support config cli (#742)

* #665 support get/set config via CLI

* #665 support get/set config via CLI

* #665 add unittest for config CLI

* #665 remove config_node_map_

* #665 remove config_node_map_

* #665 fix clang-format

* #665 fix clang-format

* #665 update changelog

* #665 code clean

* #665 update API interface

* #665 update API interface

* #665 handle server status

* #665 handle unknown command

* #665 update debug log

* #665 support get/set config via CLI

* #665 support get/set config via CLI

* #665 add unittest for config CLI

* #665 remove config_node_map_

* #665 remove config_node_map_

* #665 fix clang-format

* #665 fix clang-format

* #665 update changelog

* #665 code clean

* #665 update API interface

* #665 update API interface

* #665 handle server status

* #665 handle unknown command

* #665 update debug log

core/src/server/delivery/request/CmdRequest.cpp

@@ -38,9 +38,12 @@ Status
 CmdRequest::OnExecute() {
     std::string hdr = "CmdRequest(cmd=" + cmd_ + ")";
     TimeRecorderAuto rc(hdr);
+    Status stat = Status::OK();
 
     if (cmd_ == "version") {
         result_ = MILVUS_VERSION;
+    } else if (cmd_ == "status") {
+        result_ = "OK";
     } else if (cmd_ == "tasktable") {
         result_ = scheduler::ResMgrInst::GetInstance()->DumpTaskTables();
     } else if (cmd_ == "mode") {
@@ -49,11 +52,14 @@ CmdRequest::OnExecute() {
 #else
         result_ = "CPU";
 #endif
+    } else if (cmd_.substr(0, 3) == "set" || cmd_.substr(0, 3) == "get") {
+        server::Config& config = server::Config::GetInstance();
+        stat = config.HandleConfigCli(result_, cmd_);
     } else {
-        result_ = "OK";
+        result_ = "Unknown command";
     }
 
-    return Status::OK();
+    return stat;
 }
 
 }  // namespace server