From 4d0df004e93c19e2a10076d8a7b75ad6b3081051 Mon Sep 17 00:00:00 2001
From: Mario Zechner <badlogicgames@gmail.com>
Date: Wed, 25 Jun 2025 13:52:40 +0200
Subject: [PATCH] Minimal pty test

---
 web/fwd-test.ts | 202 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 202 insertions(+)
 create mode 100755 web/fwd-test.ts

diff --git a/web/fwd-test.ts b/web/fwd-test.ts
new file mode 100755
index 00000000..7468f7b7
--- /dev/null
+++ b/web/fwd-test.ts
@@ -0,0 +1,202 @@
+#!/usr/bin/env pnpm exec tsx --no-deprecation
+
+/**
+ * Minimal test script for node-pty
+ * Tests PTY spawning, terminal raw mode, stdin/stdout forwarding
+ */
+
+import * as pty from '@homebridge/node-pty-prebuilt-multiarch';
+import { which } from '@homebridge/node-pty-prebuilt-multiarch/lib/utils';
+import * as fs from 'fs';
+import * as path from 'path';
+import * as os from 'os';
+
+// Terminal state restoration
+let originalStdinRawMode = false;
+let ptyProcess: pty.IPty | null = null;
+
+/**
+ * Clean up and restore terminal state
+ */
+function cleanup() {
+  // Restore terminal mode
+  if (process.stdin.isTTY && originalStdinRawMode) {
+    try {
+      process.stdin.setRawMode(false);
+    } catch (e) {
+      // Ignore errors
+    }
+  }
+  
+  // Kill PTY process
+  if (ptyProcess) {
+    try {
+      ptyProcess.kill();
+    } catch (e) {
+      // Process might already be dead
+    }
+    ptyProcess = null;
+  }
+  
+  // Clear line and show cursor
+  process.stdout.write('\r\n\x1b[?25h');
+}
+
+/**
+ * Resolve command using shell-like logic
+ */
+function resolveCommand(args: string[]): { command: string; args: string[] } {
+  if (args.length === 0) {
+    throw new Error('No command specified');
+  }
+
+  const [cmd, ...cmdArgs] = args;
+
+  // Try to find the command in PATH
+  try {
+    const resolved = which(cmd);
+    if (resolved) {
+      return { command: resolved, args: cmdArgs };
+    }
+  } catch (e) {
+    // Command not found in PATH
+  }
+
+  // Check if it's a relative path that exists
+  if (cmd.includes('/') || cmd.includes('\\')) {
+    const fullPath = path.resolve(cmd);
+    if (fs.existsSync(fullPath)) {
+      return { command: fullPath, args: cmdArgs };
+    }
+  }
+
+  // Check common shell aliases
+  const shellAliases: Record<string, string[]> = {
+    'll': ['ls', '-la'],
+    'la': ['ls', '-la'],
+    'l': ['ls', '-l'],
+  };
+
+  if (shellAliases[cmd]) {
+    const [aliasCmd, ...aliasArgs] = shellAliases[cmd];
+    return resolveCommand([aliasCmd, ...aliasArgs, ...cmdArgs]);
+  }
+
+  // Fallback to original command and let PTY handle it
+  return { command: cmd, args: cmdArgs };
+}
+
+/**
+ * Main function
+ */
+async function main() {
+  // Parse command line arguments
+  const args = process.argv.slice(2);
+  
+  if (args.length === 0 || args[0] === '--help' || args[0] === '-h') {
+    console.log('Usage: ./fwd-test.ts <command> [args...]');
+    console.log('');
+    console.log('Examples:');
+    console.log('  ./fwd-test.ts bash');
+    console.log('  ./fwd-test.ts ls -la');
+    console.log('  ./fwd-test.ts python3 -i');
+    process.exit(0);
+  }
+
+  try {
+    // Resolve command
+    const { command, args: resolvedArgs } = resolveCommand(args);
+    console.log(`Spawning: ${command} ${resolvedArgs.join(' ')}`);
+    console.log(`Working directory: ${process.cwd()}`);
+    console.log('');
+
+    // Get terminal size
+    const cols = process.stdout.columns || 80;
+    const rows = process.stdout.rows || 24;
+
+    // Spawn PTY
+    ptyProcess = pty.spawn(command, resolvedArgs, {
+      name: 'xterm-256color',
+      cols,
+      rows,
+      cwd: process.cwd(),
+      env: {
+        ...process.env,
+        TERM: 'xterm-256color',
+      },
+    });
+
+    console.log(`PTY spawned with PID: ${ptyProcess.pid}`);
+    console.log('Press Ctrl+C to exit\n');
+
+    // Forward PTY output to stdout
+    ptyProcess.onData((data: string) => {
+      process.stdout.write(data);
+    });
+
+    // Handle PTY exit
+    ptyProcess.onExit(({ exitCode, signal }) => {
+      console.log(`\nProcess exited with code ${exitCode}${signal ? ` (signal: ${signal})` : ''}`);
+      cleanup();
+      process.exit(exitCode || 0);
+    });
+
+    // Set terminal to raw mode
+    if (process.stdin.isTTY) {
+      originalStdinRawMode = process.stdin.isRaw;
+      process.stdin.setRawMode(true);
+    }
+    process.stdin.resume();
+
+    // Forward stdin to PTY
+    process.stdin.on('data', (data: Buffer) => {
+      if (ptyProcess) {
+        ptyProcess.write(data.toString());
+      }
+    });
+
+    // Handle terminal resize
+    process.stdout.on('resize', () => {
+      if (ptyProcess) {
+        const newCols = process.stdout.columns || 80;
+        const newRows = process.stdout.rows || 24;
+        ptyProcess.resize(newCols, newRows);
+      }
+    });
+
+    // Handle signals for cleanup
+    const signals: NodeJS.Signals[] = ['SIGINT', 'SIGTERM', 'SIGQUIT'];
+    signals.forEach(signal => {
+      process.on(signal, () => {
+        console.log(`\nReceived ${signal}, cleaning up...`);
+        cleanup();
+        process.exit(1);
+      });
+    });
+
+    // Handle uncaught errors
+    process.on('uncaughtException', (error) => {
+      console.error('\nUncaught exception:', error);
+      cleanup();
+      process.exit(1);
+    });
+
+    process.on('unhandledRejection', (reason) => {
+      console.error('\nUnhandled rejection:', reason);
+      cleanup();
+      process.exit(1);
+    });
+
+  } catch (error) {
+    console.error('Error:', error);
+    cleanup();
+    process.exit(1);
+  }
+}
+
+// Run main function
+main().catch((error) => {
+  console.error('Fatal error:', error);
+  cleanup();
+  process.exit(1);
+});
\ No newline at end of file