Files
Artemis-Eapil/mcp_server/utils/trace_store.py
T
somew1nd c2c90a6378 feat: add multi-device concurrency, server lifecycle CLI, and unified execution stream
- Implement DevicePool and DeviceExecutionLock concurrency modes (per-device FIFO vs global serialization)
- Extend ArtemisClient SDK and CLI with explicit device targeting and concurrency strategy configuration
- Add server lifecycle management (artemis restart, stop, status) with cross-platform PID discovery
- Update MCP server tools to support multi-device dispatch, trace tagging, and per-device execution
- Enhance Showcase UI with step-by-step visual replay, playback speed controls, and device serial badges
- Add comprehensive unit test coverage and edge-case verification scripts
2026-08-26 15:53:14 -07:00

125 lines
3.7 KiB
Python

# Copyright 2026 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Trace storage and lifecycle management for MCP background automation tasks."""
import json
import os
import time
from typing import Any
try:
from artemis.config.paths import get_traces_dir
TRACES_DIR = str(get_traces_dir())
except Exception:
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
TRACES_DIR = os.path.join(PROJECT_ROOT, "traces")
def get_trace_dir(trace_id: str) -> str:
"""Returns the absolute path to the directory for a given trace_id."""
return os.path.join(TRACES_DIR, trace_id)
def get_status_path(trace_id: str) -> str:
"""Returns the absolute path to the status.json file for a given trace_id."""
return os.path.join(get_trace_dir(trace_id), "status.json")
def init_trace(
trace_id: str,
task_desc: str,
model: str,
conversation_id: str,
device_serial: str | None = None,
) -> dict[str, Any]:
"""Initializes the trace directory and creates the initial status.json file."""
trace_dir = get_trace_dir(trace_id)
os.makedirs(trace_dir, exist_ok=True)
status_data: dict[str, Any] = {
"trace_id": trace_id,
"task_desc": task_desc,
"model": model,
"conversation_id": conversation_id,
"status": "running",
"device_serial": device_serial,
"start_time": time.time(),
"end_time": None,
"error": None,
"result": None,
}
write_status(trace_id, status_data)
return status_data
def read_status(trace_id: str) -> dict[str, Any] | None:
"""Reads and returns the status.json for a given trace_id, or None if it doesn't exist."""
path = get_status_path(trace_id)
if not os.path.exists(path):
return None
try:
with open(path, encoding="utf-8") as f:
return json.load(f)
except Exception:
return None
def write_status(trace_id: str, data: dict[str, Any]) -> None:
"""Writes the given status dictionary to the trace's status.json."""
path = get_status_path(trace_id)
os.makedirs(os.path.dirname(path), exist_ok=True)
with open(path, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2, ensure_ascii=False)
def update_trace_status(
trace_id: str,
status: str,
error: str | None = None,
result: Any | None = None,
device_serial: str | None = None,
) -> dict[str, Any] | None:
"""Updates specific fields of the status.json for a given trace_id."""
data = read_status(trace_id)
if not data:
return None
data["status"] = status
if status in ("completed", "failed", "cancelled"):
data["end_time"] = time.time()
if error is not None:
data["error"] = error
if result is not None:
data["result"] = result
if device_serial is not None:
data["device_serial"] = device_serial
write_status(trace_id, data)
return data
def update_trace_device_serial(trace_id: str, device_serial: str) -> dict[str, Any] | None:
"""Updates the device_serial field of the status.json for a given trace_id."""
data = read_status(trace_id)
if not data:
return None
data["device_serial"] = device_serial
write_status(trace_id, data)
return data