prerm is in kdm 4:4.8.5-0ubuntu0.4.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 | #! /bin/sh
# prerm script for kdm
#
# 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 kdm; see below
upgrade|failed-upgrade)
REMOVING=
;;
remove|deconfigure)
REMOVING=yes
;;
*)
echo "prerm called with unknown argument \`$1'" >&2
exit 1
;;
esac
STOP=
# are we supposed to restart on upgrade? if REMOVING kdm, we don't care what
# the user says, we have to stop the daemon
if grep -qs ^restart-on-upgrade /etc/kde4/kdm/kdm.options ||
[ -n "$REMOVING" ]; then
# is there an kdm process running?
if start-stop-daemon --stop --quiet --signal 0 --name kdm; then
# any children?
PARENTS=$(pidof /usr/bin/kdm || true)
CHILDREN=
if [ -n "$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 kdm/stop_running_server_with_children || true
db_go
# what did the user say?
ANSWER=
if db_get kdm/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 kdm/stop_running_server_with_children seen false
fi
else
STOP=yes
fi
fi
fi
fi
if [ -n "$STOP" ]; then
stop kdm || true
else
if [ "$1" = "upgrade" -o "$1" = "failed-upgrade" ]; then
touch /var/run/kdm.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 [ "kdm" = "$DEFAULT_DISPLAY_MANAGER" ]; then
if [ -e "$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
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