我用elisp写了一些脚本,它合并了ls -l和du(显示实际文件夹大小而不是用ls写的东西)。我将其命名为lsd。这是屏幕截图:
http://i.imgur.com/PfSq6.png
现在,我将列出实现。我不是一个好的程序员,因此,我将感谢您提供有关错误和可以改进的更多信息。
lsd.el
#!/usr/bin/emacs --script
(progn
(setq argz command-line-args-left)
(setq folder "./")
(while argz
;; (message (car argz))
(if (/= ?- (aref (car argz) 0))
(setq folder (car argz)))
(setq argz (cdr argz)))
(if (/= ?/ (aref folder (1- (length folder)))) (setq folder (concat folder "/")))
(switch-to-buffer " *lsd*")
(erase-buffer)
(shell-command (concat "ls -l -h --color=always " " " (apply 'concat (mapcar '(lambda(arg) (concat arg " ")) command-line-args-left))) (current-buffer))
(switch-to-buffer " *du*")
(erase-buffer)
(shell-command (concat "du -h -d 1 " folder) (current-buffer))
(goto-char 1)
(while (search-forward "Permission denied" (point-max) t nil)
(goto-char (point-at-bol))
(let ((beg (point)))
(forward-line)
(delete-region beg (point)))) ; Remove all permission denied lines, thus show only permitted size.
(goto-char 1)
(while (and (search-forward folder (point-max) t nil) (/= (point-max) (1+ (point-at-eol)))) ; we do not need last line(the folder itself), so this line is something complex.
(setq DIR (buffer-substring (point) (point-at-eol)))
(goto-char (point-at-bol))
(setq SIZE (buffer-substring (point) (1- (search-forward " " (point-at-eol) nil nil))))
(goto-char (point-at-eol))
(switch-to-buffer " *lsd*")
(goto-char 1)
(if (search-forward DIR (point-max) t nil)
(progn
(goto-char (point-at-bol))
(search-forward-regexp "[0-9]+" (point-at-eol) nil nil)
(search-forward-regexp " *[0-9]+[^ \n]*[ \n]*" (point-at-eol) nil nil)
;; If ls have options, that makes some numbers before size column - we are doomed. (-s, for example)
(setq SIZE (concat SIZE " "))
(while (< (length SIZE) (length (match-string 0))) (setq SIZE (concat " " SIZE)))
(replace-match SIZE)))
(switch-to-buffer " *du*"))
(switch-to-buffer " *lsd*")
(message "%s" (buffer-substring (point-min) (point-max)))
(defun error(&rest args) args)
(defun message(&rest args) args)) ; Do not show any messages.
资讯系统
(我使此脚本启动emacs而不加载脚本以外的任何内容。如果可以更轻松地完成操作,请指出这一点)
#/bin/bash
emacs -Q --script /usr/local/bin/lsd.el $@
这是问题所在:如何在Dired中使用此lsd?
我可以改变某些东西以使用lsd而不是ls吗?
我是否可以在oldls中重命名ls,并制作一些ls bash脚本,如果没有--lsd标志,则将所有参数传递给ls,如果--lsd在这里,则将所有参数传递给lsd?
这是个好主意吗?
最佳答案
我不知道这是否是最有效的处理方式,但我还是Emacs初学者。但是,这就是我的做法。
这是如何执行此操作的示例:
;; Put this in your init file
(require 'ls-lisp)
(setq ls-lisp-use-insert-directory-program T)
(setq insert-directory-program "~/path/to/lsd")
让我知道这是否适合您。我在Windows上使用emacs,因此不确定该端口移植到linux的程度(即ls仿真部分)。