chore: migrate to gitea

vendor/github.com/gin-gonic/gin/render/render.go

@@ -0,0 +1,41 @@
+// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package render
+
+import "net/http"
+
+// Render interface is to be implemented by JSON, XML, HTML, YAML and so on.
+type Render interface {
+	// Render writes data with custom ContentType.
+	Render(http.ResponseWriter) error
+	// WriteContentType writes custom ContentType.
+	WriteContentType(w http.ResponseWriter)
+}
+
+var (
+	_ Render     = (*JSON)(nil)
+	_ Render     = (*IndentedJSON)(nil)
+	_ Render     = (*SecureJSON)(nil)
+	_ Render     = (*JsonpJSON)(nil)
+	_ Render     = (*XML)(nil)
+	_ Render     = (*String)(nil)
+	_ Render     = (*Redirect)(nil)
+	_ Render     = (*Data)(nil)
+	_ Render     = (*HTML)(nil)
+	_ HTMLRender = (*HTMLDebug)(nil)
+	_ HTMLRender = (*HTMLProduction)(nil)
+	_ Render     = (*YAML)(nil)
+	_ Render     = (*Reader)(nil)
+	_ Render     = (*AsciiJSON)(nil)
+	_ Render     = (*ProtoBuf)(nil)
+	_ Render     = (*TOML)(nil)
+)
+
+func writeContentType(w http.ResponseWriter, value []string) {
+	header := w.Header()
+	if val := header["Content-Type"]; len(val) == 0 {
+		header["Content-Type"] = value
+	}
+}