#! /bin/sh # prerm script for tdm-trinity # # see: dh_installdeb(1) set -e # summary of how this script can be called: # * <prerm> `remove' # * <old-prerm> `upgrade' <new-version> # * <new-prerm> `failed-upgrade' <old-version> # * <conflictor's-prerm> `remove' `in-favour' <package> <new-version> # * <deconfigured's-prerm> `deconfigure' `in-favour' # <package-being-installed> <version> `removing' # <conflicting-package> <version> # for details, see http://www.debian.org/doc/debian-policy/ or # the debian-policy package # debconf may not be available if some massive purging is going on HAVE_DEBCONF= if [ -e /usr/share/debconf/confmodule ]; then . /usr/share/debconf/confmodule HAVE_DEBCONF=yes fi case "$1" in # we NEVER want to unconditionally stop tdm; see below upgrade|failed-upgrade) REMOVING= ;; remove|deconfigure) REMOVING=yes rm -f /etc/init.d/tdm-trinity ;; *) echo "prerm called with unknown argument \`$1'" >&2 exit 1 ;; esac STOP= # are we supposed to restart on upgrade? if REMOVING tdm, we don't care what # the user says, we have to stop the daemon if grep -qs ^restart-on-upgrade /etc/trinity/tdm/tdm.options || [ -n "$REMOVING" ]; then # is there an tdm process running? if start-stop-daemon --stop --quiet --signal 0 --name tdm-trinity; then # any children? PARENTS=$(pidof /usr/bin/tdm-trinity || true) CHILDREN= if [ -n "$PARENTS" ]; then for PROCESS in $PARENTS; do # make sure we got numbers back [ $PROCESS -eq $PROCESS ] 2> /dev/null || exit # FIXME - redo this part uses shell-lib.sh from xfree86 # die "pidof returned non-numeric value" # we could use grep -q here if ps would ignore SIGPIPE :-P if (ps axj | grep "^ *$PROCESS" > /dev/null 2>&1); then CHILDREN=yes fi done if [ -n "$CHILDREN" ]; then if [ -n "$HAVE_DEBCONF" ]; then # ask the question db_input high tdm/stop_running_server_with_children || true db_go # what did the user say? ANSWER= if db_get tdm/stop_running_server_with_children; then ANSWER="$RET" fi if [ "$ANSWER" = "true" ]; then STOP=yes fi # forget that we have seen the question; this is the sort of # non-configuration question that should be asked every time db_fset tdm/stop_running_server_with_children seen false fi else STOP=yes fi fi fi fi if [ -n "$STOP" ]; then if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then invoke-rc.d tdm-trinity stop || true else /etc/init.d/tdm-trinity stop || true fi else if [ "$1" = "upgrade" -o "$1" = "failed-upgrade" ]; then touch /var/run/tdm-trinity.upgrade fi fi DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager if [ "$1" = "remove" -o "$1" = "deconfigure" ]; then if [ -n "$HAVE_DEBCONF" ]; then # disown this question db_unregister shared/default-x-display-manager || true # does the question still exist? if db_get shared/default-x-display-manager; then if db_metaget shared/default-x-display-manager owners; then # FIXME - redo this part uses shell-lib.sh from xfree86 #observe "X display managers now available are \"$OWNERS\"" db_subst shared/default-x-display-manager choices "$RET" fi DEFAULT_DISPLAY_MANAGER= if db_get shared/default-x-display-manager; then DEFAULT_DISPLAY_MANAGER="$RET" fi # are we removing the currently selected display manager? if [ -n "$DEFAULT_DISPLAY_MANAGER" ]; then if [ "tdm-trinity" = "$DEFAULT_DISPLAY_MANAGER" ]; then if [ -e "$DEFAULT_DISPLAY_MANAGER_FILE" ]; then if db_get "$DEFAULT_DISPLAY_MANAGER/daemon_name"; then # does the display manager file reference the current default? if # so, remove it because it will now be wrong if [ -n "$RET" ]; then if [ "$(cat "$DEFAULT_DISPLAY_MANAGER_FILE")" = "$RET" ]; then rm "$DEFAULT_DISPLAY_MANAGER_FILE" fi fi fi fi # ask the user to choose a new default db_fset shared/default-x-display-manager seen false db_input critical shared/default-x-display-manager || true db_go # if the default display manager file doesn't exist, write it with # the path to the new 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 # FIXME - redo this part uses shell-lib.sh from xfree86 #warn "new default display manager has been selected; please be" \ # "sure to run \"dpkg-reconfigure $RET\" to ensure that it" \ # "is configured" DAEMON_NAME= if db_get "$DEFAULT_DISPLAY_MANAGER"/daemon_name; then DAEMON_NAME="$RET" fi if [ ! -n "$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 [ ! -n "$DAEMON_NAME" ]; then echo . # FIXME - redo this part uses shell-lib.sh from xfree86 #warn "unable to determine path to default X display manager" \ # "$DEFAULT_DISPLAY_MANAGER; not updating" \ # "$DEFAULT_DISPLAY_MANAGER_FILE" fi fi if [ -n "$DAEMON_NAME" ]; then echo "$DAEMON_NAME" > "$DEFAULT_DISPLAY_MANAGER_FILE" fi fi fi fi fi fi fi fi exit 0