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#!/bin/sh -- # no runable script, just for vi

EXIT_CODE=0

while [ -n "$1" -a -z "$CHECK_ARGS" ]; do
	if [ "$1" = "-q" ]; then
		export MSGLEVEL=2
	elif [ "$1" = "-qq" ]; then
		export MSGLEVEL=1
	elif [ "$1" = "-v" ]; then
		export MSGLEVEL=4
	elif [ "$1" = '--color=no' ]; then
		export MSGCOLOR='NO'
	elif [ "$1" = '--color=yes' ]; then
		export MSGCOLOR='YES'
	elif [ "$1" = '--color' ]; then
		export MSGCOLOR="$(echo "$2" | tr 'a-z' 'A-Z')"
		shift
	elif [ "$1" = '--level' ]; then
		export MSGLEVEL=$2
		shift
	else
		echo >&2 "WARNING: Unknown parameter »$1« will be ignored"
	fi
	shift
done
export MSGLEVEL="${MSGLEVEL:-3}"

# we all like colorful messages
if [ "${MSGCOLOR:-YES}" = 'YES' ]; then
	if [ ! -t 1 ]; then # but check that we output to a terminal
		export MSGCOLOR='NO'
	fi
fi

if [ "$MSGCOLOR" != 'NO' ]; then
	CERROR="\033[1;31m" # red
	CWARNING="\033[1;33m" # yellow
	CMSG="\033[1;32m" # green
	CINFO="\033[1;96m" # light blue
	CDEBUG="\033[1;94m" # blue
	CNORMAL="\033[0;39m" # default system console color
	CDONE="\033[1;32m" # green
	CPASS="\033[1;32m" # green
	CFAIL="\033[1;31m" # red
	CCMD="\033[1;35m" # pink
fi

msgprintf() {
	local START="$1"
	local MIDDLE="$2"
	local END="$3"
	shift 3
	if [ -n "$1" ]; then
		printf "$START " "$1"
		shift
		while [ -n "$1" ]; do
			printf "$MIDDLE " "$(echo "$1" | sed -e 's#^apt\([cfghks]\)#apt-\1#')"
			shift
		done
	fi
	printf "${END}"
}
msgdie() { msgprintf "${CERROR}E: %s" '%s' "${CNORMAL}\n" "$@" >&2; exit 1; }
msgwarn() { msgprintf "${CWARNING}W: %s" '%s' "${CNORMAL}\n" "$@" >&2; }
msgmsg() { msgprintf "${CMSG}%s" '%s' "${CNORMAL}\n" "$@"; }
msginfo() { msgprintf "${CINFO}I: %s" '%s' "${CNORMAL}\n" "$@"; }
msgdebug() { msgprintf "${CDEBUG}D: %s" '%s' "${CNORMAL}\n" "$@"; }
msgdone() { msgprintf "${CDONE}DONE" '%s' "${CNORMAL}\n" "$@"; }
msgnwarn() { msgprintf "${CWARNING}W: %s" '%s' "${CNORMAL}" "$@" >&2; }
msgnmsg() { msgprintf "${CMSG}%s" '%s' "${CNORMAL}" "$@"; }
msgninfo() { msgprintf "${CINFO}I: %s" '%s' "${CNORMAL}" "$@"; }
msgndebug() { msgprintf "${CDEBUG}D: %s" '%s' "${CNORMAL}" "$@"; }
msgtest() { msgprintf "${CINFO}%s" "${CCMD}%s${CINFO}" "…${CNORMAL} " "$@"; }
msgpass() { printf "${CPASS}PASS${CNORMAL}\n"; }
msgreportheader() {
	if [ -n "$MSGTEST_MSG" ]; then
		test "$1" != 'msgfailoutput' || echo
		if [ -n "$MSGTEST_MSGMSG" ]; then
			echo "$MSGTEST_MSGMSG"
		fi
		if [ -n "$MSGTEST_GRP" ] && [ "$MSGTEST_GRP" != 'NEXT' ] && [ "$MSGTEST_GRP" != "$MSGTEST_MSG" ]; then
			echo "${CFAIL}Part of the test group: $MSGTEST_GRP"
		fi
		echo -n "$MSGTEST_MSG"
		unset MSGTEST_MSG
	fi
}
msgskip() {
	msgreportheader 'msgskip'
	if [ $# -gt 0 ]; then printf "${CWARNING}SKIP: $*${CNORMAL}\n" >&2;
	else printf "${CWARNING}SKIP${CNORMAL}\n" >&2; fi
}
msgfail() {
	msgreportheader 'msgfail'
	if [ $# -gt 0 ] && [ -n "$1" ]; then printf "${CFAIL}FAIL: $*${CNORMAL}\n" >&2;
	else printf "${CFAIL}FAIL${CNORMAL}\n" >&2; fi
	if [ -n "$APT_DEBUG_TESTS" ]; then
		runapt $SHELL
	fi
	EXIT_CODE=$((EXIT_CODE+1));
}
MSGGROUP_LEVEL=0
msggroup() {
	if [ -n "$1" ]; then
		if [ $MSGGROUP_LEVEL = 0 ]; then
			MSGTEST_GRP='NEXT'
		fi
		MSGGROUP_LEVEL=$((MSGGROUP_LEVEL+1));
	else
		MSGGROUP_LEVEL=$((MSGGROUP_LEVEL-1));
		if [ $MSGGROUP_LEVEL = 0 ]; then
			unset MSGTEST_GRP
		fi
	fi
}

# enable / disable Debugging
if [ $MSGLEVEL -le 0 ]; then
	msgdie() { true; }
fi
if [ $MSGLEVEL -le 1 ]; then
	msgwarn() { true; }
	msgnwarn() { true; }
fi
if [ $MSGLEVEL -le 2 ]; then
	msgmsg() {
		MSGTEST_MSGMSG="$(msgprintf "${CMSG}%s" '%s' "${CNORMAL}" "$@")"
	}
	msgnmsg() { true; }
	msgtest() {
		MSGTEST_MSG="$(msgprintf "${CINFO}%s" "${CCMD}%s${CINFO}" "…${CNORMAL} " "$@")"
		if [ "$MSGTEST_GRP" = 'NEXT' ]; then
			MSGTEST_GRP="$MSGTEST_MSG"
		fi
	}
	msgpass() { printf " ${CPASS}P${CNORMAL}"; }
fi
if [ $MSGLEVEL -le 3 ]; then
	msginfo() { true; }
	msgninfo() { true; }
fi
if [ $MSGLEVEL -le 4 ]; then
	msgdebug() { true; }
	msgndebug() { true; }
fi
if [ $MSGLEVEL -le 1 ]; then
	msgpass() { true; }
fi
msgdone() {
	if [ "$1" = "debug" -a $MSGLEVEL -le 4 ] ||
	   [ "$1" = "info" -a $MSGLEVEL -le 3 ] ||
	   [ "$1" = "msg" -a $MSGLEVEL -le 2 ] ||
	   [ "$1" = "warn" -a $MSGLEVEL -le 1 ] ||
	   [ "$1" = "die" -a $MSGLEVEL -le 0 ]; then
		true;
	else
		printf "${CDONE}DONE${CNORMAL}\n";
	fi
}
getaptconfig() {
	if [ -f ./aptconfig.conf ]; then
		echo "$(readlink -f ./aptconfig.conf)"
	elif [ -f ../aptconfig.conf ]; then
		echo "$(readlink -f ../aptconfig.conf)"
	elif [ -f ../../aptconfig.conf ]; then
		echo "$(readlink -f ../../aptconfig.conf)"
	elif [ -f "${TMPWORKINGDIRECTORY}/aptconfig.conf" ]; then
		echo "$(readlink -f "${TMPWORKINGDIRECTORY}/aptconfig.conf")"
	fi
}
runapt() {
	msgdebug "Executing: ${CCMD}$*${CDEBUG} "
	local CMD="$1"
	shift
	case "$CMD" in
	sh|aptitude|*/*|command) ;;
	*) CMD="${BUILDDIRECTORY}/$CMD";;
	esac
	if [ "$CMD" = 'aptitude' ]; then
		MALLOC_PERTURB_=21 MALLOC_CHECK_=2 APT_CONFIG="$(getaptconfig)" LD_LIBRARY_PATH="${LIBRARYPATH}:${LD_LIBRARY_PATH}" command "$CMD" "$@"
	else
		MALLOC_PERTURB_=21 MALLOC_CHECK_=2 APT_CONFIG="$(getaptconfig)" LD_LIBRARY_PATH="${LIBRARYPATH}:${LD_LIBRARY_PATH}" "$CMD" "$@"
	fi
}
runpython3() { runapt command python3 "$@"; }
aptconfig() { runapt apt-config "$@"; }
aptcache() { runapt apt-cache "$@"; }
aptcdrom() { runapt apt-cdrom "$@"; }
aptget() { runapt apt-get "$@"; }
aptftparchive() { runapt "${APTFTPARCHIVEBINDIR}/apt-ftparchive" "$@"; }
aptkey() { runapt apt-key "$@"; }
aptmark() { runapt apt-mark "$@"; }
aptsortpkgs() { runapt apt-sortpkgs "$@"; }
apt() { runapt apt "$@"; }
apthelper() { runapt "${APTHELPERBINDIR}/apt-helper" "$@"; }
aptwebserver() { runapt "${APTTESTHELPERSBINDIR}/aptwebserver" "$@"; }
aptitude() { runapt aptitude "$@"; }
aptextracttemplates() { runapt apt-extracttemplates "$@"; }
aptinternalsolver() { runapt "${APTINTERNALSOLVER}" "$@"; }
aptdumpsolver() { runapt "${APTDUMPSOLVER}" "$@"; }
aptinternalplanner() { runapt "${APTINTERNALPLANNER}" "$@"; }

dpkg() {
	"${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg" "$@"
}
dpkg_version() {
	command perl -MDpkg -E 'say $Dpkg::PROGVERSION'
}
dpkgcheckbuilddeps() {
	command dpkg-checkbuilddeps --admindir="${TMPWORKINGDIRECTORY}/rootdir/var/lib/dpkg" "$@"
}
gdb() {
	local CMD
	case "$1" in
	aptget) CMD="apt-get";;
	aptcache) CMD="apt-cache";;
	aptcdrom) CMD="apt-cdrom";;
	aptconfig) CMD="apt-config";;
	aptmark) CMD="apt-mark";;
	apthelper) CMD="apt-helper";;
	aptftparchive) CMD="apt-ftparchive";;
	dpkg) shift; runapt "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/gdb-dpkg" "$@"; return;;
	*) CMD="$1";;
	esac
	shift
	if [ "${CMD##*/}" = "$CMD" ]; then
		CMD="${BUILDDIRECTORY}/${CMD}"
	fi
	runapt command gdb --quiet -ex "directory '$SOURCEDIRECTORY'" -ex run "$CMD" --args "$CMD" "$@"
}

valgrind() {
	local CMD
	case "$1" in
	aptget) CMD="apt-get";;
	aptcache) CMD="apt-cache";;
	aptcdrom) CMD="apt-cdrom";;
	aptconfig) CMD="apt-config";;
	aptmark) CMD="apt-mark";;
	apthelper) CMD="apt-helper";;
	aptftparchive) CMD="apt-ftparchive";;
	dpkg) shift; runapt "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/gdb-dpkg" "$@"; return;;
	*) CMD="$1";;
	esac
	shift
	if [ "${CMD##*/}" = "$CMD" ]; then
		CMD="${BUILDDIRECTORY}/${CMD}"
	fi
	runapt command valgrind "$CMD" "$@"
}

lastmodification() {
	date -u -d "@$(stat -c '%Y' "${TMPWORKINGDIRECTORY}/$1")" -R
}
releasefiledate() {
	grep "^${2:-Date}:" "$1" | cut -d' ' -f 2-
}

exitwithstatus() {
        # error if we about to overflow, but ...
        #   "255 failures ought to be enough for everybody"
        if [ $EXIT_CODE -gt 255 ]; then
            msgdie "Total failure count $EXIT_CODE too big"
        fi
        exit $((EXIT_CODE <= 255 ? EXIT_CODE : 255));
}

shellsetedetector() {
	local exit_status=$?
	if [ "$exit_status" != '0' ]; then
		printf >&2 "${CERROR}E: Looks like the testcases ended prematurely with exitcode: ${exit_status}${CNORMAL}\n"
		if [ "$EXIT_CODE" = '0' ]; then
			EXIT_CODE="$exit_status"
		fi
	fi
}

addtrap() {
	if [ "$1" = 'prefix' ]; then
		CURRENTTRAP="$2 $CURRENTTRAP"
	else
		CURRENTTRAP="$CURRENTTRAP $1"
	fi
	trap "shellsetedetector; $CURRENTTRAP exitwithstatus;" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
}

escape_shell() {
    echo "$@" | sed -e "s#'#'\"'\"'#g"
}

find_project_binary_dir() {
	local TESTDIRECTORY="$(readlink -f "$(dirname $0)")"
	if [ -z "$PROJECT_BINARY_DIR" ]; then
		PROJECT_BINARY_DIR=
		for dir in ${TESTDIRECTORY}/../../ ${TESTDIRECTORY}/../../*; do
			test -e "$dir/CMakeCache.txt"  || continue
			if [ -z "$PROJECT_BINARY_DIR" ] ||
			   [ "$dir/CMakeCache.txt" -nt "$PROJECT_BINARY_DIR/CMakeCache.txt" ]; then
				PROJECT_BINARY_DIR="$dir"
			fi
		done
		if [ -z "$PROJECT_BINARY_DIR" ]; then
			echo "Cannot find build directory, you might want to set PROJECT_BINARY_DIR" >&2
			exit 1
		fi
		export PROJECT_BINARY_DIR
	fi
}
setupenvironment() {
	# Next check needs a gnu stat, let's figure that out early.
	stat=stat
	if command -v gnustat >/dev/null 2>&1; then
		stat=gnustat
	fi
	# privilege dropping and testing doesn't work if /tmp isn't world-writeable (as e.g. with libpam-tmpdir)
	if [ -n "$TMPDIR" ] && [ "$(id -u)" = '0' ] && [ "$($stat --format '%a' "$TMPDIR")" != '1777' ]; then
		unset TMPDIR
	fi
	TMPWORKINGDIRECTORY="$(mktemp -d)"
	addtrap "cd /; rm -rf '$(escape_shell "$TMPWORKINGDIRECTORY")';"
	if [ -n "$TMPDIR_ADD" ]; then
		TMPWORKINGDIRECTORY="${TMPWORKINGDIRECTORY}/${TMPDIR_ADD}"
		mkdir -p "$TMPWORKINGDIRECTORY"
		unset TMPDIR_ADD
		export TMPDIR="$TMPWORKINGDIRECTORY"
	fi
	msgninfo "Preparing environment for ${0##*/} in ${TMPWORKINGDIRECTORY}…"

	# Setup coreutils on BSD systems
	mkdir "${TMPWORKINGDIRECTORY}/bin"
	for prefix in gnu g; do
			for command in stat touch sed cp tr sha1sum sha256sum md5sum sha512sum grep date wc chmod head readlink tar expr base64; do
					if command -v $prefix$command 2>/dev/null >/dev/null; then
							[ -e "${TMPWORKINGDIRECTORY}/bin/$command" ] || ln -sf $(command -v $prefix$command)  "${TMPWORKINGDIRECTORY}/bin/$command"
					fi
			done
	done
	export PATH="${TMPWORKINGDIRECTORY}/bin/:$PATH"


	mkdir -m 700 "${TMPWORKINGDIRECTORY}/downloaded"
	if [ "$(id -u)" = '0' ]; then
		# relax permissions so that running as root with user switching works
		umask 022
		chmod 711 "$TMPWORKINGDIRECTORY"
		chown _apt:$(id -gn) "${TMPWORKINGDIRECTORY}/downloaded"
	fi

	TESTDIRECTORY="$(readlink -f "$(dirname $0)")"
	# Find the newest build directory (sets PROJECT_BINARY_DIR)
	find_project_binary_dir
        # allow overriding the default BUILDDIR location
	SOURCEDIRECTORY="${APT_INTEGRATION_TESTS_SOURCE_DIR:-"${TESTDIRECTORY}/../../"}"
	BUILDDIRECTORY="${APT_INTEGRATION_TESTS_BUILD_DIR:-"${PROJECT_BINARY_DIR}/cmdline"}"
	LIBRARYPATH="${APT_INTEGRATION_TESTS_LIBRARY_PATH:-"${BUILDDIRECTORY}/../apt-pkg"}"
        METHODSDIR="${APT_INTEGRATION_TESTS_METHODS_DIR:-"${BUILDDIRECTORY}/../methods"}"
        APTHELPERBINDIR="${APT_INTEGRATION_TESTS_LIBEXEC_DIR:-"${BUILDDIRECTORY}"}"
        APTTESTHELPERSBINDIR="${APT_INTEGRATION_TESTS_HELPERS_BIN_DIR:-"${BUILDDIRECTORY}/../test/interactive-helper"}"
        APTFTPARCHIVEBINDIR="${APT_INTEGRATION_TESTS_FTPARCHIVE_BIN_DIR:-"${BUILDDIRECTORY}/../ftparchive"}"
        APTINTERNALSOLVER="${APT_INTEGRATION_TESTS_INTERNAL_SOLVER:-"${BUILDDIRECTORY}/solvers/apt"}"
	APTDUMPSOLVER="${APT_INTEGRATION_TESTS_DUMP_SOLVER:-"${BUILDDIRECTORY}/solvers/dump"}"
	APTINTERNALPLANNER="${APT_INTEGRATION_TESTS_INTERNAL_PLANNER:-"${BUILDDIRECTORY}/planners/apt"}"
	test -x "${BUILDDIRECTORY}/apt-get" || msgdie "You need to build tree first"
        # -----

	cd "$TMPWORKINGDIRECTORY"
	echo "#x-apt-configure-index \"${SOURCEDIRECTORY}/doc/examples/configure-index\";" > aptconfig.conf
	mkdir rootdir aptarchive keys
	cd rootdir
	mkdir -p etc/apt/apt.conf.d etc/apt/sources.list.d etc/apt/trusted.gpg.d etc/apt/preferences.d
	mkdir -p usr/bin var/cache var/lib var/log var/crash tmp
	mkdir -p var/lib/dpkg/info var/lib/dpkg/updates var/lib/dpkg/triggers
	mkdir -p usr/lib/apt/solvers usr/lib/apt/planners
	touch var/lib/dpkg/available
	ln -s "${METHODSDIR}" usr/lib/apt/methods
	ln -s "${APTDUMPSOLVER}" usr/lib/apt/solvers/dump
	ln -s "${APTDUMPSOLVER}" usr/lib/apt/planners/dump
	ln -s "${APTINTERNALSOLVER}" usr/lib/apt/solvers/apt
	ln -s "${APTINTERNALPLANNER}" usr/lib/apt/planners/apt
	echo "Dir::Bin::Solvers \"${TMPWORKINGDIRECTORY}/rootdir/usr/lib/apt/solvers\";" >> ../aptconfig.conf
	echo "Dir::Bin::Planners \"${TMPWORKINGDIRECTORY}/rootdir/usr/lib/apt/planners\";" >> ../aptconfig.conf
        # use the autoremove from the BUILDDIRECTORY if its there, otherwise
        # system
        if [ -z "${APT_INTEGRATION_TESTS_SOURCE_DIR}" ]; then
	    ln -s "${SOURCEDIRECTORY}/debian/apt.conf.autoremove" etc/apt/apt.conf.d/01autoremove
        else
	    ln -s /etc/apt/apt.conf.d/01autoremove etc/apt/apt.conf.d/01autoremove
        fi
	cd ..
	local BASENAME="${0##*/}"
	local PACKAGESFILE="Packages-${BASENAME#*-}"
	if [ -f "${TESTDIRECTORY}/${PACKAGESFILE}" ]; then
		cp "${TESTDIRECTORY}/${PACKAGESFILE}" aptarchive/Packages
	fi
	local SOURCESSFILE="Sources-${BASENAME#*-}"
	if [ -f "${TESTDIRECTORY}/${SOURCESSFILE}" ]; then
		cp "${TESTDIRECTORY}/${SOURCESSFILE}" aptarchive/Sources
	fi
	find "$TESTDIRECTORY" \( -name '*.pub' -o -name '*.sec' \) -exec cp '{}' keys/ \;
	chmod 644 keys/*
	ln -s "${TMPWORKINGDIRECTORY}/keys/joesixpack.pub" rootdir/etc/apt/trusted.gpg.d/joesixpack.gpg

	echo "Dir \"${TMPWORKINGDIRECTORY}/rootdir\";" >> aptconfig.conf
	echo "Dir::Etc \"etc\";" >> aptconfig.conf
	echo "Dir::State \"var/lib/apt\";" >> aptconfig.conf
	echo "Dir::Cache \"var/cache/apt\";" >> aptconfig.conf
	echo "Dir::Etc \"etc/apt\";" >> aptconfig.conf
	echo "Dir::Log \"var/log/apt\";" >> aptconfig.conf
	echo "APT::Get::Show-User-Simulation-Note \"false\";" >> aptconfig.conf
	echo "Dir::Bin::Methods \"${TMPWORKINGDIRECTORY}/rootdir/usr/lib/apt/methods\";" >> aptconfig.conf
	# either store apt-key were we can access it, even if we run it as a different user
	#cp "${BUILDDIRECTORY}/apt-key" "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/"
	#chmod o+rx "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/apt-key"
	#echo "Dir::Bin::apt-key \"${TMPWORKINGDIRECTORY}/rootdir/usr/bin/apt-key\";" >> aptconfig.conf
	# destroys coverage reporting though, so we disable changing user for the calling gpgv
	echo "Dir::Bin::apt-key \"${BUILDDIRECTORY}/apt-key\";" >> aptconfig.conf
	if [ "$(id -u)" = '0' ]; then
		echo 'Binary::gpgv::APT::Sandbox::User "root";' >> aptconfig.conf
		# same for the solver executables
		echo 'APT::Solver::RunAsUser "root";' >> aptconfig.conf
		echo 'APT::Planner::RunAsUser "root";' >> aptconfig.conf
	fi

	cat > "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg" <<EOF
#!/bin/sh
set -e
if [ -r '${TMPWORKINGDIRECTORY}/noopchroot.so' ]; then
	if [ -n "\$LD_LIBRARY_PATH" ]; then
		export LD_LIBRARY_PATH='${TMPWORKINGDIRECTORY}:'"\${LD_LIBRARY_PATH}"
	else
		export LD_LIBRARY_PATH='${TMPWORKINGDIRECTORY}'
	fi
	if [ -n "\$LD_PRELOAD" ]; then
		export LD_PRELOAD="noopchroot.so \${LD_PRELOAD}"
	else
		export LD_PRELOAD="noopchroot.so"
	fi
fi
EOF
	cp "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg" "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/gdb-dpkg"
	cat >> "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg" <<EOF
exec fakeroot '${DPKG:-dpkg}' --root='${TMPWORKINGDIRECTORY}/rootdir' \\
	--admindir="${TMPWORKINGDIRECTORY}/rootdir/var/lib/dpkg" \\
	--log='${TMPWORKINGDIRECTORY}/rootdir/var/log/dpkg.log' \\
	--force-not-root --force-bad-path "\$@"
EOF
	cat >> "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/gdb-dpkg" <<EOF
exec fakeroot gdb --quiet -ex run '${DPKG:-dpkg}' --args '${DPKG:-dpkg}' --root='${TMPWORKINGDIRECTORY}/rootdir' \\
	--admindir="${TMPWORKINGDIRECTORY}/rootdir/var/lib/dpkg" \\
	--log='${TMPWORKINGDIRECTORY}/rootdir/var/log/dpkg.log' \\
	--force-not-root --force-bad-path "\$@"
EOF
	chmod +x "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg" "${TMPWORKINGDIRECTORY}/rootdir/usr/bin/gdb-dpkg"
	echo "Dir::Bin::dpkg \"${TMPWORKINGDIRECTORY}/rootdir/usr/bin/dpkg\";" > rootdir/etc/apt/apt.conf.d/99dpkg

	{
		if ! command dpkg --assert-multi-arch >/dev/null 2>&1; then
			echo "DPKG::options:: \"--force-architecture\";" # Added to test multiarch before dpkg is ready for it…
		fi
		echo 'quiet "0";'
		echo 'quiet::NoUpdate "true";'
		echo 'quiet::NoStatistic "true";'
		# too distracting for users, but helpful to detect changes
		echo 'Acquire::Progress::Ignore::ShowErrorText "true";'
		echo 'Acquire::Progress::Diffpercent "true";'
		# in testcases, it can appear as if localhost has a rotation setup,
		# hide this as we can't really deal with it properly
		echo 'Acquire::Failure::ShowIP "false";'
		# randomess and tests don't play well together
		echo 'Acquire::IndexTargets::Randomized "false";'
		# fakeroot can't fake everything, so disabled in production but good for tests
		echo 'APT::Sandbox::Verify "true";'
	} >> aptconfig.conf

	cp "${TESTDIRECTORY}/apt.pem" "${TMPWORKINGDIRECTORY}/rootdir/etc/webserver.pem"
	if [ "$(id -u)" = '0' ]; then
		chown _apt:$(id -gn) "${TMPWORKINGDIRECTORY}/rootdir/etc/webserver.pem"
	fi
	echo "Acquire::https::CaInfo \"${TMPWORKINGDIRECTORY}/rootdir/etc/webserver.pem\";" > rootdir/etc/apt/apt.conf.d/99https
	echo "Apt::Cmd::Disable-Script-Warning \"1\";" > rootdir/etc/apt/apt.conf.d/apt-binary
	export APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=no
	echo 'Acquire::Connect::AddrConfig "false";' > rootdir/etc/apt/apt.conf.d/connect-addrconfig
	# Allow release files to be 10 hours in the future, rather than 10 seconds
	echo 'Acquire::Max-FutureTime "'$((10 * 60 * 60))'";' > rootdir/etc/apt/apt.conf.d/future-time

	configcompression '.' 'gz' #'bz2' 'lzma' 'xz'
	confighashes 'SHA256' # these are tests, not security best-practices

	# create some files in /tmp and look at user/group to get what this means
	TEST_DEFAULT_USER="$(id -un)"
	touch "${TMPWORKINGDIRECTORY}/test-file"
	TEST_DEFAULT_GROUP=$(stat --format '%G'  "${TMPWORKINGDIRECTORY}/test-file")

	# cleanup the environment a bit
	# prefer our apt binaries over the system apt binaries
	export PATH="${BUILDDIRECTORY}:${PATH}:/usr/local/sbin:/usr/sbin:/sbin"
	export LC_ALL=C
	unset LANGUAGE COLUMNS NLSPATH
	unset APT_CONFIG DPKG_ADMINDIR DPKG_COLORS
	unset DEB_CHECK_COMMAND DEB_SIGN_KEYID DEB_BUILD_OPTIONS DEB_BUILD_PROFILES
	unset DH_VERBOSE DH_QUIET DH_COMPAT DH_NO_ACT DH_OPTIONS DH_EXTRA_ADDONS
	unset GREP_OPTIONS POSIXLY_CORRECT
	unset http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy

	# Make dpkg inherit testing path
	echo 'DPkg::Path "";' >> aptconfig.conf

	# Make gcov shut up
	export GCOV_ERROR_FILE=/dev/null

	# If gpgv supports --weak-digest, pass it to make sure we can disable SHA1
	if aptkey verify --weak-digest SHA1 --help 2>/dev/null >/dev/null; then
		echo 'Acquire::gpgv::Options { "--weak-digest"; "sha1"; };' > rootdir/etc/apt/apt.conf.d/no-sha1
	fi

	# most tests just need one signed Release file, not both
	export APT_DONT_SIGN='Release.gpg'

	if [ -r "${TESTDIRECTORY}/extra-environment" ]; then
		. "${TESTDIRECTORY}/extra-environment"
	fi

	msgdone "info"
}

getarchitecture() {
	if [ "$1" = "native" -o -z "$1" ]; then
		eval `aptconfig shell ARCH APT::Architecture`
		if [ -n "$ARCH" ]; then
			echo $ARCH
		else
			dpkg --print-architecture
		fi
	else
		echo $1
	fi
}

getarchitectures() {
	aptconfig dump --no-empty --format '%v%n' APT::Architecture APT::Architectures | sort -u | tr '\n' ' '
}

getarchitecturesfromcommalist() {
	echo "$1" | sed -e 's#,#\n#g' | sed -e "s/^native\$/$(getarchitecture 'native')/"
}

configarchitecture() {
	{
		echo "APT::Architecture \"$(getarchitecture $1)\";"
		while [ -n "$1" ]; do
			echo "APT::Architectures:: \"$(getarchitecture $1)\";"
			shift
		done
	} >rootdir/etc/apt/apt.conf.d/01multiarch.conf
	configdpkg
}

configdpkg() {
	if [ ! -e rootdir/var/lib/dpkg/status ]; then
		local BASENAME="${0##*/}"
		local STATUSFILE="status-${BASENAME#*-}"
		if [ -f "${TESTDIRECTORY}/${STATUSFILE}" ]; then
			cp "${TESTDIRECTORY}/${STATUSFILE}" rootdir/var/lib/dpkg/status
			# Add an empty line to the end if there is none
			if tail -1 rootdir/var/lib/dpkg/status | grep -q .; then
				echo >> rootdir/var/lib/dpkg/status
			fi
		else
			echo -n > rootdir/var/lib/dpkg/status
		fi
	fi
	rm -f rootdir/etc/apt/apt.conf.d/00foreigndpkg
	# make sure dpkg can detect itself as capable of it
	if [ "0" = "$(dpkg -l dpkg 2> /dev/null | grep '^i' | wc -l)" ]; then
		# dpkg doesn't really check the version as long as it is fully installed,
		# but just to be sure we choose one above the required version
		insertinstalledpackage 'dpkg' "all" '1.16.2+fake'
	fi
	if dpkg --assert-multi-arch >/dev/null 2>&1 ; then
		local ARCHS="$(getarchitectures)"
		local DPKGARCH="$(dpkg --print-architecture)"
		# this ensures that even if multi-arch isn't active in the view
		# of apt, given that dpkg can't be told which arch is native
		# the arch apt treats as native might be foreign for dpkg
		for ARCH in ${ARCHS}; do
			if [ "${ARCH}" != "${DPKGARCH}" ]; then
				if ! dpkg --add-architecture ${ARCH} >rootdir/tmp/dpkgaddarch.output 2>&1; then
					if grep -q 'pkg-config-dpkghook' rootdir/tmp/dpkgaddarch.output; then
						msgwarn 'Ignoring failure of dpkg --add-architecture as it is likely due to pkg-config-dpkghook (see #824774)'
					else
						# old-style used e.g. in Ubuntu-P – and as it seems travis
						echo "DPKG::options:: \"--foreign-architecture\";" >> rootdir/etc/apt/apt.conf.d/00foreigndpkg
						echo "DPKG::options:: \"${ARCH}\";"  >> rootdir/etc/apt/apt.conf.d/00foreigndpkg
					fi
				fi
			fi
		done
	fi
}

configdpkgnoopchroot() {
	# create a library to noop chroot() and rewrite maintainer script executions
	# via execvp() as used by dpkg as we don't want our rootdir to be a fullblown
	# chroot directory dpkg could chroot into to execute the maintainer scripts
	msgtest 'Building library to preload to make maintainerscript work in' 'dpkg'
	cat > noopchroot.c << EOF
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>

static char * chrootdir = NULL;

int chroot(const char *path) {
	printf("WARNING: CHROOTing to %s was ignored!\n", path);
	free(chrootdir);
	chrootdir = strdup(path);
	return 0;
}
int execvp(const char *file, char *const argv[]) {
	static int (*func_execvp) (const char *, char * const []) = NULL;
	if (func_execvp == NULL)
		func_execvp = (int (*) (const char *, char * const [])) dlsym(RTLD_NEXT, "execvp");
	if (chrootdir == NULL || strncmp(file, "/var/lib/dpkg/", strlen("/var/lib/dpkg/")) != 0)
		return func_execvp(file, argv);
	printf("REWRITE execvp call %s into %s\n", file, chrootdir);
	char *newfile;
	if (asprintf(&newfile, "%s%s", chrootdir, file) == -1) {
		perror("asprintf");
		return -1;
	}
	char const * const baseadmindir = "/var/lib/dpkg";
	char *admindir;
	if (asprintf(&admindir, "%s%s", chrootdir, baseadmindir) == -1) {
		perror("asprintf");
		return -1;
	}
	setenv("DPKG_ADMINDIR", admindir, 1);
	return func_execvp(newfile, argv);
}
EOF
	if cc -ldl 2>&1 | grep -q dl; then
		testempty --nomsg cc -Wall -Wextra -fPIC -shared -o noopchroot.so noopchroot.c
	else
		testempty --nomsg cc -Wall -Wextra -fPIC -shared -o noopchroot.so noopchroot.c -ldl
	fi
}
configcompression() {
	if [ "$1" = 'ALL' ]; then
		configcompression '.' $(aptconfig dump APT::Compressor --format '%t %v%n' | sed -n 's#^Extension \.\(.*\)$#\1#p')
		return
	fi
	local CMD='apthelper cat-file -C'
	while [ -n "$1" ]; do
		case "$1" in
		'.') printf ".\t.\tcat\n";;
		'gz') printf "gzip\tgz\t$CMD $1\n";;
		'bz2') printf "bzip2\tbz2\t$CMD $1\n";;
		'zst') printf "zstd\tzst\t$CMD $1\n";;
		*) printf "$1\t$1\t$CMD $1\n";;
		esac
		shift
	done > "${TMPWORKINGDIRECTORY}/rootdir/etc/testcase-compressor.conf"
}
confighashes() {
	{
		echo 'APT::FTPArchive {'
		{
			while [ -n "$1" ]; do
				printf "$1" | tr 'a-z' 'A-Z'
				printf "\t\"true\";\n"
				shift
			done
			for h in 'MD5' 'SHA1' 'SHA256' 'SHA512'; do
				printf "$h\t\"false\";\n"
			done
		} | awk '!x[$1]++'
		echo '};'
	} >> "${TMPWORKINGDIRECTORY}/rootdir/etc/apt/apt.conf.d/ftparchive-hashes.conf"
}
forcecompressor() {
	COMPRESSOR="$1"
	COMPRESS="$1"
	COMPRESSOR_CMD="apthelper cat-file -C $1"
	case $COMPRESSOR in
	gzip) COMPRESS='gz';;
	bzip2) COMPRESS='bz2';;
	zstd) COMPRESS='zst';;
	esac
	local CONFFILE="${TMPWORKINGDIRECTORY}/rootdir/etc/apt/apt.conf.d/00force-compressor"
	echo "Acquire::CompressionTypes::Order { \"${COMPRESS}\"; };
Dir::Bin::uncompressed \"/does/not/exist\";" > "$CONFFILE"
	for COMP in $(aptconfig dump 'APT::Compressor' --format '%f%n' | cut -d':' -f 5 | uniq); do
		if [ -z "$COMP" -o "$COMP" = '.' -o "$COMP" = "$COMPRESSOR" ]; then continue; fi
		echo "Dir::Bin::${COMP} \"/does/not/exist\";" >> "$CONFFILE"
		echo "APT::Compressor::${COMP}::Name \"${COMP}-disabled\";" >> "$CONFFILE"
	done
}

_setupsimplenativepackage() {
	local NAME="$1"
	local ARCH="$2"
	local VERSION="$3"
	local RELEASE="${4:-unstable}"
	local DEPENDENCIES="$5"
	local DESCRIPTION="${6:-an autogenerated dummy ${NAME}=${VERSION}/${RELEASE}
 If you find such a package installed on your system,
 something went horribly wrong! They are autogenerated
 und used only by testcases and serve no other purpose…}"

	local SECTION="${7:-others}"
	local PRIORITY="${8:-optional}"
	local FILE_TREE="$9"
	local COMPRESS_TYPE="${10:-gzip}"
	local DISTSECTION
	if [ "$SECTION" = "${SECTION#*/}" ]; then
		DISTSECTION="main"
	else
		DISTSECTION="${SECTION%/*}"
	fi
	local BUILDDIR="${TMPWORKINGDIRECTORY}/incoming/${NAME}-${VERSION}"

	mkdir -p "$BUILDDIR/debian/source"
	echo "* most suckless software product ever" > "${BUILDDIR}/FEATURES"
	echo "#!/bin/sh
echo '$NAME says \"Hello!\"'" > "${BUILDDIR}/${NAME}"

	echo "Copyleft by Joe Sixpack $(date -u +%Y)" > "${BUILDDIR}/debian/copyright"
	echo "$NAME ($VERSION) $RELEASE; urgency=low

  * Initial release

 -- Joe Sixpack <joe@example.org>  $(date -u -R)" > "${BUILDDIR}/debian/changelog"
	{
		echo "Source: $NAME
Priority: $PRIORITY
Maintainer: Joe Sixpack <joe@example.org>
Standards-Version: 4.3.1
Rules-Requires-Root: no"
		if [ "$SECTION" != '<none>' ]; then
			echo "Section: $SECTION"
		fi
		local BUILDDEPS="$(printf "%b\n" "$DEPENDENCIES" | grep '^Build-')"
		test -z "$BUILDDEPS" || echo "$BUILDDEPS"
		echo "
Package: $NAME"

		if [ "$ARCH" = 'all' ]; then
			echo "Architecture: all"
		else
			echo "Architecture: any"
		fi
		local DEPS="$(printf "%b\n" "$DEPENDENCIES" | grep -v '^Build-')"
		test -z "$DEPS" || echo "$DEPS"
		printf "%b\n" "Description: $DESCRIPTION"
	} > "${BUILDDIR}/debian/control"

	echo '3.0 (native)' > "${BUILDDIR}/debian/source/format"
}

make_tiny_rules() {
	local OUT="$1"
	if command -v gmake >/dev/null 2>&1; then
		[ -e ${TMPWORKINGDIRECTORY}/bin/make ] || ln -s $(command -v gmake) ${TMPWORKINGDIRECTORY}/bin/make
		echo "#!${TMPWORKINGDIRECTORY}/bin/make -f" > "$OUT"
	else
		echo '#!/usr/bin/make -f' > "$OUT"
	fi
	echo '%:' >> "$OUT"
	echo '	dh $@' >> "$OUT"
}

setupsimplenativepackage() {
	_setupsimplenativepackage "$@"
	local NAME="$1"
	local VERSION="$3"
	local BUILDDIR="${TMPWORKINGDIRECTORY}/incoming/${NAME}-${VERSION}"
	test -e "${BUILDDIR}/debian/compat" || echo '10' > "${BUILDDIR}/debian/compat"
	test -e  "${BUILDDIR}/debian/rules" || make_tiny_rules "${BUILDDIR}/debian/rules"
}

buildsimplenativepackage() {
	local NAME="$1"
	local ARCH="$2"
	local VERSION="$3"
	local RELEASE="${4:-unstable}"
	local DEPENDENCIES="$5"
	local DESCRIPTION="$6"
	local SECTION="${7:-others}"
	local PRIORITY="${8:-optional}"
	local FILE_TREE="$9"
	local COMPRESS_TYPE="${10:-gzip}"
	local DISTSECTION
	if [ "$SECTION" = "${SECTION#*/}" ]; then
		DISTSECTION="main"
	else
		DISTSECTION="${SECTION%/*}"
	fi
	local BUILDDIR="${TMPWORKINGDIRECTORY}/incoming/${NAME}-${VERSION}"
	msgtest "Build source package in version ${VERSION} for ${RELEASE} in ${DISTSECTION}" "$NAME"
	_setupsimplenativepackage "$@"
	cd "${BUILDDIR}/.."
	testsuccess --nomsg dpkg-source -b ${NAME}-${VERSION}
	cd - >/dev/null
	sed -n 's#^dpkg-source: info: building [^ ]\+ in ##p' "${TMPWORKINGDIRECTORY}/rootdir/tmp/testsuccess.output" \
		| while read SRC; do
		echo "pool/${SRC}" >> "${BUILDDIR}/../${RELEASE}.${DISTSECTION}.srclist"
#		if expr match "${SRC}" '.*\.dsc' >/dev/null 2>&1; then
#			aptkey --keyring ./keys/joesixpack.pub --secret-keyring ./keys/joesixpack.sec --quiet --readonly \
#				adv --yes --default-key 'Joe Sixpack' \
#				--clearsign -o "${BUILDDIR}/../${SRC}.sign" "${BUILDDIR}/../$SRC"
#			mv "${BUILDDIR}/../${SRC}.sign" "${BUILDDIR}/../$SRC"
#		fi
	done

	for arch in $(getarchitecturesfromcommalist "$ARCH"); do
		msgtest "Build binary package for ${RELEASE} in ${SECTION}" "$NAME"
		rm -rf "${BUILDDIR}/debian/tmp"
		mkdir -p "${BUILDDIR}/debian/tmp/DEBIAN" "${BUILDDIR}/debian/tmp/usr/share/doc/${NAME}" "${BUILDDIR}/debian/tmp/usr/bin"
		cp "${BUILDDIR}/debian/copyright" "${BUILDDIR}/debian/changelog" "${BUILDDIR}/FEATURES" "${BUILDDIR}/debian/tmp/usr/share/doc/${NAME}"
		cp "${BUILDDIR}/${NAME}" "${BUILDDIR}/debian/tmp/usr/bin/${NAME}-${arch}"
                if [ -n "$FILE_TREE" ]; then
                    cp -ar "$FILE_TREE" "${BUILDDIR}/debian/tmp"
                fi

		(cd "${BUILDDIR}"; dpkg-gencontrol -DArchitecture=$arch)
		(cd "${BUILDDIR}/debian/tmp"; md5sum $(find usr/ -type f) > DEBIAN/md5sums)
		local LOG="${BUILDDIR}/../${NAME}_${VERSION}_${arch}.dpkg-deb.log"
		# ensure the right permissions as dpkg-deb insists
		chmod 755 "${BUILDDIR}/debian/tmp/DEBIAN"
		testsuccess --nomsg dpkg-deb -Z${COMPRESS_TYPE} --build "${BUILDDIR}/debian/tmp" "${BUILDDIR}/.."
		echo "pool/${NAME}_${VERSION}_${arch}.deb" >> "${BUILDDIR}/../${RELEASE}.${DISTSECTION}.pkglist"
	done

	local NM
	if [ "$(echo "$NAME" | cut -c 1-3)" = 'lib' ]; then
		NM="$(echo "$NAME" | cut -c 1-4)"
	else
		NM="$(echo "$NAME" | cut -c 1)"
	fi
	local CHANGEPATH="${BUILDDIR}/../${DISTSECTION}/${NM}/${NAME}/${NAME}_${VERSION}"
	mkdir -p "$CHANGEPATH"
	cp "${BUILDDIR}/debian/changelog" "$CHANGEPATH"
	rm -rf "${BUILDDIR}"
	msgdone "info"
}

buildpackage() {
	local BUILDDIR=$1
	local RELEASE=$2
	local SECTION=$3
	local ARCH=$(getarchitecture $4)
	local PKGNAME="$(echo "$BUILDDIR" | grep -o '[^/]*$')"
	local BUILDLOG="$(readlink -f "${BUILDDIR}/../${PKGNAME}_${RELEASE}_${SECTION}.dpkg-bp.log")"
	msgtest "Build package for ${RELEASE} in ${SECTION}" "$PKGNAME"
	cd "$BUILDDIR"
	if [ "$ARCH" = "all" ]; then
		ARCH="$(dpkg-architecture -qDEB_HOST_ARCH 2> /dev/null)"
	fi
	testsuccess --nomsg dpkg-buildpackage -uc -us -a$ARCH -d
	cp "${TMPWORKINGDIRECTORY}/rootdir/tmp/testsuccess.output" "$BUILDLOG"
	local PKGS="$(grep '^dpkg-deb: building package' "$BUILDLOG" | cut -d'/' -f 2 | sed -e "s#'\.##")"
	local SRCS="$(grep '^dpkg-source: info: building' "$BUILDLOG" | grep -o '[a-z0-9._+~-]*$')"
	cd - > /dev/null
	for PKG in $PKGS; do
		echo "pool/${PKG}" >> "${TMPWORKINGDIRECTORY}/incoming/${RELEASE}.${SECTION}.pkglist"
	done
	for SRC in $SRCS; do
		echo "pool/${SRC}" >> "${TMPWORKINGDIRECTORY}/incoming/${RELEASE}.${SECTION}.srclist"
	done
}

buildaptarchive() {
	if [ -d incoming ]; then
		buildaptarchivefromincoming "$@"
	else
		buildaptarchivefromfiles "$@"
	fi
}

createaptftparchiveconfig() {
	local COMPRESSORS="$(cut -d'	' -f 1 "${TMPWORKINGDIRECTORY}/rootdir/etc/testcase-compressor.conf" | tr '\n' ' ')"
	local COMPRESSORS="${COMPRESSORS%* }"
	local ARCHS="$(getarchitectures)"
	cat > ftparchive.conf <<EOF
Dir {
	ArchiveDir "$(readlink -f .)";
	CacheDir "$(readlink -f ..)";
	FileListDir "$(readlink -f pool/)";
};
Default {
	Packages::Compress "$COMPRESSORS";
	Sources::Compress "$COMPRESSORS";
	Contents::Compress "$COMPRESSORS";
	Translation::Compress "$COMPRESSORS";
	LongDescription "false";
};
TreeDefault {
	Directory "pool/";
	SrcDirectory "pool/";
};
EOF
	for DIST in $(find ./pool/ -maxdepth 1 -name '*.pkglist' -type f | cut -d'/' -f 3 | cut -d'.' -f 1 | sort | uniq); do
		cat <<EOF
tree "dists/$DIST" {
	Architectures "$ARCHS all source";
	FileList "${DIST}.\$(SECTION).pkglist";
	SourceFileList "${DIST}.\$(SECTION).srclist";
	Sections "$(find ./pool/ -maxdepth 1 -name "${DIST}.*.pkglist" -type f | cut -d'/' -f 3 | cut -d'.' -f 2 | sort | uniq | tr '\n' ' ')";
};
EOF
	done >> ftparchive.conf
}

buildaptftparchivedirectorystructure() {
	local DISTS="$(grep -i '^tree ' ftparchive.conf | cut -d'/' -f 2 | sed -e 's#".*##')"
	for DIST in $DISTS; do
		local SECTIONS="$(grep -i -A 5 "dists/$DIST" ftparchive.conf | grep -i 'Sections' | cut -d'"' -f 2)"
		for SECTION in $SECTIONS; do
			local ARCHS="$(grep -A 5 "dists/$DIST" ftparchive.conf | grep Architectures | cut -d'"' -f 2 | sed -e 's#source##')"
			for ARCH in $ARCHS; do
				mkdir -p "dists/${DIST}/${SECTION}/binary-${ARCH}"
			done
			mkdir -p "dists/${DIST}/${SECTION}/source"
			mkdir -p "dists/${DIST}/${SECTION}/i18n"
		done
	done
}

insertpackage() {
	local RELEASES="$1"
	local NAME="$2"
	local ARCH="$3"
	local VERSION="$4"
	local DEPENDENCIES="$5"
	local PRIORITY="${6:-optional}"
	local DESCRIPTION="${7:-an autogenerated dummy ${NAME}=${VERSION}/${RELEASES}
 If you find such a package installed on your system,
 something went horribly wrong! They are autogenerated
 und used only by testcases and serve no other purpose…}"
	local SECTION="${8:-other}"

	if [ "$SECTION" = "${SECTION#*/}" ]; then
		DISTSECTION="main"
	else
		DISTSECTION="${SECTION%/*}"
	fi
	local ARCHS=""
	for RELEASE in $(printf '%s' "$RELEASES" | tr ',' '\n'); do
		if [ "$RELEASE" = 'installed' ]; then
			insertinstalledpackage "$2" "$3" "$4" "$5" "$6" "$7" "$8"
			continue
		fi
		for arch in $(getarchitecturesfromcommalist "$ARCH"); do
			if [ "$arch" = 'none' ]; then
				ARCHS="$(getarchitectures)"
			else
				ARCHS="$arch"
			fi
			for BUILDARCH in $ARCHS; do
				local PPATH="aptarchive/dists/${RELEASE}/${DISTSECTION}/binary-${BUILDARCH}"
				mkdir -p "$PPATH"
				{
					echo "Package: $NAME
Priority: $PRIORITY
Section: $SECTION
Installed-Size: 42
Maintainer: Joe Sixpack <joe@example.org>"
					test "$arch" = 'none' || echo "Architecture: $arch"
					echo "Version: $VERSION
Filename: pool/${DISTSECTION}/${NAME}/${NAME}_${VERSION}_${arch}.deb"
					test -z "$DEPENDENCIES" || printf "%b\n" "$DEPENDENCIES"
					echo "Description: $(printf '%s' "$DESCRIPTION" | head -n 1)"
					echo "Description-md5: $(printf '%s' "$DESCRIPTION" | md5sum | cut -d' ' -f 1)"
					echo "SHA256: 0000000000000000000000000000000000000000000000000000000000000000"
					echo
				} >> "${PPATH}/Packages"
			done
		done
		mkdir -p "aptarchive/dists/${RELEASE}/${DISTSECTION}/source" "aptarchive/dists/${RELEASE}/${DISTSECTION}/i18n"
		touch "aptarchive/dists/${RELEASE}/${DISTSECTION}/source/Sources"
		echo "Package: $NAME
Description-md5: $(printf '%s' "$DESCRIPTION" | md5sum | cut -d' ' -f 1)
Description-en: $DESCRIPTION
" >> "aptarchive/dists/${RELEASE}/${DISTSECTION}/i18n/Translation-en"
	done
}

insertsource() {
	local RELEASES="$1"
	local NAME="$2"
	local ARCH="$3"
	local VERSION="$4"
	local DEPENDENCIES="$5"
	local BINARY="${6:-$NAME}"
	local ARCHS=""
	for RELEASE in $(printf '%s' "$RELEASES" | tr ',' '\n'); do
		local SPATH="aptarchive/dists/${RELEASE}/main/source"
		mkdir -p $SPATH
		local FILE="${SPATH}/Sources"
		local DSCFILE="${NAME}_${VERSION}.dsc"
		local TARFILE="${NAME}_${VERSION}.tar.gz"
		echo "Package: $NAME
Binary: $BINARY
Version: $VERSION
Maintainer: Joe Sixpack <joe@example.org>
Architecture: $ARCH" >> $FILE
		test -z "$DEPENDENCIES" || printf "%b\n" "$DEPENDENCIES" >> "$FILE"
		echo "Files:
 $(echo -n "$DSCFILE" | md5sum | cut -d' ' -f 1) $(echo -n "$DSCFILE" | wc -c) "$DSCFILE"
 $(echo -n "$TARFILE" | md5sum | cut -d' ' -f 1) $(echo -n "$TARFILE" | wc -c) "$TARFILE"
Checksums-Sha256:
 $(echo -n "$DSCFILE" | sha256sum | cut -d' ' -f 1) $(echo -n "$DSCFILE" | wc -c) "$DSCFILE"
 $(echo -n "$TARFILE" | sha256sum | cut -d' ' -f 1) $(echo -n "$TARFILE" | wc -c) "$TARFILE"
" >> "$FILE"
	done
}

insertinstalledpackage() {
	local NAME="$1"
	local ARCH="$2"
	local VERSION="$3"
	local DEPENDENCIES="$4"
	local PRIORITY="${5:-optional}"
	local STATUS="${6:-install ok installed}"
	local DESCRIPTION="${7:-an autogenerated dummy ${NAME}=${VERSION}/installed
 If you find such a package installed on your system,
 something went horribly wrong! They are autogenerated
 und used only by testcases and serve no other purpose…}"
	local SECTION="${8:-other}"

	local FILE='rootdir/var/lib/dpkg/status'
	local INFO='rootdir/var/lib/dpkg/info'
	for arch in $(getarchitecturesfromcommalist "$ARCH"); do
		echo "Package: $NAME
Status: $STATUS
Priority: $PRIORITY
Section: $SECTION
Installed-Size: 42
Maintainer: Joe Sixpack <joe@example.org>
Version: $VERSION" >> "$FILE"
		test "$arch" = 'none' || echo "Architecture: $arch" >> "$FILE"
		test -z "$DEPENDENCIES" || printf "%b\n" "$DEPENDENCIES" >> "$FILE"
		printf "%b\n" "Description: $DESCRIPTION" >> "$FILE"
		echo >> "$FILE"
		if [ "$(dpkg-query -W --showformat='${Multi-Arch}')" = 'same' ]; then
			echo -n > "${INFO}/${NAME}:${arch}.list"
		else
			echo -n > "${INFO}/${NAME}.list"
		fi
	done
}


buildaptarchivefromincoming() {
	msginfo "Build APT archive for ${CCMD}${0##*/}${CINFO} based on incoming packages…"
	cd aptarchive
	[ -e pool ] || ln -s ../incoming pool
	[ -e ftparchive.conf ] || createaptftparchiveconfig
	[ -e dists ] || buildaptftparchivedirectorystructure
	msgninfo "\tGenerate Packages, Sources and Contents files… "
	testsuccess aptftparchive generate ftparchive.conf
	cd - > /dev/null
	msgdone "info"
	generatereleasefiles "$@"
}

buildaptarchivefromfiles() {
	msginfo "Build APT archive for ${CCMD}${0##*/}${CINFO} based on prebuild files…"
	local DIR='aptarchive'
	if [ -d "${DIR}/dists" ]; then DIR="${DIR}/dists"; fi
	find "$DIR" -name 'Packages' -o -name 'Sources' -o -name 'Translation-*' | while read line; do
		msgninfo "\t${line} file… "
		compressfile "$line" "$1"
		msgdone "info"
	done
	generatereleasefiles "$@"
}

compressfile() {
	while read compressor extension command; do
		if [ "$compressor" = '.' ]; then
			if [ -n "$2" ]; then
				touch -d "$2" "$1"
			fi
			continue
		fi
		cat "$1" | $command > "${1}.${extension}"
		if [ -n "$2" ]; then
			touch -d "$2" "${1}.${extension}"
		fi
	done < "${TMPWORKINGDIRECTORY}/rootdir/etc/testcase-compressor.conf"
}

# can be overridden by testcases for their pleasure
getcodenamefromsuite() {
	case "$1" in
	unstable) echo 'sid';;
	*) echo -n "$1";;
	esac
}
getreleaseversionfromsuite() { true; }
getlabelfromsuite() { true; }
getoriginfromsuite() { true; }
getarchitecturesfromreleasefile() { echo "all $(getarchitectures)"; }
getnotautomaticfromsuite() {
	case "$1" in
	experimental|experimental2) echo "yes";;
	esac
}
getbutautomaticupgradesfromsuite() { true; }

aptftparchiverelease() {
	aptftparchive -qq release "$@" | sed -e '/0 Release$/ d' # remove the self reference
}
generatereleasefiles() {
	# $1 is the Date header and $2 is the ValidUntil header to be set
	# both should be given in notation date/touch can understand
	local DATE="$1"
	local VALIDUNTIL="$2"
	if [ -e aptarchive/dists ]; then
		msgninfo "\tGenerate Release files for dists… "
		for dir in $(find ./aptarchive/dists -mindepth 1 -maxdepth 1 -type d); do
			local ARCHITECTURES="$(getarchitecturesfromreleasefile "$dir")"
			local SUITE="$(echo "$dir" | cut -d'/' -f 4)"
			local CODENAME="$(getcodenamefromsuite $SUITE)"
			local VERSION="$(getreleaseversionfromsuite $SUITE)"
			local LABEL="$(getlabelfromsuite $SUITE)"
			local ORIGIN="$(getoriginfromsuite $SUITE)"
			local NOTAUTOMATIC="$(getnotautomaticfromsuite $SUITE)"
			local BUTAUTOMATICUPGRADES="$(getbutautomaticupgradesfromsuite $SUITE)"
			aptftparchiverelease "$dir" \
				-o APT::FTPArchive::Release::Suite="${SUITE}" \
				-o APT::FTPArchive::Release::Codename="${CODENAME}" \
				-o APT::FTPArchive::Release::Architectures="${ARCHITECTURES}" \
				-o APT::FTPArchive::Release::Label="${LABEL}" \
				-o APT::FTPArchive::Release::Origin="${ORIGIN}" \
				-o APT::FTPArchive::Release::Version="${VERSION}" \
				-o APT::FTPArchive::Release::NotAutomatic="${NOTAUTOMATIC}" \
				-o APT::FTPArchive::Release::ButAutomaticUpgrades="${BUTAUTOMATICUPGRADES}" \
				> "$dir/Release"
		done
	else
		msgninfo "\tGenerate Release files for flat… "
		aptftparchiverelease ./aptarchive > aptarchive/Release
	fi
	if [ -n "$DATE" -a "$DATE" != "now" ]; then
		for release in $(find ./aptarchive -name 'Release'); do
			sed -i "s/^Date: .*$/Date: $(date -u -d "$DATE" -R)/" "$release"
			touch -d "$DATE" "$release"
		done
	fi
	if [ -n "$VALIDUNTIL" ]; then
		sed -i "/^Date: / a\
Valid-Until: $(date -u -d "$VALIDUNTIL" -R)" $(find ./aptarchive -name 'Release')
	fi
	msgdone "info"
}

setupdistsaptarchive() {
	local APTARCHIVE="$(readlink -f ./aptarchive | sed 's# #%20#g')"
	rm -f root/etc/apt/sources.list.d/apt-test-*-deb.list
	rm -f root/etc/apt/sources.list.d/apt-test-*-deb-src.list
	for DISTS in $(find ./aptarchive/dists/ -mindepth 1 -maxdepth 1 -type d | cut -d'/' -f 4); do
		SECTIONS=$(find "./aptarchive/dists/${DISTS}/" -mindepth 1 -maxdepth 1 -type d | cut -d'/' -f 5 | tr '\n' ' ')
		msgninfo "\tadd deb and deb-src sources.list lines for ${CCMD}${DISTS} ${SECTIONS}${CINFO}… "
		echo "deb file://$APTARCHIVE $DISTS $SECTIONS" > "rootdir/etc/apt/sources.list.d/apt-test-${DISTS}-deb.list"
		echo "deb-src file://$APTARCHIVE $DISTS $SECTIONS" > "rootdir/etc/apt/sources.list.d/apt-test-${DISTS}-deb-src.list"
		msgdone "info"
	done
}

setupflataptarchive() {
	local APTARCHIVE="$(readlink -f ./aptarchive)"
	local APTARCHIVEURI="$(readlink -f ./aptarchive | sed 's# #%20#g')"
	if [ -f "${APTARCHIVE}/Packages" ]; then
		msgninfo "\tadd deb sources.list line… "
		echo "deb file://$APTARCHIVEURI /" > 'rootdir/etc/apt/sources.list.d/apt-test-archive-deb.list'
		msgdone 'info'
	else
		rm -f 'rootdir/etc/apt/sources.list.d/apt-test-archive-deb.list'
	fi
	if [ -f "${APTARCHIVE}/Sources" ]; then
		msgninfo "\tadd deb-src sources.list line… "
		echo "deb-src file://$APTARCHIVEURI /" > 'rootdir/etc/apt/sources.list.d/apt-test-archive-deb-src.list'
		msgdone 'info'
	else
		rm -f 'rootdir/etc/apt/sources.list.d/apt-test-archive-deb-src.list'
	fi
}

setupaptarchive() {
	local NOUPDATE=0
	if [ "$1" = '--no-update' ]; then
		NOUPDATE=1
		shift
	fi
	buildaptarchive "$@"
	if [ -e aptarchive/dists ]; then
		setupdistsaptarchive
	else
		setupflataptarchive
	fi
	signreleasefiles 'Joe Sixpack'
	if [ "1" != "$NOUPDATE" ]; then
		testsuccess aptget update -o Debug::pkgAcquire::Worker=true -o Debug::Acquire::gpgv=true
	fi
}

killgpgagent() {
	if [ -z "${TMPWORKINGDIRECTORY}" ]; then return; fi
	local GPGHOME="${TMPWORKINGDIRECTORY}/signinghome"
	if [ ! -e "${GPGHOME}" ]; then return; fi
	# ensure the agent dies quickly as different versions have different suicide heuristics
	GNUPGHOME="${GPGHOME}" gpgconf --kill gpg-agent >/dev/null 2>&1 || true
	rm -rf "$GPGHOME"
}
dosigning() {
	local KEY="$1"
	shift
	local GPGHOME="${TMPWORKINGDIRECTORY}/signinghome"
	if [ -n "$APT_TEST_SIGNINGHOME" ]; then
		GPGHOME="$APT_TEST_SIGNINGHOME"
	else
		if [ ! -e "$GPGHOME" ]; then
			mkdir -p --mode=700 "${GPGHOME}"
			addtrap 'prefix' 'killgpgagent;'
		fi
	fi
	testsuccess aptkey --quiet --keyring ${KEY}.pub --secret-keyring ${KEY}.sec --readonly \
		--homedir "${GPGHOME}" adv --batch --yes --digest-algo "${APT_TESTS_DIGEST_ALGO:-SHA512}" \
		"$@"
}
signreleasefiles() {
	local SIGNERS="${1:-Joe Sixpack}"
	local REPODIR="${2:-aptarchive}"
	if [ -n "$1" ]; then shift; fi
	if [ -n "$1" ]; then shift; fi
	local KEY="keys/$(echo "$SIGNERS" | tr 'A-Z' 'a-z' | tr -d ' ,')"
	msgninfo "\tSign archive with $SIGNERS key $KEY… "
	local REXKEY='keys/rexexpired'
	local SECEXPIREBAK="${REXKEY}.sec.bak"
	local PUBEXPIREBAK="${REXKEY}.pub.bak"
	local SIGUSERS=""
	while [ -n "${SIGNERS%%,*}" ]; do
		local SIGNER="${SIGNERS%%,*}"
		if [ "${SIGNERS}" = "${SIGNER}" ]; then
			SIGNERS=""
		fi
		SIGNERS="${SIGNERS#*,}"
		# FIXME: This should be the full name, but we can't encode the space properly currently
		SIGUSERS="${SIGUSERS} -u ${SIGNER#* }"
		if [ "${SIGNER}" = 'Rex Expired' ]; then
			# the key is expired, so gpg doesn't allow one to sign with and the --faked-system-time
			# option doesn't exist anymore (and using faketime would add a new obscure dependency)
			# therefore we 'temporary' make the key not expired and restore a backup after signing
			cp "${REXKEY}.sec" "$SECEXPIREBAK"
			cp "${REXKEY}.pub" "$PUBEXPIREBAK"
			local SECUNEXPIRED="${REXKEY}.sec.unexpired"
			local PUBUNEXPIRED="${REXKEY}.pub.unexpired"
			if [ -f "$SECUNEXPIRED" ] && [ -f "$PUBUNEXPIRED" ]; then
				cp "$SECUNEXPIRED" "${REXKEY}.sec"
				cp "$PUBUNEXPIRED" "${REXKEY}.pub"
			else
				if ! printf "expire\n1w\nsave\n" | aptkey --quiet --keyring "${REXKEY}.pub" --secret-keyring "${REXKEY}.sec" \
					--readonly adv --batch --yes --digest-algo "${APT_TESTS_DIGEST_ALGO:-SHA512}" \
					--default-key "$SIGNER" --command-fd 0 --edit-key "${SIGNER}" >setexpire.gpg 2>&1; then
					cat setexpire.gpg
					exit 1
				fi
				cp "${REXKEY}.sec" "$SECUNEXPIRED"
				cp "${REXKEY}.pub" "$PUBUNEXPIRED"
			fi
		fi
		if [ ! -e "${KEY}.pub" ]; then
			local K="keys/$(echo "$SIGNER" | tr 'A-Z' 'a-z' | tr -d ' ,')"
			cat "${K}.pub" >> "${KEY}.new.pub"
			cat "${K}.sec" >> "${KEY}.new.sec"
		fi
	done
	if [ ! -e "${KEY}.pub" ]; then
		mv "${KEY}.new.pub" "${KEY}.pub"
		mv "${KEY}.new.sec" "${KEY}.sec"
	fi
	for RELEASE in $(find "${REPODIR}/" -name Release); do
		# we might have set a specific date for the Release file, so copy it
		local DATE="$(stat --format "%y" "${RELEASE}")"
		if [ "$APT_DONT_SIGN" = 'Release.gpg' ]; then
			rm -f "${RELEASE}.gpg"
		else
			dosigning "$KEY" "$@" $SIGUSERS --armor --detach-sign --sign --output "${RELEASE}.gpg" "${RELEASE}"
			touch -d "$DATE" "${RELEASE}.gpg"
		fi
		local INRELEASE="${RELEASE%/*}/InRelease"
		if [ "$APT_DONT_SIGN" = 'InRelease' ]; then
			rm -f "$INRELEASE"
		else
			dosigning "$KEY" "$@" $SIGUSERS --clearsign --output "$INRELEASE" "$RELEASE"
			touch -d "$DATE" "${INRELEASE}"
		fi
	done
	if [ -f "$SECEXPIREBAK" ] && [ -f "$PUBEXPIREBAK" ]; then
		mv -f "$SECEXPIREBAK" "${REXKEY}.sec"
		mv -f "$PUBEXPIREBAK" "${REXKEY}.pub"
	fi
	msgdone 'info'
}

redatereleasefiles() {
	local DATE="$(date -u -d "$1" -R)"
	for release in $(find aptarchive/ -name 'Release'); do
		sed -i "s/^Date: .*$/Date: ${DATE}/" "$release"
		touch -d "$DATE" "$release"
	done
	signreleasefiles "${2:-Joe Sixpack}"
}

webserverconfig() {
	local WEBSERVER="${3:-http://localhost:${APTHTTPPORT}}"
	local NOCHECK=false
	if [ "$1" = '--no-check' ]; then
		NOCHECK=true
		shift
	fi
	local DOWNLOG="${TMPWORKINGDIRECTORY}/rootdir/tmp/download-testfile.log"
	local STATUS="${TMPWORKINGDIRECTORY}/downloaded/webserverconfig.status"
	rm -f "$STATUS" "$DOWNLOG"
	local URI
	if [ -n "$2" ]; then
		msgtest "Set webserver config option '${1}' to" "$2"
		URI="${WEBSERVER}/_config/set/$(apthelper quote-string "${1}" '/?#')/$(apthelper quote-string "${2}" '/?#')"
	else
		msgtest 'Clear webserver config option' "${1}"
		URI="${WEBSERVER}/_config/clear/$(apthelper quote-string "${1}" '/?#')"
	fi
	if downloadfile "$URI" "$STATUS" > "$DOWNLOG"; then
		msgpass
	else
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/webserverconfig.output"
		cat "$DOWNLOG" "$STATUS" >"$OUTPUT" 2>&1 || true
		msgfailoutput '' "$OUTPUT"
	fi
	$NOCHECK || testwebserverlaststatuscode '200'
}

rewritesourceslist() {
	local APTARCHIVE="file://$(readlink -f "${TMPWORKINGDIRECTORY}/aptarchive" | sed 's# #%20#g')"
	local APTARCHIVE2="copy://$(readlink -f "${TMPWORKINGDIRECTORY}/aptarchive" | sed 's# #%20#g')"
	for LIST in $(find "${TMPWORKINGDIRECTORY}/rootdir/etc/apt/sources.list.d/" -name 'apt-test-*.list'); do
		sed -i $LIST -e "s#$APTARCHIVE#${1}#" -e "s#$APTARCHIVE2#${1}#" \
			-e "s#http://[^@]*@\?localhost:${APTHTTPPORT}/\?#${1}#" \
			-e "s#https://[^@]*@\?localhost:${APTHTTPSPORT}/\?#${1}#"
	done
}

# wait for up to 10s for a pid file to appear to avoid possible race
# when a helper is started and doesn't write the PID quick enough
waitforpidfile() {
        local PIDFILE="$1"
        for i in $(seq 10); do
                if test -s "$PIDFILE"; then
                        return 0
                fi
                sleep 1
        done
        msgdie "waiting for $PIDFILE failed"
        return 1
}

changetowebserver() {
	local REWRITE='no'
	if [ "$1" != '--no-rewrite' ]; then
		REWRITE='yes'
	else
		shift
	fi
	if test -x "${APTTESTHELPERSBINDIR}/aptwebserver"; then
		cd aptarchive
		local LOG="webserver.log"
		if ! aptwebserver --port 0 -o aptwebserver::fork=1 -o aptwebserver::portfile='aptwebserver.port' -o aptwebserver::logfiles="$(readlink -f .)/$LOG" "$@" >$LOG 2>&1 ; then
			cat "$LOG"
			false
		fi
		waitforpidfile aptwebserver.pid
		local PID="$(cat aptwebserver.pid)"
		if [ -z "$PID" ]; then
			msgdie 'Could not fork aptwebserver successfully'
		fi
		addtrap "kill $PID;"
		waitforpidfile aptwebserver.port
		APTHTTPPORT="$(cat aptwebserver.port)"
		if [ -z "$APTHTTPPORT" ]; then
			msgdie 'Could not get port for aptwebserver successfully'
		fi
		cd - > /dev/null
	else
		msgdie 'You have to build apt from source to have test/interactive-helper/aptwebserver available for tests requiring a webserver'
	fi
	if [ "$REWRTE" != 'yes' ]; then
		rewritesourceslist "http://localhost:${APTHTTPPORT}/"
	fi
}

changetohttpswebserver() {
	local stunnel4
	if command -v stunnel4 >/dev/null 2>&1; then
		stunnel4=stunnel4
	elif command -v stunnel >/dev/null 2>&1; then
		stunnel4=stunnel
	else
		msgdie 'You need to install stunnel4 for https testcases'
	fi
	if [ ! -e "${TMPWORKINGDIRECTORY}/aptarchive/aptwebserver.pid" ]; then
		changetowebserver --no-rewrite "$@"
	fi
	echo "pid = ${TMPWORKINGDIRECTORY}/aptarchive/stunnel.pid
cert = ${TMPWORKINGDIRECTORY}/rootdir/etc/webserver.pem
output = /dev/null

[https]
accept = 127.0.0.1:0
connect = $APTHTTPPORT
" > "${TMPWORKINGDIRECTORY}/stunnel.conf"
	$stunnel4 "${TMPWORKINGDIRECTORY}/stunnel.conf"
        waitforpidfile "${TMPWORKINGDIRECTORY}/aptarchive/stunnel.pid"
	local PID="$(cat "${TMPWORKINGDIRECTORY}/aptarchive/stunnel.pid")"
        if [ -z "$PID" ]; then
		msgdie 'Could not fork $stunnel4 successfully'
	fi
	addtrap 'prefix' "kill ${PID};"
	APTHTTPSPORT="$(lsof -i -n | awk "/^$stunnel4 / && \$2 == \"${PID}\" {print \$9; exit; }" | cut -d':' -f 2)"
	webserverconfig 'aptwebserver::port::https' "$APTHTTPSPORT" "https://localhost:${APTHTTPSPORT}"
	rewritesourceslist "https://localhost:${APTHTTPSPORT}/"
}

changetocdrom() {
	mkdir -p rootdir/media/cdrom/.disk
	local CD="$(readlink -f rootdir/media/cdrom)"
	cat > rootdir/etc/apt/apt.conf.d/00cdrom <<EOF
acquire::cdrom::mount "${CD}";
acquire::cdrom::"${CD}/"::mount "mv ${CD}-unmounted ${CD}";
acquire::cdrom::"${CD}/"::umount "mv ${CD} ${CD}-unmounted";
acquire::cdrom::autodetect 0;
EOF
	echo -n "$1" > "${CD}/.disk/info"
	if [ ! -d aptarchive/dists ]; then
		msgdie 'Flat file archive cdroms can not be created currently'
		return 1
	fi
	mv aptarchive/dists "$CD"
	ln -s "$(readlink -f ./incoming)" "$CD/pool"
	find rootdir/etc/apt/sources.list.d/ -name 'apt-test-*.list' -delete
	# start with an unmounted disk
	mv "${CD}" "${CD}-unmounted"
	# we don't want the disk to be modifiable
	addtrap 'prefix' "chmod -f -R +w '$(escape_shell "$PWD/rootdir/media/cdrom/dists/")' '$(escape_shell "$PWD/rootdir/media/cdrom-unmounted/dists/")' || true;"
	chmod -R 555 rootdir/media/cdrom-unmounted/dists
}

downloadfile() {
	local PROTO="${1%%:*}"
	if ! apthelper -o Debug::Acquire::${PROTO}=1 -o Debug::pkgAcquire::Worker=1 \
		download-file "$1" "$2" "$3" 2>&1 ; then
		return 1
	fi
	# only if the file exists the download was successful
	if [ -r "$2" ]; then
		return 0
	else
		return 1
	fi
}

cleanup_output() {
	cat "$1" | sed \
		-e '/gpgv: WARNING: This key is not suitable for signing in --compliance=gnupg mode/ d' \
		-e '/^profiling:/ d' \
		| sed -e '/\.\.\.profiling:/ {N;s#\.\.\.profiling:.*\n#...#g}' \
			>"$2"
}

checkdiff() {
	local TMPFILE1="${TMPWORKINGDIRECTORY}/rootdir/tmp/checkdiff.1.tmp"
	local TMPFILE2="${TMPWORKINGDIRECTORY}/rootdir/tmp/checkdiff.2.tmp"
	touch "$TMPFILE1" "$TMPFILE2"

	cleanup_output "$1" "$TMPFILE1"
	cleanup_output "$2" "$TMPFILE2"

	local DIFFTEXT="$(command diff -u "$TMPFILE1" "$TMPFILE2" 2>&1 | sed -e '/^---/ d' -e '/^+++/ d' -e '/^@@/ d')"
	if [ -n "$DIFFTEXT" ]; then
		echo >&2
		echo >&2 "$DIFFTEXT"
		return 1
	else
		return 0
	fi
}

testoutputequal() {
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testoutputequal.output"
	local COMPAREFILE="$1"
	shift
	if "$@" 2>&1 | checkdiff "$COMPAREFILE" - >"$OUTPUT" 2>&1; then
		msgpass
	else
		echo "=== content of file we compared with (${COMPAREFILE}) ===" >>"${OUTPUT}"
		cat "$COMPAREFILE" >>"${OUTPUT}"
		msgfailoutput '' "$OUTPUT" "$@"
	fi
}

testfileequal() {
	msggroup 'testfileequal'
	local MSG='Test for correctness of file'
	if [ "$1" = '--nomsg' ]; then
		MSG=''
		shift
	fi
	local FILE="$1"
	shift
	if [ -n "$MSG" ]; then
		msgtest "$MSG" "$FILE"
	fi
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testfileequal.output"
	if [ -z "$*" ]; then
		testoutputequal "$FILE" echo -n ''
	else
		testoutputequal "$FILE" echo "$*"
	fi
	msggroup
}

testempty() {
	msggroup 'testempty'
	if [ "$1" = '--nomsg' ]; then
		shift
	else
		msgtest "Test for no output of" "$*"
	fi
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testempty.comparefile"
	if "$@" >"$COMPAREFILE" 2>&1 && test ! -s "$COMPAREFILE"; then
		msgpass
	else
		msgfailoutput '' "$COMPAREFILE" "$@"
	fi
	aptautotest 'testempty' "$@"
	msggroup
}
testwarningempty() {
	testwarning "$@"
	testfailure grep -v '^W:' "${ROOTDIR}/tmp/testwarning.output"
}
testnotempty() {
	msggroup 'testnotempty'
	msgtest "Test for some output of" "$*"
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testnotempty.comparefile"
	if ("$@" >"$COMPAREFILE" 2>&1 || true) && test -s "$COMPAREFILE"; then
		msgpass
	else
		msgfailoutput '' "$COMPAREFILE" "$@"
	fi
	aptautotest 'testnotempty' "$@"
	msggroup
}

testequal() {
	msggroup 'testequal'
	local MSG='Test of equality of'
	if [ "$1" = '--nomsg' ]; then
		MSG=''
		shift
	fi

	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testequal.comparefile"
	echo "$1" > "$COMPAREFILE"
	shift

	if [ -n "$MSG" ]; then
		msgtest "$MSG" "$*"
	fi
	testoutputequal "$COMPAREFILE" "$@"
	aptautotest 'testequal' "$@"
	msggroup
}

testequalor2() {
	msggroup 'testequalor2'
	local COMPAREFILE1="${TMPWORKINGDIRECTORY}/rootdir/tmp/testequalor2.comparefile1"
	local COMPAREFILE2="${TMPWORKINGDIRECTORY}/rootdir/tmp/testequalor2.comparefile2"
	local COMPAREAGAINST="${TMPWORKINGDIRECTORY}/rootdir/tmp/testequalor2.compareagainst"
	echo "$1" > "$COMPAREFILE1"
	echo "$2" > "$COMPAREFILE2"
	shift 2
	msgtest "Test for equality OR of" "$*"
	"$@" >"$COMPAREAGAINST" 2>&1 || true
	if checkdiff "$COMPAREFILE1" "$COMPAREAGAINST" >/dev/null 2>&1 || \
		checkdiff "$COMPAREFILE2" "$COMPAREAGAINST" >/dev/null 2>&1
	then
		msgpass
	else
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testequal.output"
		echo -n "\n${CINFO}Diff against OR 1${CNORMAL}" >"$OUTPUT" 2>&1
		checkdiff "$COMPAREFILE1" "$COMPAREAGAINST" >"$OUTPUT" 2>&1 || true
		echo -n "${CINFO}Diff against OR 2${CNORMAL}" >"$OUTPUT" 2>&1
		checkdiff "$COMPAREFILE2" "$COMPAREAGAINST" >"$OUTPUT" 2>&1 || true
		msgfailoutput '' "$OUTPUT"
	fi
	aptautotest 'testequalor2' "$@"
	msggroup
}

testshowvirtual() {
	msggroup 'testshowvirtual'
	local VIRTUAL="N: Can't select versions from package '$1' as it is purely virtual"
	local PACKAGE="$1"
	shift
	while [ -n "$1" ]; do
		VIRTUAL="${VIRTUAL}
N: Can't select versions from package '$1' as it is purely virtual"
		PACKAGE="${PACKAGE} $1"
		shift
	done
	msgtest "Test for virtual packages" "apt-cache show $PACKAGE"
	VIRTUAL="${VIRTUAL}
N: No packages found"
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testshowvirtual.comparefile"
	local ARCH="$(getarchitecture 'native')"
	echo "$VIRTUAL" | sed -e "s/:$ARCH//" -e 's/:all//' >"$COMPAREFILE"
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testshowvirtual.output"
	testoutputequal "$COMPAREFILE" aptcache show "$PACKAGE"
	msggroup
}

testnopackage() {
	msggroup 'testnopackage'
	msgtest "Test for non-existent packages" "apt-cache show $*"
	local SHOWPKG="$(aptcache show "$@" 2>&1 | grep '^Package: ')"
	if [ -n "$SHOWPKG" ]; then
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testnopackage.output"
		echo "$SHOWPKG" >"$OUTPUT"
		msgfailoutput '' "$OUTPUT"
	else
		msgpass
	fi
	msggroup
}
testnosrcpackage() {
	msggroup 'testnosrcpackage'
	msgtest "Test for non-existent source packages" "apt-cache showsrc $*"
	local SHOWPKG="$(aptcache showsrc "$@" 2>&1 | grep '^Package: ')"
	if [ -n "$SHOWPKG" ]; then
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testnosrcpackage.output"
		echo "$SHOWPKG" >"$OUTPUT"
		msgfailoutput '' "$OUTPUT"
	else
		msgpass
	fi
	msggroup
}

testdpkgstatus() {
	msggroup 'testdpkgstatus'
	local STATE="$1"
	local NR="$2"
	shift 2
	msgtest "Test that $NR package(s) are in state $STATE with" "dpkg -l $*"
	local PKGS="$(dpkg -l "$@" 2>/dev/null | grep "^${STATE}" | wc -l)"
	if [ "$PKGS" != $NR ]; then
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testnopackage.output"
		echo "$PKGS" >"$OUTPUT"
		dpkg -l "$@" | grep '^[a-z]' >"$OUTPUT" >&2 || true
		msgfailoutput '' "$OUTPUT"
	else
		msgpass
	fi
	msggroup
}

testdpkginstalled() {
	msggroup 'testdpkginstalled'
	testdpkgstatus 'ii' "$#" "$@"
	msggroup
}

testdpkgnotinstalled() {
	msggroup 'testdpkgnotinstalled'
	testdpkgstatus 'ii' '0' "$@"
	msggroup
}

testmarkedauto() {
	msggroup 'testmarkedauto'
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testmarkedauto.comparefile"
	if [ -n "$1" ]; then
		msgtest 'Test for correctly marked as auto-installed' "$*"
		while [ -n "$1" ]; do echo "$1"; shift; done | sort > "$COMPAREFILE"
	else
		msgtest 'Test for correctly marked as auto-installed' 'no package'
		echo -n > "$COMPAREFILE"
	fi
	testoutputequal "$COMPAREFILE" aptmark showauto
	msggroup
}
testmarkedmanual() {
	msggroup 'testmarkedmanual'
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testmarkedmanual.comparefile"
	if [ -n "$1" ]; then
		msgtest 'Test for correctly marked as manually installed' "$*"
		while [ -n "$1" ]; do echo "$1"; shift; done | sort > "$COMPAREFILE"
	else
		msgtest 'Test for correctly marked as manually installed' 'no package'
		echo -n > "$COMPAREFILE"
	fi
	testoutputequal "$COMPAREFILE" aptmark showmanual
	msggroup
}

catfile() {
	if [ "${1##*.}" = 'deb' ]; then
		stat >&2 "$1" || true
		file >&2 "$1" || true
	else
		cat >&2 "$1" || true
	fi
}
msgfailoutput() {
	msgreportheader 'msgfailoutput'
	local MSG="$1"
	local OUTPUT="$2"
	shift 2
	local CMD="$1"
	if [ "$1" = 'grep' -o "$1" = 'tail' -o "$1" = 'head' ]; then
		echo >&2
		while [ -n "$2" ]; do shift; done
		echo "#### Complete file: $1 ####"
		catfile "$1"
		echo "#### $CMD output ####"
	elif [ "$1" = 'test' ]; then
		echo >&2
		# doesn't support ! or non-file flags
		msgfailoutputstatfile() {
			local FILEFLAGS='^-[bcdefgGhkLOprsStuwx]$'
			if expr match "$1" "$FILEFLAGS" >/dev/null; then
				echo "#### stat(2) of file: $2 ####"
				stat "$2" || true
				if test -d "$2"; then
					echo "#### The directory contains: $2 ####"
					ls >&2 "$2" || true
				elif test -e "$2"; then
					echo "#### Complete file: $2 ####"
					catfile "$2"
				fi
			fi
		}
		msgfailoutputstatfile "$2" "$3"
		while [ -n "$5" ] && [ "$4" = '-o' -o "$4" = '-a' ]; do
			shift 3
			msgfailoutputstatfile "$2" "$3"
		done
		echo '#### test output ####'
	elif [ "$1" = 'cmp' ]; then
		echo >&2
		while [ -n "$2" ]; do
			echo "#### Complete file: $2 ####"
			catfile "$2"
			shift
		done
		echo '#### cmp output ####'
	fi
	catfile "$OUTPUT"
	msgfail "$MSG"
}

testsuccesswithglobalerror() {
	local TYPE="$1"
	local ERRORS="$2"
	shift 2
	msggroup "$TYPE"
	if [ "$1" = '--nomsg' ]; then
		shift
	else
		msgtest 'Test for successful execution of' "$*"
	fi
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/${TYPE}.output"
	if "$@" >"${OUTPUT}" 2>&1; then
		if expr match "$1" '^apt.*' >/dev/null; then
			if grep -q -E ' runtime error: ' "$OUTPUT"; then
				msgfailoutput 'compiler detected undefined behavior' "$OUTPUT" "$@"
			elif grep -E "^[${ERRORS}]: " "$OUTPUT" > "${TMPWORKINGDIRECTORY}/rootdir/tmp/checkforwarnings.output" 2>&1; then
				if [ "$IGNORE_PTY_NOT_MOUNTED" = '1' ]; then
					if echo 'E: Can not write log (Is /dev/pts mounted?) - posix_openpt (2: No such file or directory)' \
						| cmp - "${TMPWORKINGDIRECTORY}/rootdir/tmp/checkforwarnings.output" >/dev/null 2>&1; then
						msgpass
					else
						msgfailoutput 'successful run, but output contains warnings/errors' "$OUTPUT" "$@"
					fi
				else
					msgfailoutput 'successful run, but output contains warnings/errors' "$OUTPUT" "$@"
				fi
			elif [ "$TYPE" = 'testsuccesswithnotice' ]; then
				if grep -q -E "^N: " "$OUTPUT"; then
					msgpass
				else
					msgfailoutput 'successful run, but output had no notices' "$OUTPUT" "$@"
				fi
			else
				msgpass
			fi
		else
			msgpass
		fi
	else
		local EXITCODE=$?
		msgfailoutput "exitcode $EXITCODE" "$OUTPUT" "$@"
	fi
	aptautotest "$TYPE" "$@"
	msggroup
}
testsuccesswithnotice() {
	testsuccesswithglobalerror 'testsuccesswithnotice' 'WE' "$@"
}
testsuccess() {
	testsuccesswithglobalerror 'testsuccess' 'NWE' "$@"
}
testwarning() {
	msggroup 'testwarning'
	if [ "$1" = '--nomsg' ]; then
		shift
	else
		msgtest 'Test for successful execution with warnings of' "$*"
	fi
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testwarning.output"
	if "$@" >"${OUTPUT}" 2>&1; then
		if expr match "$1" '^apt.*' >/dev/null; then
			if grep -q -E ' runtime error: ' "$OUTPUT"; then
				msgfailoutput 'compiler detected undefined behavior' "$OUTPUT" "$@"
			elif grep -q -E '^E: ' "$OUTPUT"; then
				msgfailoutput 'successful run, but output contains errors' "$OUTPUT" "$@"
			elif ! grep -q -E '^W: ' "$OUTPUT"; then
				msgfailoutput 'successful run, but output contains no warnings' "$OUTPUT" "$@"
			else
				msgpass
			fi
		else
			msgpass
		fi
	else
		local EXITCODE=$?
		msgfailoutput "exitcode $EXITCODE" "$OUTPUT" "$@"
	fi
	aptautotest 'testwarning' "$@"
	msggroup
}
testfailure() {
	msggroup 'testfailure'
	if [ "$1" = '--nomsg' ]; then
		shift
	else
		msgtest 'Test for failure in execution of' "$*"
	fi
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testfailure.output"
	if "$@" >"${OUTPUT}" 2>&1; then
		local EXITCODE=$?
		msgfailoutput "exitcode $EXITCODE" "$OUTPUT" "$@"
	else
		local EXITCODE=$?
		if expr match "$1" '^apt.*' >/dev/null; then
			if [ "$1" = 'aptkey' ]; then
				if grep -q " Can't check signature: 
 BAD signature from 
 signature could not be verified" "$OUTPUT"; then
					msgpass
				else
					msgfailoutput "run failed with exitcode ${EXITCODE}, but no signature error" "$OUTPUT" "$@"
				fi
			else
				if grep -q -E ' runtime error: ' "$OUTPUT"; then
					msgfailoutput 'compiler detected undefined behavior' "$OUTPUT" "$@"
				elif grep -q -E '==ERROR' "$OUTPUT"; then
					msgfailoutput 'compiler sanitizers reported errors' "$OUTPUT" "$@"
				elif ! grep -q -E '^E: ' "$OUTPUT"; then
					msgfailoutput "run failed with exitcode ${EXITCODE}, but with no errors" "$OUTPUT" "$@"
				else
					msgpass
				fi
			fi
		else
			msgpass
		fi
	fi
	aptautotest 'testfailure' "$@"
	msggroup
}

testreturnstateequal() {
	local STATE="$1"
	if [ "$STATE" = 'testsuccesswithglobalerror' ]; then
		local STATE="$2"
		local TYPE="$3"
		shift 3
		msggroup "${STATE}equal"
		if [ "$1" != '--nomsg' ]; then
			local CMP="$1"
			shift
			testsuccesswithglobalerror "$STATE" "$TYPE" "$@"
			testfileequal "${TMPWORKINGDIRECTORY}/rootdir/tmp/${STATE}.output" "$CMP"
		else
			local CMP="$2"
			shift 2
			testsuccesswithglobalerror "$STATE" "$TYPE" "$@"
			testfileequal "${TMPWORKINGDIRECTORY}/rootdir/tmp/${STATE}.output" "$CMP"
		fi
	else
		msggroup "${STATE}equal"
		if [ "$2" != '--nomsg' ]; then
			local CMP="$2"
			shift 2
			"$STATE" "$@"
			testfileequal "${TMPWORKINGDIRECTORY}/rootdir/tmp/${STATE}.output" "$CMP"
		else
			local CMP="$3"
			shift 3
			"$STATE" --nomsg "$@"
			testfileequal "${TMPWORKINGDIRECTORY}/rootdir/tmp/${STATE}.output" "$CMP"
		fi
	fi
	msggroup
}
testsuccessequal() {
	# we compare output, so we know perfectly well about N:
	testreturnstateequal 'testsuccesswithglobalerror' 'testsuccess' 'WE' "$@"
}
testwarningequal() {
	testreturnstateequal 'testwarning' "$@"
}
testfailureequal() {
	testreturnstateequal 'testfailure' "$@"
}

testfailuremsg() {
	msggroup 'testfailuremsg'
	local CMP="$1"
	shift
	testfailure "$@"
	msgtest 'Check that the output of the previous failed command has expected' 'failures and warnings'
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testfailuremsg.comparefile"
	grep '^\(W\|E\|N\):' "${TMPWORKINGDIRECTORY}/rootdir/tmp/testfailure.output" > "$COMPAREFILE" 2>&1 || true
	testoutputequal "$COMPAREFILE" echo "$CMP"
	msggroup
}
testwarningmsg() {
	msggroup 'testwarningmsg'
	local CMP="$1"
	shift
	testwarning "$@"
	msgtest 'Check that the output of the previous warned command has expected' 'warnings'
	local COMPAREFILE="${TMPWORKINGDIRECTORY}/rootdir/tmp/testwarningmsg.comparefile"
	grep '^\(W\|E\|N\):' "${TMPWORKINGDIRECTORY}/rootdir/tmp/testwarning.output" > "$COMPAREFILE" 2>&1 || true
	testoutputequal "$COMPAREFILE" echo "$CMP"
	msggroup
}

testfilestats() {
	msggroup 'testfilestats'
	msgtest "Test that file $1 has $2 $3" "$4"
	if [ "$4" "$3" "$(stat --format "$2" "$1")" ]; then
		msgpass
	else
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testfilestats.output"
		{
			ls -ld "$1" || true
			echo -n "stat(1) reports for $2: "
			stat --format "$2" "$1" || true
		} >"$OUTPUT" 2>&1
		msgfailoutput '' "$OUTPUT"
	fi
	msggroup
}
testaccessrights() {
	msggroup 'testaccessrights'
	testfilestats "$1" '%a' '=' "$2"
	msggroup
}

testwebserverlaststatuscode() {
	msggroup 'testwebserverlaststatuscode'
	local DOWNLOG="${TMPWORKINGDIRECTORY}/rootdir/tmp/webserverstatus-testfile.log"
	local STATUS="${TMPWORKINGDIRECTORY}/downloaded/webserverstatus-statusfile.log"
	rm -f "$DOWNLOG" "$STATUS"
	msgtest 'Test last status code from the webserver was' "$1"
	if downloadfile "http://localhost:${APTHTTPPORT}/_config/find/aptwebserver::last-status-code" "$STATUS" > "$DOWNLOG" && [ "$(cat "$STATUS")" = "$1" ]; then
		msgpass
	else
		local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/testwebserverlaststatuscode.output"
		{
			if [ -n "$2" ]; then
				shift
				echo >&2 '#### Additionally provided output files contain:'
				cat >&2 "$@"
			fi
			echo >&2 '#### Download log of the status code:'
			cat >&2 "$DOWNLOG"
		} >"$OUTPUT" 2>&1
		msgfailoutput "Status was $(cat "$STATUS")" "$OUTPUT"
	fi
	msggroup
}

mapkeynametokeyid() {
	while [ -n "$1" ]; do
		case "$1" in
			*Joe*|*Sixpack*|newarchive) echo '5A90D141DBAC8DAE';;
			*Rex*|*Expired*) echo '4BC0A39C27CE74F9';;
			*Marvin*|*Paranoid*) echo 'E8525D47528144E2';;
			*Sebastian*|*Subkey*) echo '5B6896415D44C43E';;
			oldarchive) echo 'FDD2DB85F68C85A3';;
			*) echo 'UNKNOWN KEY';;
		esac
		shift
	done
}
testaptkeys() {
	local OUTPUT="${TMPWORKINGDIRECTORY}/rootdir/tmp/aptkeylist.output"
	if ! aptkey list --with-colon 2>/dev/null | grep '^pub' | cut -d':' -f 5 > "$OUTPUT"; then
		echo -n > "$OUTPUT"
	fi
	testfileequal "$OUTPUT" "$(mapkeynametokeyid "$@")"
}

pause() {
	echo "STOPPED execution. Press enter to continue"
	local IGNORE
	read IGNORE
}

logcurrentarchivedirectory() {
	find "${TMPWORKINGDIRECTORY}/aptarchive/dists" -type f | while read line; do
		stat --format '%U:%G:%a:%n' "$line"
	done | sort > "${TMPWORKINGDIRECTORY}/rootdir/var/log/aptgetupdate.before.lst"
}
listcurrentlistsdirectory() {
	{
		find rootdir/var/lib/apt/lists -maxdepth 1 -type d | while read line; do
			stat --format '%U:%G:%a:%n' "$line"
		done
		find rootdir/var/lib/apt/lists -maxdepth 1 \! -type d | while read line; do
			stat --format '%U:%G:%a:%s:%y:%n' "$line"
		done
	} | sort
}
forallsupportedcompressors() {
	rm -f "${TMPWORKINGDIRECTORY}/rootdir/etc/apt/apt.conf.d/00force-compressor"
	for COMP in $(aptconfig dump 'APT::Compressor' --format '%f%n' | cut -d':' -f 5 | uniq); do
		if [ -z "$COMP" -o "$COMP" = '.' ]; then continue; fi
		"$@" "$COMP"
	done
}

breakfiles() {
	while [ -n "$1" ]; do
		mv -f "${1}" "${1}.bak"
		testsuccess dd if=/dev/zero of="${1}" bs="$(stat -c %s "${1}.bak")" count=1
		shift
	done
}
unbreakfiles() {
	while [ -n "$1" ]; do
		mv -f "${1}.bak" "${1}"
		shift
	done
}

### convenience hacks ###
mkdir() {
	# creating some directories by hand is a tedious task, so make it look simple
	local PARAMS="$*"
	if [ "$PARAMS" != "${PARAMS#*rootdir/var/lib/apt/lists}" ]; then
		# only the last directory created by mkdir is effected by the -m !
		command mkdir -m 755 -p "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt"
		command mkdir -m 755 -p "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists"
		command mkdir -m 700 -p "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists/partial"
		command mkdir -m 755 -p "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists/auxfiles"
		touch "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists/lock"
		if [ "$(id -u)" = '0' ]; then
			chown _apt:$(id -gn) "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists/partial"
			chown _apt:$(id -gn) "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists/auxfiles"
		fi
	else
		command mkdir "$@"
	fi
}

### The following tests are run by most test methods automatically to check
### general things about commands executed without writing the test every time.

aptautotest() {
	if [ $# -lt 3 ]; then return; fi
	local TESTCALL="$1"
	local CMD="$2"
	local FIRSTOPT="$3"
	shift 2
	for i in "$@"; do
		if ! expr match "$i" '^-' >/dev/null 2>&1; then
			FIRSTOPT="$i"
			break
		fi
	done
	shift
	local AUTOTEST="aptautotest_$(echo "${CMD##*/}_${FIRSTOPT}" | tr -d -c 'A-za-z0-9')"
	if command -v $AUTOTEST >/dev/null; then
		# save and restore the *.output files from other tests
		# as we might otherwise override them in these automatic tests
		rm -rf "${TMPWORKINGDIRECTORY}/rootdir/tmp-before"
		mv "${TMPWORKINGDIRECTORY}/rootdir/tmp" "${TMPWORKINGDIRECTORY}/rootdir/tmp-before"
		mkdir "${TMPWORKINGDIRECTORY}/rootdir/tmp"
		$AUTOTEST "$TESTCALL" "$@"
		rm -rf "${TMPWORKINGDIRECTORY}/rootdir/tmp-aptautotest"
		mv "${TMPWORKINGDIRECTORY}/rootdir/tmp" "${TMPWORKINGDIRECTORY}/rootdir/tmp-aptautotest"
		mv "${TMPWORKINGDIRECTORY}/rootdir/tmp-before" "${TMPWORKINGDIRECTORY}/rootdir/tmp"
	fi
}

aptautotest_aptget_update() {
	local TESTCALL="$1"
	while [ -n "$2" ]; do
		if [ "$2" = '--print-uris' ]; then return; fi # simulation mode
		shift
	done
	if ! test -d "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists"; then return; fi
	testfilestats "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt" '%U:%G:%a' '=' "${TEST_DEFAULT_USER}:${TEST_DEFAULT_GROUP}:755"
	testfilestats "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists" '%U:%G:%a' '=' "${TEST_DEFAULT_USER}:${TEST_DEFAULT_GROUP}:755"
	(
	cd /
	# all copied files are properly chmodded
	local backupIFS="$IFS"
	IFS="$(printf "\n\b")"
	find "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists" -type f ! -name 'lock' | while read file; do
		testfilestats "$file" '%U:%G:%a' '=' "${TEST_DEFAULT_USER}:${TEST_DEFAULT_GROUP}:644"
	done
	IFS="$backupIFS"
	if [ "$TESTCALL" = 'testsuccess' ]; then
		# failure cases can retain partial files and such
		testempty find "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/lists/partial" -mindepth 1 ! \( -name 'lock' -o -name '*.FAILED' \)
	fi
	if [ -s "${TMPWORKINGDIRECTORY}/rootdir/var/log/aptgetupdate.before.lst" ]; then
		testfileequal "${TMPWORKINGDIRECTORY}/rootdir/var/log/aptgetupdate.before.lst" \
			"$(find "${TMPWORKINGDIRECTORY}/aptarchive/dists" -type f | while read line; do stat --format '%U:%G:%a:%n' "$line"; done | sort)"
	fi
	)
}
aptautotest_apt_update() { aptautotest_aptget_update "$@"; }
aptautotest_aptcdrom_add() { aptautotest_aptget_update "$@"; }

testaptautotestnodpkgwarning() {
	local TESTCALL="$1"
	while [ -n "$2" ]; do
		if expr match "$2" '^-[a-z]*s' >/dev/null 2>&1; then return; fi # simulation mode
		if expr match "$2" '^-dy\?' >/dev/null 2>&1; then return; fi # download-only mode
		shift
	done
	testfailure grep '^dpkg: warning:.*\(ignor\|unknown\).*' "${TMPWORKINGDIRECTORY}/rootdir/tmp-before/${TESTCALL}.output"
}

aptautotest_aptget_install() { testaptautotestnodpkgwarning "$@"; }
aptautotest_aptget_remove() { testaptautotestnodpkgwarning "$@"; }
aptautotest_aptget_purge() { testaptautotestnodpkgwarning "$@"; }
aptautotest_apt_install() { testaptautotestnodpkgwarning "$@"; }
aptautotest_apt_remove() { testaptautotestnodpkgwarning "$@"; }
aptautotest_apt_purge() { testaptautotestnodpkgwarning "$@"; }

testaptmarknodefaultsections() {
	testfailure grep '^Auto-Installed: 0$' "${TMPWORKINGDIRECTORY}/rootdir/var/lib/apt/extended_states"
}
aptautotest_aptmark_auto() { testaptmarknodefaultsections "$@"; }
aptautotest_aptmark_manual() { testaptmarknodefaultsections "$@"; }
aptautotest_aptget_markauto() { testaptmarknodefaultsections "$@"; }
aptautotest_aptget_markmanual() { testaptmarknodefaultsections "$@"; }