mirror of
https://github.com/NousResearch/hermes-agent.git
synced 2026-07-21 16:18:55 +00:00
3f84b7a163
Adds --once to /model across CLI, TUI, and gateway: switch model for the next turn only, restoring the previous model in a finally block so success, exception, and interrupt all revert. Parsing extends parse_model_flags_detailed(); resolve_persist_behavior() treats --once as a persistence opt-out; --global + --once is rejected. Salvaged from PR #29923 (image-generation lane split to #59815 per review; conflict resolution against current main by the maintainers).
142 lines
4.3 KiB
Python
142 lines
4.3 KiB
Python
from __future__ import annotations
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from types import SimpleNamespace
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from hermes_cli.model_switch import ModelSwitchResult
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class _FakeAgent:
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def __init__(self):
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self.calls = []
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self.model = "old/model"
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self.provider = "openrouter"
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def switch_model(self, **kwargs):
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self.calls.append(kwargs)
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self.model = kwargs["new_model"]
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self.provider = kwargs["new_provider"]
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class _StubCLI:
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model = "old/model"
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provider = "openrouter"
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requested_provider = "openrouter"
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api_key = "sk-old"
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_explicit_api_key = "sk-old"
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base_url = "https://openrouter.ai/api/v1"
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_explicit_base_url = "https://openrouter.ai/api/v1"
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api_mode = "chat_completions"
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agent = None
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_pending_model_switch_note = None
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_pending_one_turn_model_restore = None
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def _confirm_expensive_model_switch(self, result):
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return True
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def test_cli_model_once_records_restore_and_does_not_persist(monkeypatch):
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import cli as cli_mod
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stub = _StubCLI()
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stub.agent = _FakeAgent()
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stub._snapshot_model_runtime = cli_mod.HermesCLI._snapshot_model_runtime.__get__(stub)
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printed = []
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monkeypatch.setattr(cli_mod, "_cprint", lambda s, *a, **k: printed.append(str(s)))
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monkeypatch.setattr(cli_mod, "save_config_value", lambda *a, **k: (_ for _ in ()).throw(AssertionError("should not persist")))
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monkeypatch.setattr(
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"hermes_cli.inventory.load_picker_context",
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lambda: SimpleNamespace(
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user_providers=None,
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custom_providers=None,
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with_overrides=lambda **_: SimpleNamespace(user_providers=None, custom_providers=None),
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),
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)
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monkeypatch.setattr(
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"hermes_cli.model_switch.switch_model",
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lambda **_: ModelSwitchResult(
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success=True,
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new_model="claude-sonnet-4.6",
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target_provider="anthropic",
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api_key="sk-ant",
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base_url="https://api.anthropic.com",
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api_mode="anthropic_messages",
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provider_label="Anthropic",
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),
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)
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monkeypatch.setattr("hermes_cli.model_switch.resolve_display_context_length", lambda *a, **k: None)
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cli_mod.HermesCLI._handle_model_switch(
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stub,
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"/model claude-sonnet-4.6 --provider anthropic --once",
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)
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assert stub.model == "claude-sonnet-4.6"
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assert stub.provider == "anthropic"
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assert stub.agent.calls[-1]["new_model"] == "claude-sonnet-4.6"
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assert stub._pending_one_turn_model_restore["model"] == "old/model"
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assert "next turn only" in printed[-1]
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def test_cli_restore_model_runtime_snapshot_restores_agent():
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import cli as cli_mod
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stub = _StubCLI()
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stub.agent = _FakeAgent()
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snapshot = {
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"model": "old/model",
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"provider": "openrouter",
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"requested_provider": "openrouter",
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"api_key": "sk-old",
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"explicit_api_key": "sk-old",
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"base_url": "https://openrouter.ai/api/v1",
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"explicit_base_url": "https://openrouter.ai/api/v1",
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"api_mode": "chat_completions",
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}
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cli_mod.HermesCLI._restore_model_runtime_snapshot(stub, snapshot)
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assert stub.model == "old/model"
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assert stub.provider == "openrouter"
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assert stub.agent.calls[-1]["new_model"] == "old/model"
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def test_cli_restore_model_runtime_prefers_primary_runtime():
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import cli as cli_mod
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class Agent(_FakeAgent):
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_primary_runtime = None
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_rate_limited_until = 123
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def __init__(self):
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super().__init__()
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self.model = "temp/model"
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self.provider = "anthropic"
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def _restore_primary_runtime(self):
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self.model = self._primary_runtime["model"]
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self.provider = self._primary_runtime["provider"]
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return True
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stub = _StubCLI()
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stub.agent = Agent()
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snapshot = {
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"model": "old/model",
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"provider": "openrouter",
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"requested_provider": "openrouter",
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"api_key": "sk-old",
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"explicit_api_key": "sk-old",
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"base_url": "",
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"explicit_base_url": "",
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"api_mode": "chat_completions",
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"agent_primary_runtime": {
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"model": "old/model",
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"provider": "openrouter",
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},
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}
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cli_mod.HermesCLI._restore_model_runtime_snapshot(stub, snapshot)
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assert stub.agent.model == "old/model"
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assert stub.agent.provider == "openrouter"
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assert stub.agent.calls == []
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