bug#58919: 28.2; dired-copy-file-recursive fails to overwrite directory

[Michael Albinus <michael.albinus@gmx.de>]

Paul Eggert <eggert@cs.ucla.edu> writes:

Hi Paul,

> The simplest fix I can see is to enhance make-directory so that it
> returns t if the directory already existed and PARENTS was given, nil
> on any other successful return. This would require changes to Tramp to
> avoid races there. I plan to post a proposed patch for comment.

To make it more fun, there are several Tramp implementations of that
function, and also other ones. Xref, running in the lisp/ tree for
"defun.*make-directory", returns

--8<---------------cut here---------------start------------->8---
lisp/dired.el
1911: (defun dired--make-directory-clickable ()
lisp/files.el
6203: (defun make-directory (dir &optional parents)
lisp/gnus/gnus-group.el
3120: (defun gnus-group-make-directory-group (dir)
lisp/gnus/gnus-util.el
726: (defun gnus-make-directory (directory)
lisp/htmlfontify.el
1844: (defun hfy-make-directory (dir)
lisp/ido.el
2994: (defun ido-make-directory (&optional dir)
lisp/net/ange-ftp.el
4125: (defun ange-ftp-make-directory (dir &optional parents)
4530: (defun ange-ftp-real-make-directory (&rest args)
lisp/net/tramp-adb.el
411: (defun tramp-adb-handle-make-directory (dir &optional parents)
lisp/net/tramp-crypt.el
800: (defun tramp-crypt-handle-make-directory (dir &optional parents)
lisp/net/tramp-fuse.el
128: (defun tramp-fuse-handle-make-directory (dir &optional parents)
lisp/net/tramp-gvfs.el
1560: (defun tramp-gvfs-handle-make-directory (dir &optional parents)
lisp/net/tramp-sh.el
2559: (defun tramp-sh-handle-make-directory (dir &optional parents)
lisp/net/tramp-smb.el
1172: (defun tramp-smb-handle-make-directory (dir &optional parents)
1192: (defun tramp-smb-handle-make-directory-internal (directory)
lisp/net/tramp-sudoedit.el
626: (defun tramp-sudoedit-handle-make-directory (dir &optional parents)
lisp/obsolete/autoload.el
725: (defun make-directory-autoloads (dir output-file)
lisp/url/url-dav.el
761: (defun url-dav-make-directory (url &optional _parents)
--8<---------------cut here---------------end--------------->8---

Best regards, Michael.