Merge pull request #1133 from gabi-simons/fix/remote-control-stdin-clean

fix: auto-accept remote-control prompt to prevent immediate exit

setup/service.test.ts

@@ -62,6 +62,7 @@ ExecStart=${nodePath} ${projectRoot}/dist/index.js
 WorkingDirectory=${projectRoot}
 Restart=always
 RestartSec=5
+KillMode=process
 Environment=HOME=${homeDir}
 Environment=PATH=/usr/local/bin:/usr/bin:/bin:${homeDir}/.local/bin
 StandardOutput=append:${projectRoot}/logs/nanoclaw.log
@@ -142,6 +143,16 @@ describe('systemd unit generation', () => {
     expect(unit).toContain('RestartSec=5');
   });
 
+  it('uses KillMode=process to preserve detached children', () => {
+    const unit = generateSystemdUnit(
+      '/usr/bin/node',
+      '/home/user/nanoclaw',
+      '/home/user',
+      false,
+    );
+    expect(unit).toContain('KillMode=process');
+  });
+
   it('sets correct ExecStart', () => {
     const unit = generateSystemdUnit(
       '/usr/bin/node',

setup/service.ts

@@ -243,6 +243,7 @@ ExecStart=${nodePath} ${projectRoot}/dist/index.js
 WorkingDirectory=${projectRoot}
 Restart=always
 RestartSec=5
+KillMode=process
 Environment=HOME=${homeDir}
 Environment=PATH=/usr/local/bin:/usr/bin:/bin:${homeDir}/.local/bin
 StandardOutput=append:${projectRoot}/logs/nanoclaw.log

src/remote-control.test.ts

@@ -24,7 +24,12 @@ import {
 // --- Helpers ---
 
 function createMockProcess(pid = 12345) {
-  return { pid, unref: vi.fn(), kill: vi.fn() };
+  return {
+    pid,
+    unref: vi.fn(),
+    kill: vi.fn(),
+    stdin: { write: vi.fn(), end: vi.fn() },
+  };
 }
 
 describe('remote-control', () => {
@@ -45,14 +50,20 @@ describe('remote-control', () => {
     stdoutFileContent = '';
 
     // Default fs mocks
-    mkdirSyncSpy = vi.spyOn(fs, 'mkdirSync').mockImplementation(() => undefined as any);
+    mkdirSyncSpy = vi
-    writeFileSyncSpy = vi.spyOn(fs, 'writeFileSync').mockImplementation(() => {});
+      .spyOn(fs, 'mkdirSync')
+      .mockImplementation(() => undefined as any);
+    writeFileSyncSpy = vi
+      .spyOn(fs, 'writeFileSync')
+      .mockImplementation(() => {});
     unlinkSyncSpy = vi.spyOn(fs, 'unlinkSync').mockImplementation(() => {});
     openSyncSpy = vi.spyOn(fs, 'openSync').mockReturnValue(42 as any);
     closeSyncSpy = vi.spyOn(fs, 'closeSync').mockImplementation(() => {});
 
     // readFileSync: return stdoutFileContent for the stdout file, state file, etc.
-    readFileSyncSpy = vi.spyOn(fs, 'readFileSync').mockImplementation(((p: string) => {
+    readFileSyncSpy = vi.spyOn(fs, 'readFileSync').mockImplementation(((
+      p: string,
+    ) => {
       if (p.endsWith('remote-control.stdout')) return stdoutFileContent;
       if (p.endsWith('remote-control.json')) {
         throw Object.assign(new Error('ENOENT'), { code: 'ENOENT' });
@@ -74,7 +85,8 @@ describe('remote-control', () => {
       spawnMock.mockReturnValue(proc);
 
       // Simulate URL appearing in stdout file on first poll
-      stdoutFileContent = 'Session URL: https://claude.ai/code?bridge=env_abc123\n';
+      stdoutFileContent =
+        'Session URL: https://claude.ai/code?bridge=env_abc123\n';
       vi.spyOn(process, 'kill').mockImplementation((() => true) as any);
 
       const result = await startRemoteControl('user1', 'tg:123', '/project');
@@ -101,8 +113,8 @@ describe('remote-control', () => {
 
       const spawnCall = spawnMock.mock.calls[0];
       const options = spawnCall[2];
-      // stdio should use file descriptors (numbers), not 'pipe'
+      // stdio[0] is 'pipe' so we can write 'y' to accept the prompt
-      expect(options.stdio[0]).toBe('ignore');
+      expect(options.stdio[0]).toBe('pipe');
       expect(typeof options.stdio[1]).toBe('number');
       expect(typeof options.stdio[2]).toBe('number');
     });
@@ -157,7 +169,9 @@ describe('remote-control', () => {
       spawnMock.mockReturnValueOnce(proc1).mockReturnValueOnce(proc2);
 
       // First start: process alive, URL found
-      const killSpy = vi.spyOn(process, 'kill').mockImplementation((() => true) as any);
+      const killSpy = vi
+        .spyOn(process, 'kill')
+        .mockImplementation((() => true) as any);
       stdoutFileContent = 'https://claude.ai/code?bridge=env_first\n';
       await startRemoteControl('user1', 'tg:123', '/project');
 
@@ -239,7 +253,9 @@ describe('remote-control', () => {
       const proc = createMockProcess(55555);
       spawnMock.mockReturnValue(proc);
       stdoutFileContent = 'https://claude.ai/code?bridge=env_stop\n';
-      const killSpy = vi.spyOn(process, 'kill').mockImplementation((() => true) as any);
+      const killSpy = vi
+        .spyOn(process, 'kill')
+        .mockImplementation((() => true) as any);
 
       await startRemoteControl('user1', 'tg:123', '/project');
 
@@ -337,7 +353,9 @@ describe('remote-control', () => {
         if (p.endsWith('remote-control.json')) return JSON.stringify(session);
         return '';
       }) as any);
-      const killSpy = vi.spyOn(process, 'kill').mockImplementation((() => true) as any);
+      const killSpy = vi
+        .spyOn(process, 'kill')
+        .mockImplementation((() => true) as any);
 
       restoreRemoteControl();
       expect(getActiveSession()).not.toBeNull();
@@ -365,13 +383,15 @@ describe('remote-control', () => {
 
       restoreRemoteControl();
 
-      return startRemoteControl('user2', 'tg:456', '/project').then((result) => {
+      return startRemoteControl('user2', 'tg:456', '/project').then(
+        (result) => {
           expect(result).toEqual({
             ok: true,
             url: 'https://claude.ai/code?bridge=env_restored',
           });
           expect(spawnMock).not.toHaveBeenCalled();
-      });
+        },
+      );
     });
   });
 });

src/remote-control.ts

@@ -111,7 +111,7 @@ export async function startRemoteControl(
   try {
     proc = spawn('claude', ['remote-control', '--name', 'NanoClaw Remote'], {
       cwd,
-      stdio: ['ignore', stdoutFd, stderrFd],
+      stdio: ['pipe', stdoutFd, stderrFd],
       detached: true,
     });
   } catch (err: any) {
@@ -120,6 +120,12 @@ export async function startRemoteControl(
     return { ok: false, error: `Failed to start: ${err.message}` };
   }
 
+  // Auto-accept the "Enable Remote Control?" prompt
+  if (proc.stdin) {
+    proc.stdin.write('y\n');
+    proc.stdin.end();
+  }
+
   // Close FDs in the parent — the child inherited copies
   fs.closeSync(stdoutFd);
   fs.closeSync(stderrFd);
@@ -196,9 +202,11 @@ export async function startRemoteControl(
   });
 }
 
-export function stopRemoteControl(): {
+export function stopRemoteControl():
+  | {
       ok: true;
-} | { ok: false; error: string } {
+    }
+  | { ok: false; error: string } {
   if (!activeSession) {
     return { ok: false, error: 'No active Remote Control session' };
   }