Don't swallow emulator hub when version differs (#9068)

Author: fredzqm

CHANGELOG.md

@@ -1 +1,2 @@
 - Support auth token JSON in `dataconnect_execute` MPC tool. (#9046)
+- Fixed the bugs when MCP tools cannot connect to emulator due to CLI version mis-matched. (#9068)

src/emulator/hub.ts

@@ -12,7 +12,6 @@ import { FunctionsEmulator } from "./functionsEmulator";
 import { ExpressBasedEmulator } from "./ExpressBasedEmulator";
 import { PortName } from "./portUtils";
 import { DataConnectEmulator } from "./dataconnectEmulator";
-import { isVSCodeExtension } from "../vsCodeUtils";
 
 // We use the CLI version from package.json
 const pkg = require("../../package.json");
@@ -53,10 +52,10 @@ export class EmulatorHub extends ExpressBasedEmulator {
     const data = fs.readFileSync(locatorPath, "utf8").toString();
     const locator = JSON.parse(data) as Locator;
 
-    // TODO: In case the locator file format is changed, handle issues with format incompatability
-    if (!isVSCodeExtension() && locator.version !== this.CLI_VERSION) {
-      logger.debug(`Found locator with mismatched version, ignoring: ${JSON.stringify(locator)}`);
-      return undefined;
+    if (locator.version !== this.CLI_VERSION) {
+      logger.debug(
+        `Found emulator locator with different version: ${JSON.stringify(locator)}, CLI_VERSION: ${this.CLI_VERSION}`,
+      );
     }
 
     return locator;