fix: use absolute system profiler for Meet audio checks

extensions/google-meet/index.test.ts

@@ -112,7 +112,7 @@ function setup(
       : (options.nodesInvokeResult ?? { launched: true }),
   );
   const runCommandWithTimeout = vi.fn(async (argv: string[]) => {
-    if (argv[0] === "system_profiler") {
+    if (argv[0] === "/usr/sbin/system_profiler") {
       return { code: 0, stdout: "BlackHole 2ch", stderr: "" };
     }
     return { code: 0, stdout: "", stderr: "" };
@@ -506,7 +506,7 @@ describe("google-meet plugin", () => {
       expect(respond.mock.calls[0]?.[0]).toBe(true);
       expect(runCommandWithTimeout).toHaveBeenNthCalledWith(
         1,
-        ["system_profiler", "SPAudioDataType"],
+        ["/usr/sbin/system_profiler", "SPAudioDataType"],
         { timeoutMs: 10000 },
       );
       expect(runCommandWithTimeout).toHaveBeenNthCalledWith(

extensions/google-meet/src/node-host.ts

@@ -6,7 +6,10 @@ import {
   DEFAULT_GOOGLE_MEET_AUDIO_INPUT_COMMAND,
   DEFAULT_GOOGLE_MEET_AUDIO_OUTPUT_COMMAND,
 } from "./config.js";
-import { outputMentionsBlackHole2ch } from "./transports/chrome.js";
+import {
+  GOOGLE_MEET_SYSTEM_PROFILER_COMMAND,
+  outputMentionsBlackHole2ch,
+} from "./transports/chrome.js";
 
 type NodeBridgeSession = {
   id: string;
@@ -63,7 +66,10 @@ function assertBlackHoleAvailable(timeoutMs: number) {
   if (process.platform !== "darwin") {
     throw new Error("Chrome Meet transport with blackhole-2ch audio is currently macOS-only");
   }
-  const result = runCommandWithTimeout(["system_profiler", "SPAudioDataType"], timeoutMs);
+  const result = runCommandWithTimeout(
+    [GOOGLE_MEET_SYSTEM_PROFILER_COMMAND, "SPAudioDataType"],
+    timeoutMs,
+  );
   const output = `${result.stdout}\n${result.stderr}`;
   if (result.code !== 0 || !outputMentionsBlackHole2ch(output)) {
     throw new Error("BlackHole 2ch audio device not found on the node.");

extensions/google-meet/src/transports/chrome.ts

@@ -11,6 +11,8 @@ import {
   type ChromeRealtimeAudioBridgeHandle,
 } from "../realtime.js";
 
+export const GOOGLE_MEET_SYSTEM_PROFILER_COMMAND = "/usr/sbin/system_profiler";
+
 export function outputMentionsBlackHole2ch(output: string): boolean {
   return /\bBlackHole\s+2ch\b/i.test(output);
 }
@@ -24,7 +26,7 @@ export async function assertBlackHole2chAvailable(params: {
   }
 
   const result = await params.runtime.system.runCommandWithTimeout(
-    ["system_profiler", "SPAudioDataType"],
+    [GOOGLE_MEET_SYSTEM_PROFILER_COMMAND, "SPAudioDataType"],
     { timeoutMs: params.timeoutMs },
   );
   const output = `${result.stdout ?? ""}\n${result.stderr ?? ""}`;