Commit | Line | Data |
---|---|---|
60370d40 | 1 | ;;; em-unix.el --- UNIX command aliases |
affbf647 | 2 | |
3146b070 | 3 | ;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
114f9c96 | 4 | ;; 2008, 2009, 2010 Free Software Foundation, Inc. |
affbf647 | 5 | |
7de5b421 GM |
6 | ;; Author: John Wiegley <johnw@gnu.org> |
7 | ||
affbf647 GM |
8 | ;; This file is part of GNU Emacs. |
9 | ||
4ee57b2a | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
affbf647 | 11 | ;; it under the terms of the GNU General Public License as published by |
4ee57b2a GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
affbf647 GM |
14 | |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
4ee57b2a | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
affbf647 | 22 | |
dbba8a04 GM |
23 | ;;; Commentary: |
24 | ||
25 | ;; This file contains implementations of several UNIX command in Emacs | |
26 | ;; Lisp, for several reasons: | |
27 | ;; | |
28 | ;; 1) it makes them available on all platforms where the Lisp | |
29 | ;; functions used are available | |
30 | ;; | |
31 | ;; 2) it makes their functionality accessible and modified by the | |
32 | ;; Lisp programmer. | |
33 | ;; | |
34 | ;; 3) it allows Eshell to refrain from having to invoke external | |
35 | ;; processes for common operations. | |
36 | ||
37 | ;;; Code: | |
affbf647 | 38 | |
8a1b4446 | 39 | (require 'eshell) |
a09dc9bf MA |
40 | (require 'esh-opt) |
41 | (require 'pcomplete) | |
affbf647 | 42 | |
3146b070 GM |
43 | ;;;###autoload |
44 | (eshell-defgroup eshell-unix nil | |
affbf647 GM |
45 | "This module defines many of the more common UNIX utilities as |
46 | aliases implemented in Lisp. These include mv, ln, cp, rm, etc. If | |
47 | the user passes arguments which are too complex, or are unrecognized | |
48 | by the Lisp variant, the external version will be called (if | |
49 | available). The only reason not to use them would be because they are | |
50 | usually much slower. But in several cases their tight integration | |
51 | with Eshell makes them more versatile than their traditional cousins | |
52 | \(such as being able to use `kill' to kill Eshell background processes | |
53 | by name)." | |
54 | :tag "UNIX commands in Lisp" | |
55 | :group 'eshell-module) | |
56 | ||
affbf647 GM |
57 | (defcustom eshell-unix-load-hook '(eshell-unix-initialize) |
58 | "*A list of functions to run when `eshell-unix' is loaded." | |
59 | :type 'hook | |
60 | :group 'eshell-unix) | |
61 | ||
62 | (defcustom eshell-plain-grep-behavior nil | |
63 | "*If non-nil, standalone \"grep\" commands will behave normally. | |
64 | Standalone in this context means not redirected, and not on the | |
65 | receiving side of a command pipeline." | |
66 | :type 'boolean | |
67 | :group 'eshell-unix) | |
68 | ||
69 | (defcustom eshell-no-grep-available (not (eshell-search-path "grep")) | |
70 | "*If non-nil, no grep is available on the current machine." | |
71 | :type 'boolean | |
72 | :group 'eshell-unix) | |
73 | ||
74 | (defcustom eshell-plain-diff-behavior nil | |
75 | "*If non-nil, standalone \"diff\" commands will behave normally. | |
76 | Standalone in this context means not redirected, and not on the | |
77 | receiving side of a command pipeline." | |
78 | :type 'boolean | |
79 | :group 'eshell-unix) | |
80 | ||
a3269bc4 | 81 | (defcustom eshell-plain-locate-behavior (featurep 'xemacs) |
affbf647 GM |
82 | "*If non-nil, standalone \"locate\" commands will behave normally. |
83 | Standalone in this context means not redirected, and not on the | |
84 | receiving side of a command pipeline." | |
85 | :type 'boolean | |
86 | :group 'eshell-unix) | |
87 | ||
88 | (defcustom eshell-rm-removes-directories nil | |
89 | "*If non-nil, `rm' will remove directory entries. | |
90 | Otherwise, `rmdir' is required." | |
91 | :type 'boolean | |
92 | :group 'eshell-unix) | |
93 | ||
94 | (defcustom eshell-rm-interactive-query (= (user-uid) 0) | |
95 | "*If non-nil, `rm' will query before removing anything." | |
96 | :type 'boolean | |
97 | :group 'eshell-unix) | |
98 | ||
99 | (defcustom eshell-mv-interactive-query (= (user-uid) 0) | |
100 | "*If non-nil, `mv' will query before overwriting anything." | |
101 | :type 'boolean | |
102 | :group 'eshell-unix) | |
103 | ||
104 | (defcustom eshell-mv-overwrite-files t | |
105 | "*If non-nil, `mv' will overwrite files without warning." | |
106 | :type 'boolean | |
107 | :group 'eshell-unix) | |
108 | ||
109 | (defcustom eshell-cp-interactive-query (= (user-uid) 0) | |
110 | "*If non-nil, `cp' will query before overwriting anything." | |
111 | :type 'boolean | |
112 | :group 'eshell-unix) | |
113 | ||
114 | (defcustom eshell-cp-overwrite-files t | |
115 | "*If non-nil, `cp' will overwrite files without warning." | |
116 | :type 'boolean | |
117 | :group 'eshell-unix) | |
118 | ||
119 | (defcustom eshell-ln-interactive-query (= (user-uid) 0) | |
120 | "*If non-nil, `ln' will query before overwriting anything." | |
121 | :type 'boolean | |
122 | :group 'eshell-unix) | |
123 | ||
ca7aae91 | 124 | (defcustom eshell-ln-overwrite-files nil |
affbf647 GM |
125 | "*If non-nil, `ln' will overwrite files without warning." |
126 | :type 'boolean | |
127 | :group 'eshell-unix) | |
128 | ||
dace60cf JW |
129 | (defcustom eshell-default-target-is-dot nil |
130 | "*If non-nil, the default destination for cp, mv or ln is `.'." | |
131 | :type 'boolean | |
132 | :group 'eshell-unix) | |
133 | ||
8c6b1d83 JW |
134 | (defcustom eshell-du-prefer-over-ange nil |
135 | "*Use Eshell's du in ange-ftp remote directories. | |
1ef49fc6 | 136 | Otherwise, Emacs will attempt to use rsh to invoke du on the remote machine." |
8c6b1d83 JW |
137 | :type 'boolean |
138 | :group 'eshell-unix) | |
139 | ||
affbf647 GM |
140 | ;;; Functions: |
141 | ||
142 | (defun eshell-unix-initialize () | |
143 | "Initialize the UNIX support/emulation code." | |
affbf647 | 144 | (when (eshell-using-module 'eshell-cmpl) |
affbf647 | 145 | (add-hook 'pcomplete-try-first-hook |
dace60cf JW |
146 | 'eshell-complete-host-reference nil t)) |
147 | (make-local-variable 'eshell-complex-commands) | |
148 | (setq eshell-complex-commands | |
149 | (append '("grep" "egrep" "fgrep" "agrep" "glimpse" "locate" | |
3ba30eb8 | 150 | "cat" "time" "cp" "mv" "make" "du" "diff" "su" "sudo") |
dace60cf | 151 | eshell-complex-commands))) |
affbf647 GM |
152 | |
153 | (defalias 'eshell/date 'current-time-string) | |
154 | (defalias 'eshell/basename 'file-name-nondirectory) | |
155 | (defalias 'eshell/dirname 'file-name-directory) | |
156 | ||
1a32899d GM |
157 | (defvar interactive) |
158 | (defvar preview) | |
159 | (defvar recursive) | |
160 | (defvar verbose) | |
affbf647 GM |
161 | |
162 | (defun eshell/man (&rest args) | |
163 | "Invoke man, flattening the arguments appropriately." | |
164 | (funcall 'man (apply 'eshell-flatten-and-stringify args))) | |
165 | ||
127fd3c2 JW |
166 | (put 'eshell/man 'eshell-no-numeric-conversions t) |
167 | ||
4596901f | 168 | (defun eshell/info (&rest args) |
08011be5 | 169 | "Run the info command in-frame with the same behavior as command-line `info', ie: |
4596901f GM |
170 | 'info' => goes to top info window |
171 | 'info arg1' => IF arg1 is a file, then visits arg1 | |
172 | 'info arg1' => OTHERWISE goes to top info window and then menu item arg1 | |
173 | 'info arg1 arg2' => does action for arg1 (either visit-file or menu-item) and then menu item arg2 | |
174 | etc." | |
2f42c75f | 175 | (eval-and-compile (require 'info)) |
4596901f GM |
176 | (let ((file (cond |
177 | ((not (stringp (car args))) | |
178 | nil) | |
179 | ((file-exists-p (expand-file-name (car args))) | |
180 | (expand-file-name (car args))) | |
181 | ((file-exists-p (concat (expand-file-name (car args)) ".info")) | |
182 | (concat (expand-file-name (car args)) ".info"))))) | |
183 | ||
184 | ;; If the first arg is a file, then go to that file's Top node | |
185 | ;; Otherwise, go to the global directory | |
186 | (if file | |
187 | (progn | |
188 | (setq args (cdr args)) | |
189 | (Info-find-node file "Top")) | |
190 | (Info-directory)) | |
191 | ||
192 | ;; Treat all remaining args as menu references | |
193 | (while args | |
194 | (Info-menu (car args)) | |
195 | (setq args (cdr args))))) | |
196 | ||
affbf647 | 197 | (defun eshell-remove-entries (path files &optional top-level) |
dace60cf | 198 | "From PATH, remove all of the given FILES, perhaps interactively." |
affbf647 GM |
199 | (while files |
200 | (if (string-match "\\`\\.\\.?\\'" | |
201 | (file-name-nondirectory (car files))) | |
202 | (if top-level | |
203 | (eshell-error "rm: cannot remove `.' or `..'\n")) | |
204 | (if (and (file-directory-p (car files)) | |
205 | (not (file-symlink-p (car files)))) | |
206 | (let ((dir (file-name-as-directory (car files)))) | |
207 | (eshell-remove-entries dir | |
208 | (mapcar | |
209 | (function | |
210 | (lambda (file) | |
211 | (concat dir file))) | |
212 | (directory-files dir))) | |
213 | (if verbose | |
214 | (eshell-printn (format "rm: removing directory `%s'" | |
215 | (car files)))) | |
216 | (unless | |
217 | (or preview | |
218 | (and interactive | |
219 | (not (y-or-n-p | |
220 | (format "rm: remove directory `%s'? " | |
221 | (car files)))))) | |
222 | (eshell-funcalln 'delete-directory (car files)))) | |
223 | (if verbose | |
224 | (eshell-printn (format "rm: removing file `%s'" | |
225 | (car files)))) | |
226 | (unless (or preview | |
227 | (and interactive | |
228 | (not (y-or-n-p | |
229 | (format "rm: remove `%s'? " | |
230 | (car files)))))) | |
231 | (eshell-funcalln 'delete-file (car files))))) | |
232 | (setq files (cdr files)))) | |
233 | ||
234 | (defun eshell/rm (&rest args) | |
235 | "Implementation of rm in Lisp. | |
236 | This is implemented to call either `delete-file', `kill-buffer', | |
237 | `kill-process', or `unintern', depending on the nature of the | |
238 | argument." | |
239 | (setq args (eshell-flatten-list args)) | |
240 | (eshell-eval-using-options | |
241 | "rm" args | |
242 | '((?h "help" nil nil "show this usage screen") | |
243 | (?f "force" nil force-removal "force removal") | |
244 | (?i "interactive" nil interactive "prompt before any removal") | |
245 | (?n "preview" nil preview "don't change anything on disk") | |
246 | (?r "recursive" nil recursive | |
247 | "remove the contents of directories recursively") | |
248 | (?R nil nil recursive "(same)") | |
249 | (?v "verbose" nil verbose "explain what is being done") | |
250 | :preserve-args | |
251 | :external "rm" | |
252 | :show-usage | |
253 | :usage "[OPTION]... FILE... | |
254 | Remove (unlink) the FILE(s).") | |
255 | (unless interactive | |
256 | (setq interactive eshell-rm-interactive-query)) | |
257 | (if (and force-removal interactive) | |
258 | (setq interactive nil)) | |
259 | (while args | |
260 | (let ((entry (if (stringp (car args)) | |
261 | (directory-file-name (car args)) | |
262 | (if (numberp (car args)) | |
263 | (number-to-string (car args)) | |
264 | (car args))))) | |
265 | (cond | |
266 | ((bufferp entry) | |
267 | (if verbose | |
268 | (eshell-printn (format "rm: removing buffer `%s'" entry))) | |
269 | (unless (or preview | |
270 | (and interactive | |
271 | (not (y-or-n-p (format "rm: delete buffer `%s'? " | |
272 | entry))))) | |
273 | (eshell-funcalln 'kill-buffer entry))) | |
ca7aae91 | 274 | ((eshell-processp entry) |
affbf647 GM |
275 | (if verbose |
276 | (eshell-printn (format "rm: killing process `%s'" entry))) | |
277 | (unless (or preview | |
278 | (and interactive | |
279 | (not (y-or-n-p (format "rm: kill process `%s'? " | |
280 | entry))))) | |
281 | (eshell-funcalln 'kill-process entry))) | |
282 | ((symbolp entry) | |
283 | (if verbose | |
284 | (eshell-printn (format "rm: uninterning symbol `%s'" entry))) | |
285 | (unless | |
286 | (or preview | |
287 | (and interactive | |
288 | (not (y-or-n-p (format "rm: unintern symbol `%s'? " | |
289 | entry))))) | |
290 | (eshell-funcalln 'unintern entry))) | |
291 | ((stringp entry) | |
292 | (if (and (file-directory-p entry) | |
293 | (not (file-symlink-p entry))) | |
294 | (if (or recursive | |
295 | eshell-rm-removes-directories) | |
296 | (if (or preview | |
297 | (not interactive) | |
298 | (y-or-n-p | |
299 | (format "rm: descend into directory `%s'? " | |
300 | entry))) | |
301 | (eshell-remove-entries nil (list entry) t)) | |
302 | (eshell-error (format "rm: %s: is a directory\n" entry))) | |
303 | (eshell-remove-entries nil (list entry) t))))) | |
304 | (setq args (cdr args))) | |
305 | nil)) | |
306 | ||
127fd3c2 JW |
307 | (put 'eshell/rm 'eshell-no-numeric-conversions t) |
308 | ||
affbf647 GM |
309 | (defun eshell/mkdir (&rest args) |
310 | "Implementation of mkdir in Lisp." | |
311 | (eshell-eval-using-options | |
312 | "mkdir" args | |
313 | '((?h "help" nil nil "show this usage screen") | |
314 | :external "mkdir" | |
315 | :show-usage | |
316 | :usage "[OPTION] DIRECTORY... | |
317 | Create the DIRECTORY(ies), if they do not already exist.") | |
318 | (while args | |
319 | (eshell-funcalln 'make-directory (car args)) | |
320 | (setq args (cdr args))) | |
321 | nil)) | |
322 | ||
127fd3c2 JW |
323 | (put 'eshell/mkdir 'eshell-no-numeric-conversions t) |
324 | ||
affbf647 GM |
325 | (defun eshell/rmdir (&rest args) |
326 | "Implementation of rmdir in Lisp." | |
327 | (eshell-eval-using-options | |
328 | "rmdir" args | |
329 | '((?h "help" nil nil "show this usage screen") | |
330 | :external "rmdir" | |
331 | :show-usage | |
332 | :usage "[OPTION] DIRECTORY... | |
333 | Remove the DIRECTORY(ies), if they are empty.") | |
334 | (while args | |
335 | (eshell-funcalln 'delete-directory (car args)) | |
336 | (setq args (cdr args))) | |
337 | nil)) | |
338 | ||
127fd3c2 JW |
339 | (put 'eshell/rmdir 'eshell-no-numeric-conversions t) |
340 | ||
1a32899d GM |
341 | (defvar no-dereference) |
342 | (defvar preview) | |
343 | (defvar verbose) | |
affbf647 GM |
344 | |
345 | (defvar eshell-warn-dot-directories t) | |
346 | ||
347 | (defun eshell-shuffle-files (command action files target func deep &rest args) | |
348 | "Shuffle around some filesystem entries, using FUNC to do the work." | |
8c6b1d83 | 349 | (let ((attr-target (eshell-file-attributes target)) |
affbf647 GM |
350 | (is-dir (or (file-directory-p target) |
351 | (and preview (not eshell-warn-dot-directories)))) | |
352 | attr) | |
353 | (if (and (not preview) (not is-dir) | |
354 | (> (length files) 1)) | |
355 | (error "%s: when %s multiple files, last argument must be a directory" | |
356 | command action)) | |
357 | (while files | |
358 | (setcar files (directory-file-name (car files))) | |
359 | (cond | |
360 | ((string-match "\\`\\.\\.?\\'" | |
361 | (file-name-nondirectory (car files))) | |
362 | (if eshell-warn-dot-directories | |
363 | (eshell-error (format "%s: %s: omitting directory\n" | |
364 | command (car files))))) | |
365 | ((and attr-target | |
662cf9d7 EZ |
366 | (or (not (eshell-under-windows-p)) |
367 | (eq system-type 'ms-dos)) | |
8c6b1d83 JW |
368 | (setq attr (eshell-file-attributes (car files))) |
369 | (nth 10 attr-target) (nth 10 attr) | |
c3ea2deb EZ |
370 | ;; Use equal, not -, since the inode and the device could |
371 | ;; cons cells. | |
1f9581b6 | 372 | (equal (nth 10 attr-target) (nth 10 attr)) |
8c6b1d83 | 373 | (nth 11 attr-target) (nth 11 attr) |
c3ea2deb | 374 | (equal (nth 11 attr-target) (nth 11 attr))) |
affbf647 GM |
375 | (eshell-error (format "%s: `%s' and `%s' are the same file\n" |
376 | command (car files) target))) | |
377 | (t | |
378 | (let ((source (car files)) | |
379 | (target (if is-dir | |
380 | (expand-file-name | |
381 | (file-name-nondirectory (car files)) target) | |
382 | target)) | |
383 | link) | |
384 | (if (and (file-directory-p source) | |
385 | (or (not no-dereference) | |
386 | (not (file-symlink-p source))) | |
387 | (not (memq func '(make-symbolic-link | |
388 | add-name-to-file)))) | |
389 | (if (and (eq func 'copy-file) | |
390 | (not recursive)) | |
391 | (eshell-error (format "%s: %s: omitting directory\n" | |
392 | command (car files))) | |
393 | (let (eshell-warn-dot-directories) | |
394 | (if (and (not deep) | |
395 | (eq func 'rename-file) | |
c3ea2deb EZ |
396 | ;; Use equal, since the device might be a |
397 | ;; cons cell. | |
398 | (equal (nth 11 (eshell-file-attributes | |
399 | (file-name-directory | |
400 | (directory-file-name | |
401 | (expand-file-name source))))) | |
402 | (nth 11 (eshell-file-attributes | |
403 | (file-name-directory | |
404 | (directory-file-name | |
405 | (expand-file-name target))))))) | |
affbf647 GM |
406 | (apply 'eshell-funcalln func source target args) |
407 | (unless (file-directory-p target) | |
408 | (if verbose | |
409 | (eshell-printn | |
410 | (format "%s: making directory %s" | |
411 | command target))) | |
412 | (unless preview | |
413 | (eshell-funcalln 'make-directory target))) | |
ca7aae91 JW |
414 | (apply 'eshell-shuffle-files |
415 | command action | |
416 | (mapcar | |
417 | (function | |
418 | (lambda (file) | |
419 | (concat source "/" file))) | |
420 | (directory-files source)) | |
421 | target func t args) | |
affbf647 GM |
422 | (when (eq func 'rename-file) |
423 | (if verbose | |
424 | (eshell-printn | |
425 | (format "%s: deleting directory %s" | |
426 | command source))) | |
427 | (unless preview | |
428 | (eshell-funcalln 'delete-directory source)))))) | |
429 | (if verbose | |
430 | (eshell-printn (format "%s: %s -> %s" command | |
431 | source target))) | |
432 | (unless preview | |
433 | (if (and no-dereference | |
434 | (setq link (file-symlink-p source))) | |
435 | (progn | |
436 | (apply 'eshell-funcalln 'make-symbolic-link | |
437 | link target args) | |
438 | (if (eq func 'rename-file) | |
439 | (if (and (file-directory-p source) | |
440 | (not (file-symlink-p source))) | |
441 | (eshell-funcalln 'delete-directory source) | |
442 | (eshell-funcalln 'delete-file source)))) | |
443 | (apply 'eshell-funcalln func source target args))))))) | |
444 | (setq files (cdr files))))) | |
445 | ||
446 | (defun eshell-shorthand-tar-command (command args) | |
447 | "Rewrite `cp -v dir a.tar.gz' to `tar cvzf a.tar.gz dir'." | |
448 | (let* ((archive (car (last args))) | |
449 | (tar-args | |
450 | (cond ((string-match "z2" archive) "If") | |
451 | ((string-match "gz" archive) "zf") | |
452 | ((string-match "\\(az\\|Z\\)" archive) "Zf") | |
453 | (t "f")))) | |
454 | (if (file-exists-p archive) | |
455 | (setq tar-args (concat "u" tar-args)) | |
456 | (setq tar-args (concat "c" tar-args))) | |
457 | (if verbose | |
458 | (setq tar-args (concat "v" tar-args))) | |
459 | (if (equal command "mv") | |
460 | (setq tar-args (concat "--remove-files -" tar-args))) | |
461 | ;; truncate the archive name from the arguments | |
462 | (setcdr (last args 2) nil) | |
463 | (throw 'eshell-replace-command | |
464 | (eshell-parse-command | |
465 | (format "tar %s %s" tar-args archive) args)))) | |
466 | ||
467 | ;; this is to avoid duplicating code... | |
dace60cf JW |
468 | (defmacro eshell-mvcpln-template (command action func query-var |
469 | force-var &optional preserve) | |
470 | `(let ((len (length args))) | |
471 | (if (or (= len 0) | |
472 | (and (= len 1) (null eshell-default-target-is-dot))) | |
473 | (error "%s: missing destination file or directory" ,command)) | |
474 | (if (= len 1) | |
475 | (nconc args '("."))) | |
476 | (setq args (eshell-stringify-list (eshell-flatten-list args))) | |
477 | (if (and ,(not (equal command "ln")) | |
478 | (string-match eshell-tar-regexp (car (last args))) | |
479 | (or (> (length args) 2) | |
480 | (and (file-directory-p (car args)) | |
481 | (or (not no-dereference) | |
482 | (not (file-symlink-p (car args))))))) | |
483 | (eshell-shorthand-tar-command ,command args) | |
484 | (let ((target (car (last args))) | |
485 | ange-cache) | |
486 | (setcdr (last args 2) nil) | |
487 | (eshell-shuffle-files | |
488 | ,command ,action args target ,func nil | |
489 | ,@(append | |
490 | `((if (and (or interactive | |
491 | ,query-var) | |
492 | (not force)) | |
493 | 1 (or force ,force-var))) | |
494 | (if preserve | |
495 | (list preserve))))) | |
496 | nil))) | |
affbf647 GM |
497 | |
498 | (defun eshell/mv (&rest args) | |
499 | "Implementation of mv in Lisp." | |
500 | (eshell-eval-using-options | |
501 | "mv" args | |
502 | '((?f "force" nil force | |
503 | "remove existing destinations, never prompt") | |
504 | (?i "interactive" nil interactive | |
505 | "request confirmation if target already exists") | |
506 | (?n "preview" nil preview | |
507 | "don't change anything on disk") | |
508 | (?v "verbose" nil verbose | |
509 | "explain what is being done") | |
510 | (nil "help" nil nil "show this usage screen") | |
dace60cf | 511 | :preserve-args |
affbf647 GM |
512 | :external "mv" |
513 | :show-usage | |
514 | :usage "[OPTION]... SOURCE DEST | |
515 | or: mv [OPTION]... SOURCE... DIRECTORY | |
516 | Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY. | |
517 | \[OPTION] DIRECTORY...") | |
518 | (let ((no-dereference t)) | |
dace60cf JW |
519 | (eshell-mvcpln-template "mv" "moving" 'rename-file |
520 | eshell-mv-interactive-query | |
521 | eshell-mv-overwrite-files)))) | |
affbf647 | 522 | |
127fd3c2 JW |
523 | (put 'eshell/mv 'eshell-no-numeric-conversions t) |
524 | ||
affbf647 GM |
525 | (defun eshell/cp (&rest args) |
526 | "Implementation of cp in Lisp." | |
527 | (eshell-eval-using-options | |
528 | "cp" args | |
529 | '((?a "archive" nil archive | |
530 | "same as -dpR") | |
531 | (?d "no-dereference" nil no-dereference | |
532 | "preserve links") | |
533 | (?f "force" nil force | |
534 | "remove existing destinations, never prompt") | |
535 | (?i "interactive" nil interactive | |
536 | "request confirmation if target already exists") | |
537 | (?n "preview" nil preview | |
538 | "don't change anything on disk") | |
539 | (?p "preserve" nil preserve | |
540 | "preserve file attributes if possible") | |
541 | (?R "recursive" nil recursive | |
542 | "copy directories recursively") | |
543 | (?v "verbose" nil verbose | |
544 | "explain what is being done") | |
545 | (nil "help" nil nil "show this usage screen") | |
dace60cf | 546 | :preserve-args |
affbf647 GM |
547 | :external "cp" |
548 | :show-usage | |
549 | :usage "[OPTION]... SOURCE DEST | |
550 | or: cp [OPTION]... SOURCE... DIRECTORY | |
551 | Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.") | |
552 | (if archive | |
553 | (setq preserve t no-dereference t recursive t)) | |
dace60cf JW |
554 | (eshell-mvcpln-template "cp" "copying" 'copy-file |
555 | eshell-cp-interactive-query | |
556 | eshell-cp-overwrite-files preserve))) | |
affbf647 | 557 | |
127fd3c2 JW |
558 | (put 'eshell/cp 'eshell-no-numeric-conversions t) |
559 | ||
affbf647 GM |
560 | (defun eshell/ln (&rest args) |
561 | "Implementation of ln in Lisp." | |
562 | (eshell-eval-using-options | |
563 | "ln" args | |
564 | '((?h "help" nil nil "show this usage screen") | |
565 | (?s "symbolic" nil symbolic | |
566 | "make symbolic links instead of hard links") | |
dace60cf JW |
567 | (?i "interactive" nil interactive |
568 | "request confirmation if target already exists") | |
affbf647 GM |
569 | (?f "force" nil force "remove existing destinations, never prompt") |
570 | (?n "preview" nil preview | |
571 | "don't change anything on disk") | |
572 | (?v "verbose" nil verbose "explain what is being done") | |
dace60cf | 573 | :preserve-args |
affbf647 GM |
574 | :external "ln" |
575 | :show-usage | |
576 | :usage "[OPTION]... TARGET [LINK_NAME] | |
577 | or: ln [OPTION]... TARGET... DIRECTORY | |
578 | Create a link to the specified TARGET with optional LINK_NAME. If there is | |
579 | more than one TARGET, the last argument must be a directory; create links | |
580 | in DIRECTORY to each TARGET. Create hard links by default, symbolic links | |
581 | with '--symbolic'. When creating hard links, each TARGET must exist.") | |
dace60cf JW |
582 | (let ((no-dereference t)) |
583 | (eshell-mvcpln-template "ln" "linking" | |
584 | (if symbolic | |
585 | 'make-symbolic-link | |
586 | 'add-name-to-file) | |
587 | eshell-ln-interactive-query | |
588 | eshell-ln-overwrite-files)))) | |
affbf647 | 589 | |
127fd3c2 JW |
590 | (put 'eshell/ln 'eshell-no-numeric-conversions t) |
591 | ||
affbf647 | 592 | (defun eshell/cat (&rest args) |
8c6b1d83 JW |
593 | "Implementation of cat in Lisp. |
594 | If in a pipeline, or the file is not a regular file, directory or | |
595 | symlink, then revert to the system's definition of cat." | |
dace60cf | 596 | (setq args (eshell-stringify-list (eshell-flatten-list args))) |
8c6b1d83 JW |
597 | (if (or eshell-in-pipeline-p |
598 | (catch 'special | |
599 | (eshell-for arg args | |
9f89e098 JW |
600 | (unless (or (and (stringp arg) |
601 | (> (length arg) 0) | |
602 | (eq (aref arg 0) ?-)) | |
603 | (let ((attrs (eshell-file-attributes arg))) | |
604 | (and attrs (memq (aref (nth 8 attrs) 0) | |
605 | '(?d ?l ?-))))) | |
8c6b1d83 JW |
606 | (throw 'special t))))) |
607 | (let ((ext-cat (eshell-search-path "cat"))) | |
608 | (if ext-cat | |
609 | (throw 'eshell-replace-command | |
610 | (eshell-parse-command ext-cat args)) | |
611 | (if eshell-in-pipeline-p | |
612 | (error "Eshell's `cat' does not work in pipelines") | |
613 | (error "Eshell's `cat' cannot display one of the files given")))) | |
affbf647 GM |
614 | (eshell-init-print-buffer) |
615 | (eshell-eval-using-options | |
616 | "cat" args | |
617 | '((?h "help" nil nil "show this usage screen") | |
618 | :external "cat" | |
619 | :show-usage | |
620 | :usage "[OPTION] FILE... | |
621 | Concatenate FILE(s), or standard input, to standard output.") | |
622 | (eshell-for file args | |
623 | (if (string= file "-") | |
624 | (throw 'eshell-external | |
625 | (eshell-external-command "cat" args)))) | |
626 | (let ((curbuf (current-buffer))) | |
627 | (eshell-for file args | |
628 | (with-temp-buffer | |
629 | (insert-file-contents file) | |
630 | (goto-char (point-min)) | |
631 | (while (not (eobp)) | |
632 | (let ((str (buffer-substring | |
633 | (point) (min (1+ (line-end-position)) | |
634 | (point-max))))) | |
635 | (with-current-buffer curbuf | |
636 | (eshell-buffered-print str))) | |
637 | (forward-line))))) | |
638 | (eshell-flush) | |
639 | ;; if the file does not end in a newline, do not emit one | |
640 | (setq eshell-ensure-newline-p nil)))) | |
641 | ||
127fd3c2 JW |
642 | (put 'eshell/cat 'eshell-no-numeric-conversions t) |
643 | ||
affbf647 GM |
644 | ;; special front-end functions for compilation-mode buffers |
645 | ||
646 | (defun eshell/make (&rest args) | |
647 | "Use `compile' to do background makes." | |
648 | (if (and eshell-current-subjob-p | |
649 | (eshell-interactive-output-p)) | |
650 | (let ((compilation-process-setup-function | |
651 | (list 'lambda nil | |
652 | (list 'setq 'process-environment | |
653 | (list 'quote (eshell-copy-environment)))))) | |
654 | (compile (concat "make " (eshell-flatten-and-stringify args)))) | |
655 | (throw 'eshell-replace-command | |
dace60cf JW |
656 | (eshell-parse-command "*make" (eshell-stringify-list |
657 | (eshell-flatten-list args)))))) | |
affbf647 | 658 | |
127fd3c2 JW |
659 | (put 'eshell/make 'eshell-no-numeric-conversions t) |
660 | ||
affbf647 GM |
661 | (defun eshell-occur-mode-goto-occurrence () |
662 | "Go to the occurrence the current line describes." | |
663 | (interactive) | |
664 | (let ((pos (occur-mode-find-occurrence))) | |
665 | (pop-to-buffer (marker-buffer pos)) | |
666 | (goto-char (marker-position pos)))) | |
667 | ||
668 | (defun eshell-occur-mode-mouse-goto (event) | |
669 | "In Occur mode, go to the occurrence whose line you click on." | |
670 | (interactive "e") | |
2f552813 | 671 | (let (pos) |
937e6a56 | 672 | (with-current-buffer (window-buffer (posn-window (event-end event))) |
affbf647 GM |
673 | (save-excursion |
674 | (goto-char (posn-point (event-end event))) | |
2f552813 | 675 | (setq pos (occur-mode-find-occurrence)))) |
affbf647 GM |
676 | (pop-to-buffer (marker-buffer pos)) |
677 | (goto-char (marker-position pos)))) | |
678 | ||
679 | (defun eshell-poor-mans-grep (args) | |
680 | "A poor version of grep that opens every file and uses `occur'. | |
681 | This eats up memory, since it leaves the buffers open (to speed future | |
682 | searches), and it's very slow. But, if your system has no grep | |
683 | available..." | |
684 | (save-selected-window | |
685 | (let ((default-dir default-directory)) | |
686 | (with-current-buffer (get-buffer-create "*grep*") | |
687 | (let ((inhibit-read-only t) | |
688 | (default-directory default-dir)) | |
689 | (erase-buffer) | |
690 | (occur-mode) | |
dace60cf JW |
691 | (let ((files (eshell-stringify-list |
692 | (eshell-flatten-list (cdr args)))) | |
affbf647 GM |
693 | (inhibit-redisplay t) |
694 | string) | |
695 | (when (car args) | |
696 | (if (get-buffer "*Occur*") | |
697 | (kill-buffer (get-buffer "*Occur*"))) | |
698 | (setq string nil) | |
699 | (while files | |
700 | (with-current-buffer (find-file-noselect (car files)) | |
701 | (save-excursion | |
702 | (ignore-errors | |
703 | (occur (car args)))) | |
704 | (if (get-buffer "*Occur*") | |
705 | (with-current-buffer (get-buffer "*Occur*") | |
706 | (setq string (buffer-string)) | |
707 | (kill-buffer (current-buffer))))) | |
708 | (if string (insert string)) | |
709 | (setq string nil | |
710 | files (cdr files))))) | |
affbf647 GM |
711 | (local-set-key [mouse-2] 'eshell-occur-mode-mouse-goto) |
712 | (local-set-key [(control ?c) (control ?c)] | |
713 | 'eshell-occur-mode-goto-occurrence) | |
714 | (local-set-key [(control ?m)] | |
715 | 'eshell-occur-mode-goto-occurrence) | |
716 | (local-set-key [return] 'eshell-occur-mode-goto-occurrence) | |
717 | (pop-to-buffer (current-buffer) t) | |
718 | (goto-char (point-min)) | |
719 | (resize-temp-buffer-window)))))) | |
720 | ||
721 | (defun eshell-grep (command args &optional maybe-use-occur) | |
722 | "Generic service function for the various grep aliases. | |
723 | It calls Emacs' grep utility if the command is not redirecting output, | |
724 | and if it's not part of a command pipeline. Otherwise, it calls the | |
725 | external command." | |
726 | (if (and maybe-use-occur eshell-no-grep-available) | |
727 | (eshell-poor-mans-grep args) | |
728 | (if (or eshell-plain-grep-behavior | |
729 | (not (and (eshell-interactive-output-p) | |
730 | (not eshell-in-pipeline-p) | |
731 | (not eshell-in-subcommand-p)))) | |
732 | (throw 'eshell-replace-command | |
ca7aae91 | 733 | (eshell-parse-command (concat "*" command) |
dace60cf JW |
734 | (eshell-stringify-list |
735 | (eshell-flatten-list args)))) | |
fcb5aa97 | 736 | (let* ((args (mapconcat 'identity |
affbf647 | 737 | (mapcar 'shell-quote-argument |
dace60cf JW |
738 | (eshell-stringify-list |
739 | (eshell-flatten-list args))) | |
affbf647 GM |
740 | " ")) |
741 | (cmd (progn | |
742 | (set-text-properties 0 (length args) | |
743 | '(invisible t) args) | |
744 | (format "%s -n %s" command args))) | |
745 | compilation-scroll-output) | |
746 | (grep cmd))))) | |
747 | ||
748 | (defun eshell/grep (&rest args) | |
749 | "Use Emacs grep facility instead of calling external grep." | |
750 | (eshell-grep "grep" args t)) | |
751 | ||
752 | (defun eshell/egrep (&rest args) | |
753 | "Use Emacs grep facility instead of calling external egrep." | |
754 | (eshell-grep "egrep" args t)) | |
755 | ||
756 | (defun eshell/fgrep (&rest args) | |
757 | "Use Emacs grep facility instead of calling external fgrep." | |
758 | (eshell-grep "fgrep" args t)) | |
759 | ||
760 | (defun eshell/agrep (&rest args) | |
761 | "Use Emacs grep facility instead of calling external agrep." | |
762 | (eshell-grep "agrep" args)) | |
763 | ||
764 | (defun eshell/glimpse (&rest args) | |
765 | "Use Emacs grep facility instead of calling external glimpse." | |
766 | (let (null-device) | |
767 | (eshell-grep "glimpse" (append '("-z" "-y") args)))) | |
768 | ||
769 | ;; completions rules for some common UNIX commands | |
770 | ||
771 | (defsubst eshell-complete-hostname () | |
772 | "Complete a command that wants a hostname for an argument." | |
773 | (pcomplete-here (eshell-read-host-names))) | |
774 | ||
775 | (defun eshell-complete-host-reference () | |
776 | "If there is a host reference, complete it." | |
777 | (let ((arg (pcomplete-actual-arg)) | |
778 | index) | |
779 | (when (setq index (string-match "@[a-z.]*\\'" arg)) | |
780 | (setq pcomplete-stub (substring arg (1+ index)) | |
781 | pcomplete-last-completion-raw t) | |
782 | (throw 'pcomplete-completions (eshell-read-host-names))))) | |
783 | ||
784 | (defalias 'pcomplete/ftp 'eshell-complete-hostname) | |
785 | (defalias 'pcomplete/ncftp 'eshell-complete-hostname) | |
786 | (defalias 'pcomplete/ping 'eshell-complete-hostname) | |
787 | (defalias 'pcomplete/rlogin 'eshell-complete-hostname) | |
788 | ||
789 | (defun pcomplete/telnet () | |
790 | (require 'pcmpl-unix) | |
791 | (pcomplete-opt "xl(pcmpl-unix-user-names)") | |
792 | (eshell-complete-hostname)) | |
793 | ||
794 | (defun pcomplete/rsh () | |
795 | "Complete `rsh', which, after the user and hostname, is like xargs." | |
796 | (require 'pcmpl-unix) | |
797 | (pcomplete-opt "l(pcmpl-unix-user-names)") | |
798 | (eshell-complete-hostname) | |
799 | (pcomplete-here (funcall pcomplete-command-completion-function)) | |
800 | (funcall (or (pcomplete-find-completion-function (pcomplete-arg 1)) | |
801 | pcomplete-default-completion-function))) | |
802 | ||
803 | (defalias 'pcomplete/ssh 'pcomplete/rsh) | |
804 | ||
1a32899d GM |
805 | (defvar block-size) |
806 | (defvar by-bytes) | |
807 | (defvar dereference-links) | |
808 | (defvar grand-total) | |
809 | (defvar human-readable) | |
810 | (defvar max-depth) | |
811 | (defvar only-one-filesystem) | |
812 | (defvar show-all) | |
affbf647 GM |
813 | |
814 | (defsubst eshell-du-size-string (size) | |
815 | (let* ((str (eshell-printable-size size human-readable block-size t)) | |
816 | (len (length str))) | |
817 | (concat str (if (< len 8) | |
818 | (make-string (- 8 len) ? ))))) | |
819 | ||
820 | (defun eshell-du-sum-directory (path depth) | |
821 | "Summarize PATH, and its member directories." | |
822 | (let ((entries (eshell-directory-files-and-attributes path)) | |
823 | (size 0.0)) | |
824 | (while entries | |
825 | (unless (string-match "\\`\\.\\.?\\'" (caar entries)) | |
3e020e02 | 826 | (let* ((entry (concat path "/" |
affbf647 GM |
827 | (caar entries))) |
828 | (symlink (and (stringp (cadr (car entries))) | |
829 | (cadr (car entries))))) | |
830 | (unless (or (and symlink (not dereference-links)) | |
831 | (and only-one-filesystem | |
ca7aae91 JW |
832 | (/= only-one-filesystem |
833 | (nth 12 (car entries))))) | |
affbf647 GM |
834 | (if symlink |
835 | (setq entry symlink)) | |
836 | (setq size | |
837 | (+ size | |
838 | (if (eq t (cadr (car entries))) | |
839 | (eshell-du-sum-directory entry (1+ depth)) | |
840 | (let ((file-size (nth 8 (car entries)))) | |
841 | (prog1 | |
842 | file-size | |
843 | (if show-all | |
844 | (eshell-print | |
845 | (concat (eshell-du-size-string file-size) | |
846 | entry "\n"))))))))))) | |
847 | (setq entries (cdr entries))) | |
848 | (if (or (not max-depth) | |
849 | (= depth max-depth) | |
850 | (= depth 0)) | |
851 | (eshell-print (concat (eshell-du-size-string size) | |
852 | (directory-file-name path) "\n"))) | |
853 | size)) | |
854 | ||
855 | (defun eshell/du (&rest args) | |
ca7aae91 | 856 | "Implementation of \"du\" in Lisp, passing ARGS." |
8c6b1d83 | 857 | (setq args (if args |
dace60cf | 858 | (eshell-stringify-list (eshell-flatten-list args)) |
8c6b1d83 JW |
859 | '("."))) |
860 | (let ((ext-du (eshell-search-path "du"))) | |
861 | (if (and ext-du | |
862 | (not (catch 'have-ange-path | |
863 | (eshell-for arg args | |
605a20a9 MA |
864 | (if (string-equal |
865 | (file-remote-p (expand-file-name arg) 'method) "ftp") | |
8c6b1d83 JW |
866 | (throw 'have-ange-path t)))))) |
867 | (throw 'eshell-replace-command | |
868 | (eshell-parse-command ext-du args)) | |
869 | (eshell-eval-using-options | |
870 | "du" args | |
871 | '((?a "all" nil show-all | |
872 | "write counts for all files, not just directories") | |
873 | (nil "block-size" t block-size | |
874 | "use SIZE-byte blocks (i.e., --block-size SIZE)") | |
875 | (?b "bytes" nil by-bytes | |
876 | "print size in bytes") | |
877 | (?c "total" nil grand-total | |
878 | "produce a grand total") | |
879 | (?d "max-depth" t max-depth | |
880 | "display data only this many levels of data") | |
881 | (?h "human-readable" 1024 human-readable | |
882 | "print sizes in human readable format") | |
883 | (?H "is" 1000 human-readable | |
884 | "likewise, but use powers of 1000 not 1024") | |
885 | (?k "kilobytes" 1024 block-size | |
886 | "like --block-size 1024") | |
887 | (?L "dereference" nil dereference-links | |
888 | "dereference all symbolic links") | |
889 | (?m "megabytes" 1048576 block-size | |
890 | "like --block-size 1048576") | |
891 | (?s "summarize" 0 max-depth | |
892 | "display only a total for each argument") | |
893 | (?x "one-file-system" nil only-one-filesystem | |
894 | "skip directories on different filesystems") | |
895 | (nil "help" nil nil | |
896 | "show this usage screen") | |
897 | :external "du" | |
898 | :usage "[OPTION]... FILE... | |
affbf647 | 899 | Summarize disk usage of each FILE, recursively for directories.") |
8c6b1d83 JW |
900 | (unless by-bytes |
901 | (setq block-size (or block-size 1024))) | |
902 | (if (and max-depth (stringp max-depth)) | |
6b0e3e4d | 903 | (setq max-depth (string-to-number max-depth))) |
8c6b1d83 JW |
904 | ;; filesystem support means nothing under Windows |
905 | (if (eshell-under-windows-p) | |
906 | (setq only-one-filesystem nil)) | |
907 | (let ((size 0.0) ange-cache) | |
908 | (while args | |
909 | (if only-one-filesystem | |
910 | (setq only-one-filesystem | |
911 | (nth 11 (eshell-file-attributes | |
912 | (file-name-as-directory (car args)))))) | |
913 | (setq size (+ size (eshell-du-sum-directory | |
914 | (directory-file-name (car args)) 0))) | |
915 | (setq args (cdr args))) | |
916 | (if grand-total | |
917 | (eshell-print (concat (eshell-du-size-string size) | |
918 | "total\n")))))))) | |
affbf647 GM |
919 | |
920 | (defvar eshell-time-start nil) | |
921 | ||
922 | (defun eshell-show-elapsed-time () | |
923 | (let ((elapsed (format "%.3f secs\n" | |
924 | (- (eshell-time-to-seconds (current-time)) | |
925 | eshell-time-start)))) | |
926 | (set-text-properties 0 (length elapsed) '(face bold) elapsed) | |
927 | (eshell-interactive-print elapsed)) | |
928 | (remove-hook 'eshell-post-command-hook 'eshell-show-elapsed-time t)) | |
929 | ||
930 | (defun eshell/time (&rest args) | |
931 | "Implementation of \"time\" in Lisp." | |
932 | (let ((time-args (copy-alist args)) | |
933 | (continue t) | |
934 | last-arg) | |
935 | (while (and continue args) | |
936 | (if (not (string-match "^-" (car args))) | |
937 | (progn | |
938 | (if last-arg | |
939 | (setcdr last-arg nil) | |
940 | (setq args '(""))) | |
941 | (setq continue nil)) | |
942 | (setq last-arg args | |
943 | args (cdr args)))) | |
944 | (eshell-eval-using-options | |
945 | "time" args | |
946 | '((?h "help" nil nil "show this usage screen") | |
947 | :external "time" | |
948 | :show-usage | |
949 | :usage "COMMAND... | |
950 | Show wall-clock time elapsed during execution of COMMAND.") | |
951 | (setq eshell-time-start (eshell-time-to-seconds (current-time))) | |
952 | (add-hook 'eshell-post-command-hook 'eshell-show-elapsed-time nil t) | |
953 | ;; after setting | |
954 | (throw 'eshell-replace-command | |
1ffb5a86 GM |
955 | (eshell-parse-command (car time-args) |
956 | ;;; http://lists.gnu.org/archive/html/bug-gnu-emacs/2007-08/msg00205.html | |
957 | (eshell-stringify-list | |
958 | (eshell-flatten-list (cdr time-args)))))))) | |
affbf647 | 959 | |
e7b538cd MA |
960 | (defun eshell/whoami (&rest args) |
961 | "Make \"whoami\" Tramp aware." | |
962 | (or (file-remote-p default-directory 'user) (user-login-name))) | |
affbf647 GM |
963 | |
964 | (defvar eshell-diff-window-config nil) | |
965 | ||
966 | (defun eshell-diff-quit () | |
967 | "Restore the window configuration previous to diff'ing." | |
968 | (interactive) | |
969 | (if eshell-diff-window-config | |
970 | (set-window-configuration eshell-diff-window-config))) | |
971 | ||
3ced2780 JB |
972 | (defun nil-blank-string (string) |
973 | "Return STRING, or nil if STRING contains only non-blank characters." | |
4990598e | 974 | (cond |
3ced2780 JB |
975 | ((string-match "[^[:blank:]]" string) string) |
976 | (nil))) | |
4990598e | 977 | |
affbf647 GM |
978 | (defun eshell/diff (&rest args) |
979 | "Alias \"diff\" to call Emacs `diff' function." | |
dace60cf | 980 | (let ((orig-args (eshell-stringify-list (eshell-flatten-list args)))) |
ca7aae91 JW |
981 | (if (or eshell-plain-diff-behavior |
982 | (not (and (eshell-interactive-output-p) | |
983 | (not eshell-in-pipeline-p) | |
984 | (not eshell-in-subcommand-p)))) | |
985 | (throw 'eshell-replace-command | |
986 | (eshell-parse-command "*diff" orig-args)) | |
655e9ea9 | 987 | (setq args (copy-sequence orig-args)) |
ca7aae91 JW |
988 | (if (< (length args) 2) |
989 | (throw 'eshell-replace-command | |
990 | (eshell-parse-command "*diff" orig-args))) | |
991 | (let ((old (car (last args 2))) | |
992 | (new (car (last args))) | |
993 | (config (current-window-configuration))) | |
994 | (if (= (length args) 2) | |
995 | (setq args nil) | |
996 | (setcdr (last args 3) nil)) | |
997 | (with-current-buffer | |
998 | (condition-case err | |
4990598e JW |
999 | (diff old new |
1000 | (nil-blank-string (eshell-flatten-and-stringify args))) | |
ca7aae91 JW |
1001 | (error |
1002 | (throw 'eshell-replace-command | |
1003 | (eshell-parse-command "*diff" orig-args)))) | |
1004 | (when (fboundp 'diff-mode) | |
ef59cfc6 JW |
1005 | (make-local-variable 'compilation-finish-functions) |
1006 | (add-hook | |
1007 | 'compilation-finish-functions | |
1008 | `(lambda (buff msg) | |
1009 | (with-current-buffer buff | |
1010 | (diff-mode) | |
1011 | (set (make-local-variable 'eshell-diff-window-config) | |
1012 | ,config) | |
1013 | (local-set-key [?q] 'eshell-diff-quit) | |
1014 | (if (fboundp 'turn-on-font-lock-if-enabled) | |
1015 | (turn-on-font-lock-if-enabled)) | |
1016 | (goto-char (point-min)))))) | |
1017 | (pop-to-buffer (current-buffer)))))) | |
1018 | nil) | |
affbf647 | 1019 | |
127fd3c2 JW |
1020 | (put 'eshell/diff 'eshell-no-numeric-conversions t) |
1021 | ||
affbf647 GM |
1022 | (defun eshell/locate (&rest args) |
1023 | "Alias \"locate\" to call Emacs `locate' function." | |
1024 | (if (or eshell-plain-locate-behavior | |
1025 | (not (and (eshell-interactive-output-p) | |
1026 | (not eshell-in-pipeline-p) | |
1027 | (not eshell-in-subcommand-p))) | |
1028 | (and (stringp (car args)) | |
1029 | (string-match "^-" (car args)))) | |
1030 | (throw 'eshell-replace-command | |
dace60cf JW |
1031 | (eshell-parse-command "*locate" (eshell-stringify-list |
1032 | (eshell-flatten-list args)))) | |
affbf647 GM |
1033 | (save-selected-window |
1034 | (let ((locate-history-list (list (car args)))) | |
1035 | (locate-with-filter (car args) (cadr args)))))) | |
1036 | ||
127fd3c2 JW |
1037 | (put 'eshell/locate 'eshell-no-numeric-conversions t) |
1038 | ||
affbf647 GM |
1039 | (defun eshell/occur (&rest args) |
1040 | "Alias \"occur\" to call Emacs `occur' function." | |
1041 | (let ((inhibit-read-only t)) | |
219227ea JW |
1042 | (if (> (length args) 2) |
1043 | (error "usage: occur: (REGEXP &optional NLINES)") | |
1044 | (apply 'occur args)))) | |
affbf647 | 1045 | |
127fd3c2 JW |
1046 | (put 'eshell/occur 'eshell-no-numeric-conversions t) |
1047 | ||
3ba30eb8 MA |
1048 | ;; Pacify the byte-compiler. |
1049 | (defvar tramp-default-proxies-alist) | |
1050 | ||
1051 | (defun eshell/su (&rest args) | |
1052 | "Alias \"su\" to call Tramp." | |
a09dc9bf | 1053 | (require 'tramp) |
e7b538cd | 1054 | (setq args (eshell-stringify-list (eshell-flatten-list args))) |
a09dc9bf | 1055 | (let ((orig-args (copy-tree args))) |
3ba30eb8 | 1056 | (eshell-eval-using-options |
a09dc9bf | 1057 | "su" args |
3ba30eb8 MA |
1058 | '((?h "help" nil nil "show this usage screen") |
1059 | (?l "login" nil login "provide a login environment") | |
1060 | (? nil nil login "provide a login environment") | |
1061 | :usage "[- | -l | --login] [USER] | |
1062 | Become another USER during a login session.") | |
1063 | (throw 'eshell-replace-command | |
1064 | (let ((user "root") | |
1065 | (host (or (file-remote-p default-directory 'host) | |
1066 | "localhost")) | |
1067 | (dir (or (file-remote-p default-directory 'localname) | |
a09dc9bf | 1068 | (expand-file-name default-directory)))) |
e7b538cd MA |
1069 | (eshell-for arg args |
1070 | (if (string-equal arg "-") (setq login t) (setq user arg))) | |
a09dc9bf MA |
1071 | ;; `eshell-eval-using-options' does not handle "-". |
1072 | (if (member "-" orig-args) (setq login t)) | |
e7b538cd | 1073 | (if login (setq dir "~/")) |
3ba30eb8 | 1074 | (if (and (file-remote-p default-directory) |
a09dc9bf MA |
1075 | (or |
1076 | (not (string-equal | |
1077 | "su" (file-remote-p default-directory 'method))) | |
1078 | (not (string-equal | |
1079 | user (file-remote-p default-directory 'user))))) | |
3ba30eb8 MA |
1080 | (add-to-list |
1081 | 'tramp-default-proxies-alist | |
1082 | (list host user (file-remote-p default-directory)))) | |
1083 | (eshell-parse-command | |
e7b538cd | 1084 | "cd" (list (format "/su:%s@%s:%s" user host dir)))))))) |
3ba30eb8 MA |
1085 | |
1086 | (put 'eshell/su 'eshell-no-numeric-conversions t) | |
1087 | ||
1088 | (defun eshell/sudo (&rest args) | |
1089 | "Alias \"sudo\" to call Tramp." | |
a09dc9bf | 1090 | (require 'tramp) |
e7b538cd | 1091 | (setq args (eshell-stringify-list (eshell-flatten-list args))) |
a09dc9bf | 1092 | (let ((orig-args (copy-tree args))) |
3ba30eb8 MA |
1093 | (eshell-eval-using-options |
1094 | "sudo" args | |
1095 | '((?h "help" nil nil "show this usage screen") | |
1096 | (?u "user" t user "execute a command as another USER") | |
1097 | :show-usage | |
1098 | :usage "[(-u | --user) USER] COMMAND | |
1099 | Execute a COMMAND as the superuser or another USER.") | |
1100 | (throw 'eshell-external | |
a09dc9bf MA |
1101 | (let ((user (or user "root")) |
1102 | (host (or (file-remote-p default-directory 'host) | |
1103 | "localhost")) | |
1104 | (dir (or (file-remote-p default-directory 'localname) | |
1105 | (expand-file-name default-directory)))) | |
1106 | ;; `eshell-eval-using-options' reads options of COMMAND. | |
1107 | (while (and (stringp (car orig-args)) | |
1108 | (member (car orig-args) '("-u" "--user"))) | |
1109 | (setq orig-args (cddr orig-args))) | |
3ba30eb8 | 1110 | (if (and (file-remote-p default-directory) |
a09dc9bf MA |
1111 | (or |
1112 | (not (string-equal | |
1113 | "sudo" (file-remote-p default-directory 'method))) | |
1114 | (not (string-equal | |
1115 | user (file-remote-p default-directory 'user))))) | |
3ba30eb8 MA |
1116 | (add-to-list |
1117 | 'tramp-default-proxies-alist | |
1118 | (list host user (file-remote-p default-directory)))) | |
e7b538cd | 1119 | (let ((default-directory (format "/sudo:%s@%s:%s" user host dir))) |
a09dc9bf | 1120 | (eshell-named-command (car orig-args) (cdr orig-args)))))))) |
3ba30eb8 MA |
1121 | |
1122 | (put 'eshell/sudo 'eshell-no-numeric-conversions t) | |
1123 | ||
dbba8a04 | 1124 | (provide 'em-unix) |
affbf647 | 1125 | |
3146b070 GM |
1126 | ;; Local Variables: |
1127 | ;; generated-autoload-file: "esh-groups.el" | |
1128 | ;; End: | |
1129 | ||
cbee283d | 1130 | ;; arch-tag: 2462edd2-a76a-4cf2-897d-92e9a82ac1c9 |
affbf647 | 1131 | ;;; em-unix.el ends here |