feat: 插件文件更改热重载

pkg/core/app.py

@@ -5,6 +5,7 @@ import asyncio
 import threading
 import traceback
 import enum
+import sys
 
 from ..platform import manager as im_mgr
 from ..provider.session import sessionmgr as llm_session_mgr
@@ -106,10 +107,8 @@ class Application:
         pass
 
     async def run(self):
-        await self.plugin_mgr.initialize_plugins()
-
         try:
-   
+            await self.plugin_mgr.initialize_plugins()
             # 后续可能会允许动态重启其他任务
             # 故为了防止程序在非 Ctrl-C 情况下退出，这里创建一个不会结束的协程
             async def never_ending():
@@ -171,5 +170,21 @@ class Application:
                 await self.platform_mgr.initialize()
 
                 self.task_mgr.create_task(self.platform_mgr.run(), name="platform-manager", scopes=[core_entities.LifecycleControlScope.APPLICATION, core_entities.LifecycleControlScope.PLATFORM])
+            case core_entities.LifecycleControlScope.PLUGIN.value:
+                self.logger.info("执行热重载 scope="+scope)
+                await self.plugin_mgr.destroy_plugins()
+
+                # 删除 sys.module 中所有的 plugins/* 下的模块
+                for mod in list(sys.modules.keys()):
+                    if mod.startswith("plugins."):
+                        del sys.modules[mod]
+
+                self.plugin_mgr = plugin_mgr.PluginManager(self)
+                await self.plugin_mgr.initialize()
+
+                await self.plugin_mgr.initialize_plugins()
+
+                await self.plugin_mgr.load_plugins()
+                await self.plugin_mgr.initialize_plugins()
             case _:
                 pass

pkg/plugin/context.py

@@ -98,6 +98,7 @@ class BasePlugin(metaclass=abc.ABCMeta):
         pass
 
     def __del__(self):
+        """释放/禁用插件时被调用"""
         pass
 
 

pkg/plugin/manager.py

@@ -89,6 +89,7 @@ class PluginManager:
             return
         
         self.ap.logger.debug(f'释放插件 {plugin.plugin_name}')
+        plugin.plugin_inst.__del__()
         await plugin.plugin_inst.destroy()
         plugin.plugin_inst = None
         plugin.status = context.RuntimeContainerStatus.MOUNTED
@@ -124,6 +125,9 @@ class PluginManager:
             }
         )
 
+        task_context.trace('重载插件..', 'reload-plugin')
+        await self.ap.reload(scope='plugin')
+
     async def uninstall_plugin(
         self,
         plugin_name: str,
@@ -131,10 +135,15 @@ class PluginManager:
     ):
         """卸载插件
         """
-        await self.installer.uninstall_plugin(plugin_name, task_context)
 
         plugin_container = self.get_plugin_by_name(plugin_name)
 
+        if plugin_container is None:
+            raise ValueError(f'插件 {plugin_name} 不存在')
+
+        await self.destroy_plugin(plugin_container)
+        await self.installer.uninstall_plugin(plugin_name, task_context)
+
         await self.ap.ctr_mgr.plugin.post_remove_record(
             {
                 "name": plugin_name,
@@ -144,6 +153,9 @@ class PluginManager:
             }
         )
 
+        task_context.trace('重载插件..', 'reload-plugin')
+        await self.ap.reload(scope='plugin')
+
     async def update_plugin(
         self,
         plugin_name: str,
@@ -167,6 +179,8 @@ class PluginManager:
             new_version="HEAD"
         )
 
+        task_context.trace('重载插件..', 'reload-plugin')
+        await self.ap.reload(scope='plugin')
 
     def get_plugin_by_name(self, plugin_name: str) -> context.RuntimeContainer:
         """通过插件名获取插件

web/src/App.vue

@@ -73,6 +73,11 @@
                       </v-list-item-title>
                     </v-list-item>
 
+                    <v-list-item @click="reload('plugin')">
+                      <v-list-item-title>
+                        重载插件
+                      </v-list-item-title>
+                    </v-list-item>
                   </v-list>
                 </v-menu>
               </v-list-item>
@@ -143,21 +148,26 @@ function openDocs() {
   window.open('https://docs.langbot.app', '_blank')
 }
 
+const reloadScopeLabel = {
+  'platform': "消息平台",
+  'plugin': "插件"
+}
+
 function reload(scope) {
+  let label = reloadScopeLabel[scope]
   proxy.$axios.post('/system/reload',
     { scope: scope },
     { headers: { 'Content-Type': 'application/json' } }
   ).then(response => {
     if (response.data.code === 0) {
-      success('消息平台已重载')
+      success(label+'已重载')
 
       // 关闭菜单
     } else {
-      error('消息平台重载失败：' + response.data.message)
+      error(label+'重载失败：' + response.data.message)
     }
-  }).catch(error => {
-    console.error(error)
-    error('消息平台重载失败：' + error)
+  }).catch(err => {
+    error(label+'重载失败：' + err)
   })
 
 }