#!/bin/sh
set -e

TESTDIR=$(readlink -f $(dirname $0))
. $TESTDIR/framework
setupenvironment

dpkg_field_ordered_list() {
	local FIELDS="$(perl -e "
use Dpkg::Control;
use Dpkg::Control::Fields;
foreach \$f (field_ordered_list(${1})) {
	print \"\$f\\n\";
}" | sort -u)"
	if [ -z "$FIELDS" ]; then
		msgfail 'Could not get fields via libdpkg-perl'
	fi
	echo "$FIELDS"
}

comparelsts() {
	local DIFFOUTPUT="$(diff -u apt.lst dpkg.lst || true)"
	if echo "$DIFFOUTPUT" | grep -q '^+[^+]'; then
		echo
		echo "$DIFFOUTPUT" | grep '^[+-][^+-]'
		msgfail
	else
		msgpass
	fi
}

msgtest 'Check that apt knows all fields dpkg orders in' 'Packages'
dpkg_field_ordered_list 'CTRL_INDEX_PKG' > dpkg.lst
sed -ne 's#^   "\(.*\)",.*$#\1#p' ${SOURCEDIRECTORY}/apt-pkg/tagfile-order.c | sed -n '/^Package$/,/^Package$/ p' | head -n -1 | sort -u > apt.lst
comparelsts

msgtest 'Check that apt knows all fields dpkg orders in' 'status'
dpkg_field_ordered_list 'CTRL_FILE_STATUS' > dpkg.lst
comparelsts

msgtest 'Check that apt knows all fields dpkg orders in' 'DEBIAN/control'
dpkg_field_ordered_list 'CTRL_PKG_DEB' > dpkg.lst
comparelsts

msgtest 'Check that apt knows all fields dpkg orders in' 'Sources'
dpkg_field_ordered_list 'CTRL_INDEX_SRC' > dpkg.lst
echo 'Package' > apt.tmp
sed -ne 's#^   "\(.*\)",.*$#\1#p' ${SOURCEDIRECTORY}/apt-pkg/tagfile-order.c | sed '/^Package$/,/^Package$/ d' >> apt.tmp
sort -u apt.tmp > apt.lst
comparelsts

msgtest 'Check that apt knows all fields dpkg orders in' 'dsc'
dpkg_field_ordered_list 'CTRL_PKG_SRC' > dpkg.lst
comparelsts

# HACK, but there is no good way to acquire sources in tests and/or to remember to run this regular manually
if [ "$USER" = 'david' ]; then
	msgtest 'Check if we have somewhere the sources of' 'dpkg'
	DPKGSOURCE="$(locate dpkg/lib/dpkg/parse.c  | head -n 1 || true)"
	if [ -z "$DPKGSOURCE" ]; then
		msgskip 'Not found'
	else
		msgpass
		msgtest 'Check that apt knows about all fields' 'dpkg parses'
		sed -n 's#^.*FIELD("\(.*\)").*$#\1#p' "${DPKGSOURCE}" | sort -u > dpkg.lst
		sed -ne 's#^   "\(.*\)",.*$#\1#p' ${SOURCEDIRECTORY}/apt-pkg/tagfile-order.c | sed -n '/^Package$/,/^Package$/ p' | head -n -1 | sort -u > apt.lst
		comparelsts
	fi

	msgtest 'Check if we have somewhere the sources of' 'dak'
	DAKSOURCE="$(locate dak/setup/core-init.d/080_metadatakeys | head -n 1 || true)"
	if [ -z "$DAKSOURCE" ]; then
		msgskip 'Not found'
	else
		msgpass
		msgtest 'Check that apt knows about all fields' 'dak knows'
		# dak mixes both, so we can only check with the mixed one as well
		sed -ne "s#^.* VALUES ('\(.*\)', \(.*\)).*\$#\1 \2#p" "${DAKSOURCE}" | cut -d ' ' -f 1 | sort -u > dpkg.lst
		sed -ne 's#^   "\(.*\)",.*$#\1#p' ${SOURCEDIRECTORY}/apt-pkg/tagfile-order.c | sort -u > apt.lst
		comparelsts
	fi
fi
