#!/bin/bash

usage() {

    echo "usage `basename $0` [OPTIONS]"

    echo "  --threads NUM       The number of threads to use for running tests."

    echo "  --testsuite-dir DIR Directory containing the test-suite source."

    echo "  --compiler [gcc|clang] The compiler to test."

}

cc="clang"

cxx="clang++"

testsuite_dir="/usr/share/llvm-test-suite/"

thread_args=""

while [ $# -gt 0 ]; do

    case $1 in

        --threads)

            shift

            threads="$1"

            ;;

        --testsuite-dir)

            shift

            testsuire_dir="$1"

            ;;

        --compiler)

            shift

            compiler="$1"

            case $compiler in

                clang)

                    cc="clang"

                    cxx="clang++"

                    ;;

                gcc)

                    cc="gcc"

                    cxx="g++"

                    ;;

                *)

                    echo "unknown compiler: $1"

                    exit 1

                    ;;

            esac

            ;;

        * )

            echo "unknown option: $1"

            echo ""

            usage

            exit 1

            ;;

    esac

    shift

done

if [ -n "$threads" ]; then

  thread_args="-j$threads"

fi

set -xe

cd $(mktemp -d)

cmake -G Ninja $testsuite_dir \

    -DCMAKE_C_COMPILER=$cc \

    -DCMAKE_CXX_COMPILER=$cxx \

    -DTEST_SUITE_LIT_FLAGS="-sv$thread_args"

ninja $thread_args check