Ubuntu/snapcraft-desktop-helpers

common/desktop-exports: make PulseAudio socket available in snap-specific XDG_RUNTIME_DIR

Simplify PulseAudio socket setup. Drop the symlinks and instead set up
PULSE_SERVER to point to the original XDG_RUNTIME_DIR socket.

Signed-off-by: Maciej Borzecki <maciej.zenon.borzecki@canonical.com>

…ific XDG_RUNTIME_DIR

Applications using libpulse (eg. Spotify, VLC) will probe
$XDG_RUNTIME_DIR/pulse/native as one of locations where PulseAudio socket may be
available.

In case of snaps, the XDG_RUNTIME_DIR is set to /run/user/$(id -u)/snap.<snap>.
If PulseAudio has a socket in the original $XDG_RUNTIME_DIR, make sure that it's
also available in snap-specific one.

Signed-off-by: Maciej Borzecki <maciej.zenon.borzecki@canonical.com>

Allow apps that don't support wayland natively to run on wayland through X11,

…ugh X11,

by defining the DISABLE_WAYLAND environment variable.

common: add $XDG_DATA_HOME back to $XDG_DATA_DIRS: it is needed for GSettings with old GLib

…Settings with old GLib

Use caches from runtime if they exist

common: write a user fonts.conf file rather than symlinking fonts into $XDG_DATA_HOME

…ts.conf file

This way we can point at multiple snap font directories (e.g. bundled
with app vs. bundled with platform snap), and also expose fonts in the
user's real home directory.

…piled file

Added GI_TYPELIB_PATH to find GjsPrivate typelib needed by gjs apps

Copy gsettings overrides along with schemas

Mangle $SNAP to work around path issues on Fedora

Mangle $SNAP to work around path issues on Fedora

…nap. We need to handle that case and reset $SNAP

Updated for gnome-3-26-1604

Ensure XDG_CONFIG_HOME is set and run xdg-user-dirs-update

adjust for new desktop interfaces

See https://forum.snapcraft.io/t/the-desktop-interfaces/2042 for details.

demos/gtk3/snapcraft.yaml:
- remove x11 (already included with unity7)
- add desktop, desktop-legacy and wayland

snapcraft.yaml: rephrase and update for desktop, desktop-legacy and wayland

update init to fix cases where the helper exits

When running the desktop-gnome-platform helper, it will exit part-way through if the platform interface isn't connected. Because the init part of the script is run before this then the needs_update/.last_revision will be set causing the helper to not compile the gnome schemas on the next launch, even if the platform interface is correctly connected. This causes gnome apps to die until either removed and reinstalled or an updated version is installed causing the .last_revision to no-longer match

this pr removes the setting of .last_revision in init deferring that to mark-and-exec.

prefer wayland if wayland detected and create compat symlink