xdg-open doesn't respect gnome3 associations

[Николай Кузьмин]

xdg-open internaly uses "gvfs-open --help" to check if gvfs-open is present and functional, but gvfs-open is deprecated in new gnome (3.25.90) and "gvfs-open --help" returns with error code = 1.
gvfs-open still can be used to open files and urls, new way to open associated files is "gio open ARG".

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xdg-utils 1.1.1-1ubuntu2
ProcVersionSignature: Ubuntu 4.12.0-12.13-generic 4.12.8
Uname: Linux 4.12.0-12-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon Sep 11 23:59:06 2017
InstallationDate: Installed on 2017-04-10 (154 days ago)
InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Beta amd64 (20170408)
PackageArchitecture: all
SourcePackage: xdg-utils
UpgradeStatus: Upgraded to artful on 2017-09-10 (1 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Mario Abarca (knkillname)]

I can reproduce this problem even from a Live Ubuntu 17.10 session.

Here's a provisional fix for this problem: force gnome-open instead of xdg-open. This also fixes issues with texdoc, google-crhome and other KDE-apps. Here are the commands I used at the Terminal:

$ mkdir --parents ~/bin
$ ln --symbolic /usr/bin/gnome-open ~/bin/xdg-open

Restart your session and you are good to go (until a real fix is issued).

[Николай Кузьмин (nikolay-kuzmin)]

I've investigated a bit, this is actually gvfs-open bug.
It uses '[ str1 == str2 ]' to compare strings, which is wrong. When /bin/sh is a bash it is ok, bash builtin forgives that mistake, but when /bin/sh is a symlink to a dash shell, dash's builtin '[' command fails.
Filled bug https://bugs.launchpad.net/ubuntu/+source/gvfs/+bug/1720199

[Sebastien Bacher (seb128)]

The issue was fixed in https://git.gnome.org/browse/gvfs/commit/?h=gnome-3-26&id=ffbe2ad which is included now in the current artful version