refine goctl rpc generator

tools/goctl/rpc/gen/genetc.go

@@ -0,0 +1,30 @@
+package gogen
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/tal-tech/go-zero/tools/goctl/util"
+)
+
+const etcTemplate = `Name: {{.serviceName}}.rpc
+Log:
+  Mode: console
+ListenOn: 127.0.0.1:8080
+Etcd:
+  Hosts:
+  - 127.0.0.1:6379
+  Key: {{.serviceName}}.rpc
+`
+
+func (g *defaultRpcGenerator) genEtc() error {
+	etdDir := g.dirM[dirEtc]
+	fileName := filepath.Join(etdDir, fmt.Sprintf("%v.yaml", g.Ctx.ServiceName.Lower()))
+	if util.FileExists(fileName) {
+		return nil
+	}
+
+	return util.With("etc").Parse(etcTemplate).SaveTo(map[string]interface{}{
+		"serviceName": g.Ctx.ServiceName.Lower(),
+	}, fileName, false)
+}