tag fix

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

README.md

@@ -15,8 +15,9 @@ $> protoc --micro_out=debug=true,components="micro|http":. input.proto
 
 | Option                | Default Value | Accepted Values           | Description
 |-----------------------|---------------|---------------------------|-----------------------
+| `tag_path`            | `.`           | `any local path`          | path contains generated protobuf code that needs to be tagged
 | `debug`               | *false*       | `true` or `false`         | if *true*, `protoc` will generate a more verbose output
-| `components`          | `micro`       | `micro rpc http chi gorilla` | some values cant coexists like gorilla/chi or rpc/http, values must be concatinated with pipe symbol
+| `components`          | `micro`       | `micro rpc http chi gorilla client server` | some values can't coexists like gorilla/chi or rpc/http, values must be concatinated with pipe symbol
 
 ## Install
 

ast.go

@@ -20,6 +20,9 @@ var (
 )
 
 func (g *Generator) astGenerate(plugin *protogen.Plugin) error {
+	if g.tagPath == "" {
+		return nil
+	}
 	for _, file := range plugin.Files {
 		if !file.Generate {
 			continue
@@ -41,7 +44,10 @@ func (g *Generator) astGenerate(plugin *protogen.Plugin) error {
 					if !ok {
 						mp = make(map[string]map[string]*structtag.Tags)
 					}
-					nmp := make(map[string]*structtag.Tags)
+					nmp, ok := mp[message.GoIdent.GoName]
+					if !ok {
+						nmp = make(map[string]*structtag.Tags)
+					}
 					tags, err := structtag.Parse(opts.(string))
 					if err != nil {
 						return err

example/example.proto

@@ -0,0 +1,44 @@
+syntax = "proto3";
+
+package example;
+
+option go_package = "github.com/unistack-org/protoc-gen-micro/v3/example;examplepb";
+
+import "tag/tag.proto";
+import "api/annotations.proto";
+import "openapiv2/annotations.proto";
+import "google/protobuf/wrappers.proto";
+
+service Example {
+	rpc Call(CallReq) returns (CallRsp) {
+		option (micro.openapiv2.openapiv2_operation) = {
+      operation_id: "Call";
+        responses: {
+          key: "default";
+          value: {
+            description: "Error response";
+            schema: {
+              json_schema: {
+                ref: ".example.Error";
+              }
+            }
+          }
+        }
+    };
+		option (micro.api.http) = { post: "/v1/example/call/{name}"; body: "*"; };
+		option (micro.api.micro_method) = { timeout: 5; };
+  };
+};
+
+message CallReq {
+  string name = 1 [(micro.tag.tags) = "xml:\",attr\"" ];
+  string req = 2;
+};
+
+message CallRsp {
+  string rsp = 2;
+};
+
+message Error {
+	string msg = 1;
+};

main.go

@@ -13,7 +13,7 @@ var (
 	flagDebug      = flag.Bool("debug", false, "")
 	flagStandalone = flag.Bool("standalone", false, "")
 	flagComponents = flag.String("components", "micro|rpc|http|client|server", "")
-	flagTagPath    = flag.String("tag_path", ".", "")
+	flagTagPath    = flag.String("tag_path", "", "")
 )
 
 func main() {