chore: add dependency-check parser for mjs files (#151)

Author: david-luna

packages/opentelemetry-node/package.json

@@ -32,7 +32,7 @@
     "lint:eslint": "eslint --ext=js,mjs,cjs . # requires node >=16.0.0",
     "lint:types": "rm -rf build/lint-types && tsc --outDir build/lint-types && diff -ur types build/lint-types",
     "lint:fix": "eslint --ext=js,mjs,cjs --fix . # requires node >=16.0.0",
-    "lint:deps": "dependency-check require.js  hook.mjs 'lib/**/*.js' 'test/**/*.js' -i @types/tape -i dotenv -i @opentelemetry/winston-transport  # dep check does not like import.mjs",
+    "lint:deps": "dependency-check require.js import.mjs hook.mjs 'lib/**/*.js' 'test/**/*.js' -e mjs:../../scripts/parse-mjs-source -i @types/tape -i dotenv -i @opentelemetry/winston-transport",
     "lint:license-files": "../../scripts/gen-notice.sh --lint .  # requires node >=16",
     "lint:changelog": "../../scripts/extract-release-notes.sh .",
     "test": "NODE_OPTIONS='-r dotenv/config' DOTENV_CONFIG_PATH=./test/test-services.env tape test/**/*.test.js",
@@ -55,6 +55,7 @@
     "@opentelemetry/exporter-logs-otlp-proto": "^0.50.0",
     "@opentelemetry/exporter-metrics-otlp-proto": "^0.50.0",
     "@opentelemetry/host-metrics": "^0.35.0",
+    "@opentelemetry/instrumentation": "^0.50.0",
     "@opentelemetry/instrumentation-bunyan": "^0.37.0",
     "@opentelemetry/instrumentation-express": "^0.37.0",
     "@opentelemetry/instrumentation-fastify": "^0.35.0",

scripts/parse-mjs-source.js

@@ -0,0 +1,62 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+const acorn = require('acorn-node');
+const walk = require('acorn-node/walk');
+
+function find(source, opts) {
+    const ast = acorn.parse(source, {
+        // to parse ESM
+        sourceType: 'module',
+        // top level await
+        allowAwaitOutsideFunction: true,
+    });
+
+    const modules = [];
+
+    // TODO: walk the AST and return the list of modues in
+    // `strings` property
+    walk.recursive(ast, null, {
+        // import { a, b, c } from 'module';
+        ImportDeclaration(node) {
+            modules.push(node.source.value);
+        },
+        // export { a, b, c } from 'module';
+        ExportNamedDeclaration(node) {
+            modules.push(node.source.value);
+        },
+        // const x = await import('module');
+        ExpressionStatement(node) {
+            if (
+                node.expression.type === 'AwaitExpression' &&
+                node.expression.argument.type === 'CallExpression' &&
+                node.expression.argument.callee.type === 'Import'
+            ) {
+                modules.push(node.expression.argument.arguments[0].value);
+            }
+        },
+    });
+
+    // Cleanup `node:` prefix for built-in modules
+    return modules.map((m) => m.replace(/^node:/, ''));
+}
+
+module.exports = function (src, opts) {
+    return find(src, opts);
+};