bug#32325: 27.0.50; dired-create-directory: timing issue in remote machine

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

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Eli Zaretskii <eliz@gnu.org> writes:

Hi,

>> emacs -Q -l dired-aux
>> ;; Connect with Dired into a remote machine:
>> (dired "/ssh:USER@MACHINE:PATH")
>> 
>> ;; I) Create a directory
>> + a/b RET
>> 
>> ;; II) Right after run this:
>> 
>> (file-exists-p (dired-get-filename))
>> => nil
>> 
>> ;; Sometimes I get `t' sometimes `nil'.  Maybe a timing issue?
>
> I think Tramp uses some caching?  Michael will know for sure.

Indeed.  Could you (Tino), pls, test the appended patch?

Best regards, Michael.


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diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index 2d253506dd..86e82d4092 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -2547,7 +2547,11 @@ tramp-sh-handle-make-directory
   "Like `make-directory' for Tramp files."
   (setq dir (expand-file-name dir))
   (with-parsed-tramp-file-name dir nil
-    (tramp-flush-directory-properties v (file-name-directory localname))
+    ;; When PARENTS is non-nil, DIR could be a chain of non-existent
+    ;; directories a/b/c/...  Instead of checking, we simply flush the
+    ;; whole cache.
+    (tramp-flush-directory-properties
+     v (if parents "/" (file-name-directory localname)))
     (save-excursion
       (tramp-barf-unless-okay
        v (format "%s %s"