add support for pongo2.TemplateLoader

README.md

@@ -1,3 +1,9 @@
+# pongo2 for gin
+
+github.com/flosch/pongo2 master branch is used.
+
+If you'd like to use pongo2.v3 see github.com/dalu/pongo2v3
+
 ```go
         package main
         
@@ -11,12 +17,12 @@
         func main () {
         	r := gin.Default()
 
-    		pr := ginpongo2.New("templates", gin.IsDebugging())
-    		// default is the TemplateSet name
     		// templates is the basePath
     		// gin.IsDebugging() means if gin is in debug/dev mode then templates
     		// will always be reloaded from disk, otherwise from cache and never
     		// reloaded.
+    		pr := ginpongo2.New("templates", gin.IsDebugging())
+ 
     		ginpongo2.Suffix = ".html.twig" // this is default
     		// when ever you render something reference it by prefix
     		// e.g. frontpage = frontpage.html.twig
@@ -33,3 +39,5 @@
     		r.Run(":8080")
         }
 ```
+
+You can also supply TemplateLoaders. See [pongo2.TemplateLoader](https://pkg.go.dev/github.com/flosch/pongo2?tab=doc#TemplateLoader) documentation. It allows you to for example embed resources from a virtual filesystem. 

render.go

@@ -46,7 +46,7 @@ func (r *PongoRenderer) WriteContentType(w http.ResponseWriter) {
 	}
 }
 
-func New(basedir string, debug bool) *Pongo {
+func New(basedir string, debug bool, loaders ...pongo2.TemplateLoader) *Pongo {
 	p := new(Pongo)
 	p.set = pongo2.NewSet("html")
 	p.set.Debug = debug
@@ -54,5 +54,8 @@ func New(basedir string, debug bool) *Pongo {
 		basedir = basedir + "/"
 	}
 	p.basedir = basedir
+	if len(loaders) > 0 {
+		p.set.AddLoader(loaders...)
+	}
 	return p
 }