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#!/bin/sh
# Debian wdm package post-installation script
# Copyright 2001 Branden Robinson.
# Copyright 2005 Vladimir Shakhov.
# 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>.
set -e
# source debconf library
. /usr/share/debconf/confmodule
THIS_PACKAGE=wdm
THIS_DISPLAY_MANAGER=/usr/bin/wdm
DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager
message () {
# pretty-print messages of arbitrary length
echo "$*" | fold -s -w ${COLUMNS:-80} >&2;
}
message_nonl () {
# pretty-print messages of arbitrary length (no trailing newline)
echo -n "$*" | fold -s -w ${COLUMNS:-80} >&2;
}
errormsg () {
# exit script with error
message "$*"
exit 1;
}
# debconf is not a registry, so we only fiddle with the default file if it
# does not exist
DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager
if [ ! -e "$DEFAULT_DISPLAY_MANAGER_FILE" ]; then
DEFAULT_DISPLAY_MANAGER=
if db_get shared/default-x-display-manager; then
DEFAULT_DISPLAY_MANAGER="$RET"
fi
if [ -n "$DEFAULT_DISPLAY_MANAGER" ]; then
DAEMON_NAME=
if db_get "$DEFAULT_DISPLAY_MANAGER"/daemon_name; then
DAEMON_NAME="$RET"
fi
if [ -z "$DAEMON_NAME" ]; then
# if we were unable to determine the name of the selected daemon (for
# instance, if the selected default display manager doesn't provide a
# daemon_name question), guess
DAEMON_NAME=$(which "$DEFAULT_DISPLAY_MANAGER" 2>/dev/null)
if [ -z "$DAEMON_NAME" ]; then
echo "WARNING: unable to determine path to default X display manager" \
"$DEFAULT_DISPLAY_MANAGER; not updating" \
"$DEFAULT_DISPLAY_MANAGER_FILE"
fi
fi
if [ -n "$DAEMON_NAME" ]; then
echo "committing change of default X display manager"
echo "$DAEMON_NAME" > "$DEFAULT_DISPLAY_MANAGER_FILE"
fi
fi
else
DEFAULT_DISPLAY_MANAGER=$(cat "$DEFAULT_DISPLAY_MANAGER_FILE")
fi
# remove the displaced old default display manager file if it exists
if [ -e "$DEFAULT_DISPLAY_MANAGER_FILE.dpkg-tmp" ]; then
rm "$DEFAULT_DISPLAY_MANAGER_FILE.dpkg-tmp"
fi
DEFAULT_SERVICE=/etc/systemd/system/display-manager.service
# set default-display-manager systemd service link according to our config
if [ "$1" = configure ] && [ -d /etc/systemd/system/ ]; then
if [ -e "$DEFAULT_DISPLAY_MANAGER_FILE" ]; then
SERVICE=/lib/systemd/system/$(basename $(cat "$DEFAULT_DISPLAY_MANAGER_FILE")).service
if [ -h "$DEFAULT_SERVICE" ] && [ $(readlink "$DEFAULT_SERVICE") = /dev/null ]; then
echo "Display manager service is masked" >&2
elif [ -e "$SERVICE" ]; then
ln -sf "$SERVICE" "$DEFAULT_SERVICE"
else
echo "WARNING: $SERVICE is the selected default display manager but does not exist" >&2
rm -f "$DEFAULT_SERVICE"
fi
else
rm -f "$DEFAULT_SERVICE"
fi
fi
NOSTART=
WDM_RUNNING=
# don't start wdm if we are upgrading without stopping it
if [ -e /var/run/wdm.upgrade ]; then
NOSTART=yes
fi
# or if we're currently in X on the display it attempts to manage by default
for HOST_NAME in "" "localhost" "$(hostname)" "$(hostname -f)"; do
if echo $DISPLAY | grep -q "^${HOST_NAME}:0.*"; then
NOSTART=yes
fi
done
# or if it's already running
if start-stop-daemon --stop --quiet --signal 0 --pidfile /var/run/wdm.pid --exec /usr/bin/wdm; then
NOSTART=yes
WDM_RUNNING=yes
fi
# or if the options file says not to
if ! grep -qs ^restart-on-upgrade /etc/X11/wdm/wdm.options; then
NOSTART=yes
fi
if [ -n "$WDM_RUNNING" ]; then
if [ -d /var/state/wdm ]; then
message "Note: obsolete directory /var/state/wdm cannot be removed" \
"because wdm is still running. Reinstall the wdm package" \
"(or remove the directory manually) when wdm is not running."
fi
else
if [ -d /var/state/wdm ]; then
rm -r /var/state/wdm
fi
fi
update_wdm_wmlist
update-rc.d wdm defaults 99 01 > /dev/null 2>&1
# redirect stdout to /dev/tty so debconf doesn't choke on it
[ -n "$NOSTART" ] || if which invoke-rc.d >/dev/null 2>&1; then
invoke-rc.d package start
else
/etc/init.d/package start
fi > /dev/tty || true
#DEBHELPER#
exit 0
# vim:set ai et sts=2 sw=2 tw=0:
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