nonebot2/nonebot/__init__.py
2021-02-19 15:15:46 +08:00

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"""
快捷导入
========
为方便使用,``nonebot`` 模块从子模块导入了部分内容
- ``on_message`` => ``nonebot.plugin.on_message``
- ``on_notice`` => ``nonebot.plugin.on_notice``
- ``on_request`` => ``nonebot.plugin.on_request``
- ``on_metaevent`` => ``nonebot.plugin.on_metaevent``
- ``on_startswith`` => ``nonebot.plugin.on_startswith``
- ``on_endswith`` => ``nonebot.plugin.on_endswith``
- ``on_keyword`` => ``nonebot.plugin.on_keyword``
- ``on_command`` => ``nonebot.plugin.on_command``
- ``on_shell_command`` => ``nonebot.plugin.on_shell_command``
- ``on_regex`` => ``nonebot.plugin.on_regex``
- ``CommandGroup`` => ``nonebot.plugin.CommandGroup``
- ``Matchergroup`` => ``nonebot.plugin.MatcherGroup``
- ``load_plugin`` => ``nonebot.plugin.load_plugin``
- ``load_plugins`` => ``nonebot.plugin.load_plugins``
- ``load_all_plugins`` => ``nonebot.plugin.load_all_plugins``
- ``load_builtin_plugins`` => ``nonebot.plugin.load_builtin_plugins``
- ``get_plugin`` => ``nonebot.plugin.get_plugin``
- ``get_loaded_plugins`` => ``nonebot.plugin.get_loaded_plugins``
- ``export`` => ``nonebot.plugin.export``
- ``require`` => ``nonebot.plugin.require``
"""
import importlib
import pkg_resources
from typing import Dict, Type, Optional
from nonebot.adapters import Bot
from nonebot.drivers import Driver
from nonebot.utils import escape_tag
from nonebot.config import Env, Config
from nonebot.log import logger, default_filter
_dist: pkg_resources.Distribution = pkg_resources.get_distribution("nonebot2")
__version__ = _dist.version
VERSION = _dist.parsed_version
_driver: Optional[Driver] = None
def get_driver() -> Driver:
"""
:说明:
获取全局 Driver 对象。可用于在计划任务的回调中获取当前 Driver 对象。
:返回:
* ``Driver``: 全局 Driver 对象
:异常:
* ``ValueError``: 全局 Driver 对象尚未初始化 (nonebot.init 尚未调用)
:用法:
.. code-block:: python
driver = nonebot.get_driver()
"""
if _driver is None:
raise ValueError("NoneBot has not been initialized.")
return _driver
def get_app():
"""
:说明:
获取全局 Driver 对应 Server App 对象。
:返回:
* ``Any``: Server App 对象
:异常:
* ``ValueError``: 全局 Driver 对象尚未初始化 (nonebot.init 尚未调用)
:用法:
.. code-block:: python
app = nonebot.get_app()
"""
driver = get_driver()
return driver.server_app
def get_asgi():
"""
:说明:
获取全局 Driver 对应 Asgi 对象。
:返回:
* ``Any``: Asgi 对象
:异常:
* ``ValueError``: 全局 Driver 对象尚未初始化 (nonebot.init 尚未调用)
:用法:
.. code-block:: python
asgi = nonebot.get_asgi()
"""
driver = get_driver()
return driver.asgi
def get_bots() -> Dict[str, Bot]:
"""
:说明:
获取所有通过 ws 连接 NoneBot 的 Bot 对象。
:返回:
* ``Dict[str, Bot]``: 一个以字符串 ID 为键Bot 对象为值的字典
:异常:
* ``ValueError``: 全局 Driver 对象尚未初始化 (nonebot.init 尚未调用)
:用法:
.. code-block:: python
bots = nonebot.get_bots()
"""
driver = get_driver()
return driver.bots
def init(*, _env_file: Optional[str] = None, **kwargs):
"""
:说明:
初始化 NoneBot 以及 全局 Driver 对象。
NoneBot 将会从 .env 文件中读取环境信息,并使用相应的 env 文件配置。
你也可以传入自定义的 _env_file 来指定 NoneBot 从该文件读取配置。
:参数:
* ``_env_file: Optional[str]``: 配置文件名,默认从 .env.{env_name} 中读取配置
* ``**kwargs``: 任意变量,将会存储到 Config 对象里
:返回:
- ``None``
:用法:
.. code-block:: python
nonebot.init(database=Database(...))
"""
global _driver
if not _driver:
logger.info("NoneBot is initializing...")
env = Env()
logger.opt(
colors=True).info(f"Current <y><b>Env: {env.environment}</b></y>")
config = Config(**kwargs,
_common_config=env.dict(),
_env_file=_env_file or f".env.{env.environment}")
default_filter.level = "DEBUG" if config.debug else "INFO"
logger.opt(colors=True).debug(
f"Loaded <y><b>Config</b></y>: {escape_tag(str(config.dict()))}")
DriverClass: Type[Driver] = getattr(
importlib.import_module(config.driver), "Driver")
_driver = DriverClass(env, config)
def run(host: Optional[str] = None,
port: Optional[int] = None,
*args,
**kwargs):
"""
:说明:
启动 NoneBot即运行全局 Driver 对象。
:参数:
* ``host: Optional[str]``: 主机名IP若不传入则使用配置文件中指定的值
* ``port: Optional[int]``: 端口,若不传入则使用配置文件中指定的值
* ``*args``: 传入 Driver.run 的位置参数
* ``**kwargs``: 传入 Driver.run 的命名参数
:返回:
- ``None``
:用法:
.. code-block:: python
nonebot.run(host="127.0.0.1", port=8080)
"""
logger.info("Running NoneBot...")
get_driver().run(host, port, *args, **kwargs)
from nonebot.plugin import on_message, on_notice, on_request, on_metaevent, CommandGroup, MatcherGroup
from nonebot.plugin import on_startswith, on_endswith, on_keyword, on_command, on_shell_command, on_regex
from nonebot.plugin import load_plugin, load_plugins, load_all_plugins, load_builtin_plugins
from nonebot.plugin import export, require, get_plugin, get_loaded_plugins