dired-async does not work with /sudo:: buffers

[jabranham]

From emacs -Q

(add-to-list 'load-path "path/to/async")

(require 'async)
(require 'dired-async)
(dired-async-mode)

then open a dired buffer with e.g.

C-x C-f /sudo::/etc

and make two files e.g. file.old and file.new, then type R on file.new and try to rename it to file.old. For me, nothing happens, other than "1 async job running" appearing on the modeline. It doesn't seem to ever finish.

[jwiegley]

If you look at your active processes, is there another Emacs running the whole time?

[thierryvolpiatto]

If you are using emacs-26+ see #80 and use (setq async-quiet-switch "-q"), it should fix your problem. This is an emacs bug that should be fixed upstream.

[jabranham]

Yes, there is another Emacs session running.

This is using Emacs 25.3.

[thierryvolpiatto]

This is not reproducible.

Also I was wrong above for 26+, there is no need to set async-quiet-switch to "-q", I didn't remember dired-async does it automatically when needed.

[jabranham]

I'm surprised this isn't reproducible for you. It happens every time for me on Emacs 25.3 following the steps at the top. I'm running Arch linux currently, here's some build info:

In GNU Emacs 25.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.26)
 of 2017-12-04 built on arojas
Windowing system distributor 'The X.Org Foundation', version 11.0.11905000
Configured using:
 'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
 --localstatedir=/var --with-x-toolkit=gtk3 --with-xft --with-modules
 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
 -fno-plt' CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

[thierryvolpiatto]

Alex Branham notifications@github.com writes:

I'm surprised this isn't reproducible for you.

I followed the exact steps you provided from emacs -Q and couldn't reproduce.

Can't reproduce also when copying/renaming from Helm.

Note that I use dired-async for all my copying/renaming/symlinking tasks since long time now without failures (except the emacs-26+ bug mentioned previously).

It happens every time for me on Emacs 25.3 following the steps at the top.

Do you have a ~/.authinfo.gpg file ?

If not try to add one with a line like this:

default port sudo login root password xxxxxxx

-- Thierry

[thierryvolpiatto]

Ah! I could reproduce without the .authinfo file, so yes that's the problem, you need a .authinfo.gpg file to copy/rename asynchronously.

[thierryvolpiatto]

That's now explained in README