135 lines
4.0 KiB
Python
135 lines
4.0 KiB
Python
"""Qwen Code command construction and exact runtime ownership."""
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from __future__ import annotations
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from dataclasses import dataclass
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import os
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import sys
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from typing import Optional, Tuple
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@dataclass(frozen=True)
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class QwenRuntimeReference:
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agent_id: str
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script_path: str
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def same_qwen_path(left: str, right: str) -> bool:
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return os.path.normcase(os.path.abspath(left)) == os.path.normcase(
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os.path.abspath(right)
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)
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def same_qwen_agent_id(left: str, right: str) -> bool:
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return os.path.normcase(left) == os.path.normcase(right)
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def _quote_posix(value: str) -> str:
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return "'" + value.replace("'", "'\"'\"'") + "'"
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def _quote_powershell(value: str) -> str:
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return "'" + value.replace("'", "''") + "'"
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def build_qwen_command(script_path: str) -> str:
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if not os.path.isabs(sys.executable) or not os.path.isabs(script_path):
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raise ValueError(
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"Qwen Code hook commands require absolute executable and script paths"
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)
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invocation = (
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f"{_quote_powershell(sys.executable)} {_quote_powershell(script_path)}"
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if os.name == "nt"
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else f"{_quote_posix(sys.executable)} {_quote_posix(script_path)}"
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)
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return f"& {invocation}; exit $LASTEXITCODE" if os.name == "nt" else invocation
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def _read_posix_argument(command: str, start: int) -> Optional[Tuple[str, int]]:
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if start >= len(command) or command[start] != "'":
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return None
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apostrophe = "'\"'\"'"
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value = ""
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index = start + 1
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while index < len(command):
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if command.startswith(apostrophe, index):
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value += "'"
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index += len(apostrophe)
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continue
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if command[index] == "'":
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return value, index + 1
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value += command[index]
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index += 1
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return None
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def _parse_posix_command(command: str) -> Optional[Tuple[str, str]]:
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executable = _read_posix_argument(command, 0)
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if executable is None or executable[1] >= len(command):
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return None
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if command[executable[1]] != " ":
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return None
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script = _read_posix_argument(command, executable[1] + 1)
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if script is None or script[1] != len(command):
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return None
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return executable[0], script[0]
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def _read_powershell_argument(
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command: str, start: int
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) -> Optional[Tuple[str, int]]:
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if start >= len(command) or command[start] != "'":
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return None
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value = ""
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index = start + 1
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while index < len(command):
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if command[index] != "'":
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value += command[index]
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index += 1
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continue
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if index + 1 < len(command) and command[index + 1] == "'":
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value += "'"
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index += 2
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continue
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return value, index + 1
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return None
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def _parse_powershell_command(command: str) -> Optional[Tuple[str, str]]:
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if not command.startswith("& "):
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return None
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executable = _read_powershell_argument(command, 2)
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if executable is None or executable[1] >= len(command):
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return None
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if command[executable[1]] != " ":
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return None
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script = _read_powershell_argument(command, executable[1] + 1)
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if script is None or command[script[1] :] != "; exit $LASTEXITCODE":
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return None
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return executable[0], script[0]
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def qwen_runtime_reference(
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command: str, script_name: str
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) -> Optional[QwenRuntimeReference]:
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parsed = (
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_parse_powershell_command(command)
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if os.name == "nt"
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else _parse_posix_command(command)
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)
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if (
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parsed is None
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or not same_qwen_path(parsed[0], sys.executable)
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or not os.path.isabs(parsed[1])
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or os.path.basename(parsed[1]) != script_name
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):
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return None
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agent_directory = os.path.dirname(parsed[1])
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runtime_root = os.path.join(os.path.expanduser("~"), ".elydora")
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if not same_qwen_path(os.path.dirname(agent_directory), runtime_root):
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return None
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agent_id = os.path.basename(agent_directory)
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if agent_id in {"", ".", ".."}:
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return None
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return QwenRuntimeReference(agent_id, parsed[1])
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