fix: remove semver dependency

package.json

@@ -25,8 +25,7 @@
     "express": "^4.21.2",
     "minimist": "^1.2.8",
     "on-finished": "^2.3.0",
-    "read-package-up": "^11.0.0",
-    "semver": "^7.7.1"
+    "read-package-up": "^11.0.0"
   },
   "scripts": {
     "test": "mocha build/test --recursive",
@@ -58,7 +57,6 @@
     "@types/mocha": "^10.0.0",
     "@types/node": "^22.13.14",
     "@types/on-finished": "2.3.5",
-    "@types/semver": "^7.7.0",
     "@types/sinon": "^17.0.4",
     "@types/supertest": "6.0.3",
     "gts": "6.0.2",

src/async_local_storage.ts

@@ -1,7 +1,5 @@
-import * as semver from 'semver';
 import {Request, Response} from './functions';
 import {NextFunction} from 'express';
-import {requiredNodeJsVersionForLogExecutionID} from './options';
 import type {AsyncLocalStorage} from 'node:async_hooks';
 
 export interface ExecutionContext {
@@ -16,13 +14,6 @@ export async function asyncLocalStorageMiddleware(
   res: Response,
   next: NextFunction,
 ) {
-  if (
-    semver.lt(process.versions.node, requiredNodeJsVersionForLogExecutionID)
-  ) {
-    // Skip for unsupported Node.js version.
-    next();
-    return;
-  }
   if (!asyncLocalStorage) {
     const asyncHooks = await import('node:async_hooks');
     asyncLocalStorage = new asyncHooks.AsyncLocalStorage();

src/loader.ts

@@ -19,7 +19,6 @@
  */
 
 import * as path from 'path';
-import * as semver from 'semver';
 import {pathToFileURL} from 'url';
 import {HandlerFunction} from './functions';
 import {SignatureType} from './types';
@@ -31,6 +30,11 @@ import {getRegisteredFunction} from './function_registry';
 // Exported for testing.
 export const MIN_NODE_VERSION_ESMODULES = '13.2.0';
 
+export const esModuleSupported = (() => {
+  const [major, minor] = process.versions.node.split('.', 2).map(Number);
+  return major > 13 || (major === 13 && minor >= 2);
+})();
+
 /**
  * Determines whether the given module is an ES module.
  *
@@ -104,7 +108,7 @@ export async function getUserFunction(
     let functionModule;
     const esModule = await isEsModule(functionModulePath);
     if (esModule) {
-      if (semver.lt(process.version, MIN_NODE_VERSION_ESMODULES)) {
+      if (esModuleSupported === false) {
         console.error(
           `Cannot load ES Module on Node.js ${process.version}. ` +
             `Please upgrade to Node.js v${MIN_NODE_VERSION_ESMODULES} and up.`,

src/options.ts

@@ -13,7 +13,6 @@
 // limitations under the License.
 
 import * as minimist from 'minimist';
-import * as semver from 'semver';
 import {resolve} from 'path';
 import {SignatureType, isValidSignatureType} from './types';
 
@@ -141,24 +140,23 @@ const IgnoredRoutesOption = new ConfigurableOption<string | null>(
 );
 
 export const requiredNodeJsVersionForLogExecutionID = '13.0.0';
+
+export const logExecutionIdSupported =
+  Number(process.versions.node.split('.', 1)[0]) >= 13;
+
 const ExecutionIdOption = new ConfigurableOption(
   'log-execution-id',
   'LOG_EXECUTION_ID',
   false,
   x => {
-    const nodeVersion = process.versions.node;
-    const isVersionSatisfied = semver.gte(
-      nodeVersion,
-      requiredNodeJsVersionForLogExecutionID,
-    );
     const isTrue =
       (typeof x === 'boolean' && x) ||
       (typeof x === 'string' && x.toLowerCase() === 'true');
-    if (isTrue && !isVersionSatisfied) {
+    if (isTrue && !logExecutionIdSupported) {
       console.warn(
         `Execution id is only supported with Node.js versions
         ${requiredNodeJsVersionForLogExecutionID} and above. Your
-        current version is ${nodeVersion}. Please upgrade.`,
+        current version is ${process.versions.node}. Please upgrade.`,
       );
       console.warn('Proceeding with execution id support disabled...');
       return false;

src/server.ts

@@ -25,7 +25,7 @@ import {timeoutMiddleware} from './middleware/timeout';
 import {wrapUserFunction} from './function_wrappers';
 import {asyncLocalStorageMiddleware} from './async_local_storage';
 import {executionContextMiddleware} from './execution_context';
-import {FrameworkOptions} from './options';
+import {FrameworkOptions, logExecutionIdSupported} from './options';
 
 /**
  * Creates and configures an Express application and returns an HTTP server
@@ -106,8 +106,11 @@ export function getServer(
 
   // Get execution context.
   app.use(executionContextMiddleware);
+
   // Store execution context to async local storge.
-  app.use(asyncLocalStorageMiddleware);
+  if (logExecutionIdSupported) {
+    app.use(asyncLocalStorageMiddleware);
+  }
 
   if (
     options.signatureType === 'event' ||

test/async_local_storage.ts

@@ -6,9 +6,9 @@ import {
 import {Request, Response} from '../src/functions';
 import {NextFunction} from 'express';
 import * as assert from 'assert';
-import * as semver from 'semver';
+import {logExecutionIdSupported} from '../src/options';
 
-const runOrSkip = semver.lt(process.versions.node, '13.0.0') ? it.skip : it;
+const runOrSkip = logExecutionIdSupported ? it.skip : it;
 
 describe('asyncLocalStorageMiddleware', () => {
   runOrSkip('async local storage', async () => {

test/loader.ts

@@ -14,7 +14,6 @@
 
 import * as assert from 'assert';
 import * as express from 'express';
-import * as semver from 'semver';
 import * as functions from '../src/functions';
 import * as loader from '../src/loader';
 import * as FunctionRegistry from '../src/function_registry';
@@ -80,7 +79,7 @@ describe('loading function', () => {
       );
       return loadedFunction?.userFunction as functions.HttpFunction;
     };
-    if (semver.lt(process.version, loader.MIN_NODE_VERSION_ESMODULES)) {
+    if (loader.esModuleSupported === false) {
       it(`should fail to load function in an ES module ${test.name}`, async () => {
         void assert.rejects(loadFn);
       });

test/options.ts

@@ -13,12 +13,11 @@
 // limitations under the License.
 
 import * as assert from 'assert';
-import * as semver from 'semver';
 import {resolve} from 'path';
 import {
   parseOptions,
   FrameworkOptions,
-  requiredNodeJsVersionForLogExecutionID,
+  logExecutionIdSupported,
 } from '../src/options';
 
 describe('parseOptions', () => {
@@ -202,9 +201,7 @@ describe('parseOptions', () => {
   executionIdTestData.forEach(testCase => {
     it(testCase.name, () => {
       const options = parseOptions(testCase.cliOpts, testCase.envVars);
-      if (
-        semver.lt(process.versions.node, requiredNodeJsVersionForLogExecutionID)
-      ) {
+      if (logExecutionIdSupported === false) {
         assert.strictEqual(options.enableExecutionId, false);
       } else {
         assert.strictEqual(options.enableExecutionId, true);