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.
36 lines
1.2 KiB
Python
36 lines
1.2 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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import subprocess
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def run_shell_command_on_host(command: str) -> str:
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"""Helper to run a shell command on the host and return the output."""
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try:
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result = subprocess.run(
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command,
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stdin=subprocess.DEVNULL,
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shell=True,
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check=True,
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capture_output=True,
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text=True,
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)
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return result.stdout.strip()
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except subprocess.CalledProcessError as e:
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# Log the error and stderr for better debugging
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error_message = (
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f"Command '{command}' failed with exit code {e.returncode}.\nStderr: {e.stderr.strip()}"
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)
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raise RuntimeError(error_message) from e
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