1 files changed, 52 insertions, 0 deletions
diff --git a/modules/templates/htmlrenderer.go b/modules/templates/htmlrenderer.go
new file mode 100644
index 0000000000..210bb5e73c
--- /dev/null
+++ b/modules/templates/htmlrenderer.go
@@ -0,0 +1,52 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package templates
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/watcher"
+
+	"github.com/unrolled/render"
+)
+
+var rendererKey interface{} = "templatesHtmlRendereer"
+
+// HTMLRenderer returns the current html renderer for the context or creates and stores one within the context for future use
+func HTMLRenderer(ctx context.Context) (context.Context, *render.Render) {
+	rendererInterface := ctx.Value(rendererKey)
+	if rendererInterface != nil {
+		renderer, ok := rendererInterface.(*render.Render)
+		if ok {
+			return ctx, renderer
+		}
+	}
+
+	rendererType := "static"
+	if !setting.IsProd {
+		rendererType = "auto-reloading"
+	}
+	log.Log(1, log.DEBUG, "Creating "+rendererType+" HTML Renderer")
+
+	renderer := render.New(render.Options{
+		Extensions:                []string{".tmpl"},
+		Directory:                 "templates",
+		Funcs:                     NewFuncMap(),
+		Asset:                     GetAsset,
+		AssetNames:                GetTemplateAssetNames,
+		UseMutexLock:              !setting.IsProd,
+		IsDevelopment:             false,
+		DisableHTTPErrorRendering: true,
+	})
+	if !setting.IsProd {
+		watcher.CreateWatcher(ctx, "HTML Templates", &watcher.CreateWatcherOpts{
+			PathsCallback:   walkTemplateFiles,
+			BetweenCallback: renderer.CompileTemplates,
+		})
+	}
+	return context.WithValue(ctx, rendererKey, renderer), renderer
+}