#!/bin/bash
###############################################################################
#                                                                             #
# Pakfire - The IPFire package management system                              #
# Copyright (C) 2021 Pakfire development team                                 #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

error() {
	echo "$@" >&2
}

main() {
	local buildroot="${1}"
	shift

	# Check if BUILDROOT exists
	if [ ! -d "${buildroot}" ]; then
		error "BUILDROOT does not exist"
		return 1
	fi

	# Fetch the architecture
	local arch="$(uname -m)"

	case "${arch}" in
		# Fall through on these architectures
		aarch64|x86_64)
			;;

		# This check isn't relevant
		*)
			return 0
			;;
	esac

	local files=()

	local file
	for file in $(find "${buildroot}/usr/lib" -maxdepth 1 -name "*.so*" 2>/dev/null); do
		# Ignore any non-ELF files
		if ! file "${file}" | grep -q "ELF"; then
			continue
		fi

		files+=( "${file}" )
	done

	# Log errors
	if [ "${#files[@]}" -gt 0 ]; then
		error "Libraries are not allowed to be installed in /usr/lib"
		local file
		for file in ${files[@]}; do
			error "  ${file/${buildroot}/}"
		done

		return 1
	fi

	return 0
}

main "$@" || exit $?
