debian/lightdm.prerm

   1 #!/bin/bash
   2 # Debian lightdm package pre-removal script
   3 # © 2010 Yves-Alexis Perez, using lightdm script which is
   4 # Copyright 2001 Branden Robinson.
   5 # Licensed under the GNU General Public License, version 2.  See the file
   6 # /usr/share/common-licenses/GPL or <http://www.gnu.org/copyleft/gpl.txt>.
   7 # Acknowlegements to Stephen Early, Mark Eichin, and Manoj Srivastava.
   8
   9 set -e
  10
  11 THIS_PACKAGE=lightdm
  12 DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager
  13
  14 if [ "$1" = "remove" -o "$1" = "deconfigure" ]; then
  15   if [ -e /usr/share/debconf/confmodule ]; then
  16     . /usr/share/debconf/confmodule
  17     # disown this question
  18     db_unregister shared/default-x-display-manager || true
  19     # does the question still exist?
  20     if db_get shared/default-x-display-manager; then
  21       db_metaget shared/default-x-display-manager owners
  22       db_subst shared/default-x-display-manager choices "$RET"
  23       db_get shared/default-x-display-manager
  24       # are we removing the currently selected display manager?
  25       if [ "$THIS_PACKAGE" = "$RET" ]; then
  26         if [ -e "$DEFAULT_DISPLAY_MANAGER_FILE" ]; then
  27           db_get "$RET"/daemon_name
  28           if [ "$(cat $DEFAULT_DISPLAY_MANAGER_FILE)" = "$RET" ]; then
  29             rm "$DEFAULT_DISPLAY_MANAGER_FILE"
  30           fi
  31         fi
  32         # ask the user to choose a new default
  33         db_fset shared/default-x-display-manager seen false
  34         db_input critical shared/default-x-display-manager || true
  35         db_go
  36         # if the display manager file doesn't exist, write it with the path
  37         # to the new default display manager
  38         if [ ! -e $DEFAULT_DISPLAY_MANAGER_FILE ]; then
  39           db_get shared/default-x-display-manager
  40           echo "Please be sure to run \"dpkg-reconfigure $RET\"."
  41           db_get "$RET"/daemon_name
  42           echo "$RET" > "$DEFAULT_DISPLAY_MANAGER_FILE"
  43         fi
  44       fi
  45     fi
  46   fi
  47 fi
  48
  49 if [ "$1" = "remove" ]; then
  50   if [ -x /etc/init.d/lightdm ]; then
  51     nostop=
  52     for hostname in "" "localhost" "$(hostname)" "$(hostname -f)"; do
  53       if echo $DISPLAY | grep -q "^$hostname:0.*"; then
  54         nostop=yes
  55       fi
  56     done
  57     if [ -z $nostop ]; then
  58       invoke-rc.d lightdm stop
  59     fi
  60   fi
  61 fi
  62
  63 #DEBHELPER#
  64
  65 exit 0