refactor: system类命令

pkg/qqbot/cmds/system/version.py

@@ -0,0 +1,27 @@
+from ..mgr import AbstractCommandNode, Context
+
+
+@AbstractCommandNode.register(
+    parent=None,
+    name="version",
+    description="查看版本信息",
+    usage="!version",
+    aliases=[],
+    privilege=1
+)
+class VersionCommand(AbstractCommandNode):
+    @classmethod
+    def process(cls, ctx: Context) -> tuple[bool, list]:
+        reply = []
+        import pkg.utils.updater
+    
+        reply_str = "[bot]当前版本:\n{}\n".format(pkg.utils.updater.get_current_version_info())
+        try:
+            if pkg.utils.updater.is_new_version_available():
+                reply_str += "\n有新版本可用，请使用命令 !update 进行更新"
+        except:
+            pass
+
+        reply = [reply_str]
+
+        return True, reply