Bug 1328153 - Change Linux notify to use the system command notify-se…

…nd to avoid freedesktop dependency, r=gps

--HG--
extra : rebase_source : f9181c91827f5b67b5a9be3af81c08d51c4b0226

python/mozbuild/mozbuild/base.py

@@ -386,16 +386,13 @@ def notify(self, msg):
                     '-message', msg], ensure_exit_code=False)
             elif sys.platform.startswith('linux'):
                 try:
-                    import dbus
-                except ImportError:
-                    raise Exception('Install the python dbus module to '
-                        'get a notification when the build finishes.')
-                bus = dbus.SessionBus()
-                notify = bus.get_object('org.freedesktop.Notifications',
-                                        '/org/freedesktop/Notifications')
-                method = notify.get_dbus_method('Notify',
-                                                'org.freedesktop.Notifications')
-                method('Mozilla Build System', 0, '', msg, '', [], [], -1)
+                    notifier = which.which('notify-send')
+                except which.WhichError:
+                    raise Exception('Install notify-send (usually part of '
+                        'the libnotify package) to get a notification when '
+                        'the build finishes.')
+                self.run_process([notifier, '--app-name=Mozilla Build System',
+                    'Mozilla Build System', msg], ensure_exit_code=False)
             elif sys.platform.startswith('win'):
                 from ctypes import Structure, windll, POINTER, sizeof
                 from ctypes.wintypes import DWORD, HANDLE, WINFUNCTYPE, BOOL, UINT