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/genetc.go

@@ -0,0 +1,32 @@
+package generator
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/tal-tech/go-zero/tools/goctl/rpc/parser"
+	"github.com/tal-tech/go-zero/tools/goctl/util"
+)
+
+const etcTemplate = `Name: {{.serviceName}}.rpc
+ListenOn: 127.0.0.1:8080
+Etcd:
+  Hosts:
+  - 127.0.0.1:2379
+  Key: {{.serviceName}}.rpc
+`
+
+func (g *defaultGenerator) GenEtc(ctx DirContext, _ parser.Proto) error {
+	dir := ctx.GetEtc()
+	serviceNameLower := formatFilename(ctx.GetMain().Base)
+	fileName := filepath.Join(dir.Filename, fmt.Sprintf("%v.yaml", serviceNameLower))
+
+	text, err := util.LoadTemplate(category, etcTemplateFileFile, etcTemplate)
+	if err != nil {
+		return err
+	}
+
+	return util.With("etc").Parse(text).SaveTo(map[string]interface{}{
+		"serviceName": serviceNameLower,
+	}, fileName, false)
+}