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43 changes: 32 additions & 11 deletions gateway/status.py
Original file line number Diff line number Diff line change
Expand Up @@ -188,8 +188,8 @@ def _write_json_file(path: Path, payload: dict[str, Any]) -> None:
path.write_text(json.dumps(payload))


def _read_pid_record() -> Optional[dict]:
pid_path = _get_pid_path()
def _read_pid_record(pid_path: Optional[Path] = None) -> Optional[dict]:
pid_path = pid_path or _get_pid_path()
if not pid_path.exists():
return None

Expand All @@ -212,6 +212,18 @@ def _read_pid_record() -> Optional[dict]:
return None


def _cleanup_invalid_pid_path(pid_path: Path, *, cleanup_stale: bool) -> None:
if not cleanup_stale:
return
try:
if pid_path == _get_pid_path():
remove_pid_file()
else:
pid_path.unlink(missing_ok=True)
except Exception:
pass


def write_pid_file() -> None:
"""Write the current process PID and metadata to the gateway PID file."""
_write_json_file(_get_pid_path(), _build_pid_record())
Expand Down Expand Up @@ -413,43 +425,52 @@ def release_all_scoped_locks() -> int:
return removed


def get_running_pid() -> Optional[int]:
def get_running_pid(
pid_path: Optional[Path] = None,
*,
cleanup_stale: bool = True,
) -> Optional[int]:
"""Return the PID of a running gateway instance, or ``None``.

Checks the PID file and verifies the process is actually alive.
Cleans up stale PID files automatically.
"""
record = _read_pid_record()
resolved_pid_path = pid_path or _get_pid_path()
record = _read_pid_record(resolved_pid_path)
if not record:
remove_pid_file()
_cleanup_invalid_pid_path(resolved_pid_path, cleanup_stale=cleanup_stale)
return None

try:
pid = int(record["pid"])
except (KeyError, TypeError, ValueError):
remove_pid_file()
_cleanup_invalid_pid_path(resolved_pid_path, cleanup_stale=cleanup_stale)
return None

try:
os.kill(pid, 0) # signal 0 = existence check, no actual signal sent
except (ProcessLookupError, PermissionError):
remove_pid_file()
_cleanup_invalid_pid_path(resolved_pid_path, cleanup_stale=cleanup_stale)
return None

recorded_start = record.get("start_time")
current_start = _get_process_start_time(pid)
if recorded_start is not None and current_start is not None and current_start != recorded_start:
remove_pid_file()
_cleanup_invalid_pid_path(resolved_pid_path, cleanup_stale=cleanup_stale)
return None

if not _looks_like_gateway_process(pid):
if not _record_looks_like_gateway(record):
remove_pid_file()
_cleanup_invalid_pid_path(resolved_pid_path, cleanup_stale=cleanup_stale)
return None

return pid


def is_gateway_running() -> bool:
def is_gateway_running(
pid_path: Optional[Path] = None,
*,
cleanup_stale: bool = True,
) -> bool:
"""Check if the gateway daemon is currently running."""
return get_running_pid() is not None
return get_running_pid(pid_path, cleanup_stale=cleanup_stale) is not None
49 changes: 14 additions & 35 deletions hermes_cli/dump.py
Original file line number Diff line number Diff line change
Expand Up @@ -43,41 +43,20 @@ def _redact(value: str) -> str:

def _gateway_status() -> str:
"""Return a short gateway status string."""
if sys.platform.startswith("linux"):
from hermes_constants import is_container
if is_container():
try:
from hermes_cli.gateway import find_gateway_pids
pids = find_gateway_pids()
if pids:
return f"running (docker, pid {pids[0]})"
return "stopped (docker)"
except Exception:
return "stopped (docker)"
try:
from hermes_cli.gateway import get_service_name
svc = get_service_name()
except Exception:
svc = "hermes-gateway"
try:
r = subprocess.run(
["systemctl", "--user", "is-active", svc],
capture_output=True, text=True, timeout=5,
)
return "running (systemd)" if r.stdout.strip() == "active" else "stopped"
except Exception:
return "unknown"
elif sys.platform == "darwin":
try:
from hermes_cli.gateway import get_launchd_label
r = subprocess.run(
["launchctl", "list", get_launchd_label()],
capture_output=True, text=True, timeout=5,
)
return "loaded (launchd)" if r.returncode == 0 else "not loaded"
except Exception:
return "unknown"
return "N/A"
try:
from hermes_cli.gateway import get_gateway_runtime_snapshot

snapshot = get_gateway_runtime_snapshot()
if snapshot.running:
mode = snapshot.manager
if snapshot.has_process_service_mismatch:
mode = "manual"
return f"running ({mode}, pid {snapshot.gateway_pids[0]})"
if snapshot.service_installed and not snapshot.service_running:
return f"stopped ({snapshot.manager})"
return f"stopped ({snapshot.manager})"
except Exception:
return "unknown" if sys.platform.startswith(("linux", "darwin")) else "N/A"


def _count_skills(hermes_home: Path) -> int:
Expand Down
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