Move node-libs-browser to ui-shared-deps-npm (elastic#130877)

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

packages/kbn-optimizer/src/babel_runtime_helpers/find_node_libs_browser_polyfills_in_entry_bundles.ts

@@ -0,0 +1,53 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+import Path from 'path';
+
+import { run } from '@kbn/dev-utils';
+import { REPO_ROOT } from '@kbn/utils';
+
+import { OptimizerConfig } from '../optimizer';
+import { parseStats, inAnyEntryChunk } from './parse_stats';
+
+export async function runFindNodeLibsBrowserPolyfillsInEntryBundlesCli() {
+  run(async ({ log }) => {
+    const config = OptimizerConfig.create({
+      includeCoreBundle: true,
+      repoRoot: REPO_ROOT,
+    });
+
+    const paths = config.bundles.map((b) => Path.resolve(b.outputDir, 'stats.json'));
+
+    log.info('analyzing', paths.length, 'stats files');
+    log.verbose(paths);
+
+    const imports = new Set();
+    for (const path of paths) {
+      const stats = parseStats(path);
+
+      for (const module of stats.modules) {
+        if (!inAnyEntryChunk(stats, module)) {
+          continue;
+        }
+
+        // Relying on module name instead of actual imports because these are usual polyfills that assume the global
+        // Node.js environment when development (i.e.: Buffer doesn't require an import to be used).
+        if (module.name.includes('node-libs-browser/node_modules/')) {
+          imports.add(module.name);
+        }
+      }
+    }
+
+    log.success('found', imports.size, 'node-libs-browser/* imports in entry bundles');
+    log.write(
+      Array.from(imports, (i) => `'${i}',`)
+        .sort()
+        .join('\n')
+    );
+  });
+}

packages/kbn-optimizer/src/babel_runtime_helpers/index.ts

@@ -7,3 +7,4 @@
  */
 
 export * from './find_babel_runtime_helpers_in_entry_bundles';
+export * from './find_node_libs_browser_polyfills_in_entry_bundles';

packages/kbn-optimizer/src/babel_runtime_helpers/parse_stats.ts

@@ -20,6 +20,7 @@ const partialObject = <P extends Props>(props: P) => {
 export type Module = TypeOf<typeof moduleSchema>;
 const moduleSchema = partialObject({
   identifier: schema.string(),
+  name: schema.string(),
   chunks: schema.arrayOf(schema.oneOf([schema.string(), schema.number()])),
   reasons: schema.arrayOf(
     partialObject({

packages/kbn-ui-shared-deps-npm/webpack.config.js

@@ -37,6 +37,10 @@ module.exports = (_, argv) => {
         'regenerator-runtime/runtime',
         'whatwg-fetch',
         'symbol-observable',
+        // Parts of node-libs-browser that are used in many places across Kibana
+        'buffer',
+        'punycode',
+        'util',
 
         /**
          * babel runtime helpers referenced from entry chunks

scripts/find_node_libs_browser_polyfills_in_use.js

@@ -0,0 +1,10 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+require('../src/setup_node_env/no_transpilation');
+require('@kbn/optimizer').runFindNodeLibsBrowserPolyfillsInEntryBundlesCli();