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#!/bin/sh
#-
# Copyright (c) 2013 Juan Romero Pardines.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#-
readonly PROGNAME=$(basename $0)
readonly ARCH=$(uname -m)
readonly PKGBASE="base-system"
trap 'printf "\nInterrupted! exiting...\n"; exit $?' INT TERM HUP
info_msg() {
printf "\033[1m$@\n\033[m"
}
die() {
echo "FATAL: $@"
[ -d "$rootfs" ] && rm -rf $rootfs
exit 1
}
usage() {
echo "Usage: $PROGNAME [-a raspberrypi]"
}
run_cmd() {
info_msg "Running $@ ..."
if [ -n "${_ARCH}" ]; then
eval XBPS_TARGET_ARCH=${_ARCH} "$@" >/dev/null 2>&1
else
eval "$@" >/dev/null 2>&1
fi
[ $? -ne 0 ] && die "Failed to run $@"
}
register_binfmt() {
if [ "$ARCH" = "${_ARCH}" ]; then
return 0
fi
case "${_ARCH}" in
armv6l)
echo ':arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-arm-static:' > /proc/sys/fs/binfmt_misc/register
cp -f $(which qemu-arm-static) $rootfs/usr/bin || die "failed to copy qemu-arm-static to the rootfs"
;;
*)
die "Unknown target architecture!"
;;
esac
}
#
# main()
#
while getopts "a:h" opt; do
case $opt in
a) TARGET_ARCH="$OPTARG";;
h) usage; exit 0;;
esac
done
shift $(($OPTIND - 1))
if [ "$(id -u)" -ne 0 ]; then
die "need root perms to continue, exiting."
fi
#
# Check for required binaries.
#
for f in systemd-nspawn xbps-install xbps-reconfigure xbps-query; do
if ! $f --version >/dev/null 2>&1; then
die "$f binary is missing in your system, exiting."
fi
done
#
# Sanitize target arch.
#
case "$TARGET_ARCH" in
raspberrypi) _ARCH=armv6l; QEMU_BIN=qemu-arm-static;;
*) ;;
esac
#
# Check if package base-system is available.
#
run_cmd "xbps-query -R -ppkgver $PKGBASE"
rootfs=$(mktemp -d || die "FATAL: failed to create tempdir, exiting...")
chmod 755 $rootfs
#
# Install base-system to the rootfs directory.
#
run_cmd "xbps-install -S -r $rootfs -y $PKGBASE"
#
# Reconfigure packages for target architecture: must be reconfigured
# thru the qemu user mode binary.
#
if [ -n "$TARGET_ARCH" ]; then
info_msg "Reconfiguring packages for $TARGET_ARCH ..."
register_binfmt
xbps-reconfigure -r $rootfs base-directories
run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure shadow"
run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure systemd"
run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure -a"
(rm -f $rootfs/lib32; rm -f $rootfs/lib64) >/dev/null 2>&1
else
run_cmd "systemd-nspawn -D $rootfs xbps-reconfigure -f systemd"
fi
#
# Setup default root password.
#
chroot $rootfs sh -c 'echo "root:voidlinux" | chpasswd -c SHA512'
#
# Cleanup rootfs.
#
rm -rf $rootfs/dev/* $rootfs/run/* $rootfs/tmp/* $rootfs/tmp/.* 2>/dev/null
rm -f $rootfs/etc/.pwd.lock 2>/dev/null
rm -rf $rootfs/var/cache/xbps 2>/dev/null
#
# Generate final tarball.
#
arch=$ARCH
if [ -n "$TARGET_ARCH" ]; then
rm -f $rootfs/usr/bin/qemu-*-static
arch=$TARGET_ARCH
fi
tarball=void-${arch}-rootfs-$(date '+%Y%m%d').tar.xz
run_cmd "tar cp -C $rootfs . | xz -9 > $tarball"
rm -rf $rootfs
info_msg "Successfully created $tarball"
# vim: set ts=4 sw=4 et:
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