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#!/bin/sh
#
# $Id: preinst,v 1.15 2002/04/11 02:01:21 laz Exp $
#
set -e
[ -n "$DEBUG" ] && set -vx
action=$1
version=$2
# gimme da debconf
set +vx
. /usr/share/debconf/confmodule
[ -n "$DEBUG" ] && set -vx
if [ "$action" = "upgrade" ] ; then
# use procps' pgrep if possible
if which pgrep > /dev/null ; then
PGREP="pgrep -x "
else
# if not, manufacture our own pgrep using awk and ps... sucko
PGREP=screenmaint_pgrep
screenmaint_pgrep() {
ps auxww | awk "{
if (match(\$11,\"screen\")!=0 || match(\$11,\"SCREEN\")!=0) {
print \$2;
}
}"
}
fi
if dpkg --compare-versions "$version" lt "3.9.5-5" ; then
if [ ! -z "$($PGREP screen)" ] ; then
# if they're running an old version and there are screen processes
# running, then prompt
# reset these no matter what
db_reset screen/old_upgrade_prompt || true
db_fset screen/old_upgrade_prompt seen false || true
# then prompt
db_input high screen/old_upgrade_prompt || true
db_go || true
# and find out what they said
db_get screen/old_upgrade_prompt || true
if [ "$RET" = "false" ]; then
exit 1
fi
fi
fi
fi
#DEBHELPER#
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