adds api routes to documentation

vendor/github.com/go-chi/docgen/util.go

@@ -0,0 +1,37 @@
+package docgen
+
+func copyDocRouter(dr DocRouter) DocRouter {
+	var cloneRouter func(dr DocRouter) DocRouter
+	var cloneRoutes func(drt DocRoutes) DocRoutes
+
+	cloneRoutes = func(drts DocRoutes) DocRoutes {
+		rts := DocRoutes{}
+
+		for pat, drt := range drts {
+			rt := DocRoute{Pattern: drt.Pattern}
+			if len(drt.Handlers) > 0 {
+				rt.Handlers = DocHandlers{}
+				for meth, dh := range drt.Handlers {
+					rt.Handlers[meth] = dh
+				}
+			}
+			if drt.Router != nil {
+				rr := cloneRouter(*drt.Router)
+				rt.Router = &rr
+			}
+			rts[pat] = rt
+		}
+
+		return rts
+	}
+
+	cloneRouter = func(dr DocRouter) DocRouter {
+		cr := DocRouter{}
+		cr.Middlewares = make([]DocMiddleware, len(dr.Middlewares))
+		copy(cr.Middlewares, dr.Middlewares)
+		cr.Routes = cloneRoutes(dr.Routes)
+		return cr
+	}
+
+	return cloneRouter(dr)
+}