#! /bin/sh
# postrm script for yaws
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <postrm> `remove'
#        * <postrm> `purge'
#        * <old-postrm> `upgrade' <new-version>
#        * <new-postrm> `failed-upgrade' <old-version>
#        * <new-postrm> `abort-install'
#        * <new-postrm> `abort-install' <old-version>
#        * <new-postrm> `abort-upgrade' <old-version>
#        * <disappearer's-postrm> `disappear' <r>overwrit>r> <new-version>
# for details, see /usr/doc/packaging-manual/

case "$1" in
    remove|failed-upgrade|disappear)
    ;;

    purge)
	# Remove certificate and key, which were generated in postinst script
	rm -f /etc/yaws/yaws-cert.pem 2>/dev/null
	rm -f /etc/yaws/yaws-key.pem 2>/dev/null

	# Remove stale symlinks, which were created in postinst script
	for f in localhost.conf localhost-ssl.conf ; do
	    if [ -h /etc/yaws/conf.d/$f ] && ! readlink -e /etc/yaws/conf.d/$f ; then
		rm /etc/yaws/conf.d/$f
	    fi
	done

	# Remove /etc/yaws/conf.d and /etc/yaws/ if they're empty
	# (we won't remove user-created files)
	if [ -d /etc/yaws/conf.d ] ; then
	    (cd /etc && rmdir --parents --ignore-fail-on-non-empty yaws/conf.d)
	elif [ -d /etc/yaws ] ; then
	    (cd /etc && rmdir --ignore-fail-on-non-empty yaws)
	fi

	rm -f /etc/default/yaws 2>/dev/null
	rm -rf /var/log/yaws 2>/dev/null
	rm -rf /var/run/yaws 2>/dev/null
	rm -rf /var/cache/yaws 2>/dev/null

	userdel --force --remove yaws 2>/dev/null || true
    ;;

    upgrade)
	# Move /usr/local/lib/yaws-appmods back into /usr/lib/yaws/custom if
	# it's a downgrade
	if dpkg --compare-versions "$2" lt-nl "1.99" ; then
	    dir=/usr/local/lib/yaws-appmods
	    if [ -d $dir ] ; then
		if [ -d $dir/ebin -a -d $dir/include -a $(find $dir | wc -l) = 3 ] ; then
		    true
		else
		    for f in $(ls -A $dir) ; do
			mv -f $dir/$f /usr/lib/yaws/custom/
		    done
		    rmdir $f
		fi
	    fi
	fi
    ;;

    abort-install|abort-upgrade)
	# Abort moving /usr/lib/yaws/custom/* to /usr/local/lib/yaws-appmods/
	if [ -d /usr/lib/yaws-custom.dpkg-backup ] ; then
	    mv /usr/lib/yaws-custom.dpkg-backup /usr/lib/yaws/custom
	fi
    ;;

    *)
        echo "postrm called with unknown argument \`$1'" >&2
        exit 0
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0

