Address stale css on restart automatically

context.go

@@ -26,6 +26,7 @@ type SnapContent struct {
 	Theme          string
 	Meta           map[string]string
 	Content        interface{}
+	Version        int64
 }
 
 func (c *Context) GetRequest() *http.Request {
@@ -106,6 +107,7 @@ func (c *Context) RenderEx(tmpl string, content interface{}) {
 		Theme:   c.srv.theme,
 		Meta:    c.srv.meta,
 		Content: content,
+		Version: c.srv.version,
 	}
 
 	if c.auth != nil {
@@ -132,6 +134,7 @@ func (c *Context) RenderWithMeta(tmpl string, meta map[string]string, content in
 		Theme:   c.srv.theme,
 		Meta:    meta,
 		Content: content,
+		Version: c.srv.version,
 	}
 
 	if c.auth != nil {

server.go

@@ -40,6 +40,7 @@ type Server struct {
 	// testModeEnabled if test mode is enabled we will not render the template but jsut return the
 	//   json object
 	testModeEnabled bool
+	version         int64
 }
 
 type SnapBaseContent struct {
@@ -401,6 +402,11 @@ func (s *Server) WithAuth(auth auth.Authenticator) *Server {
 	return s
 }
 
+func (s *Server) WithVersion(version int64) *Server {
+	s.version = version
+	return s
+}
+
 func (s *Server) WithHealthCheck(version, date string, status func() (bool, string)) {
 	s.HandleFunc("/_health", func(c *Context) {
 		ok, msg := status()
@@ -449,6 +455,7 @@ func New(address string, path string, auth auth.Authenticator) *Server {
 		theme:         "/static/css/default.css",
 		meta:          make(map[string]string),
 		log:           log.WithName("SNAP"),
+		version:       time.Now().Unix(),
 	}
 	return &s
 }