cask-dbus-run-session-if-needed

#!/bin/sh
# Usage: cask-dbus-run-session-if-needed PROGRAM [ARGUMENTS]
# If the session bus is not available it is spawned and wrapper round our program
# Otherwise we spawn our program directly
drs=
if [ -z "${DBUS_SESSION_BUS_ADDRESS}" ]
then
    drs=dbus-run-session
fi
exec ${drs} "$@"