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fix(gateway): show friendly error when service is not installed

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Instead of an unhelpful CalledProcessError traceback when running
`hermes gateway start/stop/restart` without first installing the service,
check for the unit file and exit with an actionable install hint.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
h0tp-ftw 2026-04-26 00:35:59 -06:00 • committed by Teknium
parent c5789f4309
commit 8c8f95bc8e
2 changed files with 35 additions and 0 deletions
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23
tests/hermes_cli/test_gateway_service.py
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@ -141,6 +141,27 @@ class TestSystemdServiceRefresh:
assert ["systemctl", "--user", "daemon-reload"] in calls
class TestRequireServiceInstalled:
def test_exits_with_install_hint_when_unit_missing(self, tmp_path, monkeypatch, capsys):
unit_path = tmp_path / "hermes-gateway.service"
monkeypatch.setattr(gateway_cli, "get_systemd_unit_path", lambda system=False: unit_path)
with pytest.raises(SystemExit) as exc_info:
gateway_cli._require_service_installed("start")
assert exc_info.value.code == 1
out = capsys.readouterr().out
assert "not installed" in out
assert "hermes gateway install" in out
def test_passes_when_unit_exists(self, tmp_path, monkeypatch):
unit_path = tmp_path / "hermes-gateway.service"
unit_path.write_text("[Unit]\n", encoding="utf-8")
monkeypatch.setattr(gateway_cli, "get_systemd_unit_path", lambda system=False: unit_path)
gateway_cli._require_service_installed("start")
class TestGeneratedSystemdUnits:
def test_user_unit_avoids_recursive_execstop_and_uses_extended_stop_timeout(self):
unit = gateway_cli.generate_systemd_unit(system=False)
@ -521,6 +542,7 @@ class TestGatewaySystemServiceRouting:
calls = []
monkeypatch.setattr(gateway_cli, "_select_systemd_scope", lambda system=False: False)
monkeypatch.setattr(gateway_cli, "_require_service_installed", lambda action, system=False: None)
monkeypatch.setattr(gateway_cli, "refresh_systemd_unit_if_needed", lambda system=False: calls.append(("refresh", system)))
monkeypatch.setattr(
"gateway.status.get_running_pid",
@ -575,6 +597,7 @@ class TestGatewaySystemServiceRouting:
def test_systemd_restart_recovers_failed_planned_restart(self, monkeypatch, capsys):
monkeypatch.setattr(gateway_cli, "_select_systemd_scope", lambda system=False: False)
monkeypatch.setattr(gateway_cli, "_require_service_installed", lambda action, system=False: None)
monkeypatch.setattr(gateway_cli, "refresh_systemd_unit_if_needed", lambda system=False: None)
monkeypatch.setattr(
"gateway.status.read_runtime_status",