#!/bin/bash
# This file is part of Firejail project
# Copyright (C) 2014-2023 Firejail Authors
# License GPL v2
#
# Usage: ./platform/rpm/mkrpm.sh firejail <version> "<config options>"
#
# Builds rpms in a temporary directory then places the result in the
# current working directory.

name="$1"
# Strip any trailing prefix from the version like -rc1 etc
version="$(printf '%s\n' "$2" | sed 's/\-.*//g')"
config_opt="$3"

if [[ ! -f "platform/rpm/${name}.spec" ]]; then
    printf 'error: spec file not found for name %s\n' "${name}" >&2
    exit 1
fi

if [[ -z "${version}" ]]; then
    printf 'error: version must be given\n' >&2
    exit 1
fi

if [[ -z "${config_opt}" ]]; then
    config_opt="--disable-userns --disable-contrib-install"
fi

# Make a temporary directory and arrange to clean up on exit
tmpdir="$(mktemp -d)"
mkdir -p "${tmpdir}"/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
function cleanup {
    rm -rf "${tmpdir}"
}
trap cleanup EXIT

# Create the spec file
tmp_spec_file="${tmpdir}/SPECS/${name}.spec"
sed -e "s/__NAME__/${name}/g" \
    -e "s/__VERSION__/${version}/g" \
    -e "s/__CONFIG_OPT__/${config_opt}/g" \
    "platform/rpm/${name}.spec" >"${tmp_spec_file}"
# FIXME: We could parse RELNOTES and create a %changelog section here

# Copy the source to build into a tarball
tar --exclude='./.git*' --transform "s/^./${name}-${version}/" \
    -czf "${tmpdir}/SOURCES/${name}-${version}.tar.gz" .

# Build the files (rpm, debug rpm and source rpm)
rpmbuild --quiet --define "_topdir ${tmpdir}" -ba "${tmp_spec_file}"

# Copy the results to cwd
mv "${tmpdir}/SRPMS"/*.rpm "${tmpdir}/RPMS"/*/*rpm .