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path: root/src/profile/proteanos.sh
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# ProteanOS architecture detection and feeds lists.
#
# Copyright (C) 2013-2016, 2021  Patrick McDermott
#
# This file is part of the ProteanOS Development Kit.
#
# The ProteanOS Development Kit is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# The ProteanOS Development Kit is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the ProteanOS Development Kit.  If not, see
# <http://www.gnu.org/licenses/>.

_PROF_PROTEANOS_FSTAB_LINUX="\
proc   /proc    proc   defaults
sys    /sys     sysfs  defaults
/dev   /dev     none   bind
devpts /dev/pts devpts noexec,nosuid,gid=5,mode=0620
"
_PROF_PROTEANOS_INSTALL_SERVICE=\
'#!/bin/sh /etc/rc.common

start()
{
	log "Configuring packages"
	printf "disabled\n" >/etc/rc.policy
	opkg install $(opkg list-installed | busybox cut -d " " -f 1)
	printf "enabled\n" >/etc/rc.policy
	rm -f "${SCRIPT}"
}
'

_prof_proteanos_mirror=
_prof_proteanos_suite=
_prof_proteanos_platforms=''
_prof_proteanos_platforms_platform=''
_prof_proteanos_platforms_type=''
_prof_proteanos_platforms_sections=''

_prof_proteanos_platforms_field()
{
	local name="${1}"
	local value="${2}"
	shift 2

	case "${name}" in
		'Platform')
			_prof_proteanos_platforms_platform="${value}"
			;;
		'Type')
			_prof_proteanos_platforms_type="${value}"
			;;
		'Sections')
			_prof_proteanos_platforms_sections="${value}"
			;;
	esac
}

_prof_proteanos_platforms_paragraph()
{
	local platform=
	local archplat=

	platform="${_prof_proteanos_platforms_platform}"
	archplat="$(printf '%s' "${platform}" | tr -c '[a-z0-9/]' '_')"
	archplat="${archplat%/*}__${archplat#*/}"

	_prof_proteanos_platforms="${_prof_proteanos_platforms}${platform} "
	eval "_prof_proteanos_archplat_type_${archplat}=$(: \
		)\"\${_prof_proteanos_platforms_type}\""
	eval "_prof_proteanos_archplat_sections_${archplat}=$(: \
		)\"\${_prof_proteanos_platforms_sections}\""
}

prof_proteanos_detect_root()
{
	local root="${1}"
	shift 1

	if grep "^ID='proteanos'\$" "${root}/etc/os-release" >/dev/null 2>&1
	then
		return 0
	else
		return 1
	fi
}

prof_proteanos_normalize_suite()
{
	local suite="${1}"
	shift 1

	case "${suite}" in
		*/*) printf '%s\n' "${suite}";;
		*)   printf 'dev/%s\n' "${suite}";;
	esac

	return 0
}

prof_proteanos_detect_arch()
{
	local uname_m=
	local uname_s=
	local arch=

	uname_m="$( (uname -m) 2>/dev/null)" || uname_m='unknown'
	uname_s="$( (uname -s) 2>/dev/null)" || uname_s='unknown'

	case "${uname_m}:${uname_s}" in
		'x86_64:Linux')
			arch='amd64-linux-glibc'
			;;
		'i686:Linux')
			arch='i686-linux-glibc'
			;;
		*)
			arch=''
	esac

	printf '%s\n' "${arch}"
}

prof_proteanos_default_plat()
{
	printf 'dev\n'
}

prof_proteanos_select_mirror()
{
	local mirrors=
	local mirrors_count=
	local mirror_num=

	mirrors="$(${WGET} -q -O - -- \
		'http://files.proteanos.com/pub/proteanos-mirrors-http' \
		'ftp://files.proteanos.com/pub/proteanos-mirrors-ftp'
		)"
	mirrors_count=$(printf '%s\n' "${mirrors}" | wc -l)
	rand
	mirror_num=$((${rand_x} % ${mirrors_count} + 1))

	printf '%s\n' "${mirrors}" | sed -n "${mirror_num}p"
}

prof_proteanos_prepare_install()
{
	local mirror="${1}"
	local suite="${2}"
	shift 2

	_prof_proteanos_mirror="${mirror}"
	_prof_proteanos_suite="${suite}"
	parse_control - _prof_proteanos_platforms_field \
		_prof_proteanos_platforms_paragraph 0<<-EOF
		$(${WGET} -q -O - -- "${mirror}/feeds/${suite}/Platforms")
		EOF
}

prof_proteanos_installer_type()
{
	local arch="${1}"
	local plat="${2}"
	shift 2
	local arch_clean=
	local plat_clean=
	local archplat=
	local installer_type=

	arch_clean="$(printf '%s' "${arch}" | tr -c '[a-z0-9/]' '_')"
	plat_clean="$(printf '%s' "${plat}" | tr -c '[a-z0-9/]' '_')"
	archplat="${arch_clean}__${plat_clean}"
	eval "installer_type=\"\${_prof_proteanos_archplat_type_${archplat}}\""

	printf '%s' "${installer_type}"
}

prof_proteanos_validate_archplat()
{
	local arch="${1}"
	local plat="${2}"
	shift 2
	local archplat=

	case " ${_prof_proteanos_platforms} " in
		*" ${arch}/${plat} "*)
			return 0
			;;
	esac

	return 1
}

prof_proteanos_opkg_state_dir()
{
	printf '/var/lib/opkg'
	return 0
}

prof_proteanos_opkg_conf_file()
{
	printf '/etc/opkg.conf'
	return 0
}

prof_proteanos_feeds()
{
	local arch="${1}"
	local plat="${2}"
	shift 2
	local arch_clean=
	local plat_clean=
	local archplat=
	local sects=
	local manifest=
	local a=
	local p=
	local s=

	arch_clean="$(printf '%s' "${arch}" | tr -c '[a-z0-9/]' '_')"
	plat_clean="$(printf '%s' "${plat}" | tr -c '[a-z0-9/]' '_')"
	archplat="${arch_clean}__${plat_clean}"
	eval "sects=\"\${_prof_proteanos_archplat_sections_${archplat}}\""

	manifest="$(${WGET} -q -O - -- "${_prof_proteanos_mirror}/feeds/$(: \
		)${_prof_proteanos_suite}/Manifest")"

	for a in "${arch}" 'all'; do
		for p in "${plat}" 'all'; do
			for s in ${sects}; do
				case "${LF}${manifest}${LF}" in
					*"${LF}${a}/${p}/${s}${LF}"*) ;;
					*) continue;;
				esac
				printf 'src/gz proteanos_%s_%s_%s_%s_%s.gz ' \
					"${_prof_proteanos_suite%/*}" \
					"${_prof_proteanos_suite#*/}" \
					"${a}" "${p}" "${s}"
				printf '%s/feeds/%s/%s/%s/%s\n' \
					"${_prof_proteanos_mirror}" \
					"${_prof_proteanos_suite}" \
					"${a}" "${p}" "${s}"
			done
		done
	done

	for s in 'base' 'src'; do
		printf 'src/gz proteanos_%s_%s_%s_%s_%s.gz ' \
			"${_prof_proteanos_suite%/*}" \
			"${_prof_proteanos_suite#*/}" \
			'src' 'all' "${s}"
		printf '%s/feeds/%s/%s/%s/%s\n' \
			"${_prof_proteanos_mirror}" \
			"${_prof_proteanos_suite}" \
			'src' 'all' "${s}"
	done
}

prof_proteanos_get_cert_url()
{
	printf '%s/archive.cert' "${_prof_proteanos_mirror}"
	return 0
}

prof_proteanos_get_root_key()
{
	cat <<-EOF
		untrusted comment: ProteanOS archive root key
		RWSG2r6ZwINj8pcScRd4nc9HVZ9zjP5oajMPfTm+dIk67btIsCZaf3SN
		EOF
}

prof_proteanos_dep_fields()
{
	printf 'Depends Pre-Depends'
}

prof_proteanos_include_pkg()
{
	local name="${1}"
	local value="${2}"
	shift 2

	if [ "x${name}" = 'xpackage' ]; then
		case "${value}" in
			'base-files' | 'config-base')
				return 0;;
		esac
	fi

	return 1
}

prof_proteanos_get_fstab()
{
	local arch="${1}"
	local plat="${2}"
	shift 2

	case "${arch}" in
		*-linux-*)
			printf '%s\n' "${_PROF_PROTEANOS_FSTAB_LINUX}"
			;;
	esac
}

prof_proteanos_file_systems_mounted()
{
	local root="${1}"
	local arch="${2}"
	local plat="${3}"
	shift 3

	[ -e "${root}/dev/null" ]
}

prof_proteanos_bind_mount()
{
	local arch="${1}"
	local plat="${2}"
	local olddir="${3}"
	local newdir="${4}"
	shift 4

	case "${arch}" in
		*-linux-*)
			mount -o bind -- "${olddir}" "${newdir}"
			;;
	esac
}

prof_proteanos_bind_umount()
{
	local arch="${1}"
	local plat="${2}"
	local olddir="${3}"
	local newdir="${4}"
	shift 4

	case "${arch}" in
		*-linux-*)
			umount -- "${newdir}"
			;;
	esac
}

prof_proteanos_configure_system_native()
{
	local root="${1}"
	local arch="${2}"
	local plat="${3}"
	shift 3

	printf 'disabled\n' >"${root}/etc/rc.policy"
	opkg_install_all "${root}"
	if [ "x${plat}" = 'xdev' ]; then
		[ -r /etc/resolv.conf ] && cp -- /etc/resolv.conf "${root}/etc"
		[ -r /etc/hostname ] && cp -- /etc/hostname "${root}/etc"
	else
		printf 'enabled\n' >"${root}/etc/rc.policy"
		printf 'proteanos\n' >"${root}/etc/hostname"
	fi
	[ -e "${root}/etc/passwd" ] || printf \
		'root::0:0:root:/root:/bin/sh\n' >"${root}/etc/passwd"
	[ -e "${root}/etc/group" ] || printf \
		'root:x:0:\n' >"${root}/etc/group"
}

prof_proteanos_configure_system_foreign()
{
	local root="${1}"
	local arch="${2}"
	local plat="${3}"
	shift 3

	printf '%s' "${_PROF_PROTEANOS_INSTALL_SERVICE}" \
		>"${root}/etc/rc.d/S00install"
	chmod -- 0755 "${root}/etc/rc.d/S00install"
	printf 'proteanos\n' >"${root}/etc/hostname"
	[ -e "${root}/etc/passwd" ] || printf \
		'root::0:0:root:/root:/bin/sh\n' >"${root}/etc/passwd"
	[ -e "${root}/etc/group" ] || printf \
		'root:x:0:\n' >"${root}/etc/group"
}

prof_proteanos_find_kernel()
{
	local root="${1}"
	local arch="${2}"
	local plat="${3}"
	shift 3
	local kernel=

	case "${arch}" in
		*-linux-*)
			for kernel in vmlinuz; do
				if [ -e "${root}/boot/${kernel}" ]; then
					printf '%s' "/boot/${kernel}"
					return 0
				fi
			done
			;;
	esac
	return 1
}

prof_proteanos_make_initramfs()
{
	local arch="${1}"
	local plat="${2}"
	shift 2
	local init_created=

	case "${arch}" in
		*-linux-*)
			if ! [ -e init ]; then
				ln -s /sbin/init init
				init_created=true
			else
				init_created=false
			fi
			find . -xdev -a \! -path './boot/*' -a \
				\! -path './prokit/*' | \
				${CPIO} -o -H newc | \
				${XZ} -c --check=crc32 --x86 --lzma2
			if ${init_created}; then
				rm -f init
			fi
			;;
	esac
	return 1
}

prof_proteanos_register()
{
	register_profile 'proteanos'
}
__init prof_proteanos_register