95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
# Copyright 2026 zhaoxi826
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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 importlib.util
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import os
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import sys
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from typing import Callable, Dict, List
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from kilostar.utils.logger import get_logger
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logger = get_logger("get_tool")
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_tool_cache: Dict[str, Callable] = {}
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def _get_tool_func(tool_name: str) -> Callable | None:
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"""按名字从 ``kilostar/plugin/tool_plugin/<tool_name>/__init__.py`` 中加载工具函数。
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加载成功后会被缓存到模块级 ``_tool_cache``；找不到目录、找不到同名函数或
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导入失败都会记录日志并返回 ``None``。
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"""
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func = _tool_cache.get(tool_name, None)
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if func:
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return func
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tool_plugin_dir = os.path.join(
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os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
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"plugin",
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"tool_plugin",
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tool_name,
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)
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if not os.path.exists(tool_plugin_dir) or not os.path.isdir(tool_plugin_dir):
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logger.error(f"Tool directory not found: {tool_plugin_dir}")
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return None
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init_file = os.path.join(tool_plugin_dir, "__init__.py")
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if not os.path.exists(init_file):
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logger.error(f"Tool init file not found: {init_file}")
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return None
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try:
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module_name = f"kilostar.plugin.tool_plugin.{tool_name}"
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spec = importlib.util.spec_from_file_location(module_name, init_file)
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if spec is None or spec.loader is None:
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logger.error(f"Failed to create spec for {module_name}")
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return None
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module = importlib.util.module_from_spec(spec)
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sys.modules[module_name] = module
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spec.loader.exec_module(module)
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func = getattr(module, tool_name, None)
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if not callable(func):
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logger.error(
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f"Tool function '{tool_name}' not found or not callable in {module_name}"
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)
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return None
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_tool_cache[tool_name] = func
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return func
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except Exception as e:
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logger.error(f"Failed to load module {module_name}: {e}")
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return None
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def del_tool_cache(tool_name: str) -> None:
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"""从内存缓存中移除某个工具，下次调用 ``load_tools_from_list`` 会重新从磁盘加载。"""
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if tool_name in _tool_cache:
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del _tool_cache[tool_name]
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def load_tools_from_list(tool_names: List[str] | None) -> List[Callable]:
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"""批量加载工具：传入工具名列表，返回成功加载到的函数对象列表（失败项被跳过）。"""
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if not tool_names:
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return []
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tool_list = []
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for tool_name in tool_names:
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tool_func = _get_tool_func(tool_name)
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if tool_func:
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tool_list.append(tool_func)
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return tool_list
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