#!/usr/bin/bash
# Copyright (C) 2023 Maxwell G <maxwell@gtmx.me>
#
# SPDX-License-Identifier: GPL-1.0-or-later OR MIT

# USAGE EXAMPLES:
# 1.
#   ./rpmeval.sh \
#       -D 'forgeurl https://git.sr.ht/~gotmax23/forge-srpm-macros'
#       -E '%forgemeta -v'
# 2.
#   RPM=rpmspec ./rpmeval.sh -P package.spec

set -euo pipefail

HERE="$(dirname "$(readlink -f "${0}")")"
_macro_dir="${HERE}/rpm/macros.d"
MACRO_DIR="${MACRO_DIR-"${_macro_dir}"}"
_macro_lua_dir="${HERE}/rpm/lua"
MACRO_LUA_DIR="${MACRO_LUA_DIR-"${_macro_lua_dir}"}"
args=(${RPM:-rpm})
if [ -n "${MACRO_DIR}" ]; then
    _default_macros_dir="$(rpm --showrc | grep 'Macro path' | awk -F ': ' '{print $2}')"
    args+=("--macros" "${_default_macros_dir}:${MACRO_DIR}/macros.*")
fi
if [ -n "${MACRO_LUA_DIR}" ]; then
    _default_lua_dir="$(rpm -E '%{lua: print(package.path)}')"
    _path="$(printf "'%s'" "${MACRO_LUA_DIR}/?.lua;${_default_lua_dir}")"
    args+=("-E" "%{lua: package.path = ${_path} }")
fi

exec "${args[@]}" "$@"