installers/pc: New file, copied from miniprokit

1 files changed, 299 insertions, 0 deletions

diff --git a/installers/pc.sh b/installers/pc.sh
new file mode 100755
index 0000000..bd83df7
--- /dev/null
+++ b/installers/pc.sh
@@ -0,0 +1,299 @@
+#!/bin/sh
+
+set -u
+
+# This should be maintained in order of compatibility, i.e. each arch can also
+# run programs built for the arches before it.
+ARCHES='i686 amd64'
+
+# Description		CPU	Plat
+PLATS='
+Acer Aspire One AO751h	i686	ao751h
+Dell Dimension 2400	i686	dimension2400
+Lenovo ThinkPad X60/X60s/X60t	i686	x60
+'
+
+main()
+{
+	local opt=
+	local mirror=
+	local install_arch=
+	local host_arch=
+	local host_plat=
+	local mountpoint=
+
+	while getopts 'm:' opt; do
+		case ${opt} in
+			m) mirror="${OPTARG}";;
+			?)
+				print_usage >&2
+				exit 1
+				;;
+		esac
+	done
+	shift $(($OPTIND - 1))
+	if [ ${#} -ne 0 ]; then
+		print_usage >&2
+		exit 1
+	fi
+
+	install_arch="$(detect_arch)"
+	printf '\nSelect a platorm'
+	printf '\n================\n\n'
+	read host_arch host_plat <<-EOF
+		$(prompt_plat)
+		EOF
+	host_arch="${host_arch}-${install_arch#*-}"
+	check_arch_compat "${install_arch}" "${host_arch}"
+
+	printf '\nSelect a block device'
+	printf '\n=====================\n\n'
+	dev="$(prompt_block_dev)"
+
+	printf '\nMaking partition table and file system'
+	printf '\n======================================\n\n'
+	make_partition_and_fs "${dev}"
+
+	printf '\nInstalling base system'
+	printf '\n======================\n\n'
+
+	mountpoint="$(mount_fs "${dev}")"
+	"${0%installers/pc.sh}./miniprokit.sh" install \
+		-a "${host_arch}" -P "${host_plat}" \
+		${mirror:+-m} ${mirror} "${mountpoint}"
+	mirror="$(printf '%s\n' "${mirror}" | \
+		sed 's|^.*://||; s|^.*@||; s|/.*$||g;')"
+	printf '%s %s\n' "$(nslookup "${mirror}" | \
+		sed -n '/Address: /{ s/Address: //; p; q; };')" \
+		"${mirror}" >"${mountpoint}/etc/hosts"
+	"${0%installers/pc.sh}./miniprokit.sh" shell "${mountpoint}" \
+		<"${0%pc.sh}data/pc.sh"
+	rm "${mountpoint}/etc/hosts"
+	umount_fs "${mountpoint}"
+}
+
+print_usage()
+{
+	printf 'Usage: %s [-m <mirror>]\n' "${0}"
+}
+
+error()
+{
+	local status=${1}
+	local fmt="${2}"
+	shift 2
+
+	printf "Error: ${fmt}\n" "${@}" >&2
+
+	exit ${status}
+}
+
+_select()
+{
+	# Field width of the prompt numbers.
+	select_width=$(expr ${#} : '.*')
+
+	select_i=
+
+	while :; do
+		case "${select_i}" in
+			'')
+				select_i=0
+				for select_word in "${@}"; do
+					select_i=$(expr ${select_i} + 1)
+					printf "%${select_width}d) %s\\n" \
+						${select_i} "${select_word}" \
+						>&2
+				done
+				;;
+			*[!0-9]*)
+				printf 'Please enter a number in range.\n' >&2
+				;;
+			*)
+				if [ ${select_i} -gt 0 ] && \
+						[ ${select_i} -le ${#} ]; then
+					shift $(expr $select_i - 1)
+					select_result="${1}"
+					break
+				fi
+				printf 'Please enter a number in range.\n' >&2
+				;;
+		esac
+
+		# Prompt and read input.
+		printf '%s' "${PS3-#? }" >&2
+		read -r select_i || exit
+	done
+}
+
+detect_arch()
+{
+	local uname_m=
+	local uname_s=
+	local arch=
+
+	uname_m="$( (uname -m) 2>/dev/null)" || uname_m='?'
+	uname_s="$( (uname -s) 2>/dev/null)" || uname_s='?'
+	case "${uname_m}:${uname_s}" in
+		'i686:Linux') arch='i686-linux-glibc';;
+		'x86_64:Linux') arch='amd64-linux-glibc';;
+		'?:?') error 2 'Architecture unknown';;
+		*) error 2 'Architecture unsupported';;
+	esac
+
+	printf '%s\n' "${arch}"
+}
+
+prompt_plat()
+{
+	local desc=
+	local arch=
+	local plat=
+
+	set --
+	while IFS='	' read -r desc arch plat; do
+		[ "x${desc}" = 'x' ] && continue
+		set -- "${@}" "${desc}"
+	done <<-EOF
+		${PLATS}
+		EOF
+
+	printf 'Select a platform:\n' >&2
+	_select "${@}"
+
+	while IFS='	' read -r desc arch plat; do
+		if [ "x${desc}" = "x${select_result}" ]; then
+			printf '%s %s\n' "${arch}" "${plat}"
+			break
+		fi
+	done <<-EOF
+		${PLATS}
+		EOF
+}
+
+check_arch_compat()
+{
+	local install_arch="${1}"
+	local host_arch="${2}"
+	local arches=
+	local install_cpu=
+	local host_cpu=
+
+	if [ "x${install_arch}" = "x${host_arch}" ]; then
+		return 0
+	fi
+
+	arches="$(printf ' %s ' ${ARCHES})"
+	install_cpu="${install_arch%%-*}"
+	host_cpu="${host_arch%%-*}"
+	if [ "x${arches#* ${host_cpu} * ${install_cpu} }" = "x${arches}" ]
+	then
+		error 2 'Cannot install a system of architecture %s on %s %s' \
+			"${host_arch}" 'a system of architecture' \
+			"${install_arch}"
+	fi
+}
+
+pretty_print_size_dec()
+{
+	local size="${1}"
+
+	awk -v size=${size} 'BEGIN {
+		split("B KB MB GB TB", units, " ");
+		i=1;
+		while (size >= 1000) {
+			size /= 1000;
+			++i;
+		};
+		printf("%.2f %s\n", size, units[i]); }'
+}
+
+pretty_print_size_bin()
+{
+	local size="${1}"
+
+	awk -v size=${size} 'BEGIN {
+		split("B KiB MiB GiB TiB", units, " ");
+		i=1;
+		while (size >= 1024) {
+			size /= 1024;
+			++i;
+		};
+		printf("%.2f %s\n", size, units[i]); }'
+}
+
+prompt_block_dev()
+{
+	local dev=
+	local vendor=
+	local model=
+	local name=
+	local size=
+	local size_s=
+	local desc=
+	local devs=
+
+	set --
+	for dev in /sys/block/*; do
+		dev="${dev#/sys/block/}"
+		case "${dev}" in
+			loop*|sr*) continue;;
+		esac
+		if [ -e "/sys/block/${dev}/device/vendor" ]; then
+			vendor="$(cat "/sys/block/${dev}/device/vendor")"
+			model="$(cat "/sys/block/${dev}/device/model")"
+			name="${vendor} ${model}"
+		else
+			name="$(cat "/sys/block/${dev}/device/name")"
+		fi
+		size="$(cat "/sys/block/${dev}/size")"
+		size="$(expr ${size} \* 512)"
+		size_s="$(pretty_print_size_dec "${size}")"
+		size_s="${size_s} ($(pretty_print_size_bin "${size}"))"
+		desc="$(printf '%s (%s) - %s\n' "${name}" "${dev}" "${size_s}")"
+		set -- "${@}" "${desc}"
+		devs="$(printf '%s\n%s\t%s\n' "${devs}" "${desc}" "${dev}")"
+	done
+
+	printf 'Select a block device:\n' >&2
+	_select "${@}"
+
+	while IFS='	' read -r desc dev; do
+		if [ "x${desc}" = "x${select_result}" ]; then
+			printf '%s\n' "${dev}"
+		fi
+	done <<-EOF
+		${devs}
+		EOF
+}
+
+make_partition_and_fs()
+{
+	local dev="${1}"
+
+	dd if=/dev/zero of="/dev/${dev}" bs=512 count=1
+	printf 'n\np\n1\n\n\nt\n83\na\n1\nw\n' | fdisk "/dev/${dev}"
+	mke2fs -t ext4 "/dev/${dev}1"
+}
+
+mount_fs()
+{
+	local dev="${1}"
+	local mountpoint=
+
+	mountpoint="$(mktemp -d)"
+	mount "/dev/${dev}1" "${mountpoint}"
+	printf '%s\n' "${mountpoint}"
+}
+
+umount_fs()
+{
+	local mountpoint="${1}"
+
+	while ! umount "${mountpoint}"; do
+		sleep 1
+	done
+	rmdir "${mountpoint}"
+}
+
+main "${@}"