#!/bin/bash

#

# shim-find-debuginfo.sh

# Copyright (C) 2017 Peter Jones <Peter Jones@random>

#

# Distributed under terms of the GPLv3 license.

#

set -e

set -u

mainarch=$1 && shift

if [ $# == 1 ]; then

    altarch=$1 && shift

fi

if ! [ -v RPM_BUILD_ROOT ]; then

    echo "RPM_BUILD_ROOT must be set" 1>&2

    exit 1

fi

findsource()

{

    (

        cd "${RPM_BUILD_ROOT}"

        find usr/src/debug/ -type d | sed -e "s,^,%dir /," | sort -u | tac

        find usr/src/debug/ -type f | sed -e "s,^,/," | sort -u | tac

    )

}

finddebug()

{

    arch=$1 && shift

    declare -a dirs=()

    declare -a files=()

    declare -a excludes=()

    declare -a tmp=()

    pushd "${RPM_BUILD_ROOT}" >/dev/null 2>&1

    mapfile -t tmp < <(find usr/lib/debug/ -type f -iname "*.efi.debug")

    for x in "${tmp[@]}" ; do

        if ! [ -e "${x}" ]; then

            break

        fi

        if [[ ${x} =~ ${arch}\.efi\.debug$ ]]; then

            files[${#files[@]}]=${x}

        else

            excludes[${#excludes[@]}]=${x}

        fi

    done

    for x in usr/lib/debug/.build-id/*/*.debug ; do

        if ! [ -e "${x}" ]; then

            break

        fi

        link=$(readlink "${x}")

        if [[ ${link} =~ ${arch}\.efi\.debug$ ]]; then

            files[${#files[@]}]=${x}

            files[${#files[@]}]=${x%%.debug}

        else

            excludes[${#excludes[@]}]=${x}

            excludes[${#excludes[@]}]=${x%%.debug}

        fi

    done

    for x in "${files[@]}" ; do

        declare name

        name=$(dirname "/${x}")

        while [ "${name}" != "/" ]; do

            case "${name}" in

            "/usr/lib/debug"|"/usr/lib"|"/usr")

                ;;

            *)

                dirs[${#dirs[@]}]=${name}

                ;;

            esac

            name=$(dirname "${name}")

        done

    done

    popd >/dev/null 2>&1

    for x in "${dirs[@]}" ; do

        echo "%dir ${x}"

    done | sort | uniq

    for x in "${files[@]}" ; do

        echo "/${x}"

    done | sort | uniq

    for x in "${excludes[@]}" ; do

        echo "%exclude /${x}"

    done

}

findsource > "build-${mainarch}/debugsource.list"

finddebug "${mainarch}" > "build-${mainarch}/debugfiles.list"

if [ -v altarch ]; then

    finddebug "${altarch}" > "build-${altarch}/debugfiles.list"

fi