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✏️ Editing: spamassassin.preinst

#!/bin/sh

set -e

# Adapted from http://wiki.debian.org/DpkgConffileHandling

# spamassassin no longer distributes logcheck files for spamd.
# Luckily, the logcheck-database package which distributes these files
# now doesn't reuse the same file names. This script now deletes old
# (unchanged) versions of the file, but leaves and warns about changed
# versions.

# Remove a no-longer used conffile
rm_conffile() {
    PKGNAME="$1"
    CONFFILE="$2"
    if [ -e "$CONFFILE" ]; then
        md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
        old_md5sum="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE'{s/ obsolete$//;s/.* //p}\"`"
        if [ "$md5sum" != "$old_md5sum" ]; then
            echo "Obsolete conffile $CONFFILE has been modified by you."
            echo "Leaving $CONFFILE in place; you may wish to remove it."
        else
            echo "Removing obsolete conffile $CONFFILE ..."
            rm -f "$CONFFILE"
        fi
    fi
}
case "$1" in
install|upgrade)
    if dpkg --compare-versions "$2" le "3.2.3-1"; then
        rm_conffile spamassassin "/etc/logcheck/ignore.d.paranoid/spamassassin"
        rm_conffile spamassassin "/etc/logcheck/violations.ignore.d/spamassassin"
    fi
    if dpkg --compare-versions "$2" lt-nl "3.4.2" &&
       ! command -v systemctl > /dev/null; then
	# spamd changed its process name in 3.4.2. If we're running a
	# previous version under sysvinit, we need to stop the old
	# version
	start-stop-daemon --stop --oknodo \
			  --pidfile /var/run/spamd.pid \
			  --name /usr/sbin/spamd
    fi
esac

# Automatically added by dh_installsystemd/13.6ubuntu1
if [ -z "${DPKG_ROOT:-}" ] && [ "$1" = upgrade ] && [ -d /run/systemd/system ] ; then
	deb-systemd-invoke stop 'spamassassin.service' >/dev/null || true
fi
# End automatically added section

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