Only generate bindata if necessary

Makefile

@@ -161,7 +161,7 @@ vet:
 
 .PHONY: generate
 generate: fomantic js css
-	GO111MODULE=on $(GO) generate -mod=vendor $(PACKAGES)
+	GO111MODULE=on $(GO) generate -mod=vendor -tags '$(TAGS)' $(PACKAGES)
 
 .PHONY: generate-swagger
 generate-swagger:

modules/options/options.go

@@ -4,8 +4,6 @@
 
 package options
 
-//go:generate go run -mod=vendor main.go
-
 type directorySet map[string][]string
 
 func (s directorySet) Add(key string, value []string) {

modules/options/options_bindata.go

@@ -0,0 +1,9 @@
+// Copyright 2020 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.
+
+//+build bindata
+
+package options
+
+//go:generate go run -mod=vendor main.go

modules/public/public.go

@@ -18,8 +18,6 @@ import (
 	"gitea.com/macaron/macaron"
 )
 
-//go:generate go run -mod=vendor main.go
-
 // Options represents the available options to configure the macaron handler.
 type Options struct {
 	Directory   string

modules/public/public_bindata.go

@@ -0,0 +1,9 @@
+// Copyright 2020 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.
+
+//+build bindata
+
+package public
+
+//go:generate go run -mod=vendor main.go

modules/templates/templates.go → modules/templates/templates_bindata.go

@@ -2,6 +2,8 @@
 // Use of this source code is governed by a MIT-style
 // license that can be found in the LICENSE file.
 
+//+build bindata
+
 package templates
 
 //go:generate go run -mod=vendor main.go