Downloading Node and NPM deps via gclient sync.

third_party/node/update_npm_deps

+#!/bin/bash
+
+# Copyright 2017 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Script for updating WebUI's NPM deps.
+#  1) Update package.json file to point to the desired version.
+#  2) Run this script.
+#  3) Upload the compressed node_modules.tar.gz file to the Google Storage
+#     bucket (commands to upload binaries are printed at step 2).
+#  4) Land a CL with the changes generated by this script.
+
+set -eu
+cd "$(dirname "$0")"
+
+rm -rf node_modules
+
+npm install --no-bin-links --only=prod
+rsync -c --delete -r -q --exclude-from="npm_exclude.txt" \
+      --prune-empty-dirs "node_modules/" "node_modules_filtered/"
+
+echo -e "\n---------------------------------------------------------"
+echo "Before filtering:" size: $(du -h node_modules/ | tail -n1 | cut -f1) ", files: " $(find node_modules/ -type f | wc -l)
+rm -r node_modules
+mv node_modules_filtered node_modules
+
+echo "After filtering:" size: $(du -h node_modules/ | tail -n1 | cut -f1) ", files: " $(find node_modules/ -type f | wc -l)
+
+tar cfz node_modules.tar.gz node_modules
+echo "After compressing:" size: $(du -h node_modules.tar.gz | tail -n1 | cut -f1)
+
+sha1="$(sha1sum node_modules.tar.gz | cut -d ' ' -f1)"
+echo "${sha1}" > node_modules.tar.gz.sha1
+echo "Please run the following manually to update Google Storage bucket:"
+echo "> gsutil.py cp node_modules.tar.gz gs://chromium-nodejs/${sha1}"
+echo "DONE"
+echo -e "---------------------------------------------------------"