增加编译模版函数BuildTemplate可变参数，使之支持单个或多个模版的编译，同时针对开发模式，每个请求只编译当前请求相关模版

增加编译模版函数BuildTemplate可变参数，使之支持单个或多个模版的编译，同时针对开发模式，每个请求只编译当前请求相关模版，不再每次请求都编译全部模版

controller.go

@@ -200,8 +200,19 @@ func (c *Controller) RenderBytes() ([]byte, error) {
 		if c.TplNames == "" {
 			c.TplNames = strings.ToLower(c.controllerName) + "/" + strings.ToLower(c.actionName) + "." + c.TplExt
 		}
+		
 		if RunMode == "dev" {
-			BuildTemplate(ViewsPath)
+			buildFiles := make([]string, 1)
+			buildFiles = append(buildFiles, c.TplNames)
+			if c.LayoutSections != nil {
+				for _, sectionTpl := range c.LayoutSections {
+					if sectionTpl == "" {
+						continue
+					}
+					buildFiles = append(buildFiles, sectionTpl)
+				}
+			}
+			BuildTemplate(ViewsPath, buildFiles...)
 		}
 		newbytes := bytes.NewBufferString("")
 		if _, ok := BeeTemplates[c.TplNames]; !ok {
@@ -246,7 +257,7 @@ func (c *Controller) RenderBytes() ([]byte, error) {
 			c.TplNames = strings.ToLower(c.controllerName) + "/" + strings.ToLower(c.actionName) + "." + c.TplExt
 		}
 		if RunMode == "dev" {
-			BuildTemplate(ViewsPath)
+			BuildTemplate(ViewsPath, c.TplNames)
 		}
 		ibytes := bytes.NewBufferString("")
 		if _, ok := BeeTemplates[c.TplNames]; !ok {

template.go

@@ -127,7 +127,7 @@ func AddTemplateExt(ext string) {
 
 // build all template files in a directory.
 // it makes beego can render any template file in view directory.
-func BuildTemplate(dir string) error {
+func BuildTemplate(dir string, files... string) error {
 	if _, err := os.Stat(dir); err != nil {
 		if os.IsNotExist(err) {
 			return nil
@@ -148,11 +148,13 @@ func BuildTemplate(dir string) error {
 	}
 	for _, v := range self.files {
 		for _, file := range v {
-			t, err := getTemplate(self.root, file, v...)
-			if err != nil {
-				Trace("parse template err:", file, err)
-			} else {
-				BeeTemplates[file] = t
+			if (files == nil || utils.InSlice(file, files)) {
+				t, err := getTemplate(self.root, file, v...)
+				if err != nil {
+					Trace("parse template err:", file, err)
+				} else {
+					BeeTemplates[file] = t
+				}
 			}
 		}
 	}

template_test.go

@@ -123,7 +123,7 @@ func TestRelativeTemplate(t *testing.T) {
 			f.Close()
 		}
 	}
-	if err := BuildTemplate(dir); err != nil {
+	if err := BuildTemplate(dir, files[1]); err != nil {
 		t.Fatal(err)
 	}
 	if err := BeeTemplates["easyui/rbac/user.tpl"].ExecuteTemplate(os.Stdout, "easyui/rbac/user.tpl", nil); err != nil {