Suppress node-gyp log messages on MacOS

Question

I am trying to install couchbase using npm. I have the latest version of node (v9.6.1) and npm (5.8.0) installed. It seems the prebuilt binary is not available for my environment. So it is trying to build the binaries locally.

During npm install, I see a lot of messages like below:

prebuild-install || node-gyp rebuild

prebuild-install info begin Prebuild-install version 2.3.0
prebuild-install info looking for local prebuild @ prebuilds/couchbase-v2.4.3-node-v59-darwin-x64.tar.gz
prebuild-install info looking for cached prebuild @ /Users/XXXXXX/.npm/_prebuilds/https-github.com-couchbase-couchnode-releases-download-v2.4.3-couchbase-v2.4.3-node-v59-darwin-x64.tar.gz
prebuild-install http request GET https://github.com/couchbase/couchnode/releases/download/v2.4.3/couchbase-v2.4.3-node-v59-darwin-x64.tar.gz
prebuild-install http 404 https://github.com/couchbase/couchnode/releases/download/v2.4.3/couchbase-v2.4.3-node-v59-darwin-x64.tar.gz
prebuild-install WARN install No prebuilt binaries found (target=9.6.1 runtime=node arch=x64 platform=darwin)
  COPY ../deps/lcb/include/libcouchbase/libuv_io_opts.h
  COPY ../deps/lcb/include/libcouchbase/plugins/io/libuv/plugin-libuv.c
  COPY ../deps/lcb/include/libcouchbase/plugins/io/libuv/plugin-internal.h
  COPY ../deps/lcb/include/libcouchbase/plugins/io/libuv/libuv_compat.h
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/bucketconfig/bc_cccp.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/bucketconfig/bc_file.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/bucketconfig/bc_http.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/bucketconfig/bc_static.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/bucketconfig/confmon.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/http/http.o

  ../deps/lcb/src/http/http.cc:219:27: warning: suggest braces around initialization of subobject [-Wmissing-braces]
lcb_host_t reqhost = {0};
                      ^
                      {}
1 warning generated.
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/http/http_io.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/jsparse/parser.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/lcbht/lcbht.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/lcbio/connect.o
  CC(target) Release/obj.target/couchbase/deps/lcb/src/lcbio/ctx.o
  CC(target) Release/obj.target/couchbase/deps/lcb/src/lcbio/iotable.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/lcbio/ioutils.o
  CXX(target) Release/obj.target/couchbase/deps/lcb/src/lcbio/manager.o

I assume these logs are from node-gyp rebuild execution.

Is there a way to suppress these logs? Is there a place we can set the log-level for node-gyp?