Adding the following snippet to your .emacs file will cause Emacs’ dired mode to omit all files ignored by Git. This only works if you have dired-omit-mode on, which is ordinarily bound to Meta-o.
The code
Here is the code you would add to your .emacs file:
(add-hook ‘dired-load-hook #’(lambda nil (load “dired-x” t)))
(eval-after-load “dired-x”
‘(progn
(defvar dired-omit-regexp-orig (symbol-function ‘dired-omit-regexp))
(defun dired-omit-regexp ()
(let ((file (expand-file-name “.git”))
parent-dir)
(while (and (not (file-exists-p file))
(progn
(setq parent-dir
(file-name-directory
(directory-file-name
(file-name-directory file))))
;; Give up if we are already at the root dir.
(not (string= (file-name-directory file)
parent-dir))))
;; Move up to the parent dir and try again.
(setq file (expand-file-name “.git” parent-dir)))
;; If we found a change log in a parent, use that.
(if (file-exists-p file)
(let ((regexp (funcall dired-omit-regexp-orig)))
(assert (stringp regexp))
(concat
regexp
(if (> (length regexp) 0)
“\\|” “”)
“\\(“
(mapconcat
#’(lambda (str)
(concat “^”
(regexp-quote
(substring str 13
(if (= ?/ (aref str (1- (length str))))
(1- (length str))
nil)))
“$”))
(split-string (shell-command-to-string
“git clean -d -x -n”)
“\n” t)
“\\|”)
“\\)”))
(funcall dired-omit-regexp-orig))))))A note to fellow Emacs coders: I tried writing this as a piece of defadvice, rather than hijacking the definition of dired-omit-regexp, but for some reason it never called this function.
Did you call `(ad-activate ‘dired-omit-regexp)’? I always forget to do it.
Your posting software conveniently “fixed” all the quotes in your code to be pretty…
Ugh. I’ll have to find a way to stop it from doing that. Thanks.