GNU bug report logs - #77402
31.0.50; Tramp: file-writable-p broken

Previous Next

Package: emacs;

Reported by: Gerd Möllmann <gerd.moellmann <at> gmail.com>

Date: Mon, 31 Mar 2025 08:22:02 UTC

Severity: normal

Found in version 31.0.50

Fixed in version 30.2

Done: Michael Albinus <michael.albinus <at> gmx.de>

Bug is archived. No further changes may be made.

Full log

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50; Tramp: file-writable-p broken
Date: Mon, 31 Mar 2025 10:21:25 +0200

In current master, Magit over Tramp/ssh stopped working. The first thing
I noticed in the log with tramp-verbose == 6 is

  08:33:37.401799 tramp-get-remote-tmpdir (1) # File error: Directory /ssh:mini:/tmp not accessible

This is caused by file-writable-p returning nil for the remote /tmp dir;
/tmp is a symlink to private/tmp on macOS.

I could bisect this to

  b8104dadbf285d12c356d4cddd28ac3eaf05f263 is the first bad commit
  commit b8104dadbf285d12c356d4cddd28ac3eaf05f263 (HEAD)
  Author: Michael Albinus <michael.albinus <at> gmx.de>
  Date:   Sun Mar 16 14:17:38 2025 +0100
      Tramp: Handle symlinks to non-existing targets better

Before this change

  (tramp-autoload-file-name-handler 'file-writable-p "/ssh:mini:/tmp")
  => t

After the change, it returns nil.
This bug report was last modified 52 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.