reactor rpc (#179)

* reactor rpc generation

* update flag

* update command

* update command

* update unit test

* delete test file

* optimize code

* update doc

* update gen pb

* rename target dir

* update mysql data type convert rule

* add done flag

* optimize req/reply parameter

* optimize req/reply parameter

* remove waste code

* remove duplicate parameter

* format code

* format code

* optimize naming

* reactor rpcv2 to rpc

* remove new line

* format code

* rename underline to snake

* reactor getParentPackage

* remove debug log

* reactor background

tools/goctl/rpc/generator/prototmpl.go

@@ -0,0 +1,47 @@
+package generator
+
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/tal-tech/go-zero/tools/goctl/util"
+	"github.com/tal-tech/go-zero/tools/goctl/util/stringx"
+)
+
+const rpcTemplateText = `syntax = "proto3";
+
+package {{.package}};
+
+message Request {
+  string ping = 1;
+}
+
+message Response {
+  string pong = 1;
+}
+
+service {{.serviceName}} {
+  rpc Ping(Request) returns(Response);
+}
+`
+
+func ProtoTmpl(out string) error {
+	protoFilename := filepath.Base(out)
+	serviceName := stringx.From(strings.TrimSuffix(protoFilename, filepath.Ext(protoFilename)))
+	text, err := util.LoadTemplate(category, rpcTemplateFile, rpcTemplateText)
+	if err != nil {
+		return err
+	}
+
+	dir := filepath.Dir(out)
+	err = util.MkdirIfNotExist(dir)
+	if err != nil {
+		return err
+	}
+
+	err = util.With("t").Parse(text).SaveTo(map[string]string{
+		"package":     serviceName.UnTitle(),
+		"serviceName": serviceName.Title(),
+	}, out, false)
+	return err
+}