# Copyright (C) 2024 Web Server LLC


if [ $NGX_FEATURE_CACHE = YES ]; then
    NGX_FC_PATH=$NGX_OBJS

elif [ $NGX_FEATURE_CACHE != NO ]; then

    NGX_FC_PATH=${NGX_FEATURE_CACHE}
    mkdir -p $NGX_FC_PATH
fi


# tries to load cache for current autotest environment
check_cache()
{
    if [ $NGX_FEATURE_CACHE = NO ]; then
        return 1
    fi

    # remove chars non-suitable for filename and limit length to 64

    OPTIND=1
    ngx_uniq=
    N=0

    while getopts ":" opt "-$1"; do
        case "$OPTARG" in
            [A-Za-z0-9])
                ngx_uniq=${ngx_uniq}$OPTARG
                ;;
            *)
                ngx_uniq=${ngx_uniq}_
                ;;
        esac

        N=$(($N + 1))

        if [ $N -gt 64 ]; then
            break
        fi
    done

    NGX_AUTOTEST_CACHE=$NGX_FC_PATH/$2.$ngx_uniq.cache

    if [ -f $NGX_AUTOTEST_CACHE ]; then

        . $NGX_AUTOTEST_CACHE

        if [ $ngx_found = yes ]; then
            echo "using cached $1 ... found"
        else
            echo "using cached $1 ... not found"
        fi

        return 0

    else
        return 1
    fi
}


cache_output_start()
{
    exec 3>&1 1>$NGX_AUTOTEST_CACHE
}


cache_output_end()
{
    exec 1>&3 3>&-
}