somew1nd
e984d17635
- Set stdin=subprocess.DEVNULL across runtime, client, and utility subprocess calls to avoid hijacking the parent process's stdin. - Run awake service initialization asynchronously on a daemon thread in MCP server startup. - Redirect logger header printing to stderr to ensure stdio JSON-RPC purity. - Add unit and lifecycle tests for MCP stdio protocol handshake and stdin isolation.
80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Universal Model Context Protocol (MCP) Server for ARTEMIS."""
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import datetime
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import os
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import sys
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# Ensure repository root is in sys.path
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PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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if PROJECT_ROOT not in sys.path:
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sys.path.insert(0, PROJECT_ROOT)
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# Debug logging and stderr tee to capture crashes without breaking MCP stdio JSON-RPC
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try:
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_mcp_log_dir = os.path.join(PROJECT_ROOT, "scratch")
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os.makedirs(_mcp_log_dir, exist_ok=True)
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with open(os.path.join(_mcp_log_dir, "mcp_launch_debug.log"), "a", encoding="utf-8") as _f:
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_f.write(
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f"[{datetime.datetime.now()}] Artemis MCP Server launched! sys.argv: {sys.argv}, CWD: {os.getcwd()}\n"
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)
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class StderrTee:
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def __init__(self, original, log_path):
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self.original = original
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self.log_file = open(log_path, "a", encoding="utf-8")
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def write(self, data):
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self.original.write(data)
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self.log_file.write(data)
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self.log_file.flush()
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def flush(self):
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self.original.flush()
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self.log_file.flush()
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sys.stderr = StderrTee(sys.stderr, os.path.join(_mcp_log_dir, "mcp_stderr.log"))
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except Exception:
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pass
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# 1. Import shared FastMCP instance
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from mcp_server.base import mcp
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# 2. Import tools to register them
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import mcp_server.tools # noqa: F401
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from artemis.runtime import shutdown_awake_service, start_awake_service
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import threading
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def main(transport: str = "stdio", host: str = "127.0.0.1", port: int = 8001):
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"""Main entrypoint to run the Artemis Mobile Agent MCP server."""
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threading.Thread(
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target=start_awake_service, daemon=True, name="artemis-awake-init"
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).start()
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try:
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if transport.lower() == "sse":
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mcp.run(transport="sse", host=host, port=port)
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else:
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mcp.run(transport="stdio")
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finally:
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shutdown_awake_service()
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if __name__ == "__main__":
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main()
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