tools/with-session-bus.sh

   1 #!/bin/sh
   2 # with-session-bus.sh - run a program with a temporary D-Bus session daemon
   3 #
   4 # The canonical location of this program is the telepathy-glib tools/
   5 # directory, please synchronize any changes with that copy.
   6 #
   7 # Copyright (C) 2007-2008 Collabora Ltd. <http://www.collabora.co.uk/>
   8 #
   9 # Copying and distribution of this file, with or without modification,
  10 # are permitted in any medium without royalty provided the copyright
  11 # notice and this notice are preserved.
  12
  13 set -e
  14
  15 me=with-session-bus
  16
  17 dbus_daemon_args="--print-address=5 --print-pid=6 --fork"
  18
  19 usage ()
  20 {
  21   echo "usage: $me [options] -- program [program_options]" >&2
  22   echo "Requires write access to the current directory." >&2
  23   echo "" >&2
  24   echo "If \$WITH_SESSION_BUS_FORK_DBUS_MONITOR is set, fork dbus-monitor" >&2
  25   echo "with the arguments in \$WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT." >&2
  26   echo "The output of dbus-monitor is saved in $me-<pid>.dbus-monitor-logs" >&2
  27   exit 2
  28 }
  29
  30 while test "z$1" != "z--"; do
  31   case "$1" in
  32   --session)
  33     dbus_daemon_args="$dbus_daemon_args --session"
  34     shift
  35     ;;
  36   --config-file=*)
  37     # FIXME: assumes config file doesn't contain any special characters
  38     dbus_daemon_args="$dbus_daemon_args $1"
  39     shift
  40     ;;
  41   *)
  42     usage
  43     ;;
  44   esac
  45 done
  46 shift
  47 if test "z$1" = "z"; then usage; fi
  48
  49 exec 5> $me-$$.address
  50 exec 6> $me-$$.pid
  51
  52 cleanup ()
  53 {
  54   pid=`head -n1 $me-$$.pid`
  55   if test -n "$pid" ; then
  56     echo "Killing temporary bus daemon: $pid" >&2
  57     kill -INT "$pid"
  58   fi
  59   rm -f $me-$$.address
  60   rm -f $me-$$.pid
  61 }
  62
  63 trap cleanup INT HUP TERM
  64 dbus-daemon $dbus_daemon_args
  65
  66 { echo -n "Temporary bus daemon is "; cat $me-$$.address; } >&2
  67 { echo -n "Temporary bus daemon PID is "; head -n1 $me-$$.pid; } >&2
  68
  69 e=0
  70 DBUS_SESSION_BUS_ADDRESS="`cat $me-$$.address`"
  71 export DBUS_SESSION_BUS_ADDRESS
  72
  73 if [ -n "$WITH_SESSION_BUS_FORK_DBUS_MONITOR" ] ; then
  74   echo -n "Forking dbus-monitor $WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT" >&2
  75   dbus-monitor $WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT \
  76         &> $me-$$.dbus-monitor-logs &
  77 fi
  78
  79 "$@" || e=$?
  80
  81 trap - INT HUP TERM
  82 cleanup
  83
  84 exit $e