feat(NODE-4713)!: modernize bundling (#534)

Co-authored-by: Durran Jordan <[email protected]>

Author: nbbeeken

.evergreen/install-dependencies.sh

@@ -43,21 +43,8 @@ nvm use --lts
 
 set -o xtrace
 
-
-
-# setup npm cache in a local directory
-cat <<EOT > .npmrc
-devdir=${NPM_CACHE_DIR}/.node-gyp
-init-module=${NPM_CACHE_DIR}/.npm-init.js
-cache=${NPM_CACHE_DIR}
-tmp=${NPM_TMP_DIR}
-registry=https://registry.npmjs.org
-EOT
-
 # install node dependencies
-# npm prepare runs after install and will compile the library
-# TODO(NODE-3555): rollup dependencies for node polyfills have broken peerDeps. We can remove this flag once we've removed them.
-npm install --legacy-peer-deps
+npm install
 
 set +o xtrace
 echo "Running: nvm use ${NODE_VERSION}"

.evergreen/run-typescript.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -o errexit # Exit the script with error if any of the commands fail
 
-# source "${PROJECT_DIRECTORY}/.evergreen/init-nvm.sh"
+source "${PROJECT_DIRECTORY}/.evergreen/init-nvm.sh"
 
 set -o xtrace
 

.mocharc.json

@@ -12,5 +12,8 @@
   "timeout": 10000,
   "failZero": true,
   "sort": true,
-  "color": true
+  "color": true,
+  "node-option": [
+    "experimental-vm-modules"
+  ]
 }

etc/rollup/rollup-plugin-require-rewriter/require_rewriter.mjs

@@ -0,0 +1,44 @@
+import MagicString from 'magic-string';
+
+const CRYPTO_IMPORT_ESM_SRC = `const nodejsRandomBytes = await (async () => {
+    try {
+        return (await import('node:crypto')).randomBytes;`;
+
+export class RequireRewriter {
+  /**
+   * Take the compiled source code input; types are expected to already have been removed
+   * Look for the function that depends on crypto, replace it with a top-level await
+   * and dynamic import for the node:crypto module.
+   *
+   * @param {string} code - source code of the module being transformed
+   * @param {string} id - module id (usually the source file name)
+   * @returns {{ code: string; map: import('magic-string').SourceMap }}
+   */
+  transform(code, id) {
+    if (!id.includes('node_byte_utils')) {
+      return;
+    }
+    if (!code.includes('const nodejsRandomBytes')) {
+      throw new Error(`Unexpected! 'const nodejsRandomBytes' is missing from ${id}`);
+    }
+
+    const start = code.indexOf('const nodejsRandomBytes');
+    const endString = `return require('node:crypto').randomBytes;`;
+    const end = code.indexOf(endString) + endString.length;
+
+    if (start < 0 || end < 0) {
+      throw new Error(
+        `Unexpected! 'const nodejsRandomBytes' or 'return require('node:crypto').randomBytes;' not found`
+      );
+    }
+
+    // MagicString lets us edit the source code and still generate an accurate source map
+    const magicString = new MagicString(code);
+    magicString.overwrite(start, end, CRYPTO_IMPORT_ESM_SRC);
+
+    return {
+      code: magicString.toString(),
+      map: magicString.generateMap({ hires: true })
+    };
+  }
+}