Commit | Line | Data |
---|---|---|
60370d40 | 1 | ;;; em-ls.el --- implementation of ls in Lisp |
affbf647 | 2 | |
7f09df7a | 3 | ;; Copyright (C) 1999, 2000 Free Software Foundation |
affbf647 | 4 | |
7de5b421 GM |
5 | ;; Author: John Wiegley <johnw@gnu.org> |
6 | ||
affbf647 GM |
7 | ;; This file is part of GNU Emacs. |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 2, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
23 | ||
24 | (provide 'em-ls) | |
25 | ||
26 | (eval-when-compile (require 'esh-maint)) | |
27 | ||
28 | (defgroup eshell-ls nil | |
29 | "This module implements the \"ls\" utility fully in Lisp. If it is | |
30 | passed any unrecognized command switches, it will revert to the | |
31 | operating system's version. This version of \"ls\" uses text | |
32 | properties to colorize its output based on the setting of | |
33 | `eshell-ls-use-colors'." | |
34 | :tag "Implementation of `ls' in Lisp" | |
35 | :group 'eshell-module) | |
36 | ||
37 | ;;; Commentary: | |
38 | ||
39 | ;; Most of the command switches recognized by GNU's ls utility are | |
40 | ;; supported ([(fileutils)ls invocation]). | |
41 | ||
42 | (require 'esh-util) | |
43 | (require 'esh-opt) | |
44 | ||
45 | ;;; User Variables: | |
46 | ||
47 | (defvar eshell-ls-orig-insert-directory | |
48 | (symbol-function 'insert-directory) | |
49 | "Preserve the original definition of `insert-directory'.") | |
50 | ||
51 | (defcustom eshell-ls-unload-hook | |
52 | (list | |
53 | (function | |
54 | (lambda () | |
55 | (fset 'insert-directory eshell-ls-orig-insert-directory)))) | |
56 | "*When unloading `eshell-ls', restore the definition of `insert-directory'." | |
57 | :type 'hook | |
58 | :group 'eshell-ls) | |
59 | ||
dace60cf JW |
60 | (defcustom eshell-ls-initial-args nil |
61 | "*If non-nil, this list of args is included before any call to `ls'. | |
62 | This is useful for enabling human-readable format (-h), for example." | |
63 | :type '(repeat :tag "Arguments" string) | |
64 | :group 'eshell-ls) | |
65 | ||
ef94bd99 JW |
66 | (defcustom eshell-ls-dired-initial-args nil |
67 | "*If non-nil, args is included before any call to `ls' in dired. | |
68 | This is useful for enabling human-readable format (-h), for example." | |
69 | :type '(repeat :tag "Arguments" string) | |
70 | :group 'eshell-ls) | |
71 | ||
affbf647 GM |
72 | (defcustom eshell-ls-use-in-dired nil |
73 | "*If non-nil, use `eshell-ls' to read directories in dired." | |
74 | :set (lambda (symbol value) | |
75 | (if value | |
76 | (unless (and (boundp 'eshell-ls-use-in-dired) | |
77 | eshell-ls-use-in-dired) | |
78 | (fset 'insert-directory 'eshell-ls-insert-directory)) | |
79 | (when (and (boundp 'eshell-ls-insert-directory) | |
80 | eshell-ls-use-in-dired) | |
81 | (fset 'insert-directory eshell-ls-orig-insert-directory))) | |
82 | (setq eshell-ls-use-in-dired value)) | |
83 | :type 'boolean | |
84 | :require 'em-ls | |
85 | :group 'eshell-ls) | |
86 | ||
87 | (defcustom eshell-ls-default-blocksize 1024 | |
88 | "*The default blocksize to use when display file sizes with -s." | |
89 | :type 'integer | |
90 | :group 'eshell-ls) | |
91 | ||
dace60cf | 92 | (defcustom eshell-ls-exclude-regexp nil |
affbf647 | 93 | "*Unless -a is specified, files matching this regexp will not be shown." |
762fe76e | 94 | :type '(choice regexp (const nil)) |
affbf647 GM |
95 | :group 'eshell-ls) |
96 | ||
dace60cf JW |
97 | (defcustom eshell-ls-exclude-hidden t |
98 | "*Unless -a is specified, files beginning with . will not be shown. | |
99 | Using this boolean, instead of `eshell-ls-exclude-regexp', is both | |
100 | faster and conserves more memory." | |
101 | :type 'boolean | |
102 | :group 'eshell-ls) | |
103 | ||
affbf647 GM |
104 | (defcustom eshell-ls-use-colors t |
105 | "*If non-nil, use colors in file listings." | |
106 | :type 'boolean | |
107 | :group 'eshell-ls) | |
108 | ||
109 | (defface eshell-ls-directory-face | |
1fd714a4 RS |
110 | '((((class color) (background light)) (:foreground "Blue" :weight bold)) |
111 | (((class color) (background dark)) (:foreground "SkyBlue" :weight bold)) | |
112 | (t (:weight bold))) | |
affbf647 GM |
113 | "*The face used for highlight directories." |
114 | :group 'eshell-ls) | |
115 | ||
116 | (defface eshell-ls-symlink-face | |
1fd714a4 RS |
117 | '((((class color) (background light)) (:foreground "Dark Cyan" :weight bold)) |
118 | (((class color) (background dark)) (:foreground "Cyan" :weight bold))) | |
affbf647 GM |
119 | "*The face used for highlight symbolic links." |
120 | :group 'eshell-ls) | |
121 | ||
122 | (defface eshell-ls-executable-face | |
1fd714a4 RS |
123 | '((((class color) (background light)) (:foreground "ForestGreen" :weight bold)) |
124 | (((class color) (background dark)) (:foreground "Green" :weight bold))) | |
affbf647 GM |
125 | "*The face used for highlighting executables (not directories, though)." |
126 | :group 'eshell-ls) | |
127 | ||
128 | (defface eshell-ls-readonly-face | |
129 | '((((class color) (background light)) (:foreground "Brown")) | |
130 | (((class color) (background dark)) (:foreground "Pink"))) | |
131 | "*The face used for highlighting read-only files." | |
132 | :group 'eshell-ls) | |
133 | ||
134 | (defface eshell-ls-unreadable-face | |
135 | '((((class color) (background light)) (:foreground "Grey30")) | |
136 | (((class color) (background dark)) (:foreground "DarkGrey"))) | |
137 | "*The face used for highlighting unreadable files." | |
138 | :group 'eshell-ls) | |
139 | ||
140 | (defface eshell-ls-special-face | |
1fd714a4 RS |
141 | '((((class color) (background light)) (:foreground "Magenta" :weight bold)) |
142 | (((class color) (background dark)) (:foreground "Magenta" :weight bold))) | |
affbf647 GM |
143 | "*The face used for highlighting non-regular files." |
144 | :group 'eshell-ls) | |
145 | ||
146 | (defface eshell-ls-missing-face | |
1fd714a4 RS |
147 | '((((class color) (background light)) (:foreground "Red" :weight bold)) |
148 | (((class color) (background dark)) (:foreground "Red" :weight bold))) | |
affbf647 GM |
149 | "*The face used for highlighting non-existant file names." |
150 | :group 'eshell-ls) | |
151 | ||
152 | (defcustom eshell-ls-archive-regexp | |
153 | (concat "\\.\\(t\\(a[rz]\\|gz\\)\\|arj\\|lzh\\|" | |
154 | "zip\\|[zZ]\\|gz\\|bz2\\|deb\\|rpm\\)\\'") | |
155 | "*A regular expression that matches names of file archives. | |
156 | This typically includes both traditional archives and compressed | |
157 | files." | |
158 | :type 'regexp | |
159 | :group 'eshell-ls) | |
160 | ||
161 | (defface eshell-ls-archive-face | |
1fd714a4 RS |
162 | '((((class color) (background light)) (:foreground "Orchid" :weight bold)) |
163 | (((class color) (background dark)) (:foreground "Orchid" :weight bold))) | |
affbf647 GM |
164 | "*The face used for highlighting archived and compressed file names." |
165 | :group 'eshell-ls) | |
166 | ||
167 | (defcustom eshell-ls-backup-regexp | |
168 | "\\(\\`\\.?#\\|\\(\\.bak\\|~\\)\\'\\)" | |
169 | "*A regular expression that matches names of backup files." | |
170 | :type 'regexp | |
171 | :group 'eshell-ls) | |
172 | ||
173 | (defface eshell-ls-backup-face | |
174 | '((((class color) (background light)) (:foreground "OrangeRed")) | |
175 | (((class color) (background dark)) (:foreground "LightSalmon"))) | |
176 | "*The face used for highlighting backup file names." | |
177 | :group 'eshell-ls) | |
178 | ||
179 | (defcustom eshell-ls-product-regexp | |
087f110d | 180 | "\\.\\(elc\\|o\\(bj\\)?\\|a\\|lib\\|res\\)\\'" |
affbf647 GM |
181 | "*A regular expression that matches names of product files. |
182 | Products are files that get generated from a source file, and hence | |
183 | ought to be recreatable if they are deleted." | |
184 | :type 'regexp | |
185 | :group 'eshell-ls) | |
186 | ||
187 | (defface eshell-ls-product-face | |
188 | '((((class color) (background light)) (:foreground "OrangeRed")) | |
189 | (((class color) (background dark)) (:foreground "LightSalmon"))) | |
190 | "*The face used for highlighting files that are build products." | |
191 | :group 'eshell-ls) | |
192 | ||
193 | (defcustom eshell-ls-clutter-regexp | |
194 | "\\(^texput\\.log\\|^core\\)\\'" | |
195 | "*A regular expression that matches names of junk files. | |
196 | These are mainly files that get created for various reasons, but don't | |
197 | really need to stick around for very long." | |
198 | :type 'regexp | |
199 | :group 'eshell-ls) | |
200 | ||
201 | (defface eshell-ls-clutter-face | |
1fd714a4 RS |
202 | '((((class color) (background light)) (:foreground "OrangeRed" :weight bold)) |
203 | (((class color) (background dark)) (:foreground "OrangeRed" :weight bold))) | |
affbf647 GM |
204 | "*The face used for highlighting junk file names." |
205 | :group 'eshell-ls) | |
206 | ||
207 | (defsubst eshell-ls-filetype-p (attrs type) | |
208 | "Test whether ATTRS specifies a directory." | |
209 | (if (nth 8 attrs) | |
210 | (eq (aref (nth 8 attrs) 0) type))) | |
211 | ||
212 | (defmacro eshell-ls-applicable (attrs index func file) | |
213 | "Test whether, for ATTRS, the user UID can do what corresponds to INDEX. | |
214 | This is really just for efficiency, to avoid having to stat the file | |
215 | yet again." | |
8c6b1d83 JW |
216 | `(if (numberp (nth 2 ,attrs)) |
217 | (if (= (user-uid) (nth 2 ,attrs)) | |
dace60cf JW |
218 | (not (eq (aref (nth 8 ,attrs) ,index) ?-)) |
219 | (,(eval func) ,file)) | |
8c6b1d83 | 220 | (not (eq (aref (nth 8 ,attrs) |
dace60cf JW |
221 | (+ ,index (if (member (nth 2 ,attrs) |
222 | (eshell-current-ange-uids)) | |
223 | 0 6))) | |
224 | ?-)))) | |
affbf647 GM |
225 | |
226 | (defcustom eshell-ls-highlight-alist nil | |
227 | "*This alist correlates test functions to color. | |
228 | The format of the members of this alist is | |
229 | ||
230 | (TEST-SEXP . FACE) | |
231 | ||
232 | If TEST-SEXP evals to non-nil, that face will be used to highlight the | |
233 | name of the file. The first match wins. `file' and `attrs' are in | |
234 | scope during the evaluation of TEST-SEXP." | |
235 | :type '(repeat (cons function face)) | |
236 | :group 'eshell-ls) | |
237 | ||
238 | ;;; Functions: | |
239 | ||
240 | (defun eshell-ls-insert-directory | |
241 | (file switches &optional wildcard full-directory-p) | |
242 | "Insert directory listing for FILE, formatted according to SWITCHES. | |
243 | Leaves point after the inserted text. | |
244 | SWITCHES may be a string of options, or a list of strings. | |
245 | Optional third arg WILDCARD means treat FILE as shell wildcard. | |
246 | Optional fourth arg FULL-DIRECTORY-P means file is a directory and | |
247 | switches do not contain `d', so that a full listing is expected. | |
248 | ||
249 | This version of the function uses `eshell/ls'. If any of the switches | |
250 | passed are not recognized, the operating system's version will be used | |
251 | instead." | |
252 | (let ((handler (find-file-name-handler file 'insert-directory))) | |
253 | (if handler | |
254 | (funcall handler 'insert-directory file switches | |
255 | wildcard full-directory-p) | |
256 | (if (stringp switches) | |
257 | (setq switches (split-string switches))) | |
258 | (let (eshell-current-handles | |
259 | eshell-current-subjob-p) | |
260 | ;; use the fancy highlighting in `eshell-ls' rather than font-lock | |
261 | (when (and eshell-ls-use-colors | |
262 | (featurep 'font-lock)) | |
263 | (font-lock-mode -1) | |
6c9e58c4 | 264 | (setq font-lock-defaults nil) |
affbf647 GM |
265 | (if (boundp 'font-lock-buffers) |
266 | (set 'font-lock-buffers | |
267 | (delq (current-buffer) | |
268 | (symbol-value 'font-lock-buffers))))) | |
269 | (let ((insert-func 'insert) | |
270 | (error-func 'insert) | |
dace60cf | 271 | (flush-func 'ignore) |
ef94bd99 | 272 | eshell-ls-dired-initial-args) |
affbf647 GM |
273 | (eshell-do-ls (append switches (list file)))))))) |
274 | ||
275 | (defsubst eshell/ls (&rest args) | |
276 | "An alias version of `eshell-do-ls'." | |
277 | (let ((insert-func 'eshell-buffered-print) | |
278 | (error-func 'eshell-error) | |
279 | (flush-func 'eshell-flush)) | |
280 | (eshell-do-ls args))) | |
281 | ||
127fd3c2 JW |
282 | (put 'eshell/ls 'eshell-no-numeric-conversions t) |
283 | ||
affbf647 GM |
284 | (eval-when-compile |
285 | (defvar block-size) | |
286 | (defvar dereference-links) | |
287 | (defvar dir-literal) | |
288 | (defvar error-func) | |
289 | (defvar flush-func) | |
290 | (defvar human-readable) | |
291 | (defvar ignore-pattern) | |
292 | (defvar insert-func) | |
293 | (defvar listing-style) | |
294 | (defvar numeric-uid-gid) | |
295 | (defvar reverse-list) | |
296 | (defvar show-all) | |
297 | (defvar show-recursive) | |
298 | (defvar show-size) | |
8c6b1d83 JW |
299 | (defvar sort-method) |
300 | (defvar ange-cache)) | |
affbf647 GM |
301 | |
302 | (defun eshell-do-ls (&rest args) | |
303 | "Implementation of \"ls\" in Lisp, passing ARGS." | |
304 | (funcall flush-func -1) | |
305 | ;; process the command arguments, and begin listing files | |
306 | (eshell-eval-using-options | |
dace60cf JW |
307 | "ls" (if eshell-ls-initial-args |
308 | (list eshell-ls-initial-args args) | |
309 | args) | |
7f09df7a JW |
310 | `((?a "all" nil show-all |
311 | "show all files in directory") | |
affbf647 GM |
312 | (?c nil by-ctime sort-method |
313 | "sort by modification time") | |
314 | (?d "directory" nil dir-literal | |
315 | "list directory entries instead of contents") | |
316 | (?k "kilobytes" 1024 block-size | |
7f09df7a | 317 | "using 1024 as the block size") |
affbf647 GM |
318 | (?h "human-readable" 1024 human-readable |
319 | "print sizes in human readable format") | |
7f09df7a JW |
320 | (?H "si" 1000 human-readable |
321 | "likewise, but use powers of 1000 not 1024") | |
affbf647 GM |
322 | (?I "ignore" t ignore-pattern |
323 | "do not list implied entries matching pattern") | |
324 | (?l nil long-listing listing-style | |
325 | "use a long listing format") | |
326 | (?n "numeric-uid-gid" nil numeric-uid-gid | |
327 | "list numeric UIDs and GIDs instead of names") | |
328 | (?r "reverse" nil reverse-list | |
329 | "reverse order while sorting") | |
330 | (?s "size" nil show-size | |
331 | "print size of each file, in blocks") | |
332 | (?t nil by-mtime sort-method | |
333 | "sort by modification time") | |
334 | (?u nil by-atime sort-method | |
335 | "sort by last access time") | |
70a06174 JW |
336 | (?x nil by-lines listing-style |
337 | "list entries by lines instead of by columns") | |
7f09df7a JW |
338 | (?C nil by-columns listing-style |
339 | "list entries by columns") | |
340 | (?L "deference" nil dereference-links | |
341 | "list entries pointed to by symbolic links") | |
342 | (?R "recursive" nil show-recursive | |
343 | "list subdirectories recursively") | |
344 | (?S nil by-size sort-method | |
345 | "sort by file size") | |
346 | (?U nil unsorted sort-method | |
347 | "do not sort; list entries in directory order") | |
affbf647 GM |
348 | (?X nil by-extension sort-method |
349 | "sort alphabetically by entry extension") | |
350 | (?1 nil single-column listing-style | |
351 | "list one file per line") | |
352 | (nil "help" nil nil | |
7f09df7a | 353 | "show this usage display") |
affbf647 GM |
354 | :external "ls" |
355 | :usage "[OPTION]... [FILE]... | |
356 | List information about the FILEs (the current directory by default). | |
7f09df7a | 357 | Sort entries alphabetically across.") |
affbf647 GM |
358 | ;; setup some defaults, based on what the user selected |
359 | (unless block-size | |
360 | (setq block-size eshell-ls-default-blocksize)) | |
361 | (unless listing-style | |
362 | (setq listing-style 'by-columns)) | |
363 | (unless args | |
364 | (setq args (list "."))) | |
8c6b1d83 | 365 | (let ((eshell-ls-exclude-regexp eshell-ls-exclude-regexp) ange-cache) |
7f09df7a | 366 | (when ignore-pattern |
affbf647 GM |
367 | (unless (eshell-using-module 'eshell-glob) |
368 | (error (concat "-I option requires that `eshell-glob'" | |
369 | " be a member of `eshell-modules-list'"))) | |
370 | (set-text-properties 0 (length ignore-pattern) nil ignore-pattern) | |
dace60cf JW |
371 | (setq eshell-ls-exclude-regexp |
372 | (if eshell-ls-exclude-regexp | |
affbf647 | 373 | (concat "\\(" eshell-ls-exclude-regexp "\\|" |
dace60cf JW |
374 | (eshell-glob-regexp ignore-pattern) "\\)") |
375 | (eshell-glob-regexp ignore-pattern)))) | |
affbf647 GM |
376 | ;; list the files! |
377 | (eshell-ls-entries | |
378 | (mapcar (function | |
379 | (lambda (arg) | |
380 | (cons (if (and (eshell-under-windows-p) | |
381 | (file-name-absolute-p arg)) | |
382 | (expand-file-name arg) | |
383 | arg) | |
dace60cf JW |
384 | (eshell-file-attributes arg)))) |
385 | args) | |
affbf647 GM |
386 | t (expand-file-name default-directory))) |
387 | (funcall flush-func))) | |
388 | ||
389 | (defsubst eshell-ls-printable-size (filesize &optional by-blocksize) | |
390 | "Return a printable FILESIZE." | |
391 | (eshell-printable-size filesize human-readable | |
392 | (and by-blocksize block-size) | |
393 | eshell-ls-use-colors)) | |
394 | ||
395 | (defsubst eshell-ls-size-string (attrs size-width) | |
396 | "Return the size string for ATTRS length, using SIZE-WIDTH." | |
397 | (let* ((str (eshell-ls-printable-size (nth 7 attrs) t)) | |
398 | (len (length str))) | |
399 | (if (< len size-width) | |
400 | (concat (make-string (- size-width len) ? ) str) | |
401 | str))) | |
402 | ||
403 | (defun eshell-ls-annotate (fileinfo) | |
404 | "Given a FILEINFO object, return a resolved, decorated FILEINFO. | |
405 | This means resolving any symbolic links, determining what face the | |
406 | name should be displayed as, etc. Think of it as cooking a FILEINFO." | |
407 | (if (not (and (stringp (cadr fileinfo)) | |
408 | (or dereference-links | |
409 | (eq listing-style 'long-listing)))) | |
410 | (setcar fileinfo (eshell-ls-decorated-name fileinfo)) | |
411 | (let (dir attr) | |
412 | (unless (file-name-absolute-p (cadr fileinfo)) | |
413 | (setq dir (file-truename | |
414 | (file-name-directory | |
415 | (expand-file-name (car fileinfo)))))) | |
416 | (setq attr | |
8c6b1d83 | 417 | (eshell-file-attributes |
affbf647 GM |
418 | (let ((target (if dir |
419 | (expand-file-name (cadr fileinfo) dir) | |
420 | (cadr fileinfo)))) | |
421 | (if dereference-links | |
422 | (file-truename target) | |
423 | target)))) | |
424 | (if (or dereference-links | |
425 | (string-match "^\\.\\.?$" (car fileinfo))) | |
426 | (progn | |
427 | (setcdr fileinfo attr) | |
428 | (setcar fileinfo (eshell-ls-decorated-name fileinfo))) | |
429 | (assert (eq listing-style 'long-listing)) | |
430 | (setcar fileinfo | |
431 | (concat (eshell-ls-decorated-name fileinfo) " -> " | |
432 | (eshell-ls-decorated-name | |
433 | (cons (cadr fileinfo) attr))))))) | |
434 | fileinfo) | |
435 | ||
436 | (defun eshell-ls-file (fileinfo &optional size-width copy-fileinfo) | |
437 | "Output FILE in long format. | |
438 | FILE may be a string, or a cons cell whose car is the filename and | |
439 | whose cdr is the list of file attributes." | |
440 | (if (not (cdr fileinfo)) | |
441 | (funcall error-func (format "%s: No such file or directory\n" | |
442 | (car fileinfo))) | |
443 | (setq fileinfo | |
444 | (eshell-ls-annotate (if copy-fileinfo | |
445 | (cons (car fileinfo) | |
446 | (cdr fileinfo)) | |
447 | fileinfo))) | |
448 | (let ((file (car fileinfo)) | |
449 | (attrs (cdr fileinfo))) | |
450 | (if (not (eq listing-style 'long-listing)) | |
451 | (if show-size | |
452 | (funcall insert-func (eshell-ls-size-string attrs size-width) | |
453 | " " file "\n") | |
454 | (funcall insert-func file "\n")) | |
455 | (let ((line | |
456 | (concat | |
457 | (if show-size | |
458 | (concat (eshell-ls-size-string attrs size-width) " ")) | |
459 | (format | |
7f09df7a | 460 | "%s%4d %-8s %-8s " |
affbf647 GM |
461 | (or (nth 8 attrs) "??????????") |
462 | (or (nth 1 attrs) 0) | |
8c6b1d83 JW |
463 | (or (let ((user (nth 2 attrs))) |
464 | (and (not numeric-uid-gid) | |
465 | user | |
466 | (eshell-substring | |
467 | (if (numberp user) | |
468 | (user-login-name user) | |
469 | user) 8))) | |
affbf647 GM |
470 | (nth 2 attrs) |
471 | "") | |
8c6b1d83 JW |
472 | (or (let ((group (nth 3 attrs))) |
473 | (and (not numeric-uid-gid) | |
474 | group | |
475 | (eshell-substring | |
476 | (if (numberp group) | |
477 | (eshell-group-name group) | |
478 | group) 8))) | |
affbf647 GM |
479 | (nth 3 attrs) |
480 | "")) | |
481 | (let* ((str (eshell-ls-printable-size (nth 7 attrs))) | |
482 | (len (length str))) | |
6b61353c KH |
483 | (if (< len (or size-width 4)) |
484 | (concat (make-string (- (or size-width 4) len) ? ) str) | |
affbf647 GM |
485 | str)) |
486 | " " (format-time-string | |
7f09df7a JW |
487 | (concat |
488 | "%b %e " | |
489 | (if (= (nth 5 (decode-time (current-time))) | |
490 | (nth 5 (decode-time | |
491 | (nth (cond | |
492 | ((eq sort-method 'by-atime) 4) | |
493 | ((eq sort-method 'by-ctime) 6) | |
494 | (t 5)) attrs)))) | |
495 | "%H:%M" | |
496 | " %Y")) (nth (cond | |
497 | ((eq sort-method 'by-atime) 4) | |
498 | ((eq sort-method 'by-ctime) 6) | |
499 | (t 5)) attrs)) " "))) | |
affbf647 GM |
500 | (funcall insert-func line file "\n")))))) |
501 | ||
502 | (defun eshell-ls-dir (dirinfo &optional insert-name root-dir size-width) | |
503 | "Output the entries in DIRINFO. | |
504 | If INSERT-NAME is non-nil, the name of DIRINFO will be output. If | |
505 | ROOT-DIR is also non-nil, and a directory name, DIRINFO will be output | |
506 | relative to that directory." | |
507 | (let ((dir (car dirinfo))) | |
508 | (if (not (cdr dirinfo)) | |
509 | (funcall error-func (format "%s: No such file or directory\n" dir)) | |
510 | (if dir-literal | |
511 | (eshell-ls-file dirinfo size-width) | |
512 | (if insert-name | |
513 | (funcall insert-func | |
514 | (eshell-ls-decorated-name | |
515 | (cons (concat | |
516 | (if root-dir | |
517 | (file-relative-name dir root-dir) | |
518 | (expand-file-name dir))) | |
519 | (cdr dirinfo))) ":\n")) | |
dace60cf | 520 | (let ((entries (eshell-directory-files-and-attributes |
7f09df7a JW |
521 | dir nil (and (not show-all) |
522 | eshell-ls-exclude-hidden | |
523 | "\\`[^.]") t))) | |
dace60cf JW |
524 | (when (and (not show-all) eshell-ls-exclude-regexp) |
525 | (while (and entries (string-match eshell-ls-exclude-regexp | |
526 | (caar entries))) | |
affbf647 GM |
527 | (setq entries (cdr entries))) |
528 | (let ((e entries)) | |
529 | (while (cdr e) | |
530 | (if (string-match eshell-ls-exclude-regexp (car (cadr e))) | |
531 | (setcdr e (cddr e)) | |
532 | (setq e (cdr e)))))) | |
533 | (when (or (eq listing-style 'long-listing) show-size) | |
534 | (let ((total 0.0)) | |
535 | (setq size-width 0) | |
536 | (eshell-for e entries | |
537 | (if (nth 7 (cdr e)) | |
538 | (setq total (+ total (nth 7 (cdr e))) | |
539 | size-width | |
540 | (max size-width | |
541 | (length (eshell-ls-printable-size | |
542 | (nth 7 (cdr e)) t)))))) | |
543 | (funcall insert-func "total " | |
544 | (eshell-ls-printable-size total t) "\n"))) | |
545 | (let ((default-directory (expand-file-name dir))) | |
546 | (if show-recursive | |
547 | (eshell-ls-entries | |
548 | (let ((e entries) (good-entries (list t))) | |
549 | (while e | |
550 | (unless (let ((len (length (caar e)))) | |
551 | (and (eq (aref (caar e) 0) ?.) | |
552 | (or (= len 1) | |
553 | (and (= len 2) | |
554 | (eq (aref (caar e) 1) ?.))))) | |
555 | (nconc good-entries (list (car e)))) | |
556 | (setq e (cdr e))) | |
557 | (cdr good-entries)) | |
558 | nil root-dir) | |
559 | (eshell-ls-files (eshell-ls-sort-entries entries) | |
560 | size-width)))))))) | |
561 | ||
562 | (defsubst eshell-ls-compare-entries (l r inx func) | |
563 | "Compare the time of two files, L and R, the attribute indexed by INX." | |
564 | (let ((lt (nth inx (cdr l))) | |
565 | (rt (nth inx (cdr r)))) | |
566 | (if (equal lt rt) | |
567 | (string-lessp (directory-file-name (car l)) | |
568 | (directory-file-name (car r))) | |
569 | (funcall func rt lt)))) | |
570 | ||
571 | (defun eshell-ls-sort-entries (entries) | |
572 | "Sort the given ENTRIES, which may be files, directories or both. | |
573 | In Eshell's implementation of ls, ENTRIES is always reversed." | |
574 | (if (eq sort-method 'unsorted) | |
575 | (nreverse entries) | |
576 | (sort entries | |
577 | (function | |
578 | (lambda (l r) | |
579 | (let ((result | |
580 | (cond | |
581 | ((eq sort-method 'by-atime) | |
dace60cf | 582 | (eshell-ls-compare-entries l r 4 'eshell-time-less-p)) |
affbf647 | 583 | ((eq sort-method 'by-mtime) |
dace60cf | 584 | (eshell-ls-compare-entries l r 5 'eshell-time-less-p)) |
affbf647 | 585 | ((eq sort-method 'by-ctime) |
dace60cf | 586 | (eshell-ls-compare-entries l r 6 'eshell-time-less-p)) |
7f09df7a JW |
587 | ((eq sort-method 'by-size) |
588 | (eshell-ls-compare-entries l r 7 '<)) | |
affbf647 GM |
589 | ((eq sort-method 'by-extension) |
590 | (let ((lx (file-name-extension | |
591 | (directory-file-name (car l)))) | |
592 | (rx (file-name-extension | |
593 | (directory-file-name (car r))))) | |
594 | (cond | |
595 | ((or (and (not lx) (not rx)) | |
596 | (equal lx rx)) | |
597 | (string-lessp (directory-file-name (car l)) | |
598 | (directory-file-name (car r)))) | |
599 | ((not lx) t) | |
600 | ((not rx) nil) | |
601 | (t | |
602 | (string-lessp lx rx))))) | |
70a06174 | 603 | (t |
7f09df7a JW |
604 | (string-lessp (directory-file-name (car l)) |
605 | (directory-file-name (car r))))))) | |
affbf647 GM |
606 | (if reverse-list |
607 | (not result) | |
608 | result))))))) | |
609 | ||
610 | (defun eshell-ls-files (files &optional size-width copy-fileinfo) | |
611 | "Output a list of FILES. | |
612 | Each member of FILES is either a string or a cons cell of the form | |
613 | \(FILE . ATTRS)." | |
614 | (if (memq listing-style '(long-listing single-column)) | |
615 | (eshell-for file files | |
616 | (if file | |
617 | (eshell-ls-file file size-width copy-fileinfo))) | |
618 | (let ((f files) | |
619 | last-f | |
620 | display-files | |
621 | ignore) | |
622 | (while f | |
623 | (if (cdar f) | |
624 | (setq last-f f | |
625 | f (cdr f)) | |
626 | (unless ignore | |
627 | (funcall error-func | |
628 | (format "%s: No such file or directory\n" (caar f)))) | |
629 | (if (eq f files) | |
630 | (setq files (cdr files) | |
631 | f files) | |
632 | (if (not (cdr f)) | |
633 | (progn | |
634 | (setcdr last-f nil) | |
635 | (setq f nil)) | |
636 | (setcar f (cadr f)) | |
637 | (setcdr f (cddr f)))))) | |
638 | (if (not show-size) | |
639 | (setq display-files (mapcar 'eshell-ls-annotate files)) | |
640 | (eshell-for file files | |
641 | (let* ((str (eshell-ls-printable-size (nth 7 (cdr file)) t)) | |
642 | (len (length str))) | |
643 | (if (< len size-width) | |
644 | (setq str (concat (make-string (- size-width len) ? ) str))) | |
645 | (setq file (eshell-ls-annotate file) | |
646 | display-files (cons (cons (concat str " " (car file)) | |
647 | (cdr file)) | |
648 | display-files)))) | |
649 | (setq display-files (nreverse display-files))) | |
650 | (let* ((col-vals | |
651 | (if (eq listing-style 'by-columns) | |
652 | (eshell-ls-find-column-lengths display-files) | |
653 | (assert (eq listing-style 'by-lines)) | |
654 | (eshell-ls-find-column-widths display-files))) | |
655 | (col-widths (car col-vals)) | |
656 | (display-files (cdr col-vals)) | |
657 | (columns (length col-widths)) | |
658 | (col-index 1) | |
659 | need-return) | |
660 | (eshell-for file display-files | |
661 | (let ((name | |
662 | (if (car file) | |
663 | (if show-size | |
664 | (concat (substring (car file) 0 size-width) | |
665 | (eshell-ls-decorated-name | |
666 | (cons (substring (car file) size-width) | |
667 | (cdr file)))) | |
668 | (eshell-ls-decorated-name file)) | |
669 | ""))) | |
670 | (if (< col-index columns) | |
671 | (setq need-return | |
672 | (concat need-return name | |
673 | (make-string | |
674 | (max 0 (- (aref col-widths | |
675 | (1- col-index)) | |
676 | (length name))) ? )) | |
677 | col-index (1+ col-index)) | |
678 | (funcall insert-func need-return name "\n") | |
679 | (setq col-index 1 need-return nil)))) | |
680 | (if need-return | |
681 | (funcall insert-func need-return "\n")))))) | |
682 | ||
683 | (defun eshell-ls-entries (entries &optional separate root-dir) | |
684 | "Output PATH's directory ENTRIES, formatted according to OPTIONS. | |
685 | Each member of ENTRIES may either be a string or a cons cell, the car | |
686 | of which is the file name, and the cdr of which is the list of | |
687 | attributes. | |
688 | If SEPARATE is non-nil, directories name will be entirely separated | |
689 | from the filenames. This is the normal behavior, except when doing a | |
690 | recursive listing. | |
691 | ROOT-DIR, if non-nil, specifies the root directory of the listing, to | |
692 | which non-absolute directory names will be made relative if ever they | |
693 | need to be printed." | |
694 | (let (dirs files show-names need-return (size-width 0)) | |
695 | (eshell-for entry entries | |
696 | (if (and (not dir-literal) | |
697 | (or (eshell-ls-filetype-p (cdr entry) ?d) | |
698 | (and (eshell-ls-filetype-p (cdr entry) ?l) | |
699 | (file-directory-p (car entry))))) | |
700 | (progn | |
701 | (unless separate | |
702 | (setq files (cons entry files) | |
703 | size-width | |
704 | (if show-size | |
705 | (max size-width | |
706 | (length (eshell-ls-printable-size | |
707 | (nth 7 (cdr entry)) t)))))) | |
708 | (setq dirs (cons entry dirs))) | |
709 | (setq files (cons entry files) | |
710 | size-width | |
711 | (if show-size | |
712 | (max size-width | |
713 | (length (eshell-ls-printable-size | |
714 | (nth 7 (cdr entry)) t))))))) | |
715 | (when files | |
716 | (eshell-ls-files (eshell-ls-sort-entries files) | |
717 | size-width show-recursive) | |
718 | (setq need-return t)) | |
719 | (setq show-names (or show-recursive | |
720 | (> (+ (length files) (length dirs)) 1))) | |
721 | (eshell-for dir (eshell-ls-sort-entries dirs) | |
722 | (if (and need-return (not dir-literal)) | |
723 | (funcall insert-func "\n")) | |
724 | (eshell-ls-dir dir show-names | |
dace60cf JW |
725 | (unless (file-name-absolute-p (car dir)) root-dir) |
726 | size-width) | |
affbf647 GM |
727 | (setq need-return t)))) |
728 | ||
729 | (defun eshell-ls-find-column-widths (files) | |
730 | "Find the best fitting column widths for FILES. | |
731 | It will be returned as a vector, whose length is the number of columns | |
732 | to use, and each member of which is the width of that column | |
733 | \(including spacing)." | |
734 | (let* ((numcols 0) | |
735 | (width 0) | |
736 | (widths | |
737 | (mapcar | |
738 | (function | |
739 | (lambda (file) | |
740 | (+ 2 (length (car file))))) | |
741 | files)) | |
742 | ;; must account for the added space... | |
743 | (max-width (+ (window-width) 2)) | |
744 | (best-width 0) | |
745 | col-widths) | |
746 | ||
747 | ;; determine the largest number of columns in the first row | |
748 | (let ((w widths)) | |
749 | (while (and w (< width max-width)) | |
750 | (setq width (+ width (car w)) | |
751 | numcols (1+ numcols) | |
752 | w (cdr w)))) | |
753 | ||
754 | ;; refine it based on the following rows | |
755 | (while (> numcols 0) | |
756 | (let ((i 0) | |
757 | (colw (make-vector numcols 0)) | |
758 | (w widths)) | |
759 | (while w | |
760 | (if (= i numcols) | |
761 | (setq i 0)) | |
762 | (aset colw i (max (aref colw i) (car w))) | |
763 | (setq w (cdr w) i (1+ i))) | |
764 | (setq i 0 width 0) | |
765 | (while (< i numcols) | |
766 | (setq width (+ width (aref colw i)) | |
767 | i (1+ i))) | |
768 | (if (and (< width max-width) | |
769 | (> width best-width)) | |
770 | (setq col-widths colw | |
771 | best-width width))) | |
772 | (setq numcols (1- numcols))) | |
773 | ||
774 | (cons (or col-widths (vector max-width)) files))) | |
775 | ||
776 | (defun eshell-ls-find-column-lengths (files) | |
777 | "Find the best fitting column lengths for FILES. | |
778 | It will be returned as a vector, whose length is the number of columns | |
779 | to use, and each member of which is the width of that column | |
780 | \(including spacing)." | |
781 | (let* ((numcols 1) | |
782 | (width 0) | |
783 | (widths | |
784 | (mapcar | |
785 | (function | |
786 | (lambda (file) | |
787 | (+ 2 (length (car file))))) | |
788 | files)) | |
789 | (max-width (+ (window-width) 2)) | |
790 | col-widths | |
791 | colw) | |
792 | ||
793 | ;; refine it based on the following rows | |
794 | (while numcols | |
795 | (let* ((rows (ceiling (/ (length widths) | |
796 | (float numcols)))) | |
797 | (w widths) | |
798 | (len (* rows numcols)) | |
799 | (index 0) | |
800 | (i 0)) | |
801 | (setq width 0) | |
802 | (unless (or (= rows 0) | |
803 | (<= (/ (length widths) (float rows)) | |
804 | (float (1- numcols)))) | |
805 | (setq colw (make-vector numcols 0)) | |
806 | (while (> len 0) | |
807 | (if (= i numcols) | |
808 | (setq i 0 index (1+ index))) | |
809 | (aset colw i | |
810 | (max (aref colw i) | |
811 | (or (nth (+ (* i rows) index) w) 0))) | |
812 | (setq len (1- len) i (1+ i))) | |
813 | (setq i 0) | |
814 | (while (< i numcols) | |
815 | (setq width (+ width (aref colw i)) | |
816 | i (1+ i)))) | |
817 | (if (>= width max-width) | |
818 | (setq numcols nil) | |
819 | (if colw | |
820 | (setq col-widths colw)) | |
821 | (if (>= numcols (length widths)) | |
822 | (setq numcols nil) | |
823 | (setq numcols (1+ numcols)))))) | |
824 | ||
825 | (if (not col-widths) | |
826 | (cons (vector max-width) files) | |
827 | (setq numcols (length col-widths)) | |
828 | (let* ((rows (ceiling (/ (length widths) | |
829 | (float numcols)))) | |
830 | (len (* rows numcols)) | |
831 | (newfiles (make-list len nil)) | |
832 | (index 0) | |
833 | (i 0) | |
834 | (j 0)) | |
835 | (while (< j len) | |
836 | (if (= i numcols) | |
837 | (setq i 0 index (1+ index))) | |
838 | (setcar (nthcdr j newfiles) | |
839 | (nth (+ (* i rows) index) files)) | |
840 | (setq j (1+ j) i (1+ i))) | |
841 | (cons col-widths newfiles))))) | |
842 | ||
843 | (defun eshell-ls-decorated-name (file) | |
844 | "Return FILE, possibly decorated. | |
845 | Use TRUENAME for predicate tests, if passed." | |
7f09df7a JW |
846 | (if eshell-ls-use-colors |
847 | (let ((face | |
848 | (cond | |
849 | ((not (cdr file)) | |
850 | 'eshell-ls-missing-face) | |
851 | ||
852 | ((stringp (cadr file)) | |
853 | 'eshell-ls-symlink-face) | |
854 | ||
855 | ((eq (cadr file) t) | |
856 | 'eshell-ls-directory-face) | |
857 | ||
858 | ((not (eshell-ls-filetype-p (cdr file) ?-)) | |
859 | 'eshell-ls-special-face) | |
860 | ||
861 | ((and (/= (user-uid) 0) ; root can execute anything | |
862 | (eshell-ls-applicable (cdr file) 3 | |
863 | 'file-executable-p (car file))) | |
864 | 'eshell-ls-executable-face) | |
865 | ||
866 | ((not (eshell-ls-applicable (cdr file) 1 | |
867 | 'file-readable-p (car file))) | |
868 | 'eshell-ls-unreadable-face) | |
869 | ||
870 | ((string-match eshell-ls-archive-regexp (car file)) | |
871 | 'eshell-ls-archive-face) | |
872 | ||
873 | ((string-match eshell-ls-backup-regexp (car file)) | |
874 | 'eshell-ls-backup-face) | |
875 | ||
876 | ((string-match eshell-ls-product-regexp (car file)) | |
877 | 'eshell-ls-product-face) | |
878 | ||
879 | ((string-match eshell-ls-clutter-regexp (car file)) | |
880 | 'eshell-ls-clutter-face) | |
881 | ||
882 | ((not (eshell-ls-applicable (cdr file) 2 | |
883 | 'file-writable-p (car file))) | |
884 | 'eshell-ls-readonly-face) | |
885 | (eshell-ls-highlight-alist | |
886 | (let ((tests eshell-ls-highlight-alist) | |
887 | value) | |
888 | (while tests | |
889 | (if (funcall (caar tests) (car file) (cdr file)) | |
890 | (setq value (cdar tests) tests nil) | |
891 | (setq tests (cdr tests)))) | |
892 | value))))) | |
893 | (if face | |
894 | (add-text-properties 0 (length (car file)) | |
895 | (list 'face face) | |
896 | (car file))))) | |
897 | (car file)) | |
affbf647 GM |
898 | |
899 | ;;; Code: | |
900 | ||
6b61353c | 901 | ;;; arch-tag: 9295181c-0cb2-499c-999b-89f5359842cb |
affbf647 | 902 | ;;; em-ls.el ends here |