rootdir="$(cd "${0%/*}" 2>/dev/null; echo "$PWD")"

install_local_rebar() {
    if [ ! -x "${rootdir}/bin/rebar" ]; then
        if [ ! -d "${rootdir}/src/rebar" ]; then
            git clone --depth 1 https://github.com/apache/couchdb-rebar.git ${rootdir}/src/rebar
        fi
        make -C ${rootdir}/src/rebar
        if [ ! -d "${rootdir}/bin/" ]; then
            mkdir ${rootdir}/bin/
        fi
        mv ${rootdir}/src/rebar/rebar ${rootdir}/bin/rebar
        make -C ${rootdir}/src/rebar clean
        rm -rf ${rootdir}/src/rebar
    fi
}

install_local_enc() {
    if [ ! -x "${rootdir}/bin/enc" ]; then
        if [ ! -d "${rootdir}/src/erlang-native-compiler" ]; then
            git clone --depth 1 https://github.com/davisp/erlang-native-compiler.git ${rootdir}/src/erlang-native-compiler
        fi
        make -C ${rootdir}/src/erlang-native-compiler
        if [ ! -d "${rootdir}/bin/" ]; then
            mkdir ${rootdir}/bin/
        fi
        mv ${rootdir}/src/erlang-native-compiler/enc ${rootdir}/bin/enc
        make -C ${rootdir}/src/erlang-native-compiler clean
        rm -rf ${rootdir}/src/erlang-native-compiler
    fi
}

if [ -z "${REBAR}" ]; then
    install_local_rebar
    REBAR=${rootdir}/bin/rebar
fi

if [ -z "${ENC}" ]; then
    install_local_enc
    ENC=${rootdir}/bin/enc
fi