nonebot2/nonebot/__init__.py
2022-01-12 18:53:30 +08:00

280 lines
8.4 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

"""
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_from_json` => `nonebot.plugin.load_from_json`
- `load_from_toml` => `nonebot.plugin.load_from_toml`
- `load_builtin_plugin` => `nonebot.plugin.load_builtin_plugin`
- `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
from typing import Any, Dict, Type, Optional
import pkg_resources
from nonebot.adapters import Bot
from nonebot.utils import escape_tag
from nonebot.config import Env, Config
from nonebot.log import logger, default_filter
from nonebot.drivers import Driver, ReverseDriver, combine_driver
try:
_dist: pkg_resources.Distribution = pkg_resources.get_distribution("nonebot2")
__version__ = _dist.version
VERSION = _dist.parsed_version
except pkg_resources.DistributionNotFound: # pragma: no cover
__version__ = None
VERSION = None
_driver: Optional[Driver] = None
def get_driver() -> Driver:
"""
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:
```python
driver = nonebot.get_driver()
```
"""
if _driver is None:
raise ValueError("NoneBot has not been initialized.")
return _driver
def get_app() -> Any:
"""
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:
```python
app = nonebot.get_app()
```
"""
driver = get_driver()
assert isinstance(
driver, ReverseDriver
), "app object is only available for reverse driver"
return driver.server_app
def get_asgi() -> Any:
"""
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:
```python
asgi = nonebot.get_asgi()
```
"""
driver = get_driver()
assert isinstance(
driver, ReverseDriver
), "asgi object is only available for reverse driver"
return driver.asgi
def get_bot(self_id: Optional[str] = None) -> Bot:
"""
当提供 self_id 时,此函数是 get_bots()[self_id] 的简写;当不提供时,返回一个 Bot。
参数:
self_id: 用来识别 Bot 的 ID
返回:
Bot: Bot 对象
异常:
KeyError: 对应 ID 的 Bot 不存在
ValueError: 全局 Driver 对象尚未初始化 (nonebot.init 尚未调用)
ValueError: 没有传入 ID 且没有 Bot 可用
用法:
```python
assert nonebot.get_bot('12345') == nonebot.get_bots()['12345']
another_unspecified_bot = nonebot.get_bot()
```
"""
bots = get_bots()
if self_id is not None:
return bots[self_id]
for bot in bots.values():
return bot
raise ValueError("There are no bots to get.")
def get_bots() -> Dict[str, Bot]:
"""
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:
```python
bots = nonebot.get_bots()
```
"""
driver = get_driver()
return driver.bots
def _resolve_dot_notation(
obj_str: str, default_attr: str, default_prefix: Optional[str] = None
) -> Any:
modulename, _, cls = obj_str.partition(":")
if default_prefix is not None and modulename.startswith("~"):
modulename = default_prefix + modulename[1:]
module = importlib.import_module(modulename)
if not cls:
return getattr(module, default_attr)
instance = module
for attr_str in cls.split("."):
instance = getattr(instance, attr_str)
return instance
def _resolve_combine_expr(obj_str: str) -> Type[Driver]:
drivers = obj_str.split("+")
DriverClass = _resolve_dot_notation(
drivers[0], "Driver", default_prefix="nonebot.drivers."
)
if len(drivers) == 1:
logger.trace(f"Detected driver {DriverClass} with no mixins.")
return DriverClass
mixins = [
_resolve_dot_notation(mixin, "Mixin", default_prefix="nonebot.drivers.")
for mixin in drivers[1:]
]
logger.trace(f"Detected driver {DriverClass} with mixins {mixins}.")
return combine_driver(DriverClass, *mixins)
def init(*, _env_file: Optional[str] = None, **kwargs):
"""
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: 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
用法:
```python
nonebot.init(database=Database(...))
```
"""
global _driver
if not _driver:
logger.success("NoneBot is initializing...")
env = Env()
config = Config(
**kwargs,
_common_config=env.dict(),
_env_file=_env_file or f".env.{env.environment}",
)
default_filter.level = config.log_level
logger.opt(colors=True).info(
f"Current <y><b>Env: {escape_tag(env.environment)}</b></y>"
)
logger.opt(colors=True).debug(
f"Loaded <y><b>Config</b></y>: {escape_tag(str(config.dict()))}"
)
DriverClass: Type[Driver] = _resolve_combine_expr(config.driver)
_driver = DriverClass(env, config)
def run(*args: Any, **kwargs: Any) -> None:
"""
启动 NoneBot即运行全局 Driver 对象。
参数:
*args: 传入 Driver.run 的位置参数
**kwargs: 传入 Driver.run 的命名参数
用法:
```python
nonebot.run(host="127.0.0.1", port=8080)
```
"""
logger.success("Running NoneBot...")
get_driver().run(*args, **kwargs)
import nonebot.params as params
from nonebot.plugin import export as export
from nonebot.plugin import require as require
from nonebot.plugin import on_regex as on_regex
from nonebot.plugin import on_notice as on_notice
from nonebot.plugin import get_plugin as get_plugin
from nonebot.plugin import on_command as on_command
from nonebot.plugin import on_keyword as on_keyword
from nonebot.plugin import on_message as on_message
from nonebot.plugin import on_request as on_request
from nonebot.plugin import load_plugin as load_plugin
from nonebot.plugin import on_endswith as on_endswith
from nonebot.plugin import CommandGroup as CommandGroup
from nonebot.plugin import MatcherGroup as MatcherGroup
from nonebot.plugin import load_plugins as load_plugins
from nonebot.plugin import on_metaevent as on_metaevent
from nonebot.plugin import on_startswith as on_startswith
from nonebot.plugin import load_from_json as load_from_json
from nonebot.plugin import load_from_toml as load_from_toml
from nonebot.plugin import load_all_plugins as load_all_plugins
from nonebot.plugin import on_shell_command as on_shell_command
from nonebot.plugin import get_loaded_plugins as get_loaded_plugins
from nonebot.plugin import load_builtin_plugin as load_builtin_plugin
from nonebot.plugin import load_builtin_plugins as load_builtin_plugins