prepare release

* If we are running systemd use nspawn instead of our own chroot setup
* Use pacstrap to setup our chroot environment
* Make sure the common trap is still called
* Bind resolve.conf, timezone and lcoaltime from the host if nspawn is not used
* Run ldconfig within the chroot

Makefile

@@ -1,4 +1,4 @@
-V=20120720
+V=20121004
 
 PREFIX = /usr/local
 

archbuild.in

@@ -61,13 +61,13 @@ if ${clean_first} || [[ ! -d "${chroots}/${repo}-${arch}" ]]; then
 		-C "@pkgdatadir@/pacman-${repo}.conf" \
 		-M "@pkgdatadir@/makepkg-${arch}.conf" \
 		"${chroots}/${repo}-${arch}/root" \
-		"${base_packages[@]}"
+		"${base_packages[@]}" || abort
 else
 	setarch ${arch} mkarchroot \
 		-u \
 		-C "@pkgdatadir@/pacman-${repo}.conf" \
 		-M "@pkgdatadir@/makepkg-${arch}.conf" \
-		"${chroots}/${repo}-${arch}/root"
+		"${chroots}/${repo}-${arch}/root" || abort
 fi
 
 msg "Building in chroot for [${repo}] (${arch})..."

lib/common.sh

@@ -62,8 +62,6 @@ setup_workdir() {
 }
 
 cleanup() {
-	trap - EXIT INT QUIT TERM HUP
-
 	[[ -n $WORKDIR ]] && rm -rf "$WORKDIR"
 	[[ $1 ]] && exit $1
 }
@@ -73,13 +71,23 @@ abort() {
 	cleanup 0
 }
 
+trap_abort() {
+	trap - EXIT INT QUIT TERM HUP
+	abort
+}
+
+trap_exit() {
+	trap - EXIT INT QUIT TERM HUP
+	cleanup 0
+}
+
 die() {
 	error "$*"
 	cleanup 1
 }
 
-trap abort INT QUIT TERM HUP
+trap 'trap_abort' INT QUIT TERM HUP
-trap 'cleanup 0' EXIT
+trap 'trap_exit' EXIT
 
 ##
 #  usage : in_array( $needle, $haystack )

makechrootpkg.in

@@ -25,6 +25,7 @@ passeddir=
 default_copy=$USER
 [[ -n $SUDO_USER ]] && default_copy=$SUDO_USER
 [[ -z $default_copy || $default_copy = root ]] && default_copy=copy
+src_owner=${SUDO_USER:-$USER}
 
 usage() {
 	echo "usage ${0##*/} [options] -r <chrootdir> [--] [makepkg args]"
@@ -274,7 +275,7 @@ if $run_namcap; then
 	pacman -S --needed --noconfirm namcap
 	for pkgfile in /build/PKGBUILD /pkgdest/*.pkg.tar.?z; do
 		echo "Checking \${pkgfile##*/}"
-		namcap "\$pkgfile" 2>&1 | tee "/build/\${pkgfile##*/}-namcap.log"
+		sudo -u nobody namcap "\$pkgfile" 2>&1 | tee "/build/\${pkgfile##*/}-namcap.log"
 	done
 fi
 
@@ -292,10 +293,12 @@ if mkarchroot -r "/chrootbuild" "$copydir"; then
 			popd >/dev/null
 		fi
 
+		chown "$src_owner" "$pkgfile"
 		mv "$pkgfile" "$PKGDEST"
 	done
 
 	for l in "$copydir"/build/*-{build,check,namcap,package,package_*}.log; do
+		chown "$src_owner" "$l"
 		[[ -f $l ]] && mv "$l" .
 	done
 else
@@ -304,6 +307,7 @@ else
 fi
 
 for f in "$copydir"/srcdest/*; do
+	chown "$src_owner" "$f"
 	mv "$f" "$SRCDEST"
 done
 

mkarchroot.in

@@ -78,15 +78,32 @@ if echo "${host_mirror}" | grep -q 'file://'; then
 fi
 
 # {{{ functions
+bind_mount() {
+	local mode="${2:-rw}"
+	local target="${working_dir}${1}"
+
+	if [[ ! -e "$target" ]]; then
+		if [[ -d "$1" ]]; then
+			install -d "$target"
+		else
+			install -D /dev/null "$target"
+		fi
+	fi
+
+	mount -o bind "$1" "$target"
+	mount -o remount,${mode},bind "$target"
+	mount --make-slave "$target"
+}
+
 chroot_mount() {
-	[[ -e "${working_dir}/sys" ]] || mkdir "${working_dir}/sys"
+	trap 'trap_chroot_umount' EXIT INT QUIT TERM HUP
-	mount -o bind /sys "${working_dir}/sys"
+
-	mount -o remount,ro,bind "${working_dir}/sys"
+	if (( ! have_nspawn )); then
+		bind_mount /sys ro
 
 		[[ -e "${working_dir}/proc" ]] || mkdir "${working_dir}/proc"
 		mount -t proc proc -o nosuid,noexec,nodev "${working_dir}/proc"
-	mount -o bind /proc/sys "${working_dir}/proc/sys"
+		bind_mount /proc/sys ro
-	mount -o remount,ro,bind "${working_dir}/proc/sys"
 
 		[[ -e "${working_dir}/dev" ]] || mkdir "${working_dir}/dev"
 		mount -t tmpfs dev "${working_dir}/dev" -o mode=0755,size=10M,nosuid,strictatime
@@ -109,35 +126,25 @@ chroot_mount() {
 		[[ -e "${working_dir}/dev/shm" ]] || mkdir "${working_dir}/dev/shm"
 		mount -t tmpfs shm "${working_dir}/dev/shm" -o nodev,nosuid,size=128M
 
-	[[ -e "${working_dir}/dev/pts" ]] || mkdir "${working_dir}/dev/pts"
+		bind_mount /dev/pts
-	mount -o bind /dev/pts "${working_dir}/dev/pts"
 
 		[[ -e "${working_dir}/run" ]] || mkdir "${working_dir}/run"
 		mount -t tmpfs tmpfs "${working_dir}/run" -o mode=0755,nodev,nosuid,strictatime,size=64M
 
-	if [[ -n $host_mirror_path ]]; then
+		for host_config in resolv.conf timezone localtime; do
-		[[ -e "${working_dir}/${host_mirror_path}" ]] || mkdir -p "${working_dir}/${host_mirror_path}"
+			bind_mount /etc/$host_config ro
-		mount -o bind "${host_mirror_path}" "${working_dir}/${host_mirror_path}"
-		mount -o remount,ro,bind "${working_dir}/${host_mirror_path}"
-	fi
-
-	local cache_dir_first=true
-	for cache_dir in ${cache_dirs[@]}; do
-		[[ -e $cache_dir ]] || mkdir -p "${cache_dir}"
-		[[ -e "${working_dir}/${cache_dir}" ]] || mkdir -p "${working_dir}/${cache_dir}"
-		mount -o bind "${cache_dir}" "${working_dir}/${cache_dir}"
-		if ! ${cache_dir_first}; then
-			mount -o remount,ro,bind "${working_dir}/${cache_dir}"
-		else
-			cache_dir_first=false
-		fi
 		done
+	fi
 
-	trap 'chroot_umount' EXIT INT QUIT TERM HUP
+	[[ -n $host_mirror_path ]] && bind_mount "$host_mirror_path" ro
+
+	bind_mount "${cache_dirs[0]}"
+	for cache_dir in ${cache_dirs[@]:1}; do
+		bind_mount "$cache_dir" ro
+	done
 }
 
 copy_hostconf () {
-	cp /etc/resolv.conf "${working_dir}/etc/resolv.conf"
 	cp -a /etc/pacman.d/gnupg "${working_dir}/etc/pacman.d"
 	echo "Server = ${host_mirror}" > ${working_dir}/etc/pacman.d/mirrorlist
 
@@ -152,8 +159,18 @@ copy_hostconf () {
 	sed -r "s|^#?\\s*CacheDir.+|CacheDir = $(echo -n ${cache_dirs[@]})|g" -i ${working_dir}/etc/pacman.conf
 }
 
-chroot_umount () {
+trap_chroot_umount () {
-	trap - EXIT INT QUIT TERM HUP
+	trap 'trap_exit' EXIT INT QUIT TERM HUP
+
+	for cache_dir in ${cache_dirs[@]}; do
+		umount "${working_dir}/${cache_dir}"
+	done
+	[[ -n $host_mirror_path ]] && umount "${working_dir}/${host_mirror_path}"
+
+	if (( ! have_nspawn )); then
+		for host_config in resolv.conf timezone localtime; do
+			umount "${working_dir}/etc/${host_config}"
+		done
 		umount "${working_dir}/proc/sys"
 		umount "${working_dir}/proc"
 		umount "${working_dir}/sys"
@@ -161,10 +178,7 @@ chroot_umount () {
 		umount "${working_dir}/dev/shm"
 		umount "${working_dir}/dev"
 		umount "${working_dir}/run"
-	for cache_dir in ${cache_dirs[@]}; do
+	fi
-		umount "${working_dir}/${cache_dir}"
-	done
-	[[ -n $host_mirror_path ]] && umount "${working_dir}/${host_mirror_path}"
 }
 
 chroot_lock () {
@@ -180,8 +194,24 @@ chroot_lock () {
 		stat_done
 	fi
 }
+
+chroot_run() {
+	local dir=$1
+	shift
+	if (( have_nspawn)); then
+		eval systemd-nspawn -D "${dir}" -- ${@} 2>/dev/null
+	else
+		eval unshare -mui -- chroot "${dir}" ${@}
+	fi
+}
+
 # }}}
 
+# use systemd-nspawn if we have it available and systemd is running
+if type -P systemd-nspawn >/dev/null && mountpoint -q /sys/fs/cgroup/systemd; then
+	have_nspawn=1
+fi
+
 umask 0022
 if [[ -n $RUN ]]; then
 	# run chroot {{{
@@ -196,7 +226,7 @@ if [[ -n $RUN ]]; then
 	chroot_mount
 	copy_hostconf
 
-	eval unshare -mui -- chroot "${working_dir}" ${RUN}
+	chroot_run "${working_dir}" ${RUN}
 
 	# }}}
 else
@@ -209,37 +239,31 @@ else
 		chmod 0755 "${working_dir}"
 	fi
 
-	mkdir -p "${working_dir}/var/lib/pacman/sync"
-	mkdir -p "${working_dir}/etc/"
-
 	chroot_lock
 	chroot_mount
 
-	pacargs="--noconfirm --root=${working_dir} ${cache_dirs[@]/#/--cachedir=}"
+	pacargs="${cache_dirs[@]/#/--cachedir=}"
 	if [[ -n $pac_conf ]]; then
 		pacargs="$pacargs --config=${pac_conf}"
 	fi
 
 	if (( $# != 0 )); then
-		op='-Sy'
 		if [[ $FORCE = 'y' ]]; then
-			op="${op}f"
+			pacargs="$pacargs --force"
 		fi
-		if ! pacman ${op} ${pacargs} $@; then
+		if ! pacstrap -GMcd "${working_dir}" ${pacargs} $@; then
 			die 'Failed to install all packages'
 		fi
 	fi
 
 	if [[ -d "${working_dir}/lib/modules" ]]; then
-		ldconfig -r "${working_dir}"
+		chroot_run "${working_dir}" ldconfig
 	fi
 
 	if [[ -e "${working_dir}/etc/locale.gen" ]]; then
 		sed -i 's@^#\(en_US\|de_DE\)\(\.UTF-8\)@\1\2@' "${working_dir}/etc/locale.gen"
-		chroot "${working_dir}" /usr/sbin/locale-gen
+		chroot_run "${working_dir}" locale-gen
 	fi
-	echo 'UTC' > "${working_dir}/etc/timezone"
-	ln -s /usr/share/zoneinfo/UTC "${working_dir}/etc/localtime"
 	echo 'LANG=C' > "${working_dir}/etc/locale.conf"
 
 	copy_hostconf