Bug#874003: nautilus: Nautilus does not launch applications

[Matthieu Imbert]

Here's a more detailed fix:

deleting ~/.config was not a very appealing fix for me since I don't 
want to lost everything :-)

When double clicking a file in nautilus, it ends up calling "gio open".

stracing gio:

$ strace -f gio open <some file> 2>&1 | grep '\.config'

it shows that at some point an xfce4 helper file is read (I do have xfce 
installed as well on my laptop):

stat("/home/<username>/.config/xfce4/helpers.rc", {st_mode=S_IFREG|0644, 
st_size=41, ...}) = 0

this file contained the following lines:
FileManager=nautilus
MailReader=icedove

I moved away this file and it fixes the issue.

Anyway I don't know why, at some point, gio reads this xfce file, it 
seems a bit strange.

For information here is the full ouput of

$ strace -f gio open <some file> 2>&1 | grep '\.config'
[pid 16711] access("/home/<username>/.config", R_OK|X_OK) = 0
[pid 16711] inotify_add_watch(7, "/home/<username>/.config", 
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR 
<unfinished ...>
[pid 16711] openat(AT_FDCWD, 
"/home/<username>/.config/gnome-mimeapps.list", O_RDONLY) = -1 ENOENT 
(No such file or directory)
[pid 16711] openat(AT_FDCWD, "/home/<username>/.config/mimeapps.list", 
O_RDONLY) = 8
mkdir("/home/<username>/.config", 0700)    = -1 EEXIST (File exists)
stat("/home/<username>/.config", {st_mode=S_IFDIR|0755, st_size=4096, 
...}) = 0
stat("/home/<username>/.config/xfce4/helpers.rc", {st_mode=S_IFREG|0644, 
st_size=41, ...}) = 0
openat(AT_FDCWD, "/home/<username>/.config/xfce4/helpers.rc", O_RDONLY) = 7

-- 
Matthieu