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path: root/src/profile/proteanos.sh
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# ProteanOS architecture detection and feeds lists.
#
# Copyright (C) 2013-2016  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 $(opkg list-installed | cut -d " " -f 1)
	printf "enabled\n" >/etc/rc.policy
	rm -f "${SCRIPT}"
}
'

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

	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')"
	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_validate_archplat()
{
	local mirror="${1}"
	local arch="${2}"
	local plat="${3}"
	local suite="${4}"

	while read -r archplat; do
		case "${archplat}" in
			"${arch}/${plat}")
				return 0
				;;
		esac
	done <<-EOF
		$(${WGET} -q -O - "${mirror}/feeds/${suite}/Manifest" | sed \
			's|/[^/]*$||; /^all\//d; /\/all$/d;')
		EOF

	return 1
}

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

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

prof_proteanos_feeds()
{
	local mirror="${1}"
	local arch="${2}"
	local plat="${3}"
	local suite="${4}"
	local a=
	local p=
	local s=
	
	for a in "${arch}" 'all'; do
		for p in "${plat}" 'all'; do
			for s in 'base'; do
				printf 'src/gz proteanos_%s_%s_%s_%s_%s.gz ' \
					"${suite%/*}" "${suite#*/}" \
					"${a}" "${p}" "${s}"
				printf '%s/feeds/%s/%s/%s/%s\n' \
					"${mirror}" "${suite}" \
					"${a}" "${p}" "${s}"
			done
		done
	done

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

prof_proteanos_get_cert_url()
{
	local mirror="${1}"

	printf '%s/archive.cert' "${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}"

	if [ "x${name}" = 'xessential' ]; then
		if [ "x${value}" = 'xyes' ]; then
			return 0
		fi
	fi

	return 1
}

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

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

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

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

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

	printf '%s' "${prof_proteanos_install_service}" \
		>"${root}/etc/rc.d/S10install"
	chmod 0755 "${root}/etc/rc.d/S10install"
	printf 'proteanos\n' >"${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}"
	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}"
	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