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#!/bin/bash
#
# SPDX-License-Identifier: GPL-3.0-or-later
m4_include(lib/common.sh)
m4_include(lib/archroot.sh)
# umask might have been changed in /etc/profile
# ensure that sane default is set again
umask 0022
working_dir=''
umode=''
files=()
nspawn_args=()
usage() {
echo "Usage: ${0##*/} [options] working-dir package-list..."
echo ' options:'
echo ' -U Use pacman -U to install packages'
echo ' -C <file> Location of a pacman config file'
echo ' -M <file> Location of a makepkg config file'
echo ' -c <dir> Set pacman cache'
echo ' -f <file> Copy file from the host to the chroot'
echo ' -s Do not run setarch'
echo ' -h This message'
exit 1
}
while getopts 'hUC:M:c:f:s' arg; do
case "$arg" in
U) umode=U ;;
C) pac_conf="$OPTARG" ;;
M) makepkg_conf="$OPTARG" ;;
c) cache_dirs+=("$OPTARG") ;;
f) files+=("$OPTARG") ;;
s) nosetarch=1 ;;
h|?) usage ;;
*) error "invalid argument '%s'" "$arg"; usage ;;
esac
if [[ $arg != U ]]; then
nspawn_args+=("-$arg")
[[ -v OPTARG ]] && nspawn_args+=("$OPTARG")
fi
done
shift $((OPTIND - 1))
(( $# < 2 )) && die 'You must specify a directory and one or more packages.'
check_root
working_dir="$(readlink -f "$1")"
shift 1
[[ -z $working_dir ]] && die 'Please specify a working directory.'
if (( ${#cache_dirs[@]} == 0 )); then
mapfile -t cache_dirs < <(pacman-conf CacheDir)
fi
umask 0022
[[ -e $working_dir ]] && die "Working directory '%s' already exists" "$working_dir"
mkdir -p "$working_dir"
lock 9 "${working_dir}.lock" "Locking chroot"
if is_btrfs "$working_dir"; then
rmdir "$working_dir"
if ! btrfs subvolume create "$working_dir"; then
die "Couldn't create subvolume for '%s'" "$working_dir"
fi
chmod 0755 "$working_dir"
fi
for file in "${files[@]}"; do
mkdir -p "$(dirname "$working_dir$file")"
cp "$file" "$working_dir$file"
done
unshare --mount pacstrap -${umode}Mc ${pac_conf:+-C "$pac_conf"} "$working_dir" \
"${cache_dirs[@]/#/--cachedir=}" "$@" || die 'Failed to install all packages'
printf '%s.UTF-8 UTF-8\n' C en_US de_DE > "$working_dir/etc/locale.gen"
cat '/etc/hosts' > "$working_dir/etc/hosts"
echo 'LANG=C.UTF-8' > "$working_dir/etc/locale.conf"
echo "$CHROOT_VERSION" > "$working_dir/.arch-chroot"
systemd-machine-id-setup --root="$working_dir"
exec arch-nspawn \
"${nspawn_args[@]}" \
"$working_dir" locale-gen
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