snap apps require hardcode --desktop-file-hint to launch

[Renato Araujo Oliveira Filho]

Apps installed by snap does not launch from dash icon unless you hardcode the wrapper file adding "--desktop_file_hint=unity8" on the argument list.

[Launchpad Janitor (janitor)]

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

[Bill Filler (bfiller)]

when launching a snap from the dash it's also displaying a blank "unity8" window in addition to the functional app window. Assuming that is because of this workaround using --desktop_file_hint=unity8

you can test with ubuntu-calendar-app or address-book-app from store:
sudo snap install --edge --force-dangerous --devmode ubuntu-calendar-app

[Michael Terry (mterry)]

I'm guessing this is a UAL-side issue, perhaps fixed by https://code.launchpad.net/~ted/ubuntu-app-launch/install-root/+merge/305762 ?

[Ted Gould (ted)]

Ubuntu Calendar App doesn't have a desktop file that matches the app name in the YAML file. The desktop file is:

com.ubuntu.calendar_calendar.desktop

And the YAML has a app name of:

ubuntu-calendar-app

This is an invalid snap.

[Ted Gould (ted)]

Revision 3 of the snap, version 0.1.

[Renato Araujo Oliveira Filho (renatofilho)]

ubuntu-calendar-app is already on Rev. 6. And it has the desktop file as "ubuntu-calendar-app.desktop" inside of setup/gui/ directory.

[Ted Gould (ted)]

So we think this is qtmir resolving the apparmor label incorrectly. Apparmor labels are now "snap.$(pkg).$(app)" instead of "$(pkg)_$(app)" so it isn't getting the AppID of the application correctly.

[Nick Dedekind (nick-dedekind)]

Qtmir doesn't deal with apparmor. We resolve short app ids from long ones in the format "$(pkg)_$(app)" which is documented by http://bazaar.launchpad.net/~indicator-applet-developers/ubuntu-app-launch/trunk.16.10/view/head:/libubuntu-app-launch/appid.h#L118