lvmdbusd: Add env variable to use session bus

export LVMDBUSD_SESSION=True to run on the session bus instead
of the system bus so that we can run the unit test without
installing the dbus conf file.

Signed-off-by: Tony Asleson <tasleson@redhat.com>

daemons/lvmdbusd/main.py

@@ -28,6 +28,7 @@ import sys
 from . import udevwatch
 from .utils import log_debug
 import argparse
+import os
 
 
 class Lvm(objectmanager.ObjectManager):
@@ -71,6 +72,8 @@ def main():
 						help="Dump debug messages", default=False,
 						dest='debug')
 
+	use_session = os.getenv('LVMDBUSD_USE_SESSION', False)
+
 	args = parser.parse_args()
 
 	cfg.DEBUG = args.debug
@@ -90,7 +93,11 @@ def main():
 	dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
 	GObject.threads_init()
 	dbus.mainloop.glib.threads_init()
-	cfg.bus = dbus.SystemBus()
+
+	if use_session:
+		cfg.bus = dbus.SessionBus()
+	else:
+		cfg.bus = dbus.SystemBus()
 	# The base name variable needs to exist for things to work.
 	# noinspection PyUnusedLocal
 	base_name = dbus.service.BusName(BASE_INTERFACE, cfg.bus)

test/dbus/lvmdbustest.py

@@ -44,7 +44,12 @@ def rs(length, suffix, character_set=string.ascii_lowercase):
 				for _ in range(length)) + suffix
 
 
-bus = dbus.SystemBus(mainloop=DBusGMainLoop())
+use_session = os.getenv('LVMDBUSD_USE_SESSION', False)
+
+if use_session:
+	bus = dbus.SessionBus(mainloop=DBusGMainLoop())
+else:
+	bus = dbus.SystemBus(mainloop=DBusGMainLoop())
 
 
 def mib(s):