gozero template (#147)

* model/rpc generate code from template cache

* delete unused(deprecated) code

* support template init|update|clean|revert

* model: return the execute result for insert and update operation

* // deprecated: containsAny

* add template test

* add default buildVersion

* update build version

tools/goctl/api/gogen/template.go

@@ -1,6 +1,8 @@
 package gogen
 
 import (
+	"fmt"
+
 	"github.com/tal-tech/go-zero/tools/goctl/util"
 	"github.com/urfave/cli"
 )
@@ -27,3 +29,27 @@ var templates = map[string]string{
 func GenTemplates(_ *cli.Context) error {
 	return util.InitTemplates(category, templates)
 }
+
+func RevertTemplate(name string) error {
+	content, ok := templates[name]
+	if !ok {
+		return fmt.Errorf("%s: no such file name", name)
+	}
+	return util.CreateTemplate(category, name, content)
+}
+
+func Update(category string) error {
+	err := Clean()
+	if err != nil {
+		return err
+	}
+	return util.InitTemplates(category, templates)
+}
+
+func Clean() error {
+	return util.Clean(category)
+}
+
+func GetCategory() string {
+	return category
+}