future-install-scripts/arch-chroot.in

#!/bin/bash

shopt -s extglob

m4_include(common)

usage() {
  cat <<EOF
usage: ${0##*/} <chroot-dir>

EOF
}

if [[ -z $1 || $1 = @(-h|--help) ]]; then
  usage
  exit $(( $# ? 0 : 1 ))
fi

(( EUID == 0 )) || die 'This script must be run with root privileges'
chrootdir=$1

[[ -d $chrootdir ]] || die "Can't create chroot on non-directory %s" "$1"

trap 'api_fs_umount "$chrootdir" 2>/dev/null' EXIT

api_fs_mount "$chrootdir" || die "failed to setup API filesystems in chroot %s" "$1"
mount -B /etc/resolv.conf "$chrootdir/etc/resolv.conf"

chroot "$@"

umount "$chrootdir/etc/resolv.conf"