#!/hint/bash
# Copyright (C) 2024  Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later

source "${install_prefix}/lib/mk/shellcheck.sh"

formats+=('tar')
format_is_block['tar']='false'

# Option parsing #####################################################

format_options['tar']=''

format_checkconf:erofs() {
	shellcheck:format_checkconf
	if $arg_edit; then
		argparse:error '--conf=format=tar does not support --edit'
	fi
	if [[ ${arg_conf[bootloader]} != none ]]; then
		argparse:error '--conf=format=tar requires --conf=bootloader=none'
	fi
}

# format_is_block[…]='false' settings ################################

format_wants_tmpfs['tar']='true'
format_after_clamps_mtime['tar']='false'

format_before:tar() {
	:
}

format_after:tar() (
	shellcheck:format_after
	local tmpdir
	tmpdir=$(mktemp -dt -- "${0##*/}.tar.XXXXXXXXXX")
	trap "rm -f -- ${tmpdir@Q}/file.tar; rmdir -- ${tmpdir@Q}" EXIT

	# This mimics the bsdtar flags of makepkg(8).
	(cd "$mount_dev" && osi.sh:sudo find . -print0) | LC_COLLATE=C sort -z | osi.sh:sudo \
		bsdtar -C "$mount_dev" \
		--no-fflags --no-read-sparse \
		--norecurse --null --files-from - \
		--create --file "$tmpdir/file.tar"

	cp -T "$tmpdir/file.tar" "$arg_file"
)

shellcheck:format