# vim: set ft=sh :
export USE_COMPONENTS="$(for c in $USE_COMPONENTS; do case "$c" in main) echo maintained ;; *) echo "$c" ;; esac ; done)"
LIBC="libc6"

# NEW:
download_ucs_indices () {
	local m c a
	local m1="${MIRRORS%% *}"
	local comp="${USE_COMPONENTS}"
	progress 0 100 DOWNMAINPKGS "Downloading Packages file"
	progress_next 100

	if [ -z "$comp" ]; then comp=maintained; fi
	COMPONENTS="$(echo $comp | tr '|' ' ')"

	export COMPONENTS
	for m in $MIRRORS; do
	    for c in $COMPONENTS; do
		for a in $ARCH all; do
		    local path="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/$a/Packages"
		    local pkgdest="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "$a" "$m" "$path")"
		    if [ -x /bin/gunzip ] && get "$m/${path}.gz" "${pkgdest}.gz"; then
			    rm -f "$pkgdest"
			    gunzip "$pkgdest.gz"
		    elif get "$m/$path" "$pkgdest"; then
			    true
		    fi
		done
	    done
	done
	progress 100 100 DOWNMAINPKGS "Downloading Packages file"
}
# NEW:
download_ucs () {
	local p c m a
	local m1="${MIRRORS%% *}"

	:>$TARGET/debootstrap/debpaths
	for p in "$@"; do
	    for c in $COMPONENTS; do
		local details=""
		for m in $MIRRORS; do
		    for a in $ARCH all; do
			local path="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/$a/Packages"
			local pkgdest="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "$a" "$m" "$path")"
			if [ ! -e "$pkgdest" ]; then continue; fi
			details="$($PKGDETAILS PKGS "$m" "$pkgdest" "$p")"
			if [ "$details" = "$p -" ]; then
				details=""
				continue
			fi
			size="${details##* }"; details="${details% *}"
			md5="${details##* }"; details="${details% *}"
			local debdest="$($DLDEST deb $details)"
			if get "$m/${SUITE#ucs-}/$c/${details##* }" "$TARGET/$debdest" "$md5" "$size"; then
				echo >>$TARGET/debootstrap/debpaths "$p $debdest"
				details="done"
				break 2
			fi
		    done
		done
		if [ "$details" != "" ]; then
			break
		fi
	    done
	    if [ "$details" != "done" ]; then
		error 1 COULDNTDL "Couldn't download %s" "$p"
	    fi
	done
}

# OVERRIDE: functions
#mirror_style ucs
DOWNLOAD_INDICES=download_ucs_indices
DOWNLOAD_DEBS=download_ucs
export DOWNLOAD_INDICES
export DOWNLOAD_DEBS

default_mirror http://updates.software-univention.de
download_style apt
finddebs_style from-indices
variants - buildd fakechroot minbase scratchbox
#keyring /usr/share/keyrings/univention-archive-key-ucs-3x.gpg

if doing_variant fakechroot; then
	test "$FAKECHROOT" = "true" || error 1 FAKECHROOTREQ "This variant requires fakechroot environment to be started"
fi

# OVERRIDE: functions
setup_apt_sources () {
	local m c a
	mkdir -p "$TARGET/etc/apt"
	for m in "$@"; do
		for c in $COMPONENTS; do
			for a in $ARCH all; do
				local path="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/$a/Packages"
				local pkgdest="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "$a" "$m" "$path")"
				if [ -e "$pkgdest" ]; then echo "deb $m/${SUITE#ucs-}/$c ${SUITE#ucs-}-0/$a/"; fi
			done
		done
	done > "$TARGET/etc/apt/sources.list"
}

# OVERRIDE: functions
setup_available () {
	local ml c a
	m1="${MIRRORS%% *}"

	for c in $COMPONENTS; do
		for a in $ARCH all; do
			local path="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/$a/Packages"
			local pkgdest="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "$a" "$m1" "$path")"
			# XXX: What if a package is in more than one component?
			# -- cjwatson 2009-07-29
			"$PKGDETAILS" STANZAS "$pkgdest" "$@"
		done
	done >"$TARGET/var/lib/dpkg/available"

	for pkg; do
		echo "$pkg install"
	done | in_target dpkg --set-selections
}

# OVERRIDE: functions
get_debs () {
	local field="$1"
	shift
	local m1 c a
	for m1 in $MIRRORS; do
		for c in $COMPONENTS; do
			for a in $ARCH all; do
				local path="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/$a/Packages"
				local pkgdest="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "$a" "$m1" "$path")"
				echo $("$PKGDETAILS" FIELD "$field" "$m1" "$pkgdest" "$@" | sed 's/ .*//')
			done
		done
	done
}

# COPY: sid
work_out_debs () {
	required="$(get_debs Priority: required)"

	if doing_variant - || doing_variant fakechroot; then
		#required="$required $(get_debs Priority: important)"
		#  ^^ should be getting debconf here somehow maybe
		base="$(get_debs Priority: important)"
	elif doing_variant buildd || doing_variant scratchbox; then
		base="apt $(get_debs Build-Essential: yes)"
	elif doing_variant minbase; then
		base="apt"
	fi

	if doing_variant fakechroot; then
		# ldd.fake needs binutils
		required="$required binutils"
	fi
}

# COPY: sid
first_stage_install () {
	extract $required

	mkdir -p "$TARGET/var/lib/dpkg"
	: >"$TARGET/var/lib/dpkg/status"
	: >"$TARGET/var/lib/dpkg/available"

	setup_etc
	if [ ! -e "$TARGET/etc/fstab" ]; then
		echo '# UNCONFIGURED FSTAB FOR BASE SYSTEM' > "$TARGET/etc/fstab"
		chown 0:0 "$TARGET/etc/fstab"; chmod 644 "$TARGET/etc/fstab"
	fi

	if doing_variant fakechroot; then
		setup_devices_fakechroot
	else
		setup_devices
	fi

	x_feign_install () {
		local pkg="$1"
		local deb="$(debfor $pkg)"
		local ver="$(extract_deb_field "$TARGET/$deb" Version)"

		mkdir -p "$TARGET/var/lib/dpkg/info"

		echo \
"Package: $pkg
Version: $ver
Status: install ok installed" >> "$TARGET/var/lib/dpkg/status"

		touch "$TARGET/var/lib/dpkg/info/${pkg}.list"
	}

	x_feign_install dpkg
}

# OVERRIDE: functions
resolve_deps () {
	local m1="${MIRRORS%% *}"

	# XXX: I can't think how to deal well with dependency resolution and
	#      lots of Packages files. -- aj 2005/06/12

	local c="${COMPONENTS%% *}"
	local path="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/$ARCH/Packages"
	local pkgdest="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "$ARCH" "$m1" "$path")"
	local path2="${SUITE#ucs-}/$c/${SUITE#ucs-}-0/all/Packages"
	local pkgdest2="$TARGET/$($DLDEST pkg "${SUITE#ucs-}" "$c/${SUITE#ucs-}-0" "all" "$m1" "$path2")"

	local PKGS="$*"
	local ALLPKGS="$PKGS"
	local ALLPKGS2=""
	while [ "$PKGS" != "" ]; do
		PKGS="$("$PKGDETAILS" GETDEPS "$pkgdest" $PKGS) $("$PKGDETAILS" GETDEPS "$pkgdest2" $PKGS)"
		PKGS=$( ("$PKGDETAILS" PKGS REAL "$pkgdest" $PKGS;"$PKGDETAILS" PKGS REAL "$pkgdest2" $PKGS) | sed -n 's/ .*REAL.*$//p')
		ALLPKGS2=$(echo "$PKGS $ALLPKGS" | tr ' ' '\n' | sort -u)
		PKGS=$(without "$ALLPKGS2" "$ALLPKGS")
		ALLPKGS="$ALLPKGS2"
	done
	echo $ALLPKGS
}

# COPY: sid
second_stage_install () {
	x_core_install () {
		smallyes '' | in_target dpkg --force-depends --install $(debfor "$@")
	}

	p () {
		baseprog="$(($baseprog + ${1:-1}))"
	}

	if doing_variant fakechroot; then
		setup_proc_fakechroot
	elif doing_variant scratchbox; then
		true
	else
		setup_proc
		in_target /sbin/ldconfig
	fi

	DEBIAN_FRONTEND=noninteractive
	DEBCONF_NONINTERACTIVE_SEEN=true
	export DEBIAN_FRONTEND DEBCONF_NONINTERACTIVE_SEEN

	baseprog=0
	bases=7

	p; progress $baseprog $bases INSTCORE "Installing core packages" #1
	info INSTCORE "Installing core packages..."

	p; progress $baseprog $bases INSTCORE "Installing core packages" #2
	ln -sf mawk "$TARGET/usr/bin/awk"
	x_core_install base-files base-passwd
	p; progress $baseprog $bases INSTCORE "Installing core packages" #3
	x_core_install dpkg

	if [ ! -e "$TARGET/etc/localtime" ]; then
		ln -sf /usr/share/zoneinfo/UTC "$TARGET/etc/localtime"
	fi

	if doing_variant fakechroot; then
		install_fakechroot_tools
	fi

	p; progress $baseprog $bases INSTCORE "Installing core packages" #4
	x_core_install $LIBC

	p; progress $baseprog $bases INSTCORE "Installing core packages" #5
	x_core_install perl-base

	p; progress $baseprog $bases INSTCORE "Installing core packages" #6
	rm "$TARGET/usr/bin/awk"
	x_core_install mawk

	p; progress $baseprog $bases INSTCORE "Installing core packages" #7
	if doing_variant -; then
		x_core_install debconf
	fi

	baseprog=0
	bases=$(set -- $required; echo $#)

	info UNPACKREQ "Unpacking required packages..."

	exec 7>&1

	smallyes '' |
		(repeatn 5 in_target_failmsg UNPACK_REQ_FAIL_FIVE "Failure while unpacking required packages.  This will be attempted up to five times." "" \
		dpkg --status-fd 8 --force-depends --unpack $(debfor $required) 8>&1 1>&7 || echo EXITCODE $?) |
		dpkg_progress $baseprog $bases UNPACKREQ "Unpacking required packages" UNPACKING

	info CONFREQ "Configuring required packages..."

	mv "$TARGET/sbin/start-stop-daemon" "$TARGET/sbin/start-stop-daemon.REAL"
	echo \
"#!/bin/sh
echo
echo \"Warning: Fake start-stop-daemon called, doing nothing\"" > "$TARGET/sbin/start-stop-daemon"
	chmod 755 "$TARGET/sbin/start-stop-daemon"

	setup_dselect_method apt

	smallyes '' |
		(in_target_failmsg CONF_REQ_FAIL "Failure while configuring required packages." "" \
		dpkg --status-fd 8 --configure --pending --force-configure-any --force-depends 8>&1 1>&7 || echo EXITCODE $?) |
		dpkg_progress $baseprog $bases CONFREQ "Configuring required packages" CONFIGURING

	baseprog=0
	bases="$(set -- $base; echo $#)"

	info UNPACKBASE "Unpacking the base system..."

	setup_available $required $base
	done_predeps=
	while predep=$(get_next_predep); do
		# We have to resolve dependencies of pre-dependencies manually because
		# dpkg --predep-package doesn't handle this.
		predep=$(without "$(without "$(resolve_deps $predep)" "$required")" "$done_predeps")
		# XXX: progress is tricky due to how dpkg_progress works
		# -- cjwatson 2009-07-29
		p; smallyes '' |
		in_target dpkg --force-overwrite --force-confold --skip-same-version --install $(debfor $predep)
		base=$(without "$base" "$predep")
		done_predeps="$done_predeps $predep"
	done

	smallyes '' |
		(repeatn 5 in_target_failmsg INST_BASE_FAIL_FIVE "Failure while installing base packages.  This will be re-attempted up to five times." "" \
		dpkg --status-fd 8 --force-overwrite --force-confold --skip-same-version --unpack $(debfor $base) 8>&1 1>&7 || echo EXITCODE $?) |
		dpkg_progress $baseprog $bases UNPACKBASE "Unpacking base system" UNPACKING

	info CONFBASE "Configuring the base system..."

	smallyes '' |
		(repeatn 5 in_target_failmsg CONF_BASE_FAIL_FIVE "Failure while configuring base packages.  This will be re-attempted up to five times." "" \
		dpkg --status-fd 8 --force-confold --skip-same-version --configure -a 8>&1 1>&7 || echo EXITCODE $?) |
		dpkg_progress $baseprog $bases CONFBASE "Configuring base system" CONFIGURING

	mv "$TARGET/sbin/start-stop-daemon.REAL" "$TARGET/sbin/start-stop-daemon"

	progress $bases $bases CONFBASE "Configuring base system"
	info BASESUCCESS "Base system installed successfully."
}