#!/bin/sh

# with-session-bus.sh - run a program with a temporary D-Bus session daemon

#

# Copyright (C) 2007-2008 Collabora Ltd. <http://www.collabora.co.uk/>

#

# Copying and distribution of this file, with or without modification,

# are permitted in any medium without royalty provided the copyright

# notice and this notice are preserved.

set -e

me=with-session-bus

dbus_daemon_args="--print-address=5 --print-pid=6 --fork"

sleep=0

usage ()

{

  echo "usage: $me [options] -- program [program_options]" >&2

  echo "Requires write access to the current directory." >&2

  echo "" >&2

  echo "If \$WITH_SESSION_BUS_FORK_DBUS_MONITOR is set, fork dbus-monitor" >&2

  echo "with the arguments in \$WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT." >&2

  echo "The output of dbus-monitor is saved in $me-<pid>.dbus-monitor-logs" >&2

  exit 2

}

while test "z$1" != "z--"; do

  case "$1" in

  --sleep=*)

    sleep="$1"

    sleep="${sleep#--sleep=}"

    shift

    ;;

  --session)

    dbus_daemon_args="$dbus_daemon_args --session"

    shift

    ;;

  --config-file=*)

    # FIXME: assumes config file doesn't contain any special characters

    dbus_daemon_args="$dbus_daemon_args $1"

    shift

    ;;

  *)

    usage

    ;;

  esac

done

shift

if test "z$1" = "z"; then usage; fi

exec 5> $me-$$.address

exec 6> $me-$$.pid

cleanup ()

{

  pid=`head -n1 $me-$$.pid`

  if test -n "$pid" ; then

    if [ -n "$VERBOSE_TESTS" ]; then

      echo "Killing temporary bus daemon: $pid" >&2

    fi

    kill -INT "$pid"

  fi

  rm -f $me-$$.address

  rm -f $me-$$.pid

}

trap cleanup INT HUP TERM

dbus-daemon $dbus_daemon_args

if [ -n "$VERBOSE_TESTS" ]; then

  { echo -n "Temporary bus daemon is "; cat $me-$$.address; } >&2

  { echo -n "Temporary bus daemon PID is "; head -n1 $me-$$.pid; } >&2

fi

e=0

# These might be non-null when run from e.g. gnome-terminal 3.8, which uses

# an activatable service for its windows; we don't want to inherit them either

unset DBUS_STARTER_ADDRESS

unset DBUS_STARTER_BUS_TYPE

DBUS_SESSION_BUS_ADDRESS="`cat $me-$$.address`"

export DBUS_SESSION_BUS_ADDRESS

DBUS_SESSION_BUS_PID="`cat $me-$$.pid`"

export DBUS_SESSION_BUS_PID

if [ -n "$WITH_SESSION_BUS_FORK_DBUS_MONITOR" ] ; then

  echo -n "Forking dbus-monitor $WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT" >&2

  dbus-monitor $WITH_SESSION_BUS_FORK_DBUS_MONITOR_OPT \

        > $me-$$.dbus-monitor-logs 2>&1 &

fi

"$@" || e=$?

if test $sleep != 0; then

  sleep $sleep

fi

trap - INT HUP TERM

cleanup

exit $e