[gnome-music] Exit gracefully if we can't connect to tracker

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit a062ad1bb2fb2abee8de300ebd36463904ff98f3
Author: Vadim Rutkovsky <vrutkovs redhat com>
Date:   Thu Apr 17 13:21:23 2014 +0200

    Exit gracefully if we can't connect to tracker
    
    https://bugzilla.gnome.org/show_bug.cgi?id=724112

 gnomemusic/view.py    |    8 +++++++-
 gnomemusic/widgets.py |    9 ++++++++-
 gnomemusic/window.py  |    7 ++++++-
 3 files changed, 21 insertions(+), 3 deletions(-)
---
diff --git a/gnomemusic/view.py b/gnomemusic/view.py
index f267fcb..c1b3112 100644
--- a/gnomemusic/view.py
+++ b/gnomemusic/view.py
@@ -51,7 +51,13 @@ from gnomemusic import log
 import logging
 logger = logging.getLogger(__name__)
 
-tracker = Tracker.SparqlConnection.get(None)
+try:
+    tracker = Tracker.SparqlConnection.get(None)
+except Exception as e:
+    from sys import exit
+    logger.error("Cannot connect to tracker, error '%s'\Exiting" % str(e))
+    exit(1)
+
 playlists = Playlists.get_default()
 
 
diff --git a/gnomemusic/widgets.py b/gnomemusic/widgets.py
index 19e4c94..3b6ae7a 100644
--- a/gnomemusic/widgets.py
+++ b/gnomemusic/widgets.py
@@ -44,7 +44,14 @@ import logging
 logger = logging.getLogger(__name__)
 
 playlist = Playlists.get_default()
-tracker = Tracker.SparqlConnection.get(None)
+
+try:
+    tracker = Tracker.SparqlConnection.get(None)
+except Exception as e:
+    from sys import exit
+    logger.error("Cannot connect to tracker, error '%s'\Exiting" % str(e))
+    exit(1)
+
 ALBUM_ART_CACHE = AlbumArtCache.get_default()
 if Gtk.Widget.get_default_direction() is not Gtk.TextDirection.RTL:
     NOW_PLAYING_ICON_NAME = 'media-playback-start-symbolic'
diff --git a/gnomemusic/window.py b/gnomemusic/window.py
index ca55ca2..7436beb 100644
--- a/gnomemusic/window.py
+++ b/gnomemusic/window.py
@@ -45,7 +45,12 @@ import logging
 logger = logging.getLogger(__name__)
 
 playlist = Playlists.get_default()
-tracker = Tracker.SparqlConnection.get(None)
+try:
+    tracker = Tracker.SparqlConnection.get(None)
+except Exception as e:
+    from sys import exit
+    logger.error("Cannot connect to tracker, error '%s'\Exiting" % str(e))
+    exit(1)
 
 
 class Window(Gtk.ApplicationWindow):