mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-12-01 01:25:07 +08:00
87 lines
2.3 KiB
Python
87 lines
2.3 KiB
Python
import importlib
|
|
import os
|
|
import re
|
|
from typing import Any, Set, Optional
|
|
|
|
from .log import logger
|
|
|
|
|
|
class Plugin:
|
|
__slots__ = ('module', 'name', 'usage')
|
|
|
|
def __init__(self, module: Any,
|
|
name: Optional[str] = None,
|
|
usage: Optional[Any] = None):
|
|
self.module = module
|
|
self.name = name
|
|
self.usage = usage
|
|
|
|
|
|
_plugins: Set[Plugin] = set()
|
|
|
|
|
|
def load_plugin(module_name: str) -> bool:
|
|
"""
|
|
Load a module as a plugin.
|
|
|
|
:param module_name: name of module to import
|
|
:return: successful or not
|
|
"""
|
|
try:
|
|
module = importlib.import_module(module_name)
|
|
name = getattr(module, '__plugin_name__', None)
|
|
usage = getattr(module, '__plugin_usage__', None)
|
|
_plugins.add(Plugin(module, name, usage))
|
|
logger.info(f'Succeeded to import "{module_name}"')
|
|
return True
|
|
except Exception as e:
|
|
logger.error(f'Failed to import "{module_name}", error: {e}')
|
|
logger.exception(e)
|
|
return False
|
|
|
|
|
|
def load_plugins(plugin_dir: str, module_prefix: str) -> int:
|
|
"""
|
|
Find all non-hidden modules or packages in a given directory,
|
|
and import them with the given module prefix.
|
|
|
|
:param plugin_dir: plugin directory to search
|
|
:param module_prefix: module prefix used while importing
|
|
:return: number of plugins successfully loaded
|
|
"""
|
|
count = 0
|
|
for name in os.listdir(plugin_dir):
|
|
path = os.path.join(plugin_dir, name)
|
|
if os.path.isfile(path) and \
|
|
(name.startswith('_') or not name.endswith('.py')):
|
|
continue
|
|
if os.path.isdir(path) and \
|
|
(name.startswith('_') or not os.path.exists(
|
|
os.path.join(path, '__init__.py'))):
|
|
continue
|
|
|
|
m = re.match(r'([_A-Z0-9a-z]+)(.py)?', name)
|
|
if not m:
|
|
continue
|
|
|
|
if load_plugin(f'{module_prefix}.{m.group(1)}'):
|
|
count += 1
|
|
return count
|
|
|
|
|
|
def load_builtin_plugins() -> int:
|
|
"""
|
|
Load built-in plugins distributed along with "nonebot" package.
|
|
"""
|
|
plugin_dir = os.path.join(os.path.dirname(__file__), 'plugins')
|
|
return load_plugins(plugin_dir, 'nonebot.plugins')
|
|
|
|
|
|
def get_loaded_plugins() -> Set[Plugin]:
|
|
"""
|
|
Get all plugins loaded.
|
|
|
|
:return: a set of Plugin objects
|
|
"""
|
|
return _plugins
|