config

ngx_addon_name=ngx_http_ffi_client_module

ngx_http_ffi_client_lua_module_dir="${NGX_HTTP_LUA_MODULE_DIR:-}"
ngx_http_ffi_client_use_llhttp="${NGX_HTTP_FFI_CLIENT_USE_LLHTTP:-1}"

if [ -z "$ngx_http_ffi_client_lua_module_dir" ]; then
    if [ -f "$ngx_addon_dir/../lua-nginx-module/src/api/ngx_http_lua_api.h" ]; then
        ngx_http_ffi_client_lua_module_dir="$(cd "$ngx_addon_dir/../lua-nginx-module" && pwd)"
    else
        ngx_http_ffi_client_lua_module_dir="/home/rain/git/lua-nginx-module"
    fi
fi

if [ ! -f "$ngx_http_ffi_client_lua_module_dir/src/api/ngx_http_lua_api.h" ]; then
    cat << END
$0: error: ngx_http_ffi_client requires ngx_http_lua_api.h.
Set NGX_HTTP_LUA_MODULE_DIR to a lua-nginx-module checkout, for example:
NGX_HTTP_LUA_MODULE_DIR=/home/rain/git/lua-nginx-module
END
    exit 1
fi

HTTP_MODULES="$HTTP_MODULES ngx_http_ffi_client_module"

ngx_http_ffi_client_srcs="\
    $ngx_addon_dir/src/ngx_http_ffi_client_module.c \
    $ngx_addon_dir/src/ngx_http_ffi_client_lua.c \
    $ngx_addon_dir/src/ngx_http_ffi_client_keepalive.c \
    $ngx_addon_dir/src/ngx_http_ffi_client_request.c"

if [ "$ngx_http_ffi_client_use_llhttp" = "1" ]; then
    # Build the vendored llhttp parser as a standalone static library so its
    # generated C is not subject to nginx's -Werror build flags, then link it
    # in via CORE_LIBS. The FFI glue (response_llhttp.c) still builds as a
    # normal addon source under nginx's flags.
    ngx_http_ffi_client_llhttp_dir="$ngx_addon_dir/src/llhttp"
    ngx_http_ffi_client_llhttp_lib="$ngx_http_ffi_client_llhttp_dir/libllhttp.a"

    echo "ngx_http_ffi_client: building $ngx_http_ffi_client_llhttp_lib"
    for ngx_http_ffi_client_unit in llhttp api http; do
        # CC is unquoted on purpose: nginx's own auto/ scripts treat it as a
        # word list, and a build that sets CC to more than a bare program
        # name -- "gcc -fsanitize=address ...", a ccache or cross-compile
        # wrapper -- would otherwise be looked up as one long filename.
        ${CC:-cc} -O2 -fPIC -I "$ngx_http_ffi_client_llhttp_dir" \
            -c "$ngx_http_ffi_client_llhttp_dir/$ngx_http_ffi_client_unit.c" \
            -o "$ngx_http_ffi_client_llhttp_dir/$ngx_http_ffi_client_unit.o" \
            || exit 1
    done
    ar rcs "$ngx_http_ffi_client_llhttp_lib" \
        "$ngx_http_ffi_client_llhttp_dir/llhttp.o" \
        "$ngx_http_ffi_client_llhttp_dir/api.o" \
        "$ngx_http_ffi_client_llhttp_dir/http.o" \
        || exit 1

    ngx_http_ffi_client_srcs="$ngx_http_ffi_client_srcs \
    $ngx_addon_dir/src/ngx_http_ffi_client_response_llhttp.c"
    CORE_INCS="$CORE_INCS $ngx_http_ffi_client_llhttp_dir"
    CORE_LIBS="$CORE_LIBS $ngx_http_ffi_client_llhttp_lib"
    CFLAGS="$CFLAGS -DNGX_HTTP_FFI_CLIENT_USE_LLHTTP=1"
else
    ngx_http_ffi_client_srcs="$ngx_http_ffi_client_srcs \
    $ngx_addon_dir/src/ngx_http_ffi_client_response.c"
fi

NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_http_ffi_client_srcs"

CORE_INCS="$CORE_INCS $ngx_http_ffi_client_lua_module_dir/src/api \
    $ngx_http_ffi_client_lua_module_dir/src \
    $ngx_addon_dir/src/compat"