#!/bin/sh
# Debian xserver-xorg package post-installation script
# Copyright 1998-2004 Branden Robinson.
# Copyright 2004-2005 Canonical Ltd.
# Licensed under the GNU General Public License, version 2.  See the file
# /usr/share/common-licenses/GPL or <http://www.gnu.org/copyleft/gpl.txt>.
# Acknowledgements to Stephen Early, Mark Eichin, and Manoj Srivastava.

set -e

# source debconf library
. /usr/share/debconf/confmodule

THIS_PACKAGE=xserver-xorg
THIS_SCRIPT=postinst

#INCLUDE_SHELL_LIB#

if [ -e /etc/default/xorg ]; then
  . /etc/default/xorg
fi

# the error-out function
bomb () {
  echo "$PROGNAME: error: $*" | fold -s -w "${COLUMNS:-80}" >&2
  exit 1
}

debug_echo () {
  # Syntax: debug_echo message ...
  if [ -n "$DEBUG_XORG_DEBCONF" ] || [ "$DEBCONF_DEBUG" = "user" ] \
    || [ "$DEBCONF_DEBUG" = '.*' ]; then
    DEBUG_XORG_PACKAGE="yes" observe "$*"
  fi
}

CONFIG_DIR="/etc/X11"
CONFIG_AUX_DIR=/var/lib/x11
SERVER_SYMLINK="$CONFIG_DIR/X"
XORGCONFIG="$CONFIG_DIR/xorg.conf"
CONFIG_AUX_DIR="/var/lib/x11"
SERVER_SYMLINK_CHECKSUM="$CONFIG_AUX_DIR/${SERVER_SYMLINK##*/}.md5sum"
SERVER_SYMLINK_ROSTER="$CONFIG_AUX_DIR/${SERVER_SYMLINK##*/}.roster"
XORGCONFIG_CHECKSUM="$CONFIG_AUX_DIR/${XORGCONFIG##*/}.md5sum"
XORGCONFIG_ROSTER="$CONFIG_AUX_DIR/${XORGCONFIG##*/}.roster"
THIS_SERVER=/usr/bin/Xorg

debug_report_status () {
  # Syntax: debug_report_status command exit_status
  debug_echo "$1 exited with status $2"
}

debug_echo "Configuring $THIS_PACKAGE."

#DEBHELPER#

# only mess with the server symlink file if it does not exist.  otherwise,
# assume that's the way the user wants it.
if ! [ -e "$SERVER_SYMLINK" ]; then
  ln -s "$THIS_SERVER" "$SERVER_SYMLINK"
# recover from an old bug
elif [ `readlink "$SERVER_SYMLINK"` = "/bin/true" ]; then
  rm -f "$SERVER_SYMLINK"
  ln -s "$THIS_SERVER" "$SERVER_SYMLINK"
fi

if [ -n "$UPGRADE" ]; then
    if dpkg --compare-versions "$2" le "1:7.3+5"; then
        # Clean up our old crap
        for QUESTION in "shared/default-x-server" \
                        "xserver-xorg/autodetect_mouse" \
                        "xserver-xorg/autodetect_monitor" \
                        "xserver-xorg/autodetect_video_card" \
                        "xserver-xorg/config/device/identifier" \
                        "xserver-xorg/config/monitor/selection-method" \
                        "xserver-xorg/config/monitor/screen-size" \
                        "xserver-xorg/config/monitor/mode-list" \
                        "xserver-xorg/config/monitor/default-identifier" \
                        "xserver-xorg/config/monitor/horiz-sync" \
                        "xserver-xorg/config/monitor/vert-refresh" \
                        "xserver-xorg/config/monitor/range_input_error" \
                        "xserver-xorg/config/display/modes" \
                        "xserver-xorg/config/device/video_ram" \
                        "xserver-xorg/config/display/default_depth" \
                        "xserver-xorg/config/inputdevice/mouse/port" \
                        "xserver-xorg/config/inputdevice/mouse/protocol" \
                        "xserver-xorg/config/inputdevice/mouse/emulate3buttons" \
                        "xserver-xorg/config/modules" \
                        "xserver-xorg/config/monitor/default-identifier" \
                        "xserver-xorg/config/monitor/identifier" \
                        "xserver-xorg/config/write_files_section" \
                        "xserver-xorg/multiple_possible_x-drivers"; do
          db_unregister "$QUESTION" || true
        done
    fi
    if dpkg --compare-versions "$2" lt-nl 1:7.4; then
      for QUESTION in \
        xserver-xorg/config/null_string_error \
        xserver-xorg/config/doublequote_in_string_error \
        xserver-xorg/config/nonnumeric_string_error \
        xserver-xorg/config/device/use_fbdev \
        xserver-xorg/config/device/driver \
        xserver-xorg/config/inputdevice/keyboard/rules \
        xserver-xorg/config/inputdevice/keyboard/model \
        xserver-xorg/config/inputdevice/keyboard/layout \
        xserver-xorg/config/inputdevice/keyboard/variant \
        xserver-xorg/config/inputdevice/keyboard/options \
        xserver-xorg/autodetect_keyboard; do
	db_unregister $QUESTION || true
      done
    fi
    if dpkg --compare-versions "$2" lt-nl 1:7.4+2; then
      db_unregister xserver-xorg/config/device/bus_id || true
      db_unregister xserver-xorg/config/device/bus_id_error || true
      rm -f "$XORGCONFIG_ROSTER" "$XORGCONFIG_CHECKSUM"
      rm -f "$SERVER_SYMLINK_CHECKSUM" "$SERVER_SYMLINK_ROSTER"
    fi
fi

if dpkg --compare-versions "$2" lt-nl "1:7.4~3"; then
  # We're upgrading from pre-7.4.  We need to replace i810 with intel, and
  # via with openchrome.
  if [ -e "$XORGCONFIG" ]; then
    LC_ALL=C sed -e'
	/^[[:space:]]*Section[[:space:]]\+"Device"[[:space:]]*$/I,/^[[:space:]]*EndSection[[:space:]]*$/I {
	/^[[:space:]]*Driver[[:space:]]\+"i810"/I s/i810/intel/I
	/^[[:space:]]*Driver[[:space:]]\+"via"/I s/via/openchrome/I
	}
	' $XORGCONFIG > ${XORGCONFIG}.madwizard-new
    if ! cmp -s $XORGCONFIG ${XORGCONFIG}.madwizard-new; then
      chown --reference=$XORGCONFIG ${XORGCONFIG}.madwizard-new
      chmod --reference=$XORGCONFIG ${XORGCONFIG}.madwizard-new
      mv ${XORGCONFIG}.madwizard-new $XORGCONFIG
    else
      rm ${XORGCONFIG}.madwizard-new
    fi
  fi
fi

get_hal_pid() {
  dbus-send --system --dest=org.freedesktop.DBus --print-reply \
    /org/freedesktop/DBus org.freedesktop.DBus.GetConnectionUnixProcessID \
    string:org.freedesktop.Hal 2>/dev/null | awk '/uint32/ {print $2}'
}

restart_hal() {
  # restart hald if it was running before
  pid=$(get_hal_pid)
  if [ -n "$pid" ]; then
    kill $pid 2>/dev/null || true
    lshal >/dev/null || true # will trigger through D-Bus activation
  fi
}

case "$1" in
  configure)
    if dpkg --compare-versions "$2" lt-nl "1:7.3+11"; then
      remove_conffile_commit "/etc/init.d/xserver-xorg"
    fi
    if dpkg --compare-versions "$2" lt-nl "1:7.3+13"; then
      update-rc.d xserver-xorg remove || true
    fi
    if dpkg --compare-versions "$2" lt "1:7.5~3"; then
      if [ `uname -s` = "GNU/kFreeBSD" ]; then
        restart_hal
      fi
    fi
    ;;
esac

db_stop

exit 0

# vim:set ai et sts=2 sw=2 tw=0: