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 sleep=0
  19
  20 usage ()
  21 {
  22   echo "usage: $me [options] -- program [program_options]" >&2
  23   echo "Requires write access to the current directory." >&2
  24   echo "" >&2
  25   echo "If \$WITH_SESSION_BUS_FORK_DBUS_MONITOR is set, fork dbus-monitor" >&2
  26   echo "with the arguments in \$WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT." >&2
  27   echo "The output of dbus-monitor is saved in $me-<pid>.dbus-monitor-logs" >&2
  28   exit 2
  29 }
  30
  31 while test "z$1" != "z--"; do
  32   case "$1" in
  33   --sleep=*)
  34     sleep="$1"
  35     sleep="${sleep#--sleep=}"
  36     shift
  37     ;;
  38   --session)
  39     dbus_daemon_args="$dbus_daemon_args --session"
  40     shift
  41     ;;
  42   --config-file=*)
  43     # FIXME: assumes config file doesn't contain any special characters
  44     dbus_daemon_args="$dbus_daemon_args $1"
  45     shift
  46     ;;
  47   *)
  48     usage
  49     ;;
  50   esac
  51 done
  52 shift
  53 if test "z$1" = "z"; then usage; fi
  54
  55 exec 5> $me-$$.address
  56 exec 6> $me-$$.pid
  57
  58 cleanup ()
  59 {
  60   pid=`head -n1 $me-$$.pid`
  61   if test -n "$pid" ; then
  62     echo "Killing temporary bus daemon: $pid" >&2
  63     kill -INT "$pid"
  64   fi
  65   rm -f $me-$$.address
  66   rm -f $me-$$.pid
  67 }
  68
  69 trap cleanup INT HUP TERM
  70 dbus-daemon $dbus_daemon_args
  71
  72 { echo -n "Temporary bus daemon is "; cat $me-$$.address; } >&2
  73 { echo -n "Temporary bus daemon PID is "; head -n1 $me-$$.pid; } >&2
  74
  75 e=0
  76 DBUS_SESSION_BUS_ADDRESS="`cat $me-$$.address`"
  77 export DBUS_SESSION_BUS_ADDRESS
  78
  79 if [ -n "$WITH_SESSION_BUS_FORK_DBUS_MONITOR" ] ; then
  80   echo -n "Forking dbus-monitor $WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT" >&2
  81   dbus-monitor $WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT \
  82         > $me-$$.dbus-monitor-logs 2>&1 &
  83 fi
  84
  85 "$@" || e=$?
  86
  87 if test $sleep != 0; then
  88   sleep $sleep
  89 fi
  90
  91 trap - INT HUP TERM
  92 cleanup
  93
  94 exit $e