d313 | 79 | This option sets the environment variable GREP_COLORS to specify |
277df088 JL |
80 | markers for highlighting and GREP_OPTIONS to add the --color |
81 | option in front of any explicit grep options before starting | |
a58c94a2 JL |
82 | the grep. |
83 | ||
a601d313 JL |
84 | When this option is `auto', grep uses `--color=auto' to highlight |
85 | matches only when it outputs to a terminal (when `grep' is the last | |
86 | command in the pipe), thus avoiding the use of any potentially-harmful | |
87 | escape sequences when standard output goes to a file or pipe. | |
88 | ||
89 | To make grep highlight matches even into a pipe, you need the option | |
90 | `always' that forces grep to use `--color=always' to unconditionally | |
91 | output escape sequences. | |
92 | ||
d4bbd646 | 93 | In interactive usage, the actual value of this variable is set up |
a601d313 JL |
94 | by `grep-compute-defaults' when the default value is `auto-detect'. |
95 | To change the default value, use Customize or call the function | |
96 | `grep-apply-setting'." | |
00889cf9 JL |
97 | :type '(choice (const :tag "Do not highlight matches with grep markers" nil) |
98 | (const :tag "Highlight matches with grep markers" t) | |
a601d313 JL |
99 | (const :tag "Use --color=always" always) |
100 | (const :tag "Use --color=auto" auto) | |
00889cf9 | 101 | (other :tag "Not Set" auto-detect)) |
d4bbd646 | 102 | :set 'grep-apply-setting |
bf247b6e | 103 | :version "22.1" |
277df088 JL |
104 | :group 'grep) |
105 | ||
318e2976 KS |
106 | (defcustom grep-scroll-output nil |
107 | "*Non-nil to scroll the *grep* buffer window as output appears. | |
108 | ||
109 | Setting it causes the grep commands to put point at the end of their | |
110 | output window so that the end of the output is always visible rather | |
333f9019 | 111 | than the beginning." |
318e2976 | 112 | :type 'boolean |
bf247b6e | 113 | :version "22.1" |
318e2976 KS |
114 | :group 'grep) |
115 | ||
9b19858e | 116 | ;;;###autoload |
318e2976 KS |
117 | (defcustom grep-command nil |
118 | "The default grep command for \\[grep]. | |
119 | If the grep program used supports an option to always include file names | |
120 | in its output (such as the `-H' option to GNU grep), it's a good idea to | |
121 | include it when specifying `grep-command'. | |
122 | ||
d4bbd646 CY |
123 | In interactive usage, the actual value of this variable is set up |
124 | by `grep-compute-defaults'; to change the default value, use | |
125 | Customize or call the function `grep-apply-setting'." | |
318e2976 KS |
126 | :type '(choice string |
127 | (const :tag "Not Set" nil)) | |
d4bbd646 | 128 | :set 'grep-apply-setting |
318e2976 KS |
129 | :group 'grep) |
130 | ||
0acfb7ce KS |
131 | (defcustom grep-template nil |
132 | "The default command to run for \\[lgrep]. | |
0acfb7ce KS |
133 | The following place holders should be present in the string: |
134 | <C> - place to put -i if case insensitive grep. | |
135 | <F> - file names and wildcards to search. | |
7ae62430 | 136 | <X> - file names and wildcards to exclude. |
0acfb7ce | 137 | <R> - the regular expression searched for. |
d4bbd646 CY |
138 | <N> - place to insert null-device. |
139 | ||
140 | In interactive usage, the actual value of this variable is set up | |
141 | by `grep-compute-defaults'; to change the default value, use | |
142 | Customize or call the function `grep-apply-setting'." | |
0acfb7ce KS |
143 | :type '(choice string |
144 | (const :tag "Not Set" nil)) | |
d4bbd646 | 145 | :set 'grep-apply-setting |
0acfb7ce KS |
146 | :version "22.1" |
147 | :group 'grep) | |
148 | ||
318e2976 KS |
149 | (defcustom grep-use-null-device 'auto-detect |
150 | "If t, append the value of `null-device' to `grep' commands. | |
151 | This is done to ensure that the output of grep includes the filename of | |
152 | any match in the case where only a single file is searched, and is not | |
153 | necessary if the grep program used supports the `-H' option. | |
154 | ||
d4bbd646 CY |
155 | In interactive usage, the actual value of this variable is set up |
156 | by `grep-compute-defaults'; to change the default value, use | |
157 | Customize or call the function `grep-apply-setting'." | |
318e2976 KS |
158 | :type '(choice (const :tag "Do Not Append Null Device" nil) |
159 | (const :tag "Append Null Device" t) | |
160 | (other :tag "Not Set" auto-detect)) | |
d4bbd646 | 161 | :set 'grep-apply-setting |
318e2976 KS |
162 | :group 'grep) |
163 | ||
9b19858e | 164 | ;;;###autoload |
318e2976 KS |
165 | (defcustom grep-find-command nil |
166 | "The default find command for \\[grep-find]. | |
d4bbd646 CY |
167 | In interactive usage, the actual value of this variable is set up |
168 | by `grep-compute-defaults'; to change the default value, use | |
169 | Customize or call the function `grep-apply-setting'." | |
318e2976 KS |
170 | :type '(choice string |
171 | (const :tag "Not Set" nil)) | |
d4bbd646 | 172 | :set 'grep-apply-setting |
318e2976 KS |
173 | :group 'grep) |
174 | ||
0acfb7ce KS |
175 | (defcustom grep-find-template nil |
176 | "The default command to run for \\[rgrep]. | |
318e2976 KS |
177 | The following place holders should be present in the string: |
178 | <D> - base directory for find | |
179 | <X> - find options to restrict or expand the directory list | |
180 | <F> - find options to limit the files matched | |
181 | <C> - place to put -i if case insensitive grep | |
d4bbd646 CY |
182 | <R> - the regular expression searched for. |
183 | In interactive usage, the actual value of this variable is set up | |
184 | by `grep-compute-defaults'; to change the default value, use | |
185 | Customize or call the function `grep-apply-setting'." | |
318e2976 KS |
186 | :type '(choice string |
187 | (const :tag "Not Set" nil)) | |
d4bbd646 | 188 | :set 'grep-apply-setting |
bf247b6e | 189 | :version "22.1" |
318e2976 KS |
190 | :group 'grep) |
191 | ||
2796180f | 192 | (defcustom grep-files-aliases |
7ae62430 JL |
193 | '(("all" . "* .*") |
194 | ("el" . "*.el") | |
195 | ("ch" . "*.[ch]") | |
2796180f | 196 | ("c" . "*.c") |
01623c28 | 197 | ("cc" . "*.cc *.cxx *.cpp *.C *.CC *.c++") |
7ae62430 | 198 | ("cchh" . "*.cc *.[ch]xx *.[ch]pp *.[CHh] *.CC *.HH *.[ch]++") |
01623c28 | 199 | ("hh" . "*.hxx *.hpp *.[Hh] *.HH *.h++") |
2796180f | 200 | ("h" . "*.h") |
7ae62430 | 201 | ("l" . "[Cc]hange[Ll]og*") |
2796180f | 202 | ("m" . "[Mm]akefile*") |
7ae62430 JL |
203 | ("tex" . "*.tex") |
204 | ("texi" . "*.texi") | |
205 | ("asm" . "*.[sS]")) | |
0acfb7ce | 206 | "*Alist of aliases for the FILES argument to `lgrep' and `rgrep'." |
318e2976 KS |
207 | :type 'alist |
208 | :group 'grep) | |
209 | ||
a2e548a9 | 210 | (defcustom grep-find-ignored-directories |
1f0bee0a | 211 | vc-directory-exclusion-list |
49405d0e SS |
212 | "*List of names of sub-directories which `rgrep' shall not recurse into. |
213 | If an element is a cons cell, the car is called on the search directory | |
214 | to determine whether cdr should not be recursed into." | |
7ae62430 JL |
215 | :type '(choice (repeat :tag "Ignored directories" string) |
216 | (const :tag "No ignored directories" nil)) | |
217 | :group 'grep) | |
218 | ||
219 | (defcustom grep-find-ignored-files | |
220 | (cons ".#*" (delq nil (mapcar (lambda (s) | |
221 | (unless (string-match-p "/\\'" s) | |
222 | (concat "*" s))) | |
223 | completion-ignored-extensions))) | |
224 | "*List of file names which `rgrep' and `lgrep' shall exclude. | |
225 | If an element is a cons cell, the car is called on the search directory | |
226 | to determine whether cdr should not be excluded." | |
227 | :type '(choice (repeat :tag "Ignored file" string) | |
228 | (const :tag "No ignored files" nil)) | |
318e2976 KS |
229 | :group 'grep) |
230 | ||
bb72b9d0 DP |
231 | (defcustom grep-error-screen-columns nil |
232 | "*If non-nil, column numbers in grep hits are screen columns. | |
233 | See `compilation-error-screen-columns'" | |
234 | :type '(choice (const :tag "Default" nil) | |
235 | integer) | |
bf247b6e | 236 | :version "22.1" |
bb72b9d0 DP |
237 | :group 'grep) |
238 | ||
318e2976 KS |
239 | ;;;###autoload |
240 | (defcustom grep-setup-hook nil | |
241 | "List of hook functions run by `grep-process-setup' (see `run-hooks')." | |
242 | :type 'hook | |
243 | :group 'grep) | |
244 | ||
245 | (defvar grep-mode-map | |
86c7460f SS |
246 | (let ((map (make-sparse-keymap))) |
247 | (set-keymap-parent map compilation-minor-mode-map) | |
ce3cefcc CY |
248 | (define-key map " " 'scroll-up-command) |
249 | (define-key map "\^?" 'scroll-down-command) | |
0443d889 | 250 | (define-key map "\C-c\C-f" 'next-error-follow-minor-mode) |
318e2976 | 251 | |
318e2976 KS |
252 | (define-key map "\r" 'compile-goto-error) ;; ? |
253 | (define-key map "n" 'next-error-no-select) | |
254 | (define-key map "p" 'previous-error-no-select) | |
255 | (define-key map "{" 'compilation-previous-file) | |
256 | (define-key map "}" 'compilation-next-file) | |
94c713b2 JL |
257 | (define-key map "\t" 'compilation-next-error) |
258 | (define-key map [backtab] 'compilation-previous-error) | |
318e2976 KS |
259 | |
260 | ;; Set up the menu-bar | |
261 | (define-key map [menu-bar grep] | |
262 | (cons "Grep" (make-sparse-keymap "Grep"))) | |
263 | ||
264 | (define-key map [menu-bar grep compilation-kill-compilation] | |
38805987 DN |
265 | '(menu-item "Kill Grep" kill-compilation |
266 | :help "Kill the currently running grep process")) | |
267 | (define-key map [menu-bar grep compilation-separator2] '("----")) | |
318e2976 | 268 | (define-key map [menu-bar grep compilation-compile] |
38805987 DN |
269 | '(menu-item "Compile..." compile |
270 | :help "Compile the program including the current buffer. Default: run `make'")) | |
5d91db30 JL |
271 | (define-key map [menu-bar grep compilation-rgrep] |
272 | '(menu-item "Recursive grep..." rgrep | |
273 | :help "User-friendly recursive grep in directory tree")) | |
274 | (define-key map [menu-bar grep compilation-lgrep] | |
275 | '(menu-item "Local grep..." lgrep | |
276 | :help "User-friendly grep in a directory")) | |
277 | (define-key map [menu-bar grep compilation-grep-find] | |
278 | '(menu-item "Grep via Find..." grep-find | |
279 | :help "Run grep via find, with user-specified args")) | |
318e2976 | 280 | (define-key map [menu-bar grep compilation-grep] |
38805987 DN |
281 | '(menu-item "Another grep..." grep |
282 | :help "Run grep, with user-specified args, and collect output in a buffer.")) | |
318e2976 | 283 | (define-key map [menu-bar grep compilation-recompile] |
38805987 DN |
284 | '(menu-item "Repeat grep" recompile |
285 | :help "Run grep again")) | |
286 | (define-key map [menu-bar grep compilation-separator2] '("----")) | |
318e2976 | 287 | (define-key map [menu-bar grep compilation-first-error] |
38805987 DN |
288 | '(menu-item "First Match" first-error |
289 | :help "Restart at the first match, visit corresponding location")) | |
318e2976 | 290 | (define-key map [menu-bar grep compilation-previous-error] |
38805987 DN |
291 | '(menu-item "Previous Match" previous-error |
292 | :help "Visit the previous match and corresponding location")) | |
318e2976 | 293 | (define-key map [menu-bar grep compilation-next-error] |
38805987 DN |
294 | '(menu-item "Next Match" next-error |
295 | :help "Visit the next match and corresponding location")) | |
318e2976 KS |
296 | map) |
297 | "Keymap for grep buffers. | |
298 | `compilation-minor-mode-map' is a cdr of this.") | |
299 | ||
38cd9f17 | 300 | (defvar grep-mode-tool-bar-map |
30b72491 CY |
301 | ;; When bootstrapping, tool-bar-map is not properly initialized yet, |
302 | ;; so don't do anything. | |
303 | (when (keymapp (butlast tool-bar-map)) | |
304 | (let ((map (butlast (copy-keymap tool-bar-map))) | |
305 | (help (last tool-bar-map))) ;; Keep Help last in tool bar | |
306 | (tool-bar-local-item | |
307 | "left-arrow" 'previous-error-no-select 'previous-error-no-select map | |
308 | :rtl "right-arrow" | |
309 | :help "Goto previous match") | |
310 | (tool-bar-local-item | |
311 | "right-arrow" 'next-error-no-select 'next-error-no-select map | |
312 | :rtl "left-arrow" | |
313 | :help "Goto next match") | |
314 | (tool-bar-local-item | |
315 | "cancel" 'kill-compilation 'kill-compilation map | |
316 | :enable '(let ((buffer (compilation-find-buffer))) | |
317 | (get-buffer-process buffer)) | |
318 | :help "Stop grep") | |
319 | (tool-bar-local-item | |
320 | "refresh" 'recompile 'recompile map | |
321 | :help "Restart grep") | |
322 | (append map help)))) | |
38cd9f17 | 323 | |
ab55f76f SM |
324 | (defalias 'kill-grep 'kill-compilation) |
325 | ||
318e2976 KS |
326 | ;;;; TODO --- refine this!! |
327 | ||
6b3a84f2 SM |
328 | ;; (defcustom grep-use-compilation-buffer t |
329 | ;; "When non-nil, grep specific commands update `compilation-last-buffer'. | |
330 | ;; This means that standard compile commands like \\[next-error] and \\[compile-goto-error] | |
331 | ;; can be used to navigate between grep matches (the default). | |
332 | ;; Otherwise, the grep specific commands like \\[grep-next-match] must | |
333 | ;; be used to navigate between grep matches." | |
334 | ;; :type 'boolean | |
335 | ;; :group 'grep) | |
318e2976 KS |
336 | |
337 | ;; override compilation-last-buffer | |
338 | (defvar grep-last-buffer nil | |
339 | "The most recent grep buffer. | |
f911a445 | 340 | A grep buffer becomes most recent when you select Grep mode in it. |
318e2976 | 341 | Notice that using \\[next-error] or \\[compile-goto-error] modifies |
da6062e6 | 342 | `compilation-last-buffer' rather than `grep-last-buffer'.") |
318e2976 | 343 | |
9b19858e | 344 | ;;;###autoload |
2f7f4bee | 345 | (defconst grep-regexp-alist |
bfe5d7f0 JL |
346 | '( |
347 | ;; Rule to match column numbers is commented out since no known grep | |
348 | ;; produces them | |
349 | ;; ("^\\(.+?\\)\\(:[ \t]*\\)\\([1-9][0-9]*\\)\\2\\(?:\\([1-9][0-9]*\\)\\(?:-\\([1-9][0-9]*\\)\\)?\\2\\)?" | |
350 | ;; 1 3 (4 . 5)) | |
351 | ;; Note that we want to use as tight a regexp as we can to try and | |
352 | ;; handle weird file names (with colons in them) as well as possible. | |
353 | ;; E.g. we use [1-9][0-9]* rather than [0-9]+ so as to accept ":034:" | |
354 | ;; in file names. | |
355 | ("^\\(.+?\\)\\(:[ \t]*\\)\\([1-9][0-9]*\\)\\2" | |
0527e251 JL |
356 | 1 3 |
357 | ;; Calculate column positions (col . end-col) of first grep match on a line | |
358 | ((lambda () | |
359 | (when grep-highlight-matches | |
360 | (let* ((beg (match-end 0)) | |
361 | (end (save-excursion (goto-char beg) (line-end-position))) | |
362 | (mbeg (text-property-any beg end 'font-lock-face 'match))) | |
363 | (when mbeg | |
364 | (- mbeg beg))))) | |
365 | . | |
366 | (lambda () | |
367 | (when grep-highlight-matches | |
368 | (let* ((beg (match-end 0)) | |
369 | (end (save-excursion (goto-char beg) (line-end-position))) | |
370 | (mbeg (text-property-any beg end 'font-lock-face 'match)) | |
371 | (mend (and mbeg (next-single-property-change mbeg 'font-lock-face nil end)))) | |
372 | (when mend | |
373 | (- mend beg))))))) | |
ba65be24 | 374 | ("^Binary file \\(.+\\) matches$" 1 nil nil 0 1)) |
318e2976 KS |
375 | "Regexp used to match grep hits. See `compilation-error-regexp-alist'.") |
376 | ||
ab55f76f SM |
377 | (defvar grep-error "grep hit" |
378 | "Message to print when no matches are found.") | |
379 | ||
380 | ;; Reverse the colors because grep hits are not errors (though we jump there | |
381 | ;; with `next-error'), and unreadable files can't be gone to. | |
382 | (defvar grep-hit-face compilation-info-face | |
383 | "Face name to use for grep hits.") | |
384 | ||
7462142d | 385 | (defvar grep-error-face 'compilation-error |
ab55f76f SM |
386 | "Face name to use for grep error messages.") |
387 | ||
f30c45e1 JL |
388 | (defvar grep-match-face 'match |
389 | "Face name to use for grep matches.") | |
390 | ||
35952129 JL |
391 | (defvar grep-context-face 'shadow |
392 | "Face name to use for grep context lines.") | |
393 | ||
ab55f76f SM |
394 | (defvar grep-mode-font-lock-keywords |
395 | '(;; Command output lines. | |
ab55f76f SM |
396 | (": \\(.+\\): \\(?:Permission denied\\|No such \\(?:file or directory\\|device or address\\)\\)$" |
397 | 1 grep-error-face) | |
398 | ;; remove match from grep-regexp-alist before fontifying | |
c2c04c28 | 399 | ("^Grep[/a-zA-z]* started.*" |
1a0a6cef | 400 | (0 '(face nil compilation-message nil help-echo nil mouse-face nil) t)) |
c2c04c28 | 401 | ("^Grep[/a-zA-z]* finished \\(?:(\\(matches found\\))\\|with \\(no matches found\\)\\).*" |
1a0a6cef | 402 | (0 '(face nil compilation-message nil help-echo nil mouse-face nil) t) |
7462142d JL |
403 | (1 compilation-info-face nil t) |
404 | (2 compilation-warning-face nil t)) | |
c2c04c28 | 405 | ("^Grep[/a-zA-z]* \\(exited abnormally\\|interrupt\\|killed\\|terminated\\)\\(?:.*with code \\([0-9]+\\)\\)?.*" |
1a0a6cef | 406 | (0 '(face nil compilation-message nil help-echo nil mouse-face nil) t) |
7462142d | 407 | (1 grep-error-face) |
cf115520 | 408 | (2 grep-error-face nil t)) |
d9c54a06 | 409 | ("^.+?-[0-9]+-.*\n" (0 grep-context-face))) |
ab55f76f SM |
410 | "Additional things to highlight in grep output. |
411 | This gets tacked on the end of the generated expressions.") | |
412 | ||
9b19858e | 413 | ;;;###autoload |
6bdad9ae | 414 | (defvar grep-program (purecopy "grep") |
318e2976 KS |
415 | "The default grep program for `grep-command' and `grep-find-command'. |
416 | This variable's value takes effect when `grep-compute-defaults' is called.") | |
417 | ||
9b19858e | 418 | ;;;###autoload |
6bdad9ae | 419 | (defvar find-program (purecopy "find") |
318e2976 KS |
420 | "The default find program for `grep-find-command'. |
421 | This variable's value takes effect when `grep-compute-defaults' is called.") | |
422 | ||
1571d112 | 423 | ;;;###autoload |
6bdad9ae | 424 | (defvar xargs-program (purecopy "xargs") |
1571d112 JB |
425 | "The default xargs program for `grep-find-command'. |
426 | See `grep-find-use-xargs'. | |
427 | This variable's value takes effect when `grep-compute-defaults' is called.") | |
428 | ||
9b19858e | 429 | ;;;###autoload |
318e2976 | 430 | (defvar grep-find-use-xargs nil |
f3ca7378 GM |
431 | "How to invoke find and grep. |
432 | If `exec', use `find -exec {} ;'. | |
433 | If `exec-plus' use `find -exec {} +'. | |
7f3afa3d | 434 | If `gnu', use `find -print0' and `xargs -0'. |
f3ca7378 | 435 | Any other value means to use `find -print' and `xargs'. |
318e2976 KS |
436 | |
437 | This variable's value takes effect when `grep-compute-defaults' is called.") | |
438 | ||
439 | ;; History of grep commands. | |
9b19858e | 440 | ;;;###autoload |
3adbe224 | 441 | (defvar grep-history nil "History list for grep.") |
9b19858e | 442 | ;;;###autoload |
3adbe224 | 443 | (defvar grep-find-history nil "History list for grep-find.") |
318e2976 | 444 | |
0acfb7ce KS |
445 | ;; History of lgrep and rgrep regexp and files args. |
446 | (defvar grep-regexp-history nil) | |
7ae62430 | 447 | (defvar grep-files-history nil) |
0acfb7ce | 448 | |
9b19858e | 449 | ;;;###autoload |
318e2976 KS |
450 | (defun grep-process-setup () |
451 | "Setup compilation variables and buffer for `grep'. | |
ab55f76f | 452 | Set up `compilation-exit-message-function' and run `grep-setup-hook'." |
a601d313 | 453 | (when (eq grep-highlight-matches 'auto-detect) |
a58c94a2 | 454 | (grep-compute-defaults)) |
a601d313 | 455 | (unless (or (eq grep-highlight-matches 'auto-detect) |
90439906 JL |
456 | (null grep-highlight-matches) |
457 | ;; Don't output color escapes if they can't be | |
458 | ;; highlighted with `font-lock-face' by `grep-filter'. | |
459 | (null font-lock-mode)) | |
6b8d0852 JL |
460 | ;; `setenv' modifies `process-environment' let-bound in `compilation-start' |
461 | ;; Any TERM except "dumb" allows GNU grep to use `--color=auto' | |
462 | (setenv "TERM" "emacs-grep") | |
8f0e19af EZ |
463 | (setenv "GREP_OPTIONS" |
464 | (concat (getenv "GREP_OPTIONS") | |
a601d313 | 465 | " --color=" (if (eq grep-highlight-matches 'always) |
8f0e19af | 466 | "always" "auto"))) |
6b8d0852 | 467 | ;; GREP_COLOR is used in GNU grep 2.5.1, but deprecated in later versions |
983203ee | 468 | (setenv "GREP_COLOR" "01;31") |
6b8d0852 | 469 | ;; GREP_COLORS is used in GNU grep 2.5.2 and later versions |
f62bd846 | 470 | (setenv "GREP_COLORS" "mt=01;31:fn=:ln=:bn=:se=:sl=:cx=:ne")) |
318e2976 KS |
471 | (set (make-local-variable 'compilation-exit-message-function) |
472 | (lambda (status code msg) | |
473 | (if (eq status 'exit) | |
262a1439 JL |
474 | ;; This relies on the fact that `compilation-start' |
475 | ;; sets buffer-modified to nil before running the command, | |
476 | ;; so the buffer is still unmodified if there is no output. | |
477 | (cond ((and (zerop code) (buffer-modified-p)) | |
318e2976 | 478 | '("finished (matches found)\n" . "matched")) |
46c5cf66 | 479 | ((not (buffer-modified-p)) |
318e2976 KS |
480 | '("finished with no matches found\n" . "no match")) |
481 | (t | |
482 | (cons msg code))) | |
483 | (cons msg code)))) | |
318e2976 KS |
484 | (run-hooks 'grep-setup-hook)) |
485 | ||
d9c54a06 CY |
486 | (defun grep-filter () |
487 | "Handle match highlighting escape sequences inserted by the grep process. | |
488 | This function is called from `compilation-filter-hook'." | |
489 | (save-excursion | |
c89be45f | 490 | (forward-line 0) |
f62bd846 | 491 | (let ((end (point)) beg) |
d9c54a06 | 492 | (goto-char compilation-filter-start) |
c89be45f | 493 | (forward-line 0) |
f62bd846 | 494 | (setq beg (point)) |
c89be45f SM |
495 | ;; Only operate on whole lines so we don't get caught with part of an |
496 | ;; escape sequence in one chunk and the rest in another. | |
497 | (when (< (point) end) | |
498 | (setq end (copy-marker end)) | |
499 | ;; Highlight grep matches and delete marking sequences. | |
f62bd846 | 500 | (while (re-search-forward "\033\\[0?1;31m\\(.*?\\)\033\\[[0-9]*m" end 1) |
c89be45f SM |
501 | (replace-match (propertize (match-string 1) |
502 | 'face nil 'font-lock-face grep-match-face) | |
503 | t t)) | |
504 | ;; Delete all remaining escape sequences | |
f62bd846 | 505 | (goto-char beg) |
c89be45f SM |
506 | (while (re-search-forward "\033\\[[0-9;]*[mK]" end 1) |
507 | (replace-match "" t t)))))) | |
d9c54a06 | 508 | |
0acfb7ce | 509 | (defun grep-probe (command args &optional func result) |
458c8d31 MA |
510 | (let (process-file-side-effects) |
511 | (equal (condition-case nil | |
512 | (apply (or func 'process-file) command args) | |
513 | (error nil)) | |
514 | (or result 0)))) | |
0acfb7ce | 515 | |
9b19858e | 516 | ;;;###autoload |
318e2976 | 517 | (defun grep-compute-defaults () |
2e2eead3 MA |
518 | ;; Keep default values. |
519 | (unless grep-host-defaults-alist | |
520 | (add-to-list | |
521 | 'grep-host-defaults-alist | |
522 | (cons nil | |
523 | `((grep-command ,grep-command) | |
524 | (grep-template ,grep-template) | |
525 | (grep-use-null-device ,grep-use-null-device) | |
526 | (grep-find-command ,grep-find-command) | |
527 | (grep-find-template ,grep-find-template) | |
528 | (grep-find-use-xargs ,grep-find-use-xargs) | |
529 | (grep-highlight-matches ,grep-highlight-matches))))) | |
530 | (let* ((host-id | |
85e7298f | 531 | (intern (or (file-remote-p default-directory) "localhost"))) |
2e2eead3 MA |
532 | (host-defaults (assq host-id grep-host-defaults-alist)) |
533 | (defaults (assq nil grep-host-defaults-alist))) | |
05c7c7b1 | 534 | ;; There are different defaults on different hosts. They must be |
2e2eead3 | 535 | ;; computed for every host once. |
d4bbd646 CY |
536 | (dolist (setting '(grep-command grep-template |
537 | grep-use-null-device grep-find-command | |
538 | grep-find-template grep-find-use-xargs | |
539 | grep-highlight-matches)) | |
540 | (set setting | |
7860d2e3 CY |
541 | (cadr (or (assq setting host-defaults) |
542 | (assq setting defaults))))) | |
05c7c7b1 MA |
543 | |
544 | (unless (or (not grep-use-null-device) (eq grep-use-null-device t)) | |
545 | (setq grep-use-null-device | |
546 | (with-temp-buffer | |
547 | (let ((hello-file (expand-file-name "HELLO" data-directory))) | |
548 | (not | |
549 | (and (if grep-command | |
550 | ;; `grep-command' is already set, so | |
551 | ;; use that for testing. | |
552 | (grep-probe grep-command | |
553 | `(nil t nil "^English" ,hello-file) | |
554 | #'call-process-shell-command) | |
555 | ;; otherwise use `grep-program' | |
556 | (grep-probe grep-program | |
557 | `(nil t nil "-nH" "^English" ,hello-file))) | |
558 | (progn | |
559 | (goto-char (point-min)) | |
560 | (looking-at | |
561 | (concat (regexp-quote hello-file) | |
562 | ":[0-9]+:English"))))))))) | |
563 | (unless (and grep-command grep-find-command | |
564 | grep-template grep-find-template) | |
565 | (let ((grep-options | |
566 | (concat (if grep-use-null-device "-n" "-nH") | |
567 | (if (grep-probe grep-program | |
568 | `(nil nil nil "-e" "foo" ,null-device) | |
569 | nil 1) | |
570 | " -e")))) | |
571 | (unless grep-command | |
572 | (setq grep-command | |
573 | (format "%s %s " grep-program grep-options))) | |
574 | (unless grep-template | |
575 | (setq grep-template | |
7ae62430 | 576 | (format "%s <X> <C> %s <R> <F>" grep-program grep-options))) |
05c7c7b1 MA |
577 | (unless grep-find-use-xargs |
578 | (setq grep-find-use-xargs | |
579 | (cond | |
f3ca7378 GM |
580 | ((grep-probe find-program |
581 | `(nil nil nil ,null-device "-exec" "echo" | |
582 | "{}" "+")) | |
583 | 'exec-plus) | |
05c7c7b1 MA |
584 | ((and |
585 | (grep-probe find-program `(nil nil nil ,null-device "-print0")) | |
1571d112 | 586 | (grep-probe xargs-program `(nil nil nil "-0" "-e" "echo"))) |
05c7c7b1 MA |
587 | 'gnu) |
588 | (t | |
589 | 'exec)))) | |
590 | (unless grep-find-command | |
591 | (setq grep-find-command | |
0acfb7ce | 592 | (cond ((eq grep-find-use-xargs 'gnu) |
362b9d48 GM |
593 | ;; Windows shells need the program file name |
594 | ;; after the pipe symbol be quoted if they use | |
595 | ;; forward slashes as directory separators. | |
596 | (format "%s . -type f -print0 | \"%s\" -0 -e %s" | |
1571d112 | 597 | find-program xargs-program grep-command)) |
f3ca7378 | 598 | ((memq grep-find-use-xargs '(exec exec-plus)) |
05c7c7b1 | 599 | (let ((cmd0 (format "%s . -type f -exec %s" |
f3ca7378 GM |
600 | find-program grep-command)) |
601 | (null (if grep-use-null-device | |
602 | (format "%s " null-device) | |
603 | ""))) | |
05c7c7b1 | 604 | (cons |
f3ca7378 GM |
605 | (if (eq grep-find-use-xargs 'exec-plus) |
606 | (format "%s %s{} +" cmd0 null) | |
607 | (format "%s {} %s%s" cmd0 null | |
608 | (shell-quote-argument ";"))) | |
05c7c7b1 | 609 | (1+ (length cmd0))))) |
84d797c9 | 610 | (t |
362b9d48 | 611 | (format "%s . -type f -print | \"%s\" %s" |
1571d112 | 612 | find-program xargs-program grep-command))))) |
05c7c7b1 MA |
613 | (unless grep-find-template |
614 | (setq grep-find-template | |
615 | (let ((gcmd (format "%s <C> %s <R>" | |
f3ca7378 GM |
616 | grep-program grep-options)) |
617 | (null (if grep-use-null-device | |
618 | (format "%s " null-device) | |
619 | ""))) | |
05c7c7b1 | 620 | (cond ((eq grep-find-use-xargs 'gnu) |
362b9d48 | 621 | (format "%s . <X> -type f <F> -print0 | \"%s\" -0 -e %s" |
1571d112 | 622 | find-program xargs-program gcmd)) |
05c7c7b1 | 623 | ((eq grep-find-use-xargs 'exec) |
f3ca7378 GM |
624 | (format "%s . <X> -type f <F> -exec %s {} %s%s" |
625 | find-program gcmd null | |
05c7c7b1 | 626 | (shell-quote-argument ";"))) |
f3ca7378 GM |
627 | ((eq grep-find-use-xargs 'exec-plus) |
628 | (format "%s . <X> -type f <F> -exec %s %s{} +" | |
629 | find-program gcmd null)) | |
05c7c7b1 | 630 | (t |
362b9d48 | 631 | (format "%s . <X> -type f <F> -print | \"%s\" %s" |
1571d112 | 632 | find-program xargs-program gcmd)))))))) |
a601d313 | 633 | (when (eq grep-highlight-matches 'auto-detect) |
05c7c7b1 MA |
634 | (setq grep-highlight-matches |
635 | (with-temp-buffer | |
636 | (and (grep-probe grep-program '(nil t nil "--help")) | |
637 | (progn | |
638 | (goto-char (point-min)) | |
639 | (search-forward "--color" nil t)) | |
a601d313 JL |
640 | ;; Windows and DOS pipes fail `isatty' detection in Grep. |
641 | (if (memq system-type '(windows-nt ms-dos)) | |
642 | 'always 'auto))))) | |
05c7c7b1 MA |
643 | |
644 | ;; Save defaults for this host. | |
6e3aa3f5 MA |
645 | (setq grep-host-defaults-alist |
646 | (delete (assq host-id grep-host-defaults-alist) | |
647 | grep-host-defaults-alist)) | |
648 | (add-to-list | |
649 | 'grep-host-defaults-alist | |
650 | (cons host-id | |
651 | `((grep-command ,grep-command) | |
652 | (grep-template ,grep-template) | |
653 | (grep-use-null-device ,grep-use-null-device) | |
654 | (grep-find-command ,grep-find-command) | |
655 | (grep-find-template ,grep-find-template) | |
656 | (grep-find-use-xargs ,grep-find-use-xargs) | |
657 | (grep-highlight-matches ,grep-highlight-matches)))))) | |
318e2976 | 658 | |
7cb0d0ef KS |
659 | (defun grep-tag-default () |
660 | (or (and transient-mark-mode mark-active | |
661 | (/= (point) (mark)) | |
662 | (buffer-substring-no-properties (point) (mark))) | |
663 | (funcall (or find-tag-default-function | |
664 | (get major-mode 'find-tag-default-function) | |
665 | 'find-tag-default)) | |
666 | "")) | |
667 | ||
318e2976 | 668 | (defun grep-default-command () |
1571d112 | 669 | "Compute the default grep command for \\[universal-argument] \\[grep] to offer." |
7cb0d0ef | 670 | (let ((tag-default (shell-quote-argument (grep-tag-default))) |
13eb1bde RS |
671 | ;; This a regexp to match single shell arguments. |
672 | ;; Could someone please add comments explaining it? | |
318e2976 KS |
673 | (sh-arg-re "\\(\\(?:\"\\(?:[^\"]\\|\\\\\"\\)+\"\\|'[^']+'\\|[^\"' \t\n]\\)+\\)") |
674 | (grep-default (or (car grep-history) grep-command))) | |
13eb1bde | 675 | ;; In the default command, find the arg that specifies the pattern. |
318e2976 KS |
676 | (when (or (string-match |
677 | (concat "[^ ]+\\s +\\(?:-[^ ]+\\s +\\)*" | |
678 | sh-arg-re "\\(\\s +\\(\\S +\\)\\)?") | |
679 | grep-default) | |
680 | ;; If the string is not yet complete. | |
681 | (string-match "\\(\\)\\'" grep-default)) | |
13eb1bde RS |
682 | ;; Maybe we will replace the pattern with the default tag. |
683 | ;; But first, maybe replace the file name pattern. | |
684 | (condition-case nil | |
685 | (unless (or (not (stringp buffer-file-name)) | |
686 | (when (match-beginning 2) | |
687 | (save-match-data | |
688 | (string-match | |
689 | (wildcard-to-regexp | |
690 | (file-name-nondirectory | |
691 | (match-string 3 grep-default))) | |
692 | (file-name-nondirectory buffer-file-name))))) | |
693 | (setq grep-default (concat (substring grep-default | |
694 | 0 (match-beginning 2)) | |
695 | " *." | |
696 | (file-name-extension buffer-file-name)))) | |
697 | ;; In case wildcard-to-regexp gets an error | |
698 | ;; from invalid data. | |
699 | (error nil)) | |
700 | ;; Now replace the pattern with the default tag. | |
02b73b97 | 701 | (replace-match tag-default t t grep-default 1)))) |
318e2976 | 702 | |
0acfb7ce | 703 | |
318e2976 | 704 | ;;;###autoload |
0acfb7ce KS |
705 | (define-compilation-mode grep-mode "Grep" |
706 | "Sets `grep-last-buffer' and `compilation-window-height'." | |
707 | (setq grep-last-buffer (current-buffer)) | |
38cd9f17 | 708 | (set (make-local-variable 'tool-bar-map) grep-mode-tool-bar-map) |
0acfb7ce KS |
709 | (set (make-local-variable 'compilation-error-face) |
710 | grep-hit-face) | |
711 | (set (make-local-variable 'compilation-error-regexp-alist) | |
712 | grep-regexp-alist) | |
b7cf2c79 SM |
713 | ;; compilation-directory-matcher can't be nil, so we set it to a regexp that |
714 | ;; can never match. | |
79106a44 | 715 | (set (make-local-variable 'compilation-directory-matcher) '("\\`a\\`")) |
0acfb7ce KS |
716 | (set (make-local-variable 'compilation-process-setup-function) |
717 | 'grep-process-setup) | |
d9c54a06 | 718 | (set (make-local-variable 'compilation-disable-input) t) |
0527e251 JL |
719 | (set (make-local-variable 'compilation-error-screen-columns) |
720 | grep-error-screen-columns) | |
d9c54a06 | 721 | (add-hook 'compilation-filter-hook 'grep-filter nil t)) |
0acfb7ce KS |
722 | |
723 | ||
724 | ;;;###autoload | |
725 | (defun grep (command-args) | |
318e2976 KS |
726 | "Run grep, with user-specified args, and collect output in a buffer. |
727 | While grep runs asynchronously, you can use \\[next-error] (M-x next-error), | |
c426452f | 728 | or \\<grep-mode-map>\\[compile-goto-error] in the grep \ |
1571d112 JB |
729 | output buffer, to go to the lines where grep |
730 | found matches. | |
318e2976 | 731 | |
215c3847 | 732 | For doing a recursive `grep', see the `rgrep' command. For running |
9d4a3d39 | 733 | `grep' in a specific directory, see `lgrep'. |
215c3847 | 734 | |
1571d112 JB |
735 | This command uses a special history list for its COMMAND-ARGS, so you |
736 | can easily repeat a grep command. | |
318e2976 KS |
737 | |
738 | A prefix argument says to default the argument based upon the current | |
739 | tag the cursor is over, substituting it into the last grep command | |
1571d112 JB |
740 | in the grep command history (or into `grep-command' if that history |
741 | list is empty)." | |
318e2976 KS |
742 | (interactive |
743 | (progn | |
0acfb7ce | 744 | (grep-compute-defaults) |
318e2976 | 745 | (let ((default (grep-default-command))) |
286d4b3b SM |
746 | (list (read-shell-command "Run grep (like this): " |
747 | (if current-prefix-arg default grep-command) | |
748 | 'grep-history | |
749 | (if current-prefix-arg nil default)))))) | |
318e2976 KS |
750 | |
751 | ;; Setting process-setup-function makes exit-message-function work | |
752 | ;; even when async processes aren't supported. | |
19b3905f JL |
753 | (compilation-start (if (and grep-use-null-device null-device) |
754 | (concat command-args " " null-device) | |
755 | command-args) | |
0acfb7ce | 756 | 'grep-mode)) |
ab55f76f | 757 | |
318e2976 | 758 | |
318e2976 KS |
759 | ;;;###autoload |
760 | (defun grep-find (command-args) | |
761 | "Run grep via find, with user-specified args COMMAND-ARGS. | |
762 | Collect output in a buffer. | |
763 | While find runs asynchronously, you can use the \\[next-error] command | |
764 | to find the text that grep hits refer to. | |
765 | ||
766 | This command uses a special history list for its arguments, so you can | |
767 | easily repeat a find command." | |
768 | (interactive | |
769 | (progn | |
0acfb7ce | 770 | (grep-compute-defaults) |
87f54c05 | 771 | (if grep-find-command |
286d4b3b SM |
772 | (list (read-shell-command "Run find (like this): " |
773 | grep-find-command 'grep-find-history)) | |
87f54c05 RS |
774 | ;; No default was set |
775 | (read-string | |
776 | "compile.el: No `grep-find-command' command available. Press RET.") | |
777 | (list nil)))) | |
a34f7eb1 | 778 | (when command-args |
87f54c05 RS |
779 | (let ((null-device nil)) ; see grep |
780 | (grep command-args)))) | |
318e2976 | 781 | |
3d4d788a DK |
782 | ;;;###autoload |
783 | (defalias 'find-grep 'grep-find) | |
784 | ||
0acfb7ce KS |
785 | |
786 | ;; User-friendly interactive API. | |
787 | ||
788 | (defconst grep-expand-keywords | |
789 | '(("<C>" . (and cf (isearch-no-upper-case-p regexp t) "-i")) | |
790 | ("<D>" . dir) | |
791 | ("<F>" . files) | |
792 | ("<N>" . null-device) | |
793 | ("<X>" . excl) | |
794 | ("<R>" . (shell-quote-argument (or regexp "")))) | |
795 | "List of substitutions performed by `grep-expand-template'. | |
796 | If car of an element matches, the cdr is evalled in to get the | |
797 | substitution string. Note dynamic scoping of variables.") | |
798 | ||
799 | (defun grep-expand-template (template &optional regexp files dir excl) | |
800 | "Patch grep COMMAND string replacing <C>, <D>, <F>, <R>, and <X>." | |
801 | (let ((command template) | |
802 | (cf case-fold-search) | |
803 | (case-fold-search nil)) | |
804 | (dolist (kw grep-expand-keywords command) | |
805 | (if (string-match (car kw) command) | |
d0afff34 KS |
806 | (setq command |
807 | (replace-match | |
808 | (or (if (symbolp (cdr kw)) | |
41a2f8ba | 809 | (symbol-value (cdr kw)) |
d0afff34 KS |
810 | (save-match-data (eval (cdr kw)))) |
811 | "") | |
812 | t t command)))))) | |
0acfb7ce KS |
813 | |
814 | (defun grep-read-regexp () | |
815 | "Read regexp arg for interactive grep." | |
7cb0d0ef | 816 | (let ((default (grep-tag-default))) |
0acfb7ce KS |
817 | (read-string |
818 | (concat "Search for" | |
819 | (if (and default (> (length default) 0)) | |
7cb0d0ef | 820 | (format " (default \"%s\"): " default) ": ")) |
0acfb7ce KS |
821 | nil 'grep-regexp-history default))) |
822 | ||
823 | (defun grep-read-files (regexp) | |
824 | "Read files arg for interactive grep." | |
6830f449 JL |
825 | (let* ((bn (or (buffer-file-name) |
826 | (replace-regexp-in-string "<[0-9]+>\\'" "" (buffer-name)))) | |
208cc91f KS |
827 | (fn (and bn |
828 | (stringp bn) | |
829 | (file-name-nondirectory bn))) | |
7ae62430 JL |
830 | (default-alias |
831 | (and fn | |
df9db151 JL |
832 | (let ((aliases (remove (assoc "all" grep-files-aliases) |
833 | grep-files-aliases)) | |
7ae62430 JL |
834 | alias) |
835 | (while aliases | |
836 | (setq alias (car aliases) | |
837 | aliases (cdr aliases)) | |
df9db151 JL |
838 | (if (string-match (mapconcat |
839 | 'wildcard-to-regexp | |
840 | (split-string (cdr alias) nil t) | |
841 | "\\|") | |
842 | fn) | |
7ae62430 JL |
843 | (setq aliases nil) |
844 | (setq alias nil))) | |
845 | (cdr alias)))) | |
846 | (default-extension | |
847 | (and fn | |
848 | (let ((ext (file-name-extension fn))) | |
849 | (and ext (concat "*." ext))))) | |
208cc91f | 850 | (default |
7ae62430 JL |
851 | (or default-alias |
852 | default-extension | |
bcdf86fb KS |
853 | (car grep-files-history) |
854 | (car (car grep-files-aliases)))) | |
9136e895 | 855 | (files (completing-read |
0acfb7ce | 856 | (concat "Search for \"" regexp |
208cc91f KS |
857 | "\" in files" |
858 | (if default (concat " (default " default ")")) | |
859 | ": ") | |
9136e895 JL |
860 | 'read-file-name-internal |
861 | nil nil nil 'grep-files-history | |
7ae62430 JL |
862 | (delete-dups |
863 | (delq nil (append (list default default-alias default-extension) | |
864 | (mapcar 'car grep-files-aliases))))))) | |
0acfb7ce KS |
865 | (and files |
866 | (or (cdr (assoc files grep-files-aliases)) | |
867 | files)))) | |
318e2976 KS |
868 | |
869 | ;;;###autoload | |
32a2cf25 | 870 | (defun lgrep (regexp &optional files dir confirm) |
9d4a3d39 | 871 | "Run grep, searching for REGEXP in FILES in directory DIR. |
318e2976 | 872 | The search is limited to file names matching shell pattern FILES. |
0acfb7ce | 873 | FILES may use abbreviations defined in `grep-files-aliases', e.g. |
318e2976 KS |
874 | entering `ch' is equivalent to `*.[ch]'. |
875 | ||
6e7c574f KS |
876 | With \\[universal-argument] prefix, you can edit the constructed shell command line |
877 | before it is executed. | |
878 | With two \\[universal-argument] prefixes, directly edit and run `grep-command'. | |
318e2976 | 879 | |
0acfb7ce | 880 | Collect output in a buffer. While grep runs asynchronously, you |
1571d112 JB |
881 | can use \\[next-error] (M-x next-error), or \\<grep-mode-map>\\[compile-goto-error] \ |
882 | in the grep output buffer, | |
883 | to go to the lines where grep found matches. | |
318e2976 | 884 | |
0acfb7ce | 885 | This command shares argument histories with \\[rgrep] and \\[grep]." |
318e2976 | 886 | (interactive |
0acfb7ce KS |
887 | (progn |
888 | (grep-compute-defaults) | |
889 | (cond | |
890 | ((and grep-command (equal current-prefix-arg '(16))) | |
891 | (list (read-from-minibuffer "Run: " grep-command | |
32a2cf25 | 892 | nil nil 'grep-history))) |
0acfb7ce | 893 | ((not grep-template) |
5a0c3f56 | 894 | (error "grep.el: No `grep-template' available")) |
0acfb7ce | 895 | (t (let* ((regexp (grep-read-regexp)) |
9d4a3d39 KS |
896 | (files (grep-read-files regexp)) |
897 | (dir (read-directory-name "In directory: " | |
32a2cf25 JL |
898 | nil default-directory t)) |
899 | (confirm (equal current-prefix-arg '(4)))) | |
900 | (list regexp files dir confirm)))))) | |
0acfb7ce | 901 | (when (and (stringp regexp) (> (length regexp) 0)) |
32a2cf25 JL |
902 | (unless (and dir (file-directory-p dir) (file-readable-p dir)) |
903 | (setq dir default-directory)) | |
0acfb7ce KS |
904 | (let ((command regexp)) |
905 | (if (null files) | |
906 | (if (string= command grep-command) | |
907 | (setq command nil)) | |
9d4a3d39 | 908 | (setq dir (file-name-as-directory (expand-file-name dir))) |
0acfb7ce KS |
909 | (setq command (grep-expand-template |
910 | grep-template | |
911 | regexp | |
7ae62430 JL |
912 | files |
913 | nil | |
914 | (and grep-find-ignored-files | |
915 | (concat " --exclude=" | |
916 | (mapconcat | |
917 | #'(lambda (ignore) | |
918 | (cond ((stringp ignore) | |
919 | (shell-quote-argument ignore)) | |
920 | ((consp ignore) | |
921 | (and (funcall (car ignore) dir) | |
922 | (shell-quote-argument | |
923 | (cdr ignore)))))) | |
924 | grep-find-ignored-files | |
925 | " --exclude="))))) | |
0acfb7ce | 926 | (when command |
32a2cf25 | 927 | (if confirm |
0acfb7ce KS |
928 | (setq command |
929 | (read-from-minibuffer "Confirm: " | |
930 | command nil nil 'grep-history)) | |
c3e9438b | 931 | (add-to-history 'grep-history command)))) |
0acfb7ce | 932 | (when command |
32a2cf25 | 933 | (let ((default-directory dir)) |
9d4a3d39 KS |
934 | ;; Setting process-setup-function makes exit-message-function work |
935 | ;; even when async processes aren't supported. | |
936 | (compilation-start (if (and grep-use-null-device null-device) | |
937 | (concat command " " null-device) | |
c60c6d91 RS |
938 | command) |
939 | 'grep-mode)) | |
9d4a3d39 KS |
940 | (if (eq next-error-last-buffer (current-buffer)) |
941 | (setq default-directory dir)))))) | |
942 | ||
0acfb7ce | 943 | |
da205913 | 944 | (defvar find-name-arg) ; not autoloaded but defined in find-dired |
0acfb7ce KS |
945 | |
946 | ;;;###autoload | |
32a2cf25 | 947 | (defun rgrep (regexp &optional files dir confirm) |
6e7c574f | 948 | "Recursively grep for REGEXP in FILES in directory tree rooted at DIR. |
0acfb7ce KS |
949 | The search is limited to file names matching shell pattern FILES. |
950 | FILES may use abbreviations defined in `grep-files-aliases', e.g. | |
951 | entering `ch' is equivalent to `*.[ch]'. | |
952 | ||
6e7c574f KS |
953 | With \\[universal-argument] prefix, you can edit the constructed shell command line |
954 | before it is executed. | |
955 | With two \\[universal-argument] prefixes, directly edit and run `grep-find-command'. | |
0acfb7ce KS |
956 | |
957 | Collect output in a buffer. While find runs asynchronously, you | |
1571d112 JB |
958 | can use \\[next-error] (M-x next-error), or \\<grep-mode-map>\\[compile-goto-error] \ |
959 | in the grep output buffer, | |
960 | to go to the lines where grep found matches. | |
0acfb7ce KS |
961 | |
962 | This command shares argument histories with \\[lgrep] and \\[grep-find]." | |
963 | (interactive | |
964 | (progn | |
965 | (grep-compute-defaults) | |
966 | (cond | |
967 | ((and grep-find-command (equal current-prefix-arg '(16))) | |
968 | (list (read-from-minibuffer "Run: " grep-find-command | |
32a2cf25 | 969 | nil nil 'grep-find-history))) |
0acfb7ce | 970 | ((not grep-find-template) |
5a0c3f56 | 971 | (error "grep.el: No `grep-find-template' available")) |
0acfb7ce KS |
972 | (t (let* ((regexp (grep-read-regexp)) |
973 | (files (grep-read-files regexp)) | |
974 | (dir (read-directory-name "Base directory: " | |
32a2cf25 JL |
975 | nil default-directory t)) |
976 | (confirm (equal current-prefix-arg '(4)))) | |
977 | (list regexp files dir confirm)))))) | |
0acfb7ce | 978 | (when (and (stringp regexp) (> (length regexp) 0)) |
32a2cf25 JL |
979 | (unless (and dir (file-directory-p dir) (file-readable-p dir)) |
980 | (setq dir default-directory)) | |
0acfb7ce | 981 | (if (null files) |
02b404de JL |
982 | (if (not (string= regexp (if (consp grep-find-command) |
983 | (car grep-find-command) | |
984 | grep-find-command))) | |
12b16734 | 985 | (compilation-start regexp 'grep-mode)) |
c0b87c3f | 986 | (setq dir (file-name-as-directory (expand-file-name dir))) |
da205913 | 987 | (require 'find-dired) ; for `find-name-arg' |
c0b87c3f KS |
988 | (let ((command (grep-expand-template |
989 | grep-find-template | |
990 | regexp | |
84d797c9 | 991 | (concat (shell-quote-argument "(") |
34fac407 | 992 | " " find-name-arg " " |
c0b87c3f KS |
993 | (mapconcat #'shell-quote-argument |
994 | (split-string files) | |
ea7ac2eb | 995 | (concat " -o " find-name-arg " ")) |
84d797c9 KS |
996 | " " |
997 | (shell-quote-argument ")")) | |
7ae62430 JL |
998 | dir |
999 | (concat | |
0acfb7ce | 1000 | (and grep-find-ignored-directories |
453de99f OG |
1001 | (concat "-type d " |
1002 | (shell-quote-argument "(") | |
84d797c9 KS |
1003 | ;; we should use shell-quote-argument here |
1004 | " -path " | |
49405d0e | 1005 | (mapconcat |
7ae62430 JL |
1006 | #'(lambda (ignore) |
1007 | (cond ((stringp ignore) | |
1008 | (shell-quote-argument | |
1009 | (concat "*/" ignore))) | |
1010 | ((consp ignore) | |
1011 | (and (funcall (car ignore) dir) | |
1012 | (shell-quote-argument | |
1013 | (concat "*/" | |
1014 | (cdr ignore))))))) | |
1015 | grep-find-ignored-directories | |
1016 | " -o -path ") | |
1017 | " " | |
1018 | (shell-quote-argument ")") | |
1019 | " -prune -o ")) | |
1020 | (and grep-find-ignored-files | |
1021 | (concat (shell-quote-argument "(") | |
1022 | ;; we should use shell-quote-argument here | |
1023 | " -name " | |
1024 | (mapconcat | |
1025 | #'(lambda (ignore) | |
1026 | (cond ((stringp ignore) | |
1027 | (shell-quote-argument ignore)) | |
1028 | ((consp ignore) | |
1029 | (and (funcall (car ignore) dir) | |
1030 | (shell-quote-argument | |
1031 | (cdr ignore)))))) | |
1032 | grep-find-ignored-files | |
1033 | " -o -name ") | |
84d797c9 KS |
1034 | " " |
1035 | (shell-quote-argument ")") | |
7ae62430 | 1036 | " -prune -o ")))))) |
0acfb7ce | 1037 | (when command |
32a2cf25 | 1038 | (if confirm |
0acfb7ce KS |
1039 | (setq command |
1040 | (read-from-minibuffer "Confirm: " | |
1041 | command nil nil 'grep-find-history)) | |
c3e9438b | 1042 | (add-to-history 'grep-find-history command)) |
ac8cf6e6 | 1043 | (let ((default-directory dir)) |
c0b87c3f KS |
1044 | (compilation-start command 'grep-mode)) |
1045 | ;; Set default-directory if we started rgrep in the *grep* buffer. | |
1046 | (if (eq next-error-last-buffer (current-buffer)) | |
1047 | (setq default-directory dir))))))) | |
318e2976 | 1048 | |
a601d313 JL |
1049 | ;;;###autoload |
1050 | (defun zrgrep (regexp &optional files dir confirm grep-find-template) | |
1051 | "Recursively grep for REGEXP in gzipped FILES in tree rooted at DIR. | |
1052 | Like `rgrep' but uses `zgrep' for `grep-program', sets the default | |
1053 | file name to `*.gz', and sets `grep-highlight-matches' to `always'." | |
1054 | (interactive | |
ad6fc8f4 JL |
1055 | (progn |
1056 | ;; Compute standard default values. | |
a601d313 | 1057 | (grep-compute-defaults) |
ad6fc8f4 JL |
1058 | ;; Compute the default zrgrep command by running `grep-compute-defaults' |
1059 | ;; for grep program "zgrep", but not changing global values. | |
1060 | (let ((grep-program "zgrep") | |
1061 | ;; Don't change global values for variables computed | |
1062 | ;; by `grep-compute-defaults'. | |
1063 | (grep-find-template nil) | |
1064 | (grep-find-command nil) | |
1065 | (grep-host-defaults-alist nil) | |
1066 | ;; Use for `grep-read-files' | |
1067 | (grep-files-aliases '(("all" . "* .*") | |
1068 | ("gz" . "*.gz")))) | |
1069 | ;; Recompute defaults using let-bound values above. | |
1070 | (grep-compute-defaults) | |
1071 | (cond | |
1072 | ((and grep-find-command (equal current-prefix-arg '(16))) | |
1073 | (list (read-from-minibuffer "Run: " grep-find-command | |
1074 | nil nil 'grep-find-history))) | |
1075 | ((not grep-find-template) | |
1076 | (error "grep.el: No `grep-find-template' available")) | |
1077 | (t (let* ((regexp (grep-read-regexp)) | |
1078 | (files (grep-read-files regexp)) | |
1079 | (dir (read-directory-name "Base directory: " | |
1080 | nil default-directory t)) | |
1081 | (confirm (equal current-prefix-arg '(4)))) | |
1082 | (list regexp files dir confirm grep-find-template))))))) | |
a601d313 JL |
1083 | ;; Set `grep-highlight-matches' to `always' |
1084 | ;; since `zgrep' puts filters in the grep output. | |
1085 | (let ((grep-highlight-matches 'always)) | |
1086 | ;; `rgrep' uses the dynamically bound value `grep-find-template' | |
1087 | ;; from the argument `grep-find-template' whose value is computed | |
1088 | ;; in the `interactive' spec. | |
1089 | (rgrep regexp files dir confirm))) | |
1090 | ||
1091 | ;;;###autoload | |
1092 | (defalias 'rzgrep 'zrgrep) | |
318e2976 KS |
1093 | |
1094 | (provide 'grep) | |
1095 | ||
06626cf2 | 1096 | ;;; grep.el ends here |