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#!/bin/sh
set -e
# Debian Postfix preinst
# LaMont Jones <lamont@debian.org>
# Modified to use debconf by Colin Walters <levanti@verbum.org>
# do we have debconf?
if [ -f /usr/share/debconf/confmodule ]; then
. /usr/share/debconf/confmodule
DEBCONF=true
else
DEBCONF=
fi
(umask 022; mkdir -p /var/spool/postfix)
case "$1" in
install)
rm -f /var/spool/postfix/restart /var/spool/postfix/reload
if [ -L /etc/postfix/postfix-script ]; then
rm -f /etc/postfix/postfix-script
fi
;;
upgrade)
if [ -d /var/spool/postfix ] && [ -f /etc/postfix/main.cf ]; then
touch /var/spool/postfix/restart
fi
export LANG=C # for the comparison of mail version...
if [ -L /etc/postfix/postfix-script ]; then
rm -f /etc/postfix/postfix-script
fi
# If user has not modified master/main.proto, move aside so new version
# is installed (#991513)
cmp -s /usr/share/postfix/main.cf.dist /etc/postfix/main.cf.proto && \
mv /etc/postfix/main.cf.proto /etc/postfix/main.cf.proto.old \
|| echo "/etc/postfix/main.cf.proto modified, not updating."
cmp -s /usr/share/postfix/master.cf.dist /etc/postfix/master.cf.proto && \
mv /etc/postfix/master.cf.proto /etc/postfix/master.cf.proto.old \
|| echo "/etc/postfix/master.cf.proto modified, not updating."
;;
abort-upgrade)
if [ -f /etc/postfix/main.cf.proto.old ]; then
mv /etc/postfix/main.cf.proto.old /etc/postfix/main.cf.proto
echo "Restoring old /etc/postfix/main.cf.proto on failed upgrade."
fi
if [ -f /etc/postfix/master.cf.proto.old ]; then
mv /etc/postfix/master.cf.proto.old /etc/postfix/master.cf.proto
echo "Restoring old /etc/postfix/master.cf.proto on failed upgrade."
fi
;;
*)
echo "preinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
if [ install = "$1" ] || [ upgrade = "$1" ]; then
# cleanup after past mistakes.
rm -f /usr/sbin/postconf.postfix
dpkg-divert --package postfix-tls --remove \
--divert /usr/sbin/postconf.postfix \
/usr/sbin/postconf >/dev/null 2>/dev/null
fi
#DEBHELPER#
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