xdg-app and gtkmm

[Alexander Larsson]

On ons, 2015-12-09 at 13:55 +0100, Murray Cumming wrote:
> On Tue, 2015-12-08 at 14:53 +0100, Alexander Larsson wrote:
> > On tis, 2015-12-08 at 12:47 +0100, Murray Cumming wrote:
> > > $ xdg-app run io.github.murraycu.PrefixSuffix
> > > 
> > > ** (prefixsuffix:2): WARNING **: Couldn't connect to
> > > accessibility
> > > bus:
> > > Failed to connect to socket /tmp/dbus-PEhoQVzw0X: Connection
> > > refused
> > > Gtk-Message: Failed to load module "canberra-gtk-module"
> > > Gtk-Message: Failed to load module "canberra-gtk-module"
> > > 
> > > (prefixsuffix:2): dconf-WARNING **: unable to open named profile
> > > (child): using the null configuration.
> > 
> > This is weird, I've not seen it myself. I build prefixsuffix, but I
> > could not reproduce it here. I do get the accessibility bus
> > warnings
> > (have not ever researched those in detail), but dconf works.
> > 
> > What distro are you on? Maybe its some dconf setup difference?
> 
> Ubuntu Wily.
> 
> > After a build, you can debug the app with: 
> >   xdg-app build app bash
> > 
> > then you can from inside the "sandbox" e.g. run prefixsuffix in
> > gdb,
> > or
> > strace it to see what dconf is trying to do.
> 
> Thanks. But I don't have the problem when running it like that. Only
> when running it via xdg-app run.
> 
> Is there any other way to find out what files it might be trying to
> access while running under xdg-app run?

Yes, you can run:

  xdg-app run --command=bash -d io.github.murraycu.PrefixSuffix

That will give you a shell in the same kind of sandbox as the app, but
with (from -d) a sdk runtime instead of the regular one.

-- 
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 Alexander Larsson                                            Red Hat, Inc 
       alexl at redhat.com            alexander.larsson at gmail.com 
He's a lonely devious romance novelist on the run. She's a hard-bitten 
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