osi-tools/lib/mk/format-erofs.sh

#!/hint/bash
# Copyright (C) 2023-2024  Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later

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

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

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

format_options['erofs']='fsuuid erofs_compression'

format_checkconf:erofs() {
	shellcheck:format_checkconf
        if $arg_edit; then
                argparse:error '--conf=format=erofs does not support --edit'
        fi
	if [[ ${arg_conf[bootloader]} != none ]]; then
		argparse:error '--conf=format=erofs requires --conf=bootloader=none'
	fi
	if [[ -z "${arg_fmtconf[fsuuid]:-}" ]]; then
		arg_fmtconf[fsuuid]=$(uuidgen)
		arg_orig=(--fmtconf=fsuuid="${arg_fmtconf[fsuuid]}" "${arg_orig[@]}")
	fi
	packages+=(erofs-utils)
}

# Overrides ##########################################################

format_genfstab:erofs() {
	shellcheck:format_genfstab
	echo "UUID=${arg_fmtconf[fsuuid]} / erofs defaults 0 1"
}

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

format_wants_tmpfs['erofs']='true'
format_after_clamps_mtime['erofs']='true'

format_before:erofs() {
	:
}

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

	osi.sh:sudo mkfs.erofs \
		    -U"${arg_fmtconf[fsuuid]}" \
		    ${arg_fmtconf[erofs_compression]:+"-z${arg_fmtconf[erofs_compression]}"} \
		    "$tmpdir/erofs.img" "$mount_dev"
	cp -T "$tmpdir/erofs.img" "$arg_file"
)

shellcheck:format