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emacs/dired: drop non-standard switches on Windows

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On Windows (or systems that don't support ls),
ls-lisp-use-insert-directory-program will be nil. In these cases, strip
out non-standard switches so they don't throw an error and make dired unusuable.

Fixes #3939
This commit is contained in:
Henrik Lissner 2021-04-14 17:40:57 -04:00
parent 0683861f3f
commit 33af1f98b4
1 changed files with 7 additions and 5 deletions
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12
modules/emacs/dired/config.el
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@ -36,12 +36,14 @@
(setq dired-listing-switches (string-join args " ")) (setq dired-listing-switches (string-join args " "))
(add-hook! 'dired-mode-hook (add-hook! 'dired-mode-hook
(defun +dired-disable-gnu-ls-flags-in-tramp-buffers-h () (defun +dired-disable-gnu-ls-flags-maybe-h ()
"Fix #1703: dired over TRAMP displays a blank screen. "Remove extraneous switches from `dired-actual-switches' when it's
uncertain that they are supported (e.g. over TRAMP or on Windows).
This is because there's no guarantee the remote system has GNU ls, which is the Fixes #1703: dired over TRAMP displays a blank screen.
only variant that supports --group-directories-first." Fixes #3939: unsortable dired entries on Windows."
(when (file-remote-p default-directory) (when (or (file-remote-p default-directory)
(not (bound-and-true-p ls-lisp-use-insert-directory-program)))
(setq-local dired-actual-switches (car args)))))) (setq-local dired-actual-switches (car args))))))
;; Don't complain about this command being disabled when we use it ;; Don't complain about this command being disabled when we use it