fix(cli): prevent Termux relaunch and resize remount loops (#27110)

Co-authored-by: Spencer <spencertang@google.com>

packages/cli/src/utils/relaunch.test.ts

@@ -46,6 +46,14 @@ import { relaunchAppInChildProcess, relaunchOnExitCode } from './relaunch.js';
 describe('relaunchOnExitCode', () => {
   let processExitSpy: MockInstance;
   let stdinResumeSpy: MockInstance;
+  const originalPlatform = process.platform;
+
+  const setPlatform = (platform: NodeJS.Platform) => {
+    Object.defineProperty(process, 'platform', {
+      value: platform,
+      configurable: true,
+    });
+  };
 
   beforeEach(() => {
     processExitSpy = vi.spyOn(process, 'exit').mockImplementation(() => {
@@ -60,6 +68,7 @@ describe('relaunchOnExitCode', () => {
 
   afterEach(() => {
     vi.unstubAllEnvs();
+    setPlatform(originalPlatform);
     processExitSpy.mockRestore();
     stdinResumeSpy.mockRestore();
   });
@@ -92,6 +101,18 @@ describe('relaunchOnExitCode', () => {
     expect(processExitSpy).toHaveBeenCalledWith(0);
   });
 
+  it('should not relaunch on Android when RELAUNCH_EXIT_CODE is returned', async () => {
+    setPlatform('android');
+    const runner = vi.fn().mockResolvedValue(RELAUNCH_EXIT_CODE);
+
+    await expect(relaunchOnExitCode(runner)).rejects.toThrow(
+      'PROCESS_EXIT_CALLED',
+    );
+
+    expect(runner).toHaveBeenCalledTimes(1);
+    expect(processExitSpy).toHaveBeenCalledWith(RELAUNCH_EXIT_CODE);
+  });
+
   it('should handle runner errors', async () => {
     const error = new Error('Runner failed');
     const runner = vi.fn().mockRejectedValue(error);

packages/cli/src/utils/relaunch.ts

@@ -20,7 +20,7 @@ export async function relaunchOnExitCode(runner: () => Promise<number>) {
     try {
       const exitCode = await runner();
 
-      if (exitCode !== RELAUNCH_EXIT_CODE) {
+      if (process.platform === 'android' || exitCode !== RELAUNCH_EXIT_CODE) {
         process.exit(exitCode);
       }
     } catch (error) {