1 ;;; em-ls.el --- implementation of ls in Lisp
3 ;; Copyright (C) 1999-2013 Free Software Foundation, Inc.
5 ;; Author: John Wiegley <johnw@gnu.org>
7 ;; This file is part of GNU Emacs.
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 3 of the License, or
12 ;; (at your option) any later version.
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.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;; Most of the command switches recognized by GNU's ls utility are
25 ;; supported ([(fileutils)ls invocation]).
37 (defgroup eshell-ls nil
38 "This module implements the \"ls\" utility fully in Lisp. If it is
39 passed any unrecognized command switches, it will revert to the
40 operating system's version. This version of \"ls\" uses text
41 properties to colorize its output based on the setting of
42 `eshell-ls-use-colors'."
43 :tag
"Implementation of `ls' in Lisp"
44 :group
'eshell-module
))
48 (defvar eshell-ls-orig-insert-directory
49 (symbol-function 'insert-directory
)
50 "Preserve the original definition of `insert-directory'.")
52 (defcustom eshell-ls-unload-hook
56 (fset 'insert-directory eshell-ls-orig-insert-directory
))))
57 "When unloading `eshell-ls', restore the definition of `insert-directory'."
61 (defcustom eshell-ls-date-format
"%Y-%m-%d"
62 "How to display time information in `eshell-ls-file'.
63 This is passed to `format-time-string' as a format string.
64 To display the date using the current locale, use \"%b \%e\"."
69 (defcustom eshell-ls-initial-args nil
70 "If non-nil, this list of args is included before any call to `ls'.
71 This is useful for enabling human-readable format (-h), for example."
72 :type
'(repeat :tag
"Arguments" string
)
75 (defcustom eshell-ls-dired-initial-args nil
76 "If non-nil, args is included before any call to `ls' in Dired.
77 This is useful for enabling human-readable format (-h), for example."
78 :type
'(repeat :tag
"Arguments" string
)
81 (defcustom eshell-ls-use-in-dired nil
82 "If non-nil, use `eshell-ls' to read directories in Dired."
83 :set
(lambda (symbol value
)
85 (unless (and (boundp 'eshell-ls-use-in-dired
)
86 eshell-ls-use-in-dired
)
87 (fset 'insert-directory
'eshell-ls-insert-directory
))
88 (when (and (boundp 'eshell-ls-insert-directory
)
89 eshell-ls-use-in-dired
)
90 (fset 'insert-directory eshell-ls-orig-insert-directory
)))
91 (setq eshell-ls-use-in-dired value
))
96 (defcustom eshell-ls-default-blocksize
1024
97 "The default blocksize to use when display file sizes with -s."
101 (defcustom eshell-ls-exclude-regexp nil
102 "Unless -a is specified, files matching this regexp will not be shown."
103 :type
'(choice regexp
(const nil
))
106 (defcustom eshell-ls-exclude-hidden t
107 "Unless -a is specified, files beginning with . will not be shown.
108 Using this boolean, instead of `eshell-ls-exclude-regexp', is both
109 faster and conserves more memory."
113 (defcustom eshell-ls-use-colors t
114 "If non-nil, use colors in file listings."
118 (defface eshell-ls-directory
119 '((((class color
) (background light
)) (:foreground
"Blue" :weight bold
))
120 (((class color
) (background dark
)) (:foreground
"SkyBlue" :weight bold
))
122 "The face used for highlight directories."
124 (define-obsolete-face-alias 'eshell-ls-directory-face
125 'eshell-ls-directory
"22.1")
127 (defface eshell-ls-symlink
128 '((((class color
) (background light
)) (:foreground
"Dark Cyan" :weight bold
))
129 (((class color
) (background dark
)) (:foreground
"Cyan" :weight bold
)))
130 "The face used for highlight symbolic links."
132 (define-obsolete-face-alias 'eshell-ls-symlink-face
'eshell-ls-symlink
"22.1")
134 (defface eshell-ls-executable
135 '((((class color
) (background light
)) (:foreground
"ForestGreen" :weight bold
))
136 (((class color
) (background dark
)) (:foreground
"Green" :weight bold
)))
137 "The face used for highlighting executables (not directories, though)."
139 (define-obsolete-face-alias 'eshell-ls-executable-face
140 'eshell-ls-executable
"22.1")
142 (defface eshell-ls-readonly
143 '((((class color
) (background light
)) (:foreground
"Brown"))
144 (((class color
) (background dark
)) (:foreground
"Pink")))
145 "The face used for highlighting read-only files."
147 (define-obsolete-face-alias 'eshell-ls-readonly-face
'eshell-ls-readonly
"22.1")
149 (defface eshell-ls-unreadable
150 '((((class color
) (background light
)) (:foreground
"Grey30"))
151 (((class color
) (background dark
)) (:foreground
"DarkGrey")))
152 "The face used for highlighting unreadable files."
154 (define-obsolete-face-alias 'eshell-ls-unreadable-face
155 'eshell-ls-unreadable
"22.1")
157 (defface eshell-ls-special
158 '((((class color
) (background light
)) (:foreground
"Magenta" :weight bold
))
159 (((class color
) (background dark
)) (:foreground
"Magenta" :weight bold
)))
160 "The face used for highlighting non-regular files."
162 (define-obsolete-face-alias 'eshell-ls-special-face
'eshell-ls-special
"22.1")
164 (defface eshell-ls-missing
165 '((((class color
) (background light
)) (:foreground
"Red" :weight bold
))
166 (((class color
) (background dark
)) (:foreground
"Red" :weight bold
)))
167 "The face used for highlighting non-existent file names."
169 (define-obsolete-face-alias 'eshell-ls-missing-face
'eshell-ls-missing
"22.1")
171 (defcustom eshell-ls-archive-regexp
172 (concat "\\.\\(t\\(a[rz]\\|gz\\)\\|arj\\|lzh\\|"
173 "zip\\|[zZ]\\|gz\\|bz2\\|xz\\|deb\\|rpm\\)\\'")
174 "A regular expression that matches names of file archives.
175 This typically includes both traditional archives and compressed
177 :version
"24.1" ; added xz
181 (defface eshell-ls-archive
182 '((((class color
) (background light
)) (:foreground
"Orchid" :weight bold
))
183 (((class color
) (background dark
)) (:foreground
"Orchid" :weight bold
)))
184 "The face used for highlighting archived and compressed file names."
186 (define-obsolete-face-alias 'eshell-ls-archive-face
'eshell-ls-archive
"22.1")
188 (defcustom eshell-ls-backup-regexp
189 "\\(\\`\\.?#\\|\\(\\.bak\\|~\\)\\'\\)"
190 "A regular expression that matches names of backup files."
194 (defface eshell-ls-backup
195 '((((class color
) (background light
)) (:foreground
"OrangeRed"))
196 (((class color
) (background dark
)) (:foreground
"LightSalmon")))
197 "The face used for highlighting backup file names."
199 (define-obsolete-face-alias 'eshell-ls-backup-face
'eshell-ls-backup
"22.1")
201 (defcustom eshell-ls-product-regexp
202 "\\.\\(elc\\|o\\(bj\\)?\\|a\\|lib\\|res\\)\\'"
203 "A regular expression that matches names of product files.
204 Products are files that get generated from a source file, and hence
205 ought to be recreatable if they are deleted."
209 (defface eshell-ls-product
210 '((((class color
) (background light
)) (:foreground
"OrangeRed"))
211 (((class color
) (background dark
)) (:foreground
"LightSalmon")))
212 "The face used for highlighting files that are build products."
214 (define-obsolete-face-alias 'eshell-ls-product-face
'eshell-ls-product
"22.1")
216 (defcustom eshell-ls-clutter-regexp
217 "\\(^texput\\.log\\|^core\\)\\'"
218 "A regular expression that matches names of junk files.
219 These are mainly files that get created for various reasons, but don't
220 really need to stick around for very long."
224 (defface eshell-ls-clutter
225 '((((class color
) (background light
)) (:foreground
"OrangeRed" :weight bold
))
226 (((class color
) (background dark
)) (:foreground
"OrangeRed" :weight bold
)))
227 "The face used for highlighting junk file names."
229 (define-obsolete-face-alias 'eshell-ls-clutter-face
'eshell-ls-clutter
"22.1")
231 (defsubst eshell-ls-filetype-p
(attrs type
)
232 "Test whether ATTRS specifies a directory."
234 (eq (aref (nth 8 attrs
) 0) type
)))
236 (defmacro eshell-ls-applicable
(attrs index func file
)
237 "Test whether, for ATTRS, the user can do what corresponds to INDEX.
238 ATTRS is a string of file modes. See `file-attributes'.
239 If we cannot determine the answer using ATTRS (e.g., if we need
240 to know what group the user is in), compute the return value by
241 calling FUNC with FILE as an argument."
242 `(let ((owner (nth 2 ,attrs
))
243 (modes (nth 8 ,attrs
)))
244 (cond ((cond ((numberp owner
)
245 (= owner
(user-uid)))
247 (or (string-equal owner
(user-login-name))
248 (member owner
(eshell-current-ange-uids)))))
249 ;; The user owns this file.
250 (not (eq (aref modes
,index
) ?-
)))
251 ((eq (aref modes
(+ ,index
3))
252 (aref modes
(+ ,index
6)))
253 ;; If the "group" and "other" fields give identical
254 ;; results, use that.
255 (not (eq (aref modes
(+ ,index
3)) ?-
)))
257 ;; Otherwise call FUNC.
258 (,(eval func
) ,file
)))))
260 (defcustom eshell-ls-highlight-alist nil
261 "This alist correlates test functions to color.
262 The format of the members of this alist is
266 If TEST-SEXP evals to non-nil, that face will be used to highlight the
267 name of the file. The first match wins. `file' and `attrs' are in
268 scope during the evaluation of TEST-SEXP."
269 :type
'(repeat (cons function face
))
274 (defun eshell-ls-insert-directory
275 (file switches
&optional wildcard full-directory-p
)
276 "Insert directory listing for FILE, formatted according to SWITCHES.
277 Leaves point after the inserted text.
278 SWITCHES may be a string of options, or a list of strings.
279 Optional third arg WILDCARD means treat FILE as shell wildcard.
280 Optional fourth arg FULL-DIRECTORY-P means file is a directory and
281 switches do not contain `d', so that a full listing is expected.
283 This version of the function uses `eshell/ls'. If any of the switches
284 passed are not recognized, the operating system's version will be used
286 (let ((handler (find-file-name-handler file
'insert-directory
)))
288 (funcall handler
'insert-directory file switches
289 wildcard full-directory-p
)
290 (if (stringp switches
)
291 (setq switches
(split-string switches
)))
292 (let (eshell-current-handles
293 eshell-current-subjob-p
295 ;; use the fancy highlighting in `eshell-ls' rather than font-lock
296 (when (and eshell-ls-use-colors
297 (featurep 'font-lock
))
299 (setq font-lock-defaults nil
)
300 (if (boundp 'font-lock-buffers
)
301 (set 'font-lock-buffers
302 (delq (current-buffer)
303 (symbol-value 'font-lock-buffers
)))))
304 (let ((insert-func 'insert
)
307 eshell-ls-dired-initial-args
)
308 (eshell-do-ls (append switches
(list file
))))))))
310 (defsubst eshell
/ls
(&rest args
)
311 "An alias version of `eshell-do-ls'."
312 (let ((insert-func 'eshell-buffered-print
)
313 (error-func 'eshell-error
)
314 (flush-func 'eshell-flush
))
315 (apply 'eshell-do-ls args
)))
317 (put 'eshell
/ls
'eshell-no-numeric-conversions t
)
320 (defvar dereference-links
)
324 (defvar human-readable
)
325 (defvar ignore-pattern
)
327 (defvar listing-style
)
328 (defvar numeric-uid-gid
)
329 (defvar reverse-list
)
331 (defvar show-almost-all
)
332 (defvar show-recursive
)
338 (defun eshell-do-ls (&rest args
)
339 "Implementation of \"ls\" in Lisp, passing ARGS."
340 (funcall flush-func -
1)
341 ;; Process the command arguments, and begin listing files.
342 (eshell-eval-using-options
343 "ls" (if eshell-ls-initial-args
344 (list eshell-ls-initial-args args
)
346 `((?a
"all" nil show-all
347 "do not ignore entries starting with .")
348 (?A
"almost-all" nil show-almost-all
349 "do not list implied . and ..")
350 (?c nil by-ctime sort-method
351 "sort by last status change time")
352 (?d
"directory" nil dir-literal
353 "list directory entries instead of contents")
354 (?k
"kilobytes" 1024 block-size
355 "using 1024 as the block size")
356 (?h
"human-readable" 1024 human-readable
357 "print sizes in human readable format")
358 (?H
"si" 1000 human-readable
359 "likewise, but use powers of 1000 not 1024")
360 (?I
"ignore" t ignore-pattern
361 "do not list implied entries matching pattern")
362 (?l nil long-listing listing-style
363 "use a long listing format")
364 (?n
"numeric-uid-gid" nil numeric-uid-gid
365 "list numeric UIDs and GIDs instead of names")
366 (?r
"reverse" nil reverse-list
367 "reverse order while sorting")
368 (?s
"size" nil show-size
369 "print size of each file, in blocks")
370 (?t nil by-mtime sort-method
371 "sort by modification time")
372 (?u nil by-atime sort-method
373 "sort by last access time")
374 (?x nil by-lines listing-style
375 "list entries by lines instead of by columns")
376 (?C nil by-columns listing-style
377 "list entries by columns")
378 (?L
"dereference" nil dereference-links
379 "list entries pointed to by symbolic links")
380 (?R
"recursive" nil show-recursive
381 "list subdirectories recursively")
382 (?S nil by-size sort-method
384 (?U nil unsorted sort-method
385 "do not sort; list entries in directory order")
386 (?X nil by-extension sort-method
387 "sort alphabetically by entry extension")
388 (?
1 nil single-column listing-style
389 "list one file per line")
390 (nil "dired" nil dired-flag
391 "Here for compatibility with GNU ls.")
393 "show this usage display")
395 :usage
"[OPTION]... [FILE]...
396 List information about the FILEs (the current directory by default).
397 Sort entries alphabetically across.")
398 ;; setup some defaults, based on what the user selected
400 (setq block-size eshell-ls-default-blocksize
))
401 (unless listing-style
402 (setq listing-style
'by-columns
))
404 (setq args
(list ".")))
405 (let ((eshell-ls-exclude-regexp eshell-ls-exclude-regexp
) ange-cache
)
407 (unless (eshell-using-module 'eshell-glob
)
408 (error (concat "-I option requires that `eshell-glob'"
409 " be a member of `eshell-modules-list'")))
410 (set-text-properties 0 (length ignore-pattern
) nil ignore-pattern
)
411 (setq eshell-ls-exclude-regexp
412 (if eshell-ls-exclude-regexp
413 (concat "\\(" eshell-ls-exclude-regexp
"\\|"
414 (eshell-glob-regexp ignore-pattern
) "\\)")
415 (eshell-glob-regexp ignore-pattern
))))
418 (mapcar (lambda (arg)
419 (cons (if (and (eshell-under-windows-p)
420 (file-name-absolute-p arg
))
421 (expand-file-name arg
)
423 (eshell-file-attributes
424 arg
(if numeric-uid-gid
'integer
'string
))))
426 t
(expand-file-name default-directory
)))
427 (funcall flush-func
)))
429 (defsubst eshell-ls-printable-size
(filesize &optional by-blocksize
)
430 "Return a printable FILESIZE."
431 (eshell-printable-size filesize human-readable
432 (and by-blocksize block-size
)
433 eshell-ls-use-colors
))
435 (defsubst eshell-ls-size-string
(attrs size-width
)
436 "Return the size string for ATTRS length, using SIZE-WIDTH."
437 (let* ((str (eshell-ls-printable-size (nth 7 attrs
) t
))
439 (if (< len size-width
)
440 (concat (make-string (- size-width len
) ?
) str
)
443 (defun eshell-ls-annotate (fileinfo)
444 "Given a FILEINFO object, return a resolved, decorated FILEINFO.
445 This means resolving any symbolic links, determining what face the
446 name should be displayed as, etc. Think of it as cooking a FILEINFO."
447 (if (not (and (stringp (cadr fileinfo
))
448 (or dereference-links
449 (eq listing-style
'long-listing
))))
450 (setcar fileinfo
(eshell-ls-decorated-name fileinfo
))
452 (unless (file-name-absolute-p (cadr fileinfo
))
453 (setq dir
(file-truename
455 (expand-file-name (car fileinfo
))))))
457 (eshell-file-attributes
458 (let ((target (if dir
459 (expand-file-name (cadr fileinfo
) dir
)
461 (if dereference-links
462 (file-truename target
)
464 (if (or dereference-links
465 (string-match "^\\.\\.?$" (car fileinfo
)))
467 (setcdr fileinfo attr
)
468 (setcar fileinfo
(eshell-ls-decorated-name fileinfo
)))
469 (cl-assert (eq listing-style
'long-listing
))
471 (concat (eshell-ls-decorated-name fileinfo
) " -> "
472 (eshell-ls-decorated-name
473 (cons (cadr fileinfo
) attr
)))))))
476 (defun eshell-ls-file (fileinfo &optional size-width copy-fileinfo
)
477 "Output FILE in long format.
478 FILE may be a string, or a cons cell whose car is the filename and
479 whose cdr is the list of file attributes."
480 (if (not (cdr fileinfo
))
481 (funcall error-func
(format "%s: No such file or directory\n"
484 (eshell-ls-annotate (if copy-fileinfo
488 (let ((file (car fileinfo
))
489 (attrs (cdr fileinfo
)))
490 (if (not (eq listing-style
'long-listing
))
492 (funcall insert-func
(eshell-ls-size-string attrs size-width
)
494 (funcall insert-func file
"\n"))
498 (concat (eshell-ls-size-string attrs size-width
) " "))
503 (or (nth 8 attrs
) "??????????")
505 (or (let ((user (nth 2 attrs
)))
507 (eshell-substring user
14)))
510 (or (let ((group (nth 3 attrs
)))
512 (eshell-substring group
8)))
515 (let* ((str (eshell-ls-printable-size (nth 7 attrs
)))
517 ;; Let file sizes shorter than 9 align neatly.
518 (if (< len
(or size-width
8))
519 (concat (make-string (- (or size-width
8) len
) ?
) str
)
521 " " (format-time-string
523 eshell-ls-date-format
" "
524 (if (= (nth 5 (decode-time (current-time)))
527 ((eq sort-method
'by-atime
) 4)
528 ((eq sort-method
'by-ctime
) 6)
532 ((eq sort-method
'by-atime
) 4)
533 ((eq sort-method
'by-ctime
) 6)
534 (t 5)) attrs
)) " ")))
535 (funcall insert-func line file
"\n"))))))
537 (defun eshell-ls-dir (dirinfo &optional insert-name root-dir size-width
)
538 "Output the entries in DIRINFO.
539 If INSERT-NAME is non-nil, the name of DIRINFO will be output. If
540 ROOT-DIR is also non-nil, and a directory name, DIRINFO will be output
541 relative to that directory."
542 (let ((dir (car dirinfo
)))
543 (if (not (cdr dirinfo
))
544 (funcall error-func
(format "%s: No such file or directory\n" dir
))
546 (eshell-ls-file dirinfo size-width
)
549 (eshell-ls-decorated-name
552 (file-relative-name dir root-dir
)
553 (expand-file-name dir
)))
554 (cdr dirinfo
))) ":\n"))
555 (let ((entries (eshell-directory-files-and-attributes
556 dir nil
(and (not show-all
)
557 eshell-ls-exclude-hidden
559 ;; Asking for UID and GID as
560 ;; strings saves another syscall
561 ;; later when we are going to
562 ;; display user and group names.
563 (if numeric-uid-gid
'integer
'string
))))
564 (when (and show-almost-all
569 (let ((filename (caar entry
)))
570 (or (string= filename
".")
571 (string= filename
".."))))
573 (when (and (not show-all
)
574 eshell-ls-exclude-regexp
)
575 (while (and entries
(string-match eshell-ls-exclude-regexp
577 (setq entries
(cdr entries
)))
580 (if (string-match eshell-ls-exclude-regexp
(car (cadr e
)))
583 (when (or (eq listing-style
'long-listing
) show-size
)
588 (setq total
(+ total
(nth 7 (cdr e
)))
591 (length (eshell-ls-printable-size
594 ;; If we are under -l, count length
595 ;; of sizes in bytes, not in blocks.
596 (eq listing-style
'long-listing
))))))))
597 (funcall insert-func
"total "
598 (eshell-ls-printable-size total t
) "\n")))
599 (let ((default-directory (expand-file-name dir
)))
602 (let ((e entries
) (good-entries (list t
)))
604 (unless (let ((len (length (caar e
))))
605 (and (eq (aref (caar e
) 0) ?.
)
608 (eq (aref (caar e
) 1) ?.
)))))
609 (nconc good-entries
(list (car e
))))
613 (eshell-ls-files (eshell-ls-sort-entries entries
)
616 (defsubst eshell-ls-compare-entries
(l r inx func
)
617 "Compare the time of two files, L and R, the attribute indexed by INX."
618 (let ((lt (nth inx
(cdr l
)))
619 (rt (nth inx
(cdr r
))))
621 (string-lessp (directory-file-name (car l
))
622 (directory-file-name (car r
)))
623 (funcall func rt lt
))))
625 (defun eshell-ls-sort-entries (entries)
626 "Sort the given ENTRIES, which may be files, directories or both.
627 In Eshell's implementation of ls, ENTRIES is always reversed."
628 (if (eq sort-method
'unsorted
)
635 ((eq sort-method
'by-atime
)
636 (eshell-ls-compare-entries l r
4 'time-less-p
))
637 ((eq sort-method
'by-mtime
)
638 (eshell-ls-compare-entries l r
5 'time-less-p
))
639 ((eq sort-method
'by-ctime
)
640 (eshell-ls-compare-entries l r
6 'time-less-p
))
641 ((eq sort-method
'by-size
)
642 (eshell-ls-compare-entries l r
7 '<))
643 ((eq sort-method
'by-extension
)
644 (let ((lx (file-name-extension
645 (directory-file-name (car l
))))
646 (rx (file-name-extension
647 (directory-file-name (car r
)))))
649 ((or (and (not lx
) (not rx
))
651 (string-lessp (directory-file-name (car l
))
652 (directory-file-name (car r
))))
656 (string-lessp lx rx
)))))
658 (string-lessp (directory-file-name (car l
))
659 (directory-file-name (car r
)))))))
664 (defun eshell-ls-files (files &optional size-width copy-fileinfo
)
665 "Output a list of FILES.
666 Each member of FILES is either a string or a cons cell of the form
668 ;; Mimic behavior of coreutils ls, which lists a single file per
669 ;; line when output is not a tty. Exceptions: if -x was supplied,
670 ;; or if we are the _last_ command in a pipeline.
671 ;; FIXME Not really the same since not testing output destination.
672 (if (or (and eshell-in-pipeline-p
673 (not (eq eshell-in-pipeline-p
'last
))
674 (not (eq listing-style
'by-lines
)))
675 (memq listing-style
'(long-listing single-column
)))
678 (eshell-ls-file file size-width copy-fileinfo
)))
689 (format "%s: No such file or directory\n" (caar f
))))
691 (setq files
(cdr files
)
698 (setcdr f
(cddr f
))))))
700 (setq display-files
(mapcar 'eshell-ls-annotate files
))
702 (let* ((str (eshell-ls-printable-size (nth 7 (cdr file
)) t
))
704 (if (< len size-width
)
705 (setq str
(concat (make-string (- size-width len
) ?
) str
)))
706 (setq file
(eshell-ls-annotate file
)
707 display-files
(cons (cons (concat str
" " (car file
))
710 (setq display-files
(nreverse display-files
)))
712 (if (eq listing-style
'by-columns
)
713 (eshell-ls-find-column-lengths display-files
)
714 (cl-assert (eq listing-style
'by-lines
))
715 (eshell-ls-find-column-widths display-files
)))
716 (col-widths (car col-vals
))
717 (display-files (cdr col-vals
))
718 (columns (length col-widths
))
721 (dolist (file display-files
)
725 (concat (substring (car file
) 0 size-width
)
726 (eshell-ls-decorated-name
727 (cons (substring (car file
) size-width
)
729 (eshell-ls-decorated-name file
))
731 (if (< col-index columns
)
733 (concat need-return name
735 (max 0 (- (aref col-widths
738 col-index
(1+ col-index
))
739 (funcall insert-func need-return name
"\n")
740 (setq col-index
1 need-return nil
))))
742 (funcall insert-func need-return
"\n"))))))
744 (defun eshell-ls-entries (entries &optional separate root-dir
)
745 "Output PATH's directory ENTRIES.
746 Each member of ENTRIES may either be a string or a cons cell, the car
747 of which is the file name, and the cdr of which is the list of
749 If SEPARATE is non-nil, directories name will be entirely separated
750 from the filenames. This is the normal behavior, except when doing a
752 ROOT-DIR, if non-nil, specifies the root directory of the listing, to
753 which non-absolute directory names will be made relative if ever they
755 (let (dirs files show-names need-return
(size-width 0))
756 (dolist (entry entries
)
757 (if (and (not dir-literal
)
758 (or (eshell-ls-filetype-p (cdr entry
) ?d
)
759 (and (eshell-ls-filetype-p (cdr entry
) ?l
)
760 (file-directory-p (car entry
)))))
763 (setq files
(cons entry files
)
767 (length (eshell-ls-printable-size
768 (nth 7 (cdr entry
)) t
))))))
769 (setq dirs
(cons entry dirs
)))
770 (setq files
(cons entry files
)
774 (length (eshell-ls-printable-size
775 (nth 7 (cdr entry
)) t
)))))))
777 (eshell-ls-files (eshell-ls-sort-entries files
)
778 size-width show-recursive
)
779 (setq need-return t
))
780 (setq show-names
(or show-recursive
781 (> (+ (length files
) (length dirs
)) 1)))
782 (dolist (dir (eshell-ls-sort-entries dirs
))
783 (if (and need-return
(not dir-literal
))
784 (funcall insert-func
"\n"))
785 (eshell-ls-dir dir show-names
786 (unless (file-name-absolute-p (car dir
)) root-dir
)
788 (setq need-return t
))))
790 (defun eshell-ls-find-column-widths (files)
791 "Find the best fitting column widths for FILES.
792 It will be returned as a vector, whose length is the number of columns
793 to use, and each member of which is the width of that column
794 \(including spacing)."
801 (+ 2 (length (car file
)))))
803 ;; must account for the added space...
804 (max-width (+ (window-width) 2))
808 ;; determine the largest number of columns in the first row
810 (while (and w
(< width max-width
))
811 (setq width
(+ width
(car w
))
815 ;; refine it based on the following rows
818 (colw (make-vector numcols
0))
823 (aset colw i
(max (aref colw i
) (car w
)))
824 (setq w
(cdr w
) i
(1+ i
)))
827 (setq width
(+ width
(aref colw i
))
829 (if (and (< width max-width
)
830 (> width best-width
))
831 (setq col-widths colw
833 (setq numcols
(1- numcols
)))
835 (cons (or col-widths
(vector max-width
)) files
)))
837 (defun eshell-ls-find-column-lengths (files)
838 "Find the best fitting column lengths for FILES.
839 It will be returned as a vector, whose length is the number of columns
840 to use, and each member of which is the width of that column
841 \(including spacing)."
848 (+ 2 (length (car file
)))))
850 (max-width (+ (window-width) 2))
854 ;; refine it based on the following rows
856 (let* ((rows (ceiling (/ (length widths
)
859 (len (* rows numcols
))
863 (unless (or (= rows
0)
864 (<= (/ (length widths
) (float rows
))
865 (float (1- numcols
))))
866 (setq colw
(make-vector numcols
0))
869 (setq i
0 index
(1+ index
)))
872 (or (nth (+ (* i rows
) index
) w
) 0)))
873 (setq len
(1- len
) i
(1+ i
)))
876 (setq width
(+ width
(aref colw i
))
878 (if (>= width max-width
)
881 (setq col-widths colw
))
882 (if (>= numcols
(length widths
))
884 (setq numcols
(1+ numcols
))))))
887 (cons (vector max-width
) files
)
888 (setq numcols
(length col-widths
))
889 (let* ((rows (ceiling (/ (length widths
)
891 (len (* rows numcols
))
892 (newfiles (make-list len nil
))
898 (setq i
0 index
(1+ index
)))
899 (setcar (nthcdr j newfiles
)
900 (nth (+ (* i rows
) index
) files
))
901 (setq j
(1+ j
) i
(1+ i
)))
902 (cons col-widths newfiles
)))))
904 (defun eshell-ls-decorated-name (file)
905 "Return FILE, possibly decorated."
906 (if eshell-ls-use-colors
912 ((stringp (cadr file
))
916 'eshell-ls-directory
)
918 ((not (eshell-ls-filetype-p (cdr file
) ?-
))
921 ((and (/= (user-uid) 0) ; root can execute anything
922 (eshell-ls-applicable (cdr file
) 3
923 'file-executable-p
(car file
)))
924 'eshell-ls-executable
)
926 ((not (eshell-ls-applicable (cdr file
) 1
927 'file-readable-p
(car file
)))
928 'eshell-ls-unreadable
)
930 ((string-match eshell-ls-archive-regexp
(car file
))
933 ((string-match eshell-ls-backup-regexp
(car file
))
936 ((string-match eshell-ls-product-regexp
(car file
))
939 ((string-match eshell-ls-clutter-regexp
(car file
))
942 ((not (eshell-ls-applicable (cdr file
) 2
943 'file-writable-p
(car file
)))
945 (eshell-ls-highlight-alist
946 (let ((tests eshell-ls-highlight-alist
)
949 (if (funcall (caar tests
) (car file
) (cdr file
))
950 (setq value
(cdar tests
) tests nil
)
951 (setq tests
(cdr tests
))))
954 (add-text-properties 0 (length (car file
))
962 ;; generated-autoload-file: "esh-groups.el"
965 ;;; em-ls.el ends here