Fix: Avoid traceback when ctr+c is used to finish the tunnel

src/sbx/cli.py

@@ -5,6 +5,7 @@
 import re
 import shlex
 import shutil
+import signal
 import sqlite3
 import subprocess
 import sys
@@ -2214,6 +2215,9 @@ def main(argv: Sequence[str] | None = None) -> int:
             return 2
     try:
         return args.func(args)
+    except KeyboardInterrupt:
+        # Shell convention: signal exits are 128 + signal number.
+        return 128 + signal.SIGINT
     except ConfigError as exc:
         print(f"sbx: {exc}", file=sys.stderr)
         return 2

tests/test_cli.py

@@ -1431,6 +1431,15 @@ def test_network_forward_accepts_explicit_name(monkeypatch: pytest.MonkeyPatch)
     }
 
 
+def test_network_forward_ctrl_c_returns_130(monkeypatch: pytest.MonkeyPatch) -> None:
+    def interrupted(vm_id: str, forward: tuple[str, int, int]) -> int:
+        raise KeyboardInterrupt
+
+    monkeypatch.setattr(cli.network, "_foreground_port_forward", interrupted)
+
+    assert cli.main(["network", "forward", "vm2", "3005"]) == 130
+
+
 def test_network_commands_default_to_configured_name(
     monkeypatch: pytest.MonkeyPatch,
     tmp_path: Path,