lib, gui: Default ignores for new folders (fixes #7428) (#7530)

lib/config/wrapper.go

@@ -100,6 +100,7 @@ type Wrapper interface {
 	GUI() GUIConfiguration
 	LDAP() LDAPConfiguration
 	Options() OptionsConfiguration
+	DefaultIgnores() Ignores
 
 	Folder(id string) (FolderConfiguration, bool)
 	Folders() map[string]FolderConfiguration
@@ -437,6 +438,13 @@ func (w *wrapper) GUI() GUIConfiguration {
 	return w.cfg.GUI.Copy()
 }
 
+// DefaultIgnores returns the list of ignore patterns to be used by default on folders.
+func (w *wrapper) DefaultIgnores() Ignores {
+	w.mut.Lock()
+	defer w.mut.Unlock()
+	return w.cfg.Defaults.Ignores.Copy()
+}
+
 // IgnoredDevice returns whether or not connection attempts from the given
 // device should be silently ignored.
 func (w *wrapper) IgnoredDevice(id protocol.DeviceID) bool {