GNU bug report logs - #76596
30.1; dired-movement-style does not honor subdir operations

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Message #8 received at 76596 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Charles Choi <kickingvegas <at> gmail.com>, Juri Linkov <juri <at> linkov.net>
Cc: 76596 <at> debbugs.gnu.org
Subject: Re: bug#76596: 30.1;
 dired-movement-style does not honor subdir operations
Date: Thu, 27 Feb 2025 09:53:01 +0200

> From: Charles Choi <kickingvegas <at> gmail.com>
> Date: Wed, 26 Feb 2025 12:06:14 -0800
> 
> 
> **** Title
> dired-movement-style does not honor subdir operations.
> 
> **** Description
> 
> Setting dired-movement-style to a non-nil value prevents moving the point to 
> 
> **** Environment
> GNU Emacs 30.1 (build 2, aarch64-apple-darwin24.3.0, NS appkit-2575.40 Version 15.3.1 (Build 24D70)) of 2025-02-25
> i--8<---------------cut here---------------end--------------->8---
> 
> **** Steps to Reproduce
> 1. Open Dired on a directory with sub-directories.
> 2. Open subdir in Dired.
> 3. M-x customize-variable dired-movement-style
> 4. Set dired-movement-style value to "Cycle through non-empty lines"
> 5. Navigate point via n, p, C-p, C-n to subdir
> 
> 
> **** Expected Result
> Point should land on subdir.
> 
> **** Actual Result
> Point avoids subdir, preventing running operations on it such as removing it (C-u k).

Juri, this seems to be due to your changes in commit 29d42d9158ae:
dired-between-files returns non-nil when on a subdirectory line, so
Dired thinks it's an empty line.

Charles, does the patch below give good results?

Juri, do you agree with the patch?  It should go to the release
branch.

diff --git a/lisp/dired.el b/lisp/dired.el
index 90d944c..17c8ba5 100644
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -2888,15 +2888,19 @@ dired--move-to-next-line
           (setq wrapped t))
          ;; `bounded': go back to the last non-empty line.
          (dired-movement-style ; Either 'bounded or anything else non-nil.
-          (while (and (dired-between-files) (not (zerop arg)))
+          (while (and (dired-between-files)
+                      (not (dired-get-subdir))
+                      (not (zerop arg)))
             (funcall jumpfun (- moving-down))
             ;; Point not moving means infinite loop.
             (if (= old-position (point))
                 (setq arg 0)
               (setq old-position (point))))
           ;; Encountered a boundary, so let's stop movement.
-          (setq arg (if (dired-between-files) 0 moving-down)))))
-      (unless (dired-between-files)
+          (setq arg (if (and (dired-between-files)
+                             (not (dired-get-subdir)))
+                        0 moving-down)))))
+      (unless (and (dired-between-files) (not (dired-get-subdir)))
         ;; Has moved to a non-empty line.  This movement does
         ;; make sense.
         (cl-decf arg moving-down))

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